Location: Riyadh, KSA
Workplace: onsite
Tabby
creates financial freedom in the way people shop, earn and save by reshaping their relationship with money. Over 25 million users choose Tabby to stay in control of their spending and make the most out of their money.
The company’s flagship offering allows shoppers to split their payments online and in-store with no interest or fees. Over 70,000 global brands and small businesses, including Amazon, Noon, IKEA, and SHEIN use Tabby to accelerate growth and gain loyal customers by offering easy and flexible payments online and in stores.
Tabby generates over $18 billion in annual transaction volume for its partner brands and is the highest-rated, most-reviewed, largest, and fastest-growing FinTech in the GCC region.
Tabby launched in 2019 and has since raised +$1 billion in equity and debt funding from global and regional investors, and is now valued at $6,5 billion.
As
Information Security Engineer
, you’ll play a key part in monitoring and defending our infrastructure, applications, and cloud environments from cyber threats.
You’ll lead incident response efforts, develop and tune detection rules, investigate security events, and collaborate with cross-functional teams to strengthen our security posture.
Key Responsibilities
Security Monitoring & Detection
Monitor and analyze logs and alerts from a wide range of sources including firewalls, intrusion detection/prevention systems (IDS/IPS), endpoints, servers, and cloud platforms.
Perform correlation of events from multiple sources to identify advanced threats and unusual patterns of behavior.
Fine-tune alert thresholds and detection logic to reduce false positives and improve signal-to-noise ratio.
Maintain dashboards and reporting to provide real-time visibility into security posture.
Incident Response & Investigation
Serve as a frontline responder for security incidents, managing incidents through their lifecycle – detection, containment, eradication, recovery, and lessons learned.
Coordinate with internal stakeholders and external vendors during high-severity incidents or data breaches.
Perform root cause analysis and forensic investigations using endpoint and network-based artifacts.
Maintain detailed incident documentation and contribute to post-mortem analysis and reports.
Threat Intelligence & Detection Rule Development
Research emerging threats and trends.
Contribute to the creation and tuning of detection rules, threat-hunting queries, and use cases across multiple platforms including cloud environments.
Maintaining CTI Platform along with the integration of the CTI feeds with the security controls to have active CTI driven detections.
Collaboration and Communication
Communicate effectively with cross-functional teams including IT, DevOps, Risk, and Compliance during incidents and investigations.
Provide concise and clear updates during incident handling to stakeholders and management.
Mentor junior analysts and assist in training efforts within the SOC team.
Skills, Knowledge and Expertise
3–4 years of experience in a SOC or cybersecurity operations role, ideally in a fast-paced fintech or enterprise environment.
Strong knowledge of security best practices, including incident handling, alert triage, log analysis, and threat modeling.
Understanding of online technologies, REST APIs, microservices, and modern application architectures.
Experience working in a culturally diverse and collaborative environment.
Familiarity with DLP, AV, and anti-malware systems from an operational monitoring perspective.
Experience with phishing detection, user behavior analytics, and security awareness campaigns.
Security certifications such as Security+, CySA+, eCIR, eCTHPv2, GCIA, or GMON (preferred but not required).
Strong communication skills, especially for coordinating incident response and writing clear incident reports.
Experience with
SIEM platforms
,
SOAR tools
,
EDR/XDR
, and
Threat Intelligence platforms
.
Familiarity with cloud environments and cloud-native logging and monitoring tools.
Scripting experience (e.g.,
Python
) to automate tasks and improve SOC efficiency.
Location: Chisinau, Moldova
We are looking for a technically strong and operationally focused professional to join the Billing Support team. The role combines production support, incident management, systems analysis, and operational coordination for Billing platforms and related services.
The ideal candidate should have solid technical troubleshooting capabilities, understand IT service management principles (ITIL), and demonstrate initiative, ownership, and strong operational discipline in a dynamic production environment.
Main Duties and Responsibilities:
* Ensure daily operational support for Billing Systems and related applications;
* Monitor, maintain, and troubleshoot production services and integrations;
* Investigate incidents, perform root cause analysis, and coordinate issue resolution;
* Manage and prioritize incidents according to SLA and operational impact;
* Support deployment, configuration, and integration of new services and applications;
* Collaborate with technical teams, vendors, and business stakeholders to ensure service continuity;
* Participate in change management and production release activities;
* Create and maintain operational procedures, knowledge base articles, and technical documentation;
* Contribute to process improvement initiatives and operational optimization;
* Provide operational support and technical assistance within the team environment.
