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Location: New York, New York Workplace: hybrid About the Company CertiK is the largest blockchain security auditor and provides a comprehensive suite of tools to secure the industry at scale. To date, CertiK has worked with over 4,900 Enterprise clients, secured over $557 billion worth of digital assets, and has detected over 18,000 vulnerabilities in blockchain code. Our clients include leading projects such as OKX, Tether, Ripple, and Pancakeswap. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance.   Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors. Responsibilities Office Administration: Manage general office operations and supplies. Provide ad-hoc administrative support as needed. Support in-house events, including setup, coordination, and post-event wrap-up. HR Support: Assist with company events. Assist with swag and inventory management. Coordinate with vendors and service providers as needed. IT Support: Coordinate with IT for basic tech logistics, such as shipping, receiving, and tracking devices. Offering general administrative support, like a help desk. Requirements: Based in Midtown Manhattan (near Bryant Park); must be able to provide on-site support. Highly organized, proactive, and detail-oriented, with the ability to manage multiple priorities in a fast-paced environment. Strong communication skills in English; Mandarin proficiency is a plus. Hands-on, execution-driven mindset with a willingness to take ownership and get things done. Comfortable using tools such as Google Workspace, Slack, and spreadsheets. Open to candidates at an early stage of their careers who demonstrate strong ownership and a willingness to learn. Authorized to work in the U.S.; visa sponsorship may be considered for high-performing candidates. CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.   In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.   CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.   CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf   All CertiK employees are expected to actively support diversity on their teams, and in the Company.

Location: Dubai, United Arab Emirates As a Security Architect at Müller’s Solutions, you will be pivotal in defining the security architecture strategy for our organization. You will be responsible for designing and implementing comprehensive security solutions and frameworks that protect our critical information assets. This role requires a deep understanding of security principles, technologies, and industry standards as you collaborate with various departments to safeguard our digital infrastructure. Key Responsibilities: • Develop and maintain the security architecture framework, policies, and procedural guidelines to ensure compliance with regulatory and organizational requirements. • Conduct security assessments, threat modeling, and risk analysis to identify vulnerabilities and recommend appropriate mitigation strategies. • Collaborate with IT and development teams to integrate security practices throughout the software development lifecycle. • Design and implement robust security solutions, including identity and access management, encryption, and network security measures. • Stay updated on the latest security trends, threats, and technologies to proactively address emerging risks. • Provide training and guidance to team members and stakeholders on security best practices and risk management. Requirements Requirements: Bachelor’s degree in Computer Science, Information Technology, Cybersecurity, or a related field. 5+ years of experience in security architecture or a related role, with a strong focus on designing and implementing secure systems and infrastructures . End-to-end experience in designing and implementing secure infrastructure environments supporting classified data (Top Secret, Secret, Confidential, etc.). Proven expertise in data classification , data governance , and secure data transfer workflows between classified and non-classified zones . In-depth knowledge of security frameworks, practices, and standards such as: ISO/IEC 27001:2022 NIST SP 800-53 Rev. 5 NIST SP 800-37 Rev. 2 NIST SP 800-46 Rev. 2 NIST FIPS 140-2 NIST FIPS 199 Secure Controls Framework (SCF) CIS Critical Security Controls Version 8 CIS Benchmarks OWASP Familiarity with regional and governmental security regulations , including UAE Information Assurance (IA) and Ministry of Defence (MOD) requirements. Experience with security technologies such as firewalls, SIEM, endpoint protection, and identity and access management (IAM) solutions. Technical proficiency in cloud security , with experience in platforms such as AWS or Microsoft Azure . Strong analytical , problem-solving , and communication skills , with the ability to clearly articulate complex security concepts to technical and non-technical audiences. Preferred Qualifications: Master's degree in a related field. Relevant certifications such as CISSP, CISM, or CCSP. Experience with security compliance and governance frameworks. Knowledge of secure coding practices and experience in a DevSecOps environment. TOGAF certification would be an asset. Benefits 1- Attractive Package. 2- Family Benefits. 3- Visa. 4-Air Tickets.

Location: Cyprus; Portugal; Spain; Latvia; Germany Intetics Inc. , a global technology company providing custom software application development, distributed professional teams, software product quality assessment, and “all-things-digital” solutions, is seeking a highly skilled and experienced Senior PHP Engineer to join our dynamic team. As a Senior PHP Developer at Intetics, you will be responsible for developing, maintaining, and enhancing web applications using PHP and related technologies. You will work closely with cross-functional teams to deliver high-quality software solutions that meet client requirements and industry best practices. The client is a leading company specializing in advanced cybersecurity solutions. They provide comprehensive security measures designed to protect sensitive data and systems from cyber threats. Their offerings include vulnerability management, threat intelligence, incident response, and compliance management. With cutting-edge technology and a team of experts, they ensure robust protection for organizations across various industries, helping clients stay ahead of evolving cyber threats and maintain a secure digital environment. About the project: The only Risk-Based Vulnerability Management Platform purpose-built for the world’s most complex enterprises. Requirements Minimum of 5 years of professional experience in PHP development Excellent knowledge of DB Extensive experience working with large volumes of data Experience in writing complex and optimized SQL queries Excellent knowledge of modern versions of PHP Experience working with relational databases (SingleStore/MemSQL a bonus) Experience maintaining applications on Linux platforms in cloud environments Background following Agile/Scrum methodologies in a professional setting Demonstrated experience with technical troubleshooting Ability to work independently and with a team, including with a team across different time zones Would be a plus: Experience working with vulnerability scanning technologies on any part of the tech stack (e.g., SCA, SAST, DAST, IAST, VM scanning, container, etc.) Experience working in cloud environments, ideally AWS Experience working with data analytics and/or data science Benefits Paid Time Off (36 paid days per year) Work From Home Training & Development Partial medical compensation