Competence and Education:
* University degree in Computer Science, Information Technologies, or related field;
* Good understanding of IT infrastructure, applications, and production support processes;
* Understanding of ITIL principles, especially Incident and Problem Management;
* English – technical and communication level.
Qualifications:
* Minimum 1 years of experience in IT Operations, Technical Support, Billing Support, or similar environment;
* Experience working with production systems and critical business applications;
* Good knowledge of SQL and databases;
* Experience with Linux/UNIX environments and scripting is considered an advantage;
* Experience with PL/SQL, XML, REST/SOAP APIs, Java, or shell scripting would be a plus;
* Familiarity with monitoring, ticketing, and incident management tools;
* Experience in telecom or billing systems environment represents an advantage.
Personal Qualities:
* Strong analytical and problem-solving skills;
* Technical mindset with operational ownership attitude;
* Ability to work under pressure and manage critical incidents;
* Good organizational and prioritization skills;
* Proactive and responsible approach;
* Strong communication and collaboration skills;
* Customer and service-oriented mindset;
* Fast learner, adaptable, and results-driven;
* Good communication skills in Romanian, Russian, and English.
Location: Chisinau, Moldova
We are seeking a Mid-Level Mobile QA Engineer to ensure the quality, reliability, and usability of iOS and Android mobile applications, including FinTech functionalities, through manual testing and an increasing focus on test automation.
The role involves planning and executing functional, regression, integration, usability, compatibility, and exploratory testing across mobile devices, operating-system versions, backend services, and third-party integrations. The QA Engineer will also design, develop, and maintain automated tests that provide stable and meaningful coverage of critical user journeys.
The Mobile QA Engineer will analyze business and technical requirements, identify risks and acceptance criteria, prepare test scenarios and test data, and communicate defects clearly to developers, business analysts, product owners, and other stakeholders. The role includes planning and tracking quality activities in Jira within an Agile delivery framework.
Additionally, the QA Engineer is expected to contribute to release readiness, continuous quality improvement, and shift-left testing practices. The candidate demonstrates solid mobile testing experience, an automation-oriented mindset, attention to detail, and the ability to investigate issues across the mobile application, APIs, backend services, and device environment.
Basic Requirements
• Ability to understand mobile application architecture, user journeys, business rules, and integrations with backend services.
• Capability to plan and execute manual testing independently and to develop or maintain automated tests with limited guidance.
• Strong discipline in test design, defect reporting, test evidence, traceability, and quality documentation.
• Ability to reproduce, isolate, and investigate defects using logs, API responses, device information, and test data.
• Willingness to maintain reusable test cases, automation code, test data, and release-quality documentation.
• Familiarity with Agile methodologies (Scrum/Kanban) and cross-functional teamwork.
• Understanding of mobile usability, accessibility, performance, network conditions, and device/OS fragmentation.
Key Responsibilities
Mobile QA Testing Responsibilities
• Review requirements, user stories, designs, and acceptance criteria to identify ambiguities, risks, dependencies, and test conditions early in the delivery lifecycle.
• Design, maintain, and execute test plans, checklists, test cases, exploratory charters, and regression suites for iOS and Android applications.
• Perform functional, integration, end-to-end, regression, smoke, sanity, usability, compatibility, and localization testing.
• Validate mobile application behavior across supported devices, screen sizes, operating-system versions, orientations, permissions, and installation or upgrade paths.
• Test application behavior under variable network conditions, interrupted sessions, background/foreground transitions, notifications, deep links, and offline or low-connectivity scenarios.
• Validate REST APIs, backend integrations, authentication flows, and data consistency using tools such as Postman, Swagger/OpenAPI, or comparable solutions.
• Design, develop, execute, and maintain reliable automated tests for critical mobile user journeys using Appium or comparable mobile automation frameworks.
• Improve automation coverage, test stability, execution time, reporting, and maintainability while investigating flaky tests and failed runs.
• Prepare and manage test data and test environments, including mocks or stubs where appropriate.
• Log defects with clear reproduction steps, expected and actual results, severity, evidence, environment details, and relevant diagnostic information.
• Perform defect verification, regression impact analysis, root-cause collaboration, and quality sign-off recommendations for releases.
• Collaborate closely with mobile developers, backend engineers, business analysts, UX/UI designers, DevOps engineers, product owners, and business stakeholders.
Quality, Security & Release Responsibilities
• Apply risk-based testing and contribute to quality criteria, test strategy, release gates, and Definition of Done.
• Validate secure authentication, authorization, session handling, permissions, sensitive-data exposure, and other relevant mobile security controls.
• Integrate automated tests into CI/CD pipelines and review execution results to provide timely feedback on build quality.
• Support release validation for development, test, staging, and production environments, including app-store candidate builds when required.
• Monitor production quality indicators, logs, crash reports, analytics, and customer-reported issues to identify regression risks and improvement opportunities.
• Track and communicate testing progress, coverage, defect trends, residual risks, and release-readiness recommendations.
Required Skills & Qualifications
• 3+ years of hands-on software testing experience, including practical testing of native or cross-platform iOS and Android applications.
• Strong knowledge of software testing principles, test design techniques, defect lifecycle, and risk-based testing.
• Demonstrated experience in manual functional, regression, integration, exploratory, and compatibility testing.
• Practical experience developing or maintaining mobile UI automation using Appium or a comparable framework.
• Working knowledge of at least one programming or scripting language used for test automation, such as Java, C#, JavaScript/TypeScript, Python, or Kotlin.
• Experience testing REST APIs and analyzing JSON data, HTTP requests, responses, status codes, and authentication mechanisms.
• Experience with Git-based version control and familiarity with CI/CD workflows.
• Experience using Jira or a comparable work-management and defect-tracking system.
• Strong analytical, troubleshooting, and problem-solving skills, with consistent attention to detail.
• Good communication skills and the ability to collaborate across technical and non-technical teams.
Preferred Qualifications
• Experience with native automation frameworks such as XCTest/XCUITest or Espresso/UI Automator.
• Familiarity with cross-platform technologies such as Flutter, React Native, or .NET MAUI.
• Experience with device farms and cloud testing platforms such as BrowserStack, Sauce Labs, Firebase Test Lab, or comparable services.
• Exposure to performance, accessibility, security, or resilience testing for mobile applications.
• Familiarity with log analysis, crash-reporting, monitoring, and analytics tools such as Firebase Crashlytics or comparable solutions.
• Experience validating push notifications, deep links, biometrics, payments, or other mobile-specific integrations.
• Familiarity with ISTQB practices or relevant testing certifications is considered an advantage.
Additional Information
• Work environment: Agile, collaborative, cross-functional, with a strong focus on customer experience, product quality, reliability, and continuous improvement.
• Location: Office-based or hybrid, depending on project and team needs.
• Team structure: Cross-functional mobile product team with direct collaboration across engineering, product, design, business analysis, and operations.
Summary
This role contributes directly to delivering reliable, secure, and user-friendly mobile applications that support the company’s digital customer journeys. The Middle Mobile QA Engineer will combine disciplined manual testing with sustainable automation, provide clear visibility into product quality and release risk, and help embed quality throughout the mobile development lifecycle.
Location: Chisinau, Moldova
Responsible for the operation, maintenance, troubleshooting and optimization of Mobile Core PS and IP infrastructure, including legacy EPC and next-generation virtualized and cloud-based Core platforms.
The role contributes to the introduction, integration and evolution of NFVI, 5G NSA/SA and 5G Core technologies, as well as to the interworking of PS, CS and IMS domains, ensuring the reliable operation of end-to-end mobile services.
Key Responsibilities:
1. Core PS & IP Network Operations
Operate, monitor and maintain Core PS network elements and related IP infrastructure, including virtualized/NFVI platforms.
Monitor network availability, performance, capacity and key operational KPIs.
Identify potential performance and capacity issues and contribute to network optimization.
2. Troubleshooting & Network Analysis
Troubleshoot issues related to mobile data, APN, session establishment, mobility, authentication, DNS and IP connectivity.
Analyze GTP, Diameter and IP traffic using packet captures, logs and network monitoring tools.
Investigate and resolve IP connectivity and routing issues, including BGP, VLAN, VRF, NAT and ACL related problems.
Perform root-cause analysis and provide effective solutions for service-impacting incidents.
3. 5G, NFVI & Network Transformation
Support the introduction, integration and stabilization of 5G NSA/SA and next-generation Core technologies.
Participate in NFVI deployments, migrations, software upgrades and network modernization projects.
Support the evolution towards virtualized and cloud-native Core environments.
Contribute to testing, integration and troubleshooting during network transformation projects.
4. Roaming & Interworking
Support roaming services and troubleshoot issues in cooperation with internal teams and roaming partners.
Support troubleshooting of PS/CS/IMS interworking issues related to VoLTE, voice, SMS and other IMS-based services.