Location: Remote: United States; Remote: Canada Workplace: Remote At Render, we’re building the modern cloud platform for developers creating AI-native, full-stack, multi-service applications. Our mission is to eliminate the tradeoff between the power of hyperscalers and the simplicity of developer-friendly platforms—so teams can ship fast, scale reliably, and focus on their product, not infrastructure. Unlike complex hyperscalers or ephemeral edge/serverless solutions, Render offers a developer-first experience with persistent compute, dynamic autoscaling, built-in orchestration, and observability, allowing teams to launch, scale, and manage real-world applications without writing infrastructure code or managing servers. Whether you're building LLM-powered applications, scalable SaaS products, or async processing pipelines, Render empowers teams to move fast and scale confidently from MVP to millions of users. Our platform is trusted by over 7 million developers worldwide and continues to grow rapidly. In February 2026, we raised an additional $100M in Series C financing, bringing our total funding to $260M, to accelerate our vision of making cloud infrastructure both powerful and intuitive—designed for the speed of modern AI development. We’re a diverse and talented team that values craft, velocity, and user experience. If you’re excited to help shape the future of the intelligent cloud and empower developers everywhere, we’d love to hear from you. APPLYING TO RENDER We're seeking candidates who possess high integrity, humility, and an insatiable drive to learn. Through reasoned discussions and continuous feedback, we strive to improve both individually and collectively. We foster an environment of mutual trust and respect, empowering effective debate to achieve the best outcomes for our customers and team. We especially encourage members of underrepresented groups in the tech community to apply and understand that not all successful candidates will meet each requirement listed. Our interview process is unique to each role, and we value the candidate experience just as much as our customer experience. We hope your conversations with us reflect a thoughtful process that is illuminative, enjoyable, and respectful of your time. ABOUT THE ROLE The Render Security team is a small, dedicated team of engineers that runs all things security at Render. - Full-Stack Security Ownership - We don't just monitor; we build. From custom security tooling to comprehensive threat assessment, we own the entire security lifecycle at Render. - Engineering-First Approach - We are a team of engineers that understand security deeply, we create solutions that integrate seamlessly with development workflows rather than creating friction. - Proactive - We stay ahead of threats through continuous assessment, automated monitoring, and rapid response. By joining Render at an early stage, you will be directly involved with building out foundational security for Render and make decisions that will shape our product and company, directly impacting developers around the globe. YOU WILL: - Build internal tooling to enable secure access to resources (e.g., wrappers, utilities, authentication services, and proxies). - Implement detection and monitoring systems that alert the team to high signal vulnerabilities - Analyze and assess security issues identified through threat modeling, penetration testing, security scans and vulnerability disclosure. - Work with developers on sensitive code paths and educate them on secure design patterns. - Liaise with customers regarding their security and compliance needs, and in return, inform our security program. - Communicate security risks and solutions to technical and non-technical stakeholders as part of company-wide planning and prioritization processes. - Stay up-to-date with the latest security threats, vulnerabilities, and best practices and make recommendations for improvements to our security posture. - Partner with product engineering teams to inform and build thoughtful security features for our customers. - Continually ensure that our systems have appropriate authentication, authorization, and accounting with low internal overhead. WE'RE LOOKING FOR: - 6+ years of professional experience in software engineering or security. - Experience designing and building secure web applications, tools, and APIs. - Experience with vulnerability review and analysis - Strong incident leadership and diligent response. - Empathy toward the rest of the team and our customers - Strong sense of ownership and ability to make pragmatic decisions about your work. NICE-TO-HAVES: - Detection engineering experience through implementation and maintenance of a SIEM. - Experience with any of the technologies the Render product runs on: Go, Typescript, Kubernetes, Postgres, Terraform, Temporal. - Experience with compliance frameworks such as SOC 2, ISO 27001, HIPAA or PCI. - Proven expertise in exploiting common security vulnerabilities, demonstrating practical experience in identifying and leveraging vulnerabilities to assess security posture. - Experience securing applications and systems through threat modelling and risk assessments. - Active participation and contributions to the security community through public research, blogging, presentations, and other means. If this role excites you but you don’t meet every single requirement, we’d still love to hear from you—your unique experience might be just what we need. BENEFITS - 4 weeks of paid vacation. - 14 weeks of fully paid parental leave for all parents to bond with a newly born, adopted, or fostered child. We will also work with you to create a supportive plan of return. - Long-term disability, life insurance, and 401K plans. - 100% employer-paid medical coverage and 99% employer-paid dental and vision coverage for you and a dependent. FSAs and HSAs are available as well. - Monthly lifestyle stipend for wellness, mental health and therapy, hobbies, etc. - Monthly cell phone and internet subsidy. - Commuter benefits for Renders in the Bay Area, and home office stipends for remote Renders. - Continuous learning benefits & related support. This position is generally not eligible for new visa sponsorship. At Render's discretion, the business may sponsor existing visa transfers. Applicants who require sponsorship must receive business authorization. Render is an equal-opportunity employer. We know that employing a team rich in diverse thoughts, experiences, and opinions allows our employees, product, and community to flourish. We make all employment decisions including hiring, evaluation, termination, promotional, and training opportunities, without regard to race, religion, color, sex, age, national origin, ancestry, sexual orientation, physical handicap, mental disability, medical condition, disability, gender or identity or expression, pregnancy or pregnancy-related condition, marital status, height and/or weight. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation. We encourage all who are interested to apply. We can't wait to hear from you! Render — CCPA Applicant Privacy Notice https://drive.google.com/file/d/1wKr9IejoT5McFrs9I2mahQnf6AFwb3z2/view Render — GDPR Applicant Privacy Notice https://drive.google.com/file/d/1_8jtyXQ1HdRdTdQn9sZ7n-R-zAGBmsFa/view