5. Technical Collaboration
Work closely with internal technical teams, vendors and technology partners to investigate and resolve complex network issues.
Participate in incident resolution, technical investigations and network improvement initiatives.
Contribute to technical documentation and knowledge sharing within the team.
Required Knowledge & Experience:
Bachelor's degree in Telecommunications, IT, Computer Science or a related field.
3–5 years of relevant experience in Mobile Core, Packet Core and/or IP networks.
Solid understanding of LTE/EPC architecture and good knowledge of 5G NSA/SA concepts.
Good knowledge of GTP-C/GTP-U, Diameter, TCP/IP and DNS.
Good understanding of IPv4/IPv6, routing, BGP, VLAN, VRF, NAT and ACL.
Practical experience with Wireshark/Tshark, packet capture analysis, network monitoring and log analysis.
Good knowledge of Linux/Unix CLI.
Understanding of NFVI, virtualization and cloud-based/cloud-native Core environments.
Basic understanding of CS Core and IMS/VoLTE service flows, including voice and SMS interworking.
Good technical English and the ability to communicate effectively with vendors and internal technical teams.
Will Be an Advantage:
Experience with Ericsson, Huawei or other Mobile Core solutions.
Practical experience with NFVI, 5G Core, virtualized network functions and/or cloud-native platforms.
Knowledge of CS Core, VAS and IMS/VoLTE, including voice, SMS, USSD and signaling flows.
Experience with Diameter-based services related to IMS/VoLTE.
Knowledge of Kubernetes and/or OpenStack.
Basic Python and/or Bash scripting skills.
Experience with network migrations, upgrades and technology transformation projects.
Key Competencies:
Strong analytical and troubleshooting skills.
Systematic and structured approach to problem solving.
Strong sense of ownership and accountability.
Ability to work effectively under pressure, especially during service-impacting incidents.
Teamwork and cross-functional collaboration.
Clear and effective technical communication.
Ability to learn and adapt to new technologies.
Proactive approach to network optimization and continuous improvement.
Что нужно делать Тестировать новые функции и исправления по задачам в Jira в десктопной и Android-версиях; Проводить регрессионное тестирование перед релизами;
Location: Berlin, Germany
About Wolt
At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe.
Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life.
About the Team
Our Infrastructure teams build the foundation that engineers at Wolt, Deliveroo, and DoorDash build on: the compute, cloud, and networking capabilities that enable Engineering teams to develop, deploy, and run services at global scale. The EU Compute team has a specific focus on provisioning, scaling, and the efficient operation of GPU infrastructure for AI and ML workloads. This is an emerging space with plenty of greenfield opportunities.
We're looking for a Staff Engineer to be a hands-on technical leader for this infrastructure work that crosses team and brand boundaries. You'll set direction for the platform, turn complex problems into deliverable plans, write and review production code, and help other engineers make sound decisions. It's an exciting time to join: we're building a global platform and the choices made now will shape how engineers across the company ship for years.
What you’ll be doing
You'll own some of the hardest infrastructure problems in the company and make the platform easier to operate and safer to build on. We’re determined to build great platform products and user experiences, and you’ll be pivotal in making this reality.
Day-to-day in this role you’ll:
Set technical direction for shared AWS and Kubernetes infrastructure, balancing reliability, security, developer experience, and cost.
Lead substantial initiatives from design through rollout and operation, coordinating dependencies and decisions across Wolt, Deliveroo and DoorDash, focusing on workloads targeting GPUs.
Evolve Kubernetes clusters, cloud networking, identity, and infrastructure provisioning to support growing and varied workloads.
Build reusable Terraform patterns and self-service tooling that help teams provision infrastructure safely and consistently.
Improve deployment and operational practices, including GitOps, observability, capacity planning, incident response and recovery.
Use production signals and developer feedback to find platform friction, choose where to invest and measure whether changes actually help.
Assist with supporting the platform, with deep focus on GPU infrastructure, as well as broad focus on compute in general.
Gracefully sunset legacy infrastructure and tooling, and create strategies to reduce toil.
Mentor engineers through design reviews, implementation and incidents, raising the quality of infrastructure work across teams.
Our humble expectations
Deep experience building and operating Kubernetes and AWS infrastructure in production. Familiarity with GPU workloads and orchestration is a plus.
Strong software engineering skills: you use Go, Python or a similar language to build maintainable tools and automation.
Experience with infrastructure as code (we use Terraform) and with designing systems that other engineering teams depend on.
A track record of leading complex technical work across teams, including architectural decisions, delivery, and operational follow-through. You have the breadth to collaborate and design across team and domain boundaries, and the depth to have hands-on impact.
Strong judgment on trade-offs in distributed systems, networking, security, reliability, and cloud cost.
Clear communication, and the ability to bring people together around a practical technical direction.
What we offer
Scope and influence.
Shape infrastructure used globally, while staying close to the engineering. Your work will help product teams ship services with greater ease and confidence.
Real problems at global scale.
Multi-cluster Kubernetes, AI / ML workloads, cloud networking, GitOps, and progressive delivery across a global company.
Autonomy and ownership.
Set direction and see it through from design to operation, with the backing of a global engineering organisation spanning Europe and the US.
Growth.
Room to expand your scope, whether through deeper technical leadership or broader cross-domain influence.
Great people.
Work with talented engineers and leaders in a diverse, international environment, mentoring and learning from others.
Our Commitment to Diversity and Inclusion
We’re committed to growing and empowering a more inclusive community within our company, industry, and cities. That’s why we hire and cultivate diverse teams of people from all backgrounds, experiences, and perspectives. We believe that true innovation happens when everyone has room at the table and the tools, resources, and opportunity to excel.
Beware of recruitment scams: DoorDash, Deliveroo, and Wolt will never ask you to pay money or share sensitive financial information during hiring — learn more about our legitimate recruiting process at
Recruitment Scam Awareness - DoorDash
.
Location: Remote
Workplace: Remote
ABOUT ELEVENLABS
ElevenLabs is an AI research and product company transforming how we interact with technology.
We launched in January 2023 with the first human-like AI voice model. Today, we serve millions of users and thousands of businesses - from fast-growing startups to large enterprises like Deutsche Telekom and Meta. Our investors are some of the world's most prominent, including Andreessen Horowitz, ICONIQ Growth and Sequoia. We've raised $781M in funding and our last valuation was $22B - multiples of 11, always.
We have expanded from voice into three main platforms:
- ElevenAgents enables businesses to deliver seamless and intelligent customer experiences, with the integrations, testing, monitoring, and reliability necessary to deploy voice and chat agents at scale.
- ElevenCreative empowers creators and marketers to generate and edit speech, music, image, and video across 70+ languages.
- ElevenAPI gives developers access to our leading AI audio foundational models.
Everything we do is the result of the creativity and commitment of our team - builders doing the best work of their lives. We are researchers, engineers, and operators. IOI medalists and ex-founders. If you want to work hard and create lasting positive impact, we want to hear from you.
HOW WE WORK
- High-velocity: Rapid experimentation, lean autonomous teams, and minimal bureaucracy.
- Impact not job titles: We don’t have job titles. Instead, it’s about the impact you have. No task is above or beneath you.
- AI first: We use AI to move faster with higher-quality results. We do this across the whole company—from engineering to growth to operations.
- Excellence everywhere: Everything we do should match the quality of our AI models.
- Global team: We prioritize your talent, not your location.
WHAT WE OFFER
- Innovative culture: You’ll be part of a generational opportunity to define the trajectory of AI, surrounded by a team pushing the boundaries of what’s possible.
- Growth paths: Joining ElevenLabs means joining a dynamic team with countless opportunities to drive impact - beyond your immediate role and responsibilities.
- Learning & development: ElevenLabs proactively supports professional development through an annual discretionary stipend.
- Social travel: We also provide an annual discretionary stipend to meet up with colleagues each year, however you choose.
- Annual company offsite: Each year, we bring the entire team together in a new location - past offsites have included Croatia and Italy.
- Co-working: If you’re not located near one of our main hubs, we offer a monthly co-working stipend.
ABOUT THE ROLE
We’re looking for an Android Engineer to join our growing mobile team and build the Creative App (Android https://play.google.com/store/apps/details?id=io.elevenlabs.coreapp&hl=en_GB), bringing our audio AI to millions of users. You’ll ship features that integrate tightly with our AI-driven audio models, and work out where focused bets or incremental improvements will move the product most.
You’re impact-driven and autonomous, and good at drawing clear conclusions from experimental results. You’ll work closely with design, product and research, and help shape the app’s architecture and technical direction.
Requirements
- Strong native Android development (Kotlin, Jetpack Compose) with a track record of shipping features that improved engagement
- Have designed and run A/B tests, using data to decide what to build next
- Comfortable with ambiguity and fast-changing priorities, and able to add structure where it’s needed
- Experience owning performance, quality and responsiveness in a production app
Bonus
- Experience with audio playback or streaming on Android
- Experience building mobile infrastructure for build, test and release pipelines
Location
This role is remote-first, so it can be executed from anywhere, with the ability to operate in GMT to GMT+4 timezones preferred. If you prefer, you can work from our offices in London, Warsaw, Dublin, Amsterdam and Paris.