Location: US / Remote Workplace: remote About the Company CertiK is the largest blockchain security auditor and provides a comprehensive suite of tools to secure the industry at scale. To date, CertiK has worked with over 4,900 Enterprise clients, secured over $557 billion worth of digital assets, and has detected over 18,000 vulnerabilities in blockchain code. Our clients include leading projects such as OKX, Tether, Ripple, and Pancakeswap. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance. About the Role  We are seeking a Junior Blockchain Security Engineer with a strong security mindset and foundational technical expertise across smart contracts, blockchain nodes, and decentralized infrastructure. In this role, you will support Web3 projects by assisting in code audits, contributing to security tools, and conducting research under guidance. If you are eager to grow your career in blockchain security and passionate about securing decentralized technologies, we’d love to hear from you. Responsibilities Audit and review codebases for smart contracts, blockchain protocols, and decentralized applications (dApps) to identify and remediate vulnerabilities. Conduct guided security research, explore new attack vectors, and deliver actionable insights. Contribute to the design, development, and maintenance of internal security tools and frameworks. Support improvements to internal processes, methodologies, and service offerings, ensuring high-quality delivery for clients. Requirements Bachelor’s, Master’s, or PhD in Mathematics, Computer Science, or Information Security. At least 1 years of hands-on experience with blockchain technologies, including: Smart contracts (EVM chains, Solana, Move, etc.), Blockchain protocols (nodes, SDKs, Cosmos, etc.) Experience in threat modeling, risk assessment, and security analysis. Proficiency in one or more programming languages: Rust, Go, Solidity, Python, etc. Passion for Cryptocurrency, DeFi, and Blockchain technologies. Preferred Qualifications Solid academic or practical background in Mathematics, Cryptography, or Cybersecurity. Demonstrated experience conducting audits and collaborating with leading Web3 protocols. Recognized achievements such as published CVEs, or strong placements in Attackathons, Bug Bounties, or Audit Contests. Compensation Target annual salary for this role performed in the US is $102,000 - $180,000. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates. CertiK accepts applications for this position on an ongoing basis. CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.  In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire. CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.  CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf  All CertiK employees are expected to actively support diversity on their teams, and in the Company.

Location: Cairo, Egypt As a Network & Security Administrator at Müller's Solutions, you will play a crucial role in maintaining the integrity, security, and performance of our network systems. This multifaceted position involves monitoring and managing both network infrastructure and security protocols to protect sensitive data from potential threats. You will work collaboratively with IT teams to ensure seamless network operations, implement security measures, and respond to incidents effectively. Key Responsibilities: Configure, monitor, and maintain network devices, including routers, switches, firewalls, and access points. Implement and enforce network security policies and procedures to safeguard the organization's data and systems. Conduct regular network and security assessments to identify vulnerabilities and recommend improvements. Respond to and investigate security incidents, coordinating efforts for resolution and reporting. Manage user access controls and permissions within network systems, ensuring compliance with security standards. Document network configurations, security policies, and procedures to maintain accurate records. Stay current with the latest cybersecurity trends and technologies, applying best practices in network management and security. Requirements Requirements: Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field. 3-5 years of experience in network administration and security management. Strong understanding of networking concepts, protocols (TCP/IP, DNS, DHCP), and technologies. Experience with configuring and managing network security devices, such as firewalls (Palo Alto, Cisco ASA), IDS/IPS, and VPNs. Familiarity with active directory, user authentication, and access management. Proficiency in troubleshooting and resolving network and security-related issues in a timely manner. Excellent analytical and problem-solving skills, coupled with strong communication abilities. Relevant certifications such as CompTIA Security+, Cisco CCNA, or equivalent are preferred. Preferred Qualifications: Experience with cloud services and network management in platforms such as AWS or Azure. Knowledge of network monitoring tools and security best practices. Familiarity with compliance frameworks (PCI DSS, HIPAA) and incident response processes. Advanced certifications such as CCNP Security or CISSP are a plus. Demonstrated ability to work collaboratively in a fast-paced environment and manage multiple priorities.

Location: Riyadh, Saudi Arabia As an Infrastructure Architect for a 3-month contract, you will be integral in designing and implementing effective infrastructure solutions that align with the business goals of Müller’s Solutions. You will utilize your technical expertise to develop infrastructure architectures that ensure performance, security, and scalability while collaborating closely with various teams to understand their needs and translate them into actionable plans. What about the role responsibilities? •   Collaborate with IT, operations, and other business units to gather requirements and design appropriate infrastructure solutions. •   Create documentation for infrastructure architecture as well as processes and standards. •   Conduct assessments and provide recommendations on current infrastructure and systems. •   Identify and address security vulnerabilities within the infrastructure. •   Ensure that infrastructure projects are delivered on time and within budget while adhering to industry standards. •   Stay updated with industry trends and emerging technologies to integrate into our architecture designs. Requirements What should you have to fit in this role? •   Bachelor’s degree in Computer Science, Information Technology, or a related field. •   4-6 years of experience in infrastructure architecture, demonstrating a history of successful infrastructure solutions delivery. •   Strong understanding of current infrastructure technologies, network configurations, and cloud services. •   Certification in TOGAF or other relevant architecture frameworks is a plus. •   Familiarity with information security best practices and frameworks. •   Excellent problem-solving skills and the ability to work independently or as part of a team. To succeed in this role, it's nice to have: •   Experience in agile or DevOps methodologies, enhancing your capability to work in a fast-paced environment. •   Knowledge of enterprise-level projects and designs, contributing to the strategic planning of IT infrastructure. •   Strong communication skills for effectively sharing ideas and collaborating with non-technical stakeholders. Benefits 1- Attractive Package. 2- Family Benefits. 3- Visa. 4-Air Tickets.

Location: US / Remote Workplace: remote About the Company CertiK is the largest blockchain security auditor and provides a comprehensive suite of tools to secure the industry at scale. To date, CertiK has worked with over 4,900 Enterprise clients, secured over $557 billion worth of digital assets, and has detected over 18,000 vulnerabilities in blockchain code. Our clients include leading projects such as OKX, Tether, Ripple, and Pancakeswap. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance.     Investors = Insight Partners, Sequoia, Tiger Global, Coatue Management, Lightspeed, Advent International, SoftBank, Hillhouse Capital, Goldman Sachs, Shunwei Capital, IDG Capital, Wing, Legend Star, Danhua Capital and other investors.   About the Role The primary focus of this role is to pioneer the development of an intelligent AI agent powered by large language models (LLMs) to enhance our security audit tools in the blockchain space. As a Blockchain Security Expert on the AI Track, you will work closely with our blockchain security team to bridge cutting-edge academic research with practical applications. Your efforts will be dedicated to developing, testing, and optimizing LLM-driven AI agents that automatically analyze smart contracts and identify potential vulnerabilities. In this role, you'll be immersed in research and experimentation, exploring new methods to improve threat detection and risk assessment within our security audit platform, thereby directly contributing to more secure blockchain infrastructures. Responsibilities Collaborate with our blockchain security team to develop an LLM-based AI agent for security audit tools. Experiment with novel AI techniques to enhance threat detection and risk assessment in blockchain environments. Assist in transforming cutting-edge research on AI agents into practical, scalable security auditing solutions. Continuously research emerging trends in LLMs, AI agent architectures, and cybersecurity, and proactively propose improvements. Requirements A bachelor’s degree (or higher), preferably in a science or engineering field. 2+ years of security or software development experience. Familiar with blockchain and smart contract technologies. Familiar with agentic coding tools, such as Cursor, Windsurf, Cline, etc. Strong and creative problem-solving skills; always willing to learn and embrace new technologies, and to collaborate. Preferred Qualifications Prior research or project experience in developing AI agents or automated security analysis tools. Demonstrated ability to translate research insights into effective, production-ready tools. Prior knowledge of web3 security audits. Hands-on blockchain experience, such as evaluating risks for blockchain projects or analyzing on-chain security events. Compensation: If the role is performed in the US, the target annual compensation is $120,000 - $180,000. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates.   #blockchain #startups #hiring   CertiK accepts applications for this position on an ongoing basis.   CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.   In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.   CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.   CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf   All CertiK employees are expected to actively support diversity on their teams, and in the Company.

Location: Riyadh, Saudi Arabia As an IT System Administrator at Müller's Solutions, you will be responsible for managing and maintaining our organization's IT infrastructure, ensuring reliable operation of servers and systems. You will be instrumental in implementing and supporting network and server environments, while also ensuring the security and integrity of our systems against vulnerabilities. This role involves proactive monitoring, troubleshooting, and optimizing system performance to support business operations. Key Responsibilities: Install, configure, and maintain server operating systems, applications, and hardware. Monitor system performance and troubleshoot issues to ensure high availability and performance of IT services. Manage user accounts, permissions, and access controls for systems and applications. Implement and oversee data backup and recovery processes, ensuring data integrity and disaster recovery procedures are in place. Provide technical support for staff and troubleshoot IT-related issues across the organization. Ensure system security measures are in place, including firewalls, anti-virus software, and patch management. Assist in planning and implementing system migrations, upgrades, and expansions to meet organizational needs. Document system configurations, procedures, and guidelines for future reference. Requirements Requirements: Bachelor's degree in Computer Science, Information Technology, or a related field. 3-5 years of experience in system administration or a related role. Strong knowledge of server operating systems (Windows Server, Linux) and virtualization technologies (VMware, Hyper-V). Experience with network protocols, services, and security measures. Ability to troubleshoot and resolve hardware and software issues effectively. Familiarity with backup and disaster recovery solutions. Excellent communication skills, with the ability to assist and train users on IT best practices. Relevant certifications such as Microsoft Certified Solutions Associate (MCSA) or Red Hat Certified System Administrator (RHCSA) are a plus. Preferred Qualifications: Experience with cloud services (AWS, Azure) and automation tools. Knowledge of scripting languages (PowerShell, Bash) for automation tasks. Experience with IT service management tools or frameworks (ITIL). Understanding of database management (SQL Server, MySQL) and application server environments is advantageous. Strong problem-solving skills and a proactive approach to system management. Benefits Why Join Us: Opportunity to work with a talented and passionate team. Competitive salary and benefits package. Exciting projects and innovative work environment.

Location: Portugal Action1 is an autonomous endpoint management platform trusted by many Fortune 500 companies. Cloud-native, infinitely scalable, highly secure, and configurable in 5 minutes—it just works and is always free for the first 200 endpoints, with no functional limits. By pioneering autonomous OS and third-party patching with peer-to-peer patch distribution and real-time vulnerability assessment without needing a VPN, it eliminates routine labor, preempts ransomware and security risks, and protects the digital employee experience. In 2025, Action1 was recognized by Inc. 5000 as the fastest-growing private software company in America. The company is founder-led by Alex Vovk and Mike Walters, American entrepreneurs who previously founded Netwrix, a multi-billion-dollar cybersecurity company. We are stepping into an exciting growth stage and are looking for a Full Stack developer to join our amazing development team. You will: Develop and maintain frontend part of the product Develop API and backend for a high-load product with numerous endpoints Write unit and integration tests for both frontend and backend Refactor code and improve application performance Requirements: 3+ years of software development experience Excellent knowledge of Node.js, JavaScript, TypeScript, ReactJS Experience in designing and developing REST APIs Proficiency in working with databases (DynamoDB, MySQL) Experience writing tests Good knowledge of AWS (Lambda, EC2) Readiness to support legacy PHP code We offer: Fully remote work, giving you the flexibility you need in the modern world A multitude of interesting challenges and opportunities Stable income and flexible working hours, opportunities for promotion Friendly and professional peers, eager to help and help you grow Join Action1 and be a driving force behind our success!