#LI-Remote
We are an equal opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or other legally protected statuses.
Location: Remote
Workplace: Remote
ABOUT OPTIMUM
Optimum is building the world's first data acceleration network for any blockchain. Powered by Random Linear Network Coding (RLNC), Optimum scales network speed, robustness, and throughput by orders of magnitude.
Co-founded by Muriel Medard, co-inventor of RLNC, and a team of industry experts, Optimum introduces a breakthrough in Web3 infrastructure. Our infrastructure enables high-speed data propagation, fast access, and secure updates, scaling the world computer. Backers include 1kx, Spartan, Robot Ventures, Finality Capital, Triton Capital (fka Kraken Ventures), CMT Digital, SNZ, and others.
Learn more at getoptimum.xyz http://getoptimum.xyz
ABOUT THE ROLE
We're hiring a Jr. Software Engineer to join the Optimum team and turn product ideas into working prototypes. You'll work closely with our CTO and CPO to build, test and benchmark our solutions against the competition.
This role is deliberately focused. Your job is product discovery through code: build it, measure it, learn from it, and help us find a good fit for our users.
WHAT YOU'LL DO
- Build working prototypes of new ideas alongside the engineering and product team.
- Design and run benchmarks that compare our prototypes with competing solutions, and report results clearly.
- Work with the product team to understand how our users operate, where performance matters most to them, and what they'd pay for.
- Iterate quickly: ship a prototype, present findings and gather feedback, decide what to keep, and move on.
- Use AI coding tools such as Claude Code and Cursor to prototype faster, so you spend your time on testing ideas rather than boilerplate.
- Help shape the roadmap by bringing data and working demos, not just assumptions.
WHAT WE'RE LOOKING FOR
- Strong hands-on software engineering skills and a track record of shipping, such as open-source work or side projects.
- Strong hands-on full-stack engineering skills, from backend services and APIs to web front ends, with a record of shipping things such as open-source work or side projects.
- A prototyping mindset: comfortable building something rough to answer a question, then refining what works.
- A competitive streak and curiosity about how your work stacks up against alternatives.
- Comfort with performance measurement and benchmarking.
- Clear written communication and the ability to work with a distributed team.
NICE TO HAVE
- Experience with Go or another systems language on the backend, and React or TypeScript on the front end.
- Familiarity with real-time data systems, latency-sensitive applications, or high-performance workloads.
- Experience with blockchain networks, P2P networking, or trading and MEV workflows.
- Experience working directly with product or business stakeholders.
WHAT WE OFFER
- Work on hard problems at the edge of networking, blockchain market structure, and decentralized systems.
- Close collaboration with a small, senior, cross-functional team.
- Competitive compensation, equity, and flexibility.
- Flexible time off.
- Fully remote.
- Work from wherever you do your best thinking. Most of the team operates on ET or CET, so we look for meaningful overlap with those windows (at least 5 hours per day).
This is a 4 month contract with the potential to extend.
Location: Remote - US
Founded in 2012, Bugcrowd is the preemptive security platform that unifies exposure discovery and assessment, offensive testing, and intelligence shaped by AI and human insight to help organizations avoid, discover, and validate real-world risk. Bugcrowd helps security teams move faster by identifying the exposures that matter most so they can act first and stay ahead of attackers. By combining the power of humans and AI, teams can preempt attack paths and prevent breaches. Based in San Francisco and New Hampshire, Bugcrowd is supported by General Catalyst, Rally Ventures, Costanoa Ventures, and others. Visit
www.bugcrowd.com
.
Job Summary
The Bugcrowd RL and Reasoning Team focuses on pushing the boundaries of autonomous cybersecurity by building authentic, verifiable reinforcement learning environments for world-leading foundational AI companies. As a Reinforcement Learning Engineer specializing in Reinforcement Learning from Verifiable Rewards (RLVR), you will design and scale automated verification pipelines that transform real-world software vulnerabilities into deterministic reward functions. In this role, you will bridge the gap between low-level security analysis and modern LLM reasoning models, engineering environments where AI agents learn to discover, exploit, and remediate software vulnerabilities with mathematical certainty. Instead of relying on subjective human feedback, your work directly powers the rigorous, verifiable reward signals that teach next-generation frontier AI models how to master complex cybersecurity domain logic. You will work at the intersection of fuzzing, dynamic program analysis, system exploitation, and scalable ML infrastructure to shape the safety and offensive/defensive capabilities of future artificial intelligence.