Location: Canada Workplace: remote ABOUT YOU  You are a strategic and tactical Director of Engineering, Data, with deep expertise in data platforms and machine learning systems. You will lead a distributed team of data engineers, ML engineers, and data scientists delivering the recommendation engines, personalization systems, and data infrastructure that power products used by millions of players worldwide. The ideal candidate is a collaborative leader with strong technical foundations and a proven track record of shipping end-to-end ML systems into production. You hold the bar high for what gets shipped: reliable pipelines, reproducible models, thoughtful feature engineering, and observability built in from the start. You know how to connect model performance to real business outcomes, and you bring a low-ego, people-first approach to cross-functional work. If you're passionate about building the data and ML foundation that drives a growing global gaming platform, and want to shape how millions of players discover and engage with games, we'd love to hear from you. ABOUT US Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game. For more information, visit xsolla.com. Responsibilities: Lead and grow a high-performing, distributed team of data scientists, ML engineers, and data platform engineers. Define and execute the data science and ad tech roadmap, advancing initiatives in user modeling, campaign optimization, targeting, and personalization. Architect and manage ML pipelines and experimentation frameworks, including feature engineering, training pipelines, model serving, A/B testing, and causal inference systems. Oversee real-time pipelines for ad events (e.g., impressions, clicks, conversions), enabling responsive attribution and performance optimization. Collaborate with Product, Growth, and Marketing to develop audience scoring, LTV/churn models, and incrementality testing for media measurement and bidding efficiency. Ensure scalable, privacy-compliant data infrastructure aligned with GDPR, CCPA, and ATT, including support for SKAdNetwork, CMPs, and identity frameworks. Foster engineering excellence with a focus on reproducibility, model evaluation, observability, and model lifecycle management. Drive a strong feedback loop between experimentation and business outcomes, translating data science insights into product and go-to-market wins. Mentor engineers and scientists on career development, technical depth, and cross-functional leadership. Qualifications & Skills: 5+ years of experience in software/data engineering or applied data science, with 3+ years managing technical teams in ML, analytics, or ad tech domains. Deep understanding of machine learning and statistical modeling, including regression, classification, causal inference, uplift modeling, and forecasting. Hands-on experience with ML/data platforms such as Snowflake, BigQuery, Spark, Airflow, dbt, MLFlow, and feature stores. Proven experience in architecting and deploying end-to-end ML systems into production (batch and real-time). Knowledge of ad tech ecosystems, including campaign hierarchies, attribution models (multi-touch, view-through), and creative performance tracking. Familiarity with audience management, segmentation, and personalization frameworks in programmatic or CRM marketing. Experience with privacy-preserving measurement, including support for SKAdNetwork, GAID/IDFA deprecation, and consent systems. Excellent leadership, communication, and stakeholder management skills across technical and non-technical audiences. Bachelor’s or Master’s in Computer Science, Engineering, Statistics, or a related field. PhD is a plus. Benefits: We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees and their families through a comprehensive Benefits Program. This includes medical, dental, and vision, PTO, and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play. Equal Employment Opportunity Statement: Xsolla is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity, or any other characteristic protected by law. We consider qualified applicants with criminal histories in accordance with the Fair Chance Act. Criminal History Consideration: For the Engineering Manager, Data, we will conduct a background check that may include the following: Criminal history check Employment verification Education verification Relevance to Job Responsibilities: The background check is relevant to this position because of the following role responsibilities: Working with vulnerable populations Accessing confidential company data Ensuring compliance with regulatory requirements Rights Under the Fair Chance Act: Applicants are encouraged to inquire about their rights under the Fair Chance Act. If you have questions regarding our hiring practices, please contact careers@xsolla.com. By submitting the following job application form, you consent to Xsolla processing your data for career-related inquiries and potential employment opportunities. We process your data in accordance with thisXsolla Privacy Notice for Job Applicants. Please direct any inquiries regarding your data privacy to careers@xsolla.com.

Location: Riyadh, Saudi Arabia In the role of Infrastructure Lead at Müller's Solutions, the Infrastructure Support Lead Analyst will be responsible for the design, maintenance, support, and scalability of the SAP infrastructure. This position involves guiding, coaching, and facilitating a team of specialists while contributing to the infrastructure support services. The individual will be part of a team of infrastructure engineers who possess outstanding technical expertise across various domain competencies. Key Responsibilities: • Provide daily leadership to the Infrastructure Services team. • Design, construct, and maintain the server and network infrastructure. • Offer operational support for the SAP architectures. • Collaborate with engineers and developers to establish provisioning, configuration, protocol support, and security for the infrastructure. • Ensure infrastructure stability as new products and services are launched. • Develop, mentor, and train staff; continuously seek to enhance processes and procedures with the objective of delivering exceptional service to customers. • Create, document, implement, and sustain processes and procedures for daily operations and the integration of new services. • Foster a robust culture dedicated to service quality through the effective execution of repeatable, well-structured processes. • Monitor the status of alerts, tickets, and processes to guarantee timely completion of tasks. • Communicate changes in policy and procedures. • Provide recommendations for modifications and improvements, and convey these to senior management. • Achieve and maintain service levels as established by management. • Offer technological guidance to ensure that project services are highly available, efficient, and operate with acceptable performance levels. • Address business requirements through technology by assessing various technological options and vendor products. • Report trends in incident/problem management identified through analysis of historical outages, utilizing these trends to pinpoint and implement changes that may prevent future issues. • Collaborate with service providers to identify processes/tools that enhance the end-user experience of the service. • Manage significant outages through standard ITIL processes until resolution. • Promote knowledge sharing through presentations and similar activities among team members. • Possess a broad understanding of infrastructure technologies coupled with subject matter expertise (SME) in several technologies within an infrastructure environment, including operating systems, storage, virtualization, networks, heterogeneous computing devices, and information security. • Exhibit proficiency as a systems administrator for specific technologies and provide escalated support. • Analyze, deconstruct, and re-engineer existing solutions with a focus on enhancing efficiency and improving performance. Requirements EDUCATION: Bachelor's Degree in Computer Science, Information Management, or a related technical/IT field. Certification in CCNP or CCNA. ITIL V3 Certification is advantageous. Proficiency in both Arabic and English languages. RELEVANT EXPERIENCE: 5 to 7 years of demonstrable technical experience in managing large infrastructure setups. A minimum of 3 years of professional experience in infrastructure and technical operations. SKILLS REQUIREMENTS: Comprehensive understanding of LAN/WAN protocols and architectures. Capable of communicating effectively at all organizational levels. Ability to maintain clear reasoning during high-severity, high-impact outages. Strong collaborator, working well with others to resolve issues and incorporating diverse insights. Robust analytical skills. Preferred Qualifications: Master's degree in a related field. Relevant certifications (e.g., ITIL, CISSP, CCNA) are highly beneficial. Experience in cybersecurity practices aimed at protecting infrastructure from unauthorized access and vulnerabilities. Familiarity with DevOps practices and tools to enhance collaboration between development and operations teams. Benefits Why Join Us: Opportunity to work with a talented and passionate team. Competitive salary and benefits package. Exciting projects and innovative work environment.

Location: Munich Metropolitan Region, Germany Our partner, a well-known German media company, is looking for a Senior IT Infrastructure Engineer (m/f/d), to conduct audits on it's expanding portfolio. This is a full-time hybrid position in Munich metropolitan area, Germany. About the team: You will be part of a team dedicated to improving IT processes and ensuring the success of audits across business units and functional areas. The team works closely with various departments, including domestic and international subsidiaries, to enhance IT security, control systems, and process efficiency. Your responsibilities: Infrastructure Security Assessment : Evaluate network components, servers, storage, and cloud environments to ensure they meet security best practices and compliance requirements. Compliance Audits : Perform audits across IT infrastructure, ensuring systems adhere to regulatory standards and internal policies. Risk Assessment : Identify and assess vulnerabilities in IT infrastructure, providing actionable recommendations for remediation. Performance Monitoring : Oversee infrastructure performance, including networks, servers, and cloud systems, addressing inefficiencies and recommending improvements. Incident Investigation : Analyze infrastructure logs and past incidents to determine root causes and implement preventive measures. Reporting and Documentation : Produce detailed reports on findings, risks, and recommended improvements for IT infrastructure. Collaboration : Partner with IT teams to address audit findings and ensure secure configurations across all systems. Required qualifications: Strong knowledge of IT infrastructure architecture , including networks, servers, storage, and cloud systems . Proven experience in infrastructure security . Proficient in analyzing infrastructure logs and security incidents. Strong analytical and problem-solving skills. Excellent communication skills for presenting findings. Preferred qualifications: Experience in IT infrastructure auditing with a focus on security assessments. Knowledge of log management tools for security event analysis. Relevant certifications such as CISA (Certified Information Systems Auditor), CISSP (Certified Information Systems Security Professional), or CCNA Security. Background in risk assessment and vulnerability analysis for IT infrastructure . If you feel your profile matches this job description, send us your CV!

Location: Remote Workplace: remote At Offchain, we aren’t just building products: we’re leading a movement.    As pioneers in blockchain scalability and security, we're at the forefront of transforming how the world interacts with decentralized applications. We're laying the foundation that will define the next generation of digital commerce, governance, and human interaction. This involves tackling real-world challenges that come with scaling blockchain technology, without compromising on its core principles: decentralization, security and transparency.    At the center of this vision is our people. Our team is made up of thinkers and doers that embrace new challenges and seek solutions that push existing boundaries. If you’re energized by solving unprecedented problems, and believe in the role that decentralized systems will play in creating a more equitable digital future, then we want to hear from you.    Why Offchain?   Offchain is setting the pace for the entire Ethereum ecosystem. We built the Arbitrum stack that powers Arbitrum One, the most widely adopted Ethereum scaling solution that exists today.   Arbitrum’s ecosystem is undergoing tremendous growth with hundreds of projects and dApps on Arbitrum One today. Over 100 different teams have used Offchain technology to build their own Arbitrum chains. Major players in the space, Robinhood, BlackRock, Ethena Labs, Securitize, Aave, and Apechain are all using the Arbitrum stack.   Arbitrum’s thriving ecosystem wouldn’t exist without our advanced technology stack. Arbitrum, Prysm, ZeroDev. These aren’t just product names. These are tools that are actively reshaping what's possible on Ethereum and advancing its core infrastructure.   To top it all off? We’re backed by $124 million in funding. We’ve demonstrated consistent execution with billions in secured value, thousands of supported projects, and infrastructure processing millions of transactions seamlessly. The Role As a Senior Security Engineer at Offchain, you will emulate the real-world tactics, techniques, and procedures of sophisticated adversaries to surface vulnerabilities across our infrastructure and ecosystem tools. You’ll run hands-on penetration tests, lead red team exercises, and work side-by-side with blue team partners to test, refine, and strengthen detection and response capabilities. Your efforts will directly shape how Offchain designs, launches, protects, and achieves compliance for the infrastructure that powers millions of users and applications - including key standards such as SOC 2. What you'll do: Conduct comprehensive code audits across a variety of internal applications and infrastructure. Conduct comprehensive penetration tests across cloud environments (AWS), infrastructure, and backend applications. Collaborate with detection engineering, threat intelligence, and incident response groups to review security controls, uncover coverage gaps, and enhance overall detection quality. Build, maintain, and evolve custom offensive tools, scripts, and automation frameworks to increase assessment speed. Offer offensive security expertise during incident investigations, including log analysis and root cause reviews. Keep up with evolving threats, vulnerabilities, and attack methods; share research internally and engage with the wider security community. Own offensive security projects from start to finish, mentor junior team members, and cultivate a culture of ongoing learning and knowledge exchange. What you'll need: 5+ years of experience in offensive security, penetration testing, red teaming, or a closely related field. Extensive experience with conducting code audits to identify and remediate security issues. Experience with binary exploitation. Mastery of AWS & specific attack techniques and configuration weaknesses. Strong understanding of adversary tactics and frameworks like MITRE ATT&CK. In-depth knowledge of web application security, including OWASP Top 10, ASVS, and common vulnerability categories. Proficiency using offensive security tools such as Burp Suite, nuclei and similar frameworks. Strong programming skills in Python, Go, or similar languages, with proven experience developing tools or automation. Excellent written and verbal communication skills, with the ability to present complex technical details as clear, risk-focused recommendations. A natural ability to think like an attacker - creative, determined, and skilled at assessing risk across complex systems. Nice-to-haves Web3 / blockchain security exposure: smart contract auditing, bug bounty hunting (e.g., Immunefi, Code4rena), or DeFi protocol review. Familiarity with Ethereum L1 / L2 node architecture and security risks. Experience in blockchain infrastructure penetration testing. Perks: Remote-first global workforce + NY office Professional reimbursement program (facilitates industry conference attendance, certifications, and more) Medical, dental & vision coverage (US + some other countries) 401k retirement plan + company match (US only) Wellness stipend Home office set up / ergonomic equipment program