Essential Duties and Responsibilities
Design, build, and deploy high-throughput RLVR (Reinforcement Learning from Verifiable Rewards) environments that evaluate LLM action sequences against deterministic execution outcomes.
Develop automated test harnesses, sandboxes, and verification engines that convert complex vulnerability research (e.g., memory corruption, web security, logic bugs) into binary pass/fail reward signals.
Integrate Bugcrowd’s Mayhem automated analysis platform and real-world vulnerability feeds into continuous, scalable RL environment generation pipelines.
Architect safe, isolated, and highly reproducible execution environments (using Docker, BuildKit, or Nix) capable of running thousands of simultaneous agent-driven exploitation and patching trajectories.
Collaborate directly with researchers at frontier AI labs including Anthropic, OpenAI, and Cohere to define standard benchmark formats, observation spaces, and verifiable evaluation metrics for cybersecurity tasks.
Implement precise telemetry, ground-truth verification algorithms, and trajectory logging to analyze agent reasoning paths and prevent reward hacking or false positives.
Build low-level instrumentation and debugging tools to monitor memory states, process executions, and network behaviors during agent interaction cycles.
Optimize infrastructure performance and environment reset latency to support massive-scale parallel sampling and distributed RL training workflows.
Benchmark and evaluate frontier AI model performance across diverse offensive and defensive security challenges, such as automated fuzzing, exploit payload generation, and patch validation.
Education, Experience, Knowledge, Skills, and Abilities
Understanding of RL training workflows used by modern LLM systems, specifically execution-based feedback or Reinforcement Learning from Verifiable Rewards (RLVR).
Proficiency developing applications in Python and low-level systems programming in C, with Rust experience being a strong plus.
Solid understanding of software vulnerabilities, binary exploitation, fuzzing methodologies, or program analysis.
Experience with DevOps pipelines (e.g., GitHub Actions), reproducible builds (Docker, BuildKit, Nix), and comfort working with Linux systems and low-level debugging.
Experience working with or building benchmark environments (e.g., CTFs, SWE-bench, security challenges, or execution sandboxes).
Preferred Experience
Experience designing custom reward functions, ground-truth verifiers, or automated grading engines for AI safety and reasoning models.
Background in low-level program analysis tools, sanitizers (e.g., ASan/MSan), compiler instrumentation, or automated exploit generation tools.
Proven track record of participating in or developing competitive cybersecurity benchmarks, CTFs, or open-source AI evaluation frameworks.
Working Conditions and Physical Requirements
The ideal candidate must be able to complete all physical requirements of the job with or without reasonable accommodation.
Sitting and / or standing - Must be able to remain in a stationary position 50% of the time
Carrying and / or lifting - Must be able to carry / move laptop as needed throughout the work day.
Environment - remote, work-from-home 100% of the time.
Pay Range Disclosure
At Bugcrowd, we strive for fairness, equality and to create an environment that allows our people to perform at their very best. Our compensation philosophy is to foster a collaborative community that rewards, attracts and retains the best possible talent. The provided salary details are based on US national averages and we retain the flexibility to tailor to the needs of the business.
The national estimate for the current base range for the position of $176,400 - $242,550.
This position may also be eligible to participate in a discretionary bonus program or commission plan, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.
Culture
At Bugcrowd, we understand that diversity in the workplace is vital to a company’s success and growth. We strive to make sure that people are included and have a sense of being part of making Bugcrowd not only a great product but a great place to work.
We regularly hear from both customers and researchers that Bugcrowd feels like a family, and we strive to maintain that internally as well.
Our team consists of a broad range of people: musicians, adventure sports junkies, nature lovers, parents, cereal enthusiasts, night owls, cyclists, artists—you get the point.
At Bugcrowd, we are solving security threats and vulnerabilities that are relevant to everyone, therefore we believe solving these problems takes all kinds of backgrounds. We value the perspectives and experiences people from underrepresented backgrounds bring.
Disclaimer
This position has access to highly confidential, sensitive information relating to the technologies of Bugcrowd. It is essential that the applicant possess the requisite integrity to maintain the information in the strictest confidence.
The company is authorized to obtain background checks for employment purposes under state and federal law. Background checks will be conducted for positions that involve access to confidential or proprietary information (including trade secrets).