Location: San Francisco, CA Workplace: OnSite ABOUT US Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia. We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do. Our co-founders are Bret Taylor https://www.linkedin.com/in/brettaylor/ and Clay Bavor https://www.linkedin.com/in/claybavor/. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace. SECURITY ENGINEER Security Engineering builds the foundations that let Sierra deliver powerful AI agents while protecting customer data and trust. We partner across product and platform to make security, privacy, and safety core product capabilities and secure defaults. WHAT YOU’LL DO Our work spans several security domains. You’ll go deep where your strengths and interests are strongest, with opportunities to explore new areas alongside the team. Build the Foundations of Trust. Design and ship systems and controls that make Sierra secure by default — spanning product security, infrastructure security, enterprise security, identity, and detection and response. You’ll work across all layers of our platform to identify risk, strengthen architectures, and build durable defenses. Own Cross-Cutting Systems. Partner with product, platform, and infrastructure team to threat model designs, review code and architectures, and implement and evolve Sierra’s security primitives. You’ll make pragmatic design trade-offs between usability, performance, reliability, and security. Find and Reduce Real Risk. Identify vulnerabilities, investigate suspicious behavior, and improve detections and response workflows across applications, cloud infrastructure, identity, endpoints, and internal systems. Turn what you learn into systemic fixes and controls that prevent entire classes of issues. Automate and Scale Security Workflows. Create developer-friendly tooling to reduce risk and friction — whether through automating security checks in CI/CD, building secure paved paths, improving vulnerability discovery, or instrumenting high-signal detection and response.     WHAT YOU’LL BRING Deep Security Expertise. Strong security fundamentals and depth in at least one domain, such as product security, platform or cloud security, enterprise security, identity, detection and response, or offensive security. You can apply that expertise across unfamiliar systems and emerging threats. Product and Platform Mindset. You care about building secure, scalable systems that enable, not block, innovation. You work closely with teams across Sierra to make trade-offs clear and help them move quickly without sacrificing trust. Software Engineering and Systems Thinking. You’re comfortable reading and writing code, understanding how production systems fit together, and building pragmatic software solutions to security problems. You can reason about system design and contribute to APIs, services, and security controls, with an eye toward reliability and maintainability. Curiosity and Ownership. You take ambiguous, cross-cutting problems from first principles to production and go deep when needed: threat modeling a distributed system, tracing an authorization decision across services, or following an investigation from weak signal to root cause. You define the problem, align partners, build the solution, and own it in production.     EVEN BETTER IF… - You’ve worked across more than one of product security, infrastructure security, enterprise security, detection and response, or offensive security. - You’ve built security frameworks, platforms, or solutions that engineers and responders rely on to prevent, detect, investigate, and remediate security issues at scale. - You have exposure to AI systems or care about designing secure-by-default LLM applications and agentic systems. - You think like an attacker — you naturally ask “what could go wrong?” when reviewing designs or investigating systems. You’ve found or fixed real security issues in production. - You thrive in 0→1 environments, where foundational systems have to balance speed, reliability, and trust. OUR VALUES - Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work. - Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it. - Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve. - Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time. - Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements. WHAT WE OFFER We want our benefits to reflect our values and offer the following to full-time employees: - Flexible (unlimited) paid time off - Medical, dental, and vision benefits for you and your family - Life insurance and disability benefits - Retirement plan dependent on country of employment - Parental leave - Fertility and family building benefits through Carrot - Lunch, as well as delicious snacks and coffee to keep you energized  - Discretionary benefit stipend giving people the ability to spend where it matters most - Free alphorn lessons These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies. BE YOU, WITH US We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply even if your experience doesn't precisely match the job description. We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.

Location: Remote Workplace: remote At Offchain, we aren’t just building products: we’re leading a movement.    As pioneers in blockchain scalability and security, we're at the forefront of transforming how the world interacts with decentralized applications. We're laying the foundation that will define the next generation of digital commerce, governance, and human interaction. This involves tackling real-world challenges that come with scaling blockchain technology, without compromising on its core principles: decentralization, security and transparency.    At the center of this vision is our people. Our team is made up of thinkers and doers that embrace new challenges and seek solutions that push existing boundaries. If you’re energized by solving unprecedented problems, and believe in the role that decentralized systems will play in creating a more equitable digital future, then we want to hear from you.    Why Offchain?   Offchain is setting the pace for the entire Ethereum ecosystem. We built the Arbitrum stack that powers Arbitrum One, the most widely adopted Ethereum scaling solution that exists today.   Arbitrum’s ecosystem is undergoing tremendous growth with hundreds of projects and dApps on Arbitrum One today. Over 100 different teams have used Offchain technology to build their own Arbitrum chains. Major players in the space, Robinhood, BlackRock, Ethena Labs, Securitize, Aave, and Apechain are all using the Arbitrum stack.   Arbitrum’s thriving ecosystem wouldn’t exist without our advanced technology stack. Arbitrum, Prysm, ZeroDev. These aren’t just product names. These are tools that are actively reshaping what's possible on Ethereum and advancing its core infrastructure.   To top it all off? We’re backed by $124 million in funding. We’ve demonstrated consistent execution with billions in secured value, thousands of supported projects, and infrastructure processing millions of transactions seamlessly. The Role: As part of the Nitro Backend team at Offchain, you will work on the core infrastructure powering Arbitrum, the leading Ethereum scaling solution. In this role, you’ll tackle complex distributed systems challenges, optimize performance, and contribute to the security and scalability of Arbitrum. You’ll collaborate closely with our research, product, and blockchain engineering teams, working at the cutting edge of blockchain technology alongside world-class engineers, including many industry leaders. Who you are: Possess extensive production experience with a programming language that supports concurrency (e.g. Go, C++, or Rust) Possess a strong sense of ownership in your work which drives you to find new and innovative ways to solve complex problems through rigorous experimentation Always up to speed on the latest technologies Possess an open, transparent and direct communication style and have experience working in tight collaboration with your teammates Always open to feedback, new ideas and opportunities for self-improvement You look for ways to help out beyond your immediate day-to-day work What you've done: Made significant contributions to the products you’ve worked on in your career Maintained a security focused mindset, always keeping an eye out for potential threats and vulnerabilities in your code Nice to have: Familiarity with WebAssembly, particularly writing high performant and high security code in production environments Experience working with compilers, architecting systems and developing SDKs Perks: Remote-first global workforce + NY office Professional reimbursement program (facilitates industry conference attendance, certifications, and more) Medical, dental & vision coverage (US + some other countries) 401k retirement plan + company match (US only) Wellness stipend Home office set up / ergonomic equipment program Attention Offchain Job Seekers:   This role cannot be performed in California, or Colorado.   Please be advised that there has been a rise in fraudulent recruiter activities, particularly within the Web3 space. If you would like to confirm whether someone is an Offchain employee or the legitimacy of an offer you received, please email jobs@offchainlabs.com   At Offchain, we are committed to building a welcoming and supportive workplace for all employees, regardless of their background or identity. We strive to create an environment where everyone feels valued and has an equal opportunity to succeed and thrive. We encourage candidates from all walks of life to apply and join our team.