Background checks may include Social Security verification, prior employment verification, personal and professional references, educational verification, and criminal history. Applicants with conviction histories will not be excluded from consideration to the extent required by
law.
Any personal data you submit in connection with your application will be processed in compliance with Bugcrowd's Privacy Policy, which you may review here:
https://www.bugcrowd.com/privacy
.
Equal Employment Opportunity:
Bugcrowd is EOE, Disability/Age Employer.
Individuals seeking employment at Bugcrowd are considered without regards to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, or sexual orientation.
Bugcrowd is committed to the full inclusion of all qualified individuals. In keeping with our commitment, Bugcrowd will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please contact HR at ADA at bugcrowd.com.
Apply at:
https://www.bugcrowd.com/about/careers/
Location: Remote, Global
Supabase is the Postgres development platform, built by developers for developers. We provide a complete backend solution including Database, Auth, Storage, Edge Functions, Realtime, and Vector Search. All services are deeply integrated and designed for growth.
We are seeking Support Engineers to provide world-class developer support for anyone experiencing issues or seeking guidance when using Supabase. The support team is globally distributed with a strong focus on minimizing time to fix, and works closely with the product engineering and growth teams.
You will:
- Provide initial and timely responses to all support cases for a variety of topics, from billing or pre-sales requests to optimization or implementation questions.
- Triage support cases including directing users to previous answers, code examples, documentation, or escalating to specific technical or business team members.
- Monitor multiple feedback channels, e.g. Github Issues & Discussions (check them here: https://github.com/supabase/supabase/issues).
- Identify where internal tooling might be developed or obtained to improve support efficiency.
- Reproduce issues, create test cases and improve test coverage, if you have experience with testing.
You are:
- Experienced in customer support, with 3+ years of experience providing developer support to technical customers.
- Proficient in SQL (ideally PostgreSQL). You feel comfortable with complex SQL queries. If you have a database administration experience, it’s a plus.
- Excellent communication skills and fluency in English.
- Skilled in using Linux/Unix operating systems and the command line.
- Experienced working with GitHub Issues and Discussions.
- Bonus points if you're familiar with popular JavaScript frameworks like React, Vue, and Svelte and have some experience with Node.js.
- Having a degree in Computer Science is a plus too.
TIMEZONES & LOGISTICS
- It’s a full-time position permanently, with four 10-hour shifts covering weekends during APAC Hours: 00:00-10:00 UTC
- We are primarily looking for someone in Southeast Asia or India time zones for this shift.
- This position covers Friday → Monday based on the above UTC times, so this may vary slightly for your specific timezone.
WHAT WE OFFER
- Fully Remote
We hire globally. We believe you can do your best work from anywhere. There are no Supabase offices, but we provide a WeWork membership or co-working allowance you can use anywhere in the world.
- ESOP
Every team member receives ESOP (equity ownership) in the company. We want everyone to share in the upside of what we’re building together.
- Tech Allowance
Use this budget to set up your ideal work environment—laptop, monitor, headphones, or whatever helps you do your best work.
- Health Benefits
Supabase covers 100% of health insurance for employees and 80% for dependents, wherever you are. Your wellbeing and your family’s health are important to us.
- Annual Off-Sites
Once a year, the entire company gathers in a new city for a week of connection, collaboration, and fun. It’s a highlight of our year.
- Flexible Work
We operate asynchronously and trust you to manage your own time. You know what needs to be done and when.
- Professional Development
Every team member receives an annual education allowance to spend on learning—courses, books, conferences, or anything that supports your growth.
ABOUT THE TEAM
Supabase was born-remote and open-source-first. We believe our globally distributed team is our secret weapon in building tools developers love.
- ~400 team members
- 60+ countries
- 20+ languages spoken
- Over $1B raised (including our $500M Series F)
- 540,000+ community members
We move fast, build in public, and use what we ship. If it’s in your project, we probably use it in ours too. We believe deeply in the open-source ecosystem and strive to support—not replace—existing tools and communities.
УдалённоThis role is remote-first, so it can be executed from anywhere, with the ability to operate in GMT to GMT+4 timezones preferred
УдалённоjuniorГеография найма не уточнена
УдалённоRemote - US
УдалённоTIMEZONES & LOGISTICS; We are primarily looking for someone in Southeast Asia or India time zones for this shift; This position covers Friday → Monday based on the above UTC times, so this may vary slightly for your specific timezone
Must be located in the Boston area
Must be located in the Detroit area
Все вакансии в одном месте - страница 7 · Job Hunters