Location: United Kingdom About Your Tasks Infrastructure Management Oversee the design, deployment, and maintenance of IT infrastructure, including servers, networks, storage systems, and other hardware and software components. Develop and implement strategies for infrastructure capacity planning, performance optimization, and disaster recovery. Ensure high availability and reliability of IT services through proactive monitoring and maintenance practices. Team Leadership Lead and manage a team of IT professionals, including network engineers, system administrators, and support staff. Foster a collaborative and innovative team environment, encouraging professional development and continuous learning. Set performance goals, conduct regular performance evaluations, and provide coaching and mentorship to team members. Security and Compliance Implement and enforce security policies and procedures to protect the organization's IT infrastructure from threats and vulnerabilities. Ensure compliance with industry regulations, standards, and best practices, such as GDPR, HIPAA, and ISO/IEC 27001. Conduct regular security assessments, audits, and penetration testing to identify and mitigate risks. Vendor and Stakeholder Management Manage relationships with external vendors and service providers, negotiating contracts and ensuring service level agreements (SLAs) are met. Collaborate with internal stakeholders, including executives, department heads, and project managers, to align IT infrastructure initiatives with business objectives. Communicate infrastructure status, issues, and recommendations to senior management in a clear and concise manner. Project Management Lead infrastructure projects from initiation to completion, ensuring they are delivered on time, within budget, and meet quality standards. Develop and manage project plans, budgets, and timelines, coordinating resources and stakeholders as needed. Monitor project progress, identify risks and issues, and implement corrective actions to keep projects on track. Innovation and Improvement Stay current with emerging technologies and industry trends, evaluating their potential impact on the organization's IT infrastructure. Identify opportunities for infrastructure improvement and innovation, driving initiatives to enhance performance, scalability, and efficiency. Foster a culture of continuous improvement, encouraging the adoption of best practices and new technologies. Requirements Education and Experience Bachelor's degree in Computer Science, Information Technology, or a related field. A master's degree or relevant certifications (e.g., Cisco, Microsoft) is a plus. At least 5-7 years of experience in IT infrastructure management, with a proven track record of leading and managing infrastructure teams. Extensive knowledge of IT infrastructure components, including networking, servers, storage, virtualization, and cloud technologies. Experience of technologies such as Veeam, SQL, Office 365, VMware would be advantageous. Technical Skills Proficiency in network and system administration, including experience with routers, switches, firewalls, and load balancers. Strong understanding of virtualization technologies (e.g., VMware, Hyper-V) and cloud computing platforms (e.g., AWS, Azure, Google Cloud). Familiarity with IT service management frameworks (e.g., ITIL) and project management methodologies (e.g., Agile, Scrum). Soft Skills Excellent leadership and team management skills, with the ability to inspire and motivate team members. Strong analytical and problem-solving abilities, with a keen attention to detail. Effective communication and interpersonal skills, with the ability to collaborate with stakeholders at all levels of the organization. Demonstrated ability to manage multiple projects and priorities in a fast-paced environment.

Location: New York, New York / Remote Workplace: remote About the Company Founded in 2018 by professors of Yale University and Columbia University, CertiK is a pioneer in blockchain security, utilizing best-in-class AI technology to secure and monitor blockchain protocols and smart contracts. CertiK’s mission is to secure the cyber world. Starting with blockchain, CertiK applies cutting-edge innovations from academia into enterprise, enabling mission-critical applications to be built with security and correctness. CertiK is one of the fastest growing and most trusted companies in blockchain security and has become a true market leader. Our clients include leading projects such as Aave, Polygon, Binance Smart Chain, Yearn, and Chiliz. Our investors include top VCs like Tiger Global, Coatue Management, Shunwei Capital and Hillhouse Capital as well as industry leaders like Coinbase Ventures and Binance. About the Position The primary focus of this role is to pioneer the development of an intelligent AI agent powered by large language models (LLMs) to enhance our security audit tools in the blockchain space. As a Blockchain Security Expert intern, you will work closely with our blockchain security team to bridge cutting-edge academic research with practical applications. Your efforts will be dedicated to designing, fine-tuning, and integrating LLM-driven AI agents that automatically analyze smart contracts and identify potential vulnerabilities. In this role, you'll be immersed in research and experimentation, exploring new methods to improve threat detection and risk assessment within our security audit platform, thereby directly contributing to more secure blockchain infrastructures. Responsibilities Collaborate with our blockchain security team to design and implement a large language model (LLM)-based AI agent for security audit tools. Experiment with novel AI techniques to enhance threat detection and risk assessment in blockchain environments. Assist in transforming cutting-edge research on AI agents into practical, scalable security auditing solutions. Continuously research emerging trends in LLMs, AI agent architectures, and cybersecurity, and proactively propose improvements. Requirements Currently pursuing or recently completed a PhD in Artificial Intelligence, Computer Science, or a related field, with a strong emphasis on machine learning, natural language processing, and/or cybersecurity. Deep understanding of LLM architectures (e.g., transformers) and hands-on experience in training or fine-tuning such models. Proficiency in Python and experience with deep learning frameworks (e.g., PyTorch or TensorFlow). Basic familiarity with blockchain technology and smart contract development is a plus. Excellent analytical skills, problem-solving capabilities, and the ability to thrive in a fast-paced, innovative startup environment. Strong written and verbal communication skills in English. Bonus Points Prior research or project experience in developing AI agents or automated security analysis tools. Exposure to security audit methodologies and vulnerability assessment, particularly in blockchain or smart contract environments. Familiarity with blockchain programming languages (e.g., Solidity) and platforms (e.g., Ethereum). Publications or contributions to leading conferences/journals in AI, NLP, or cybersecurity. Demonstrated ability to translate research insights into effective, production-ready tools. Target monthly salary for this role performed is $6,000 - $8,000 if based in the US. The exact compensation at which this job is filled will be determined by the skills and experience of qualified candidates. CertiK accepts applications for this position on an ongoing basis.   CertiK is proud to offer medical, vision, and dental insurance, 401(k) plan with company matching, life and accidental death and dismemberment insurance, HSA (with high deductible plan), FSA, and other benefits to all full-time employees, along with flexible paid time off and holidays. CertiK also offers a variable commission program for business development sales roles.   In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire.   CertiK is proud to be an equal opportunity employer. We will not discriminate against any applicant or employee on the basis of age, race, color, creed, religion, sex, sexual orientation, gender, gender identity or expression, medical condition, national origin, ancestry, citizenship, marital status or civil partnership/union status, physical or mental disability, pregnancy, childbirth, genetic information, military and veteran status, or any other basis prohibited by applicable federal, state or local law.   CertiK will consider for employment qualified applicants with criminal histories in a manner consistent with local and federal requirements. https://www.eeoc.gov/sites/default/files/migrated_files/employers/poster_screen_reader_optimized.pdf   All CertiK employees are expected to actively support diversity on their teams, and in the Company.