Вакансии

Location: Remote Workplace: remote ABOUT YOU   Xsolla is seeking a Principal Engineer with deep expertise in Identity and Golang backend development to lead the evolution of our authentication and authorization stack — enabling developers and players to connect safely and effortlessly across the Xsolla ecosystem.   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: Architect and lead the design of Xsolla’s next-generation identity platform, supporting authentication, authorization, single sign-on (SSO), and account federation across internal and external services. Develop high-performance Golang microservices that manage user identity, access tokens, and permission enforcement at global scale. Collaborate closely with security, DevOps, and platform engineering teams to embed Zero Trust principles and standardize access governance across services. Integrate modern IAM standards and protocols (OAuth2, OIDC, SCIM) to enhance developer experience and partner integrations. Mentor and coach engineering teams on secure service design, identity best practices, and cross-service communication patterns. Partner with product teams to ensure that identity-related features — such as player login, entitlement management, and account linking — are scalable, compliant, and user-friendly. Define and enforce API and data security standards, supporting compliance initiatives. Evaluate and integrate third-party identity frameworks or open-source solutions (e.g., Keycloak, Auth0, Ory, ForgeRock) as part of Xsolla’s hybrid identity strategy. Qualifications & Skills: 10+ years in backend or systems engineering, including 5+ years designing and implementing authentication and authorization services. Expert-level skills in Golang, with experience building and scaling distributed, event-driven microservices. Proven track record with identity federation, token management, and access control systems. In-depth understanding of authentication and authorization standards (OAuth 2.0, OIDC, JWT, SCIM). Solid grasp of security principles, encryption, key management, and secrets management systems (e.g., HashiCorp Vault, AWS KMS). Experience building high-availability systems in Kubernetes-based environments using AWS, or GCP. Strong architectural vision with the ability to influence cross-team design and technology direction. Excellent communication and collaboration skills across distributed teams. Nice to Have: Experience building or contributing to identity systems for gaming or SaaS ecosystems. Familiarity with multi-tenant architectures, ReBAC/ABAC models, and policy-as-code (OPA, AuthZ frameworks). Background in security engineering, DevSecOps, or compliance automation. Contributions to open-source Golang. 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 100% company-paid medical, dental, and vision plans, unlimited Flexible Time Off, 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 Principal Engineer, 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: Accessing confidential company data Ensuring compliance with regulatory requirements Handling sensitive financial information/managing budgets/accessing funds   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. The listed range is specific to Los Angeles, CA, and varies based on factors such as location and experience.

Location: Anywhere Workplace: Remote ABOUT SQUADS Squads is a financial technology company building products and APIs for the stablecoin economy. We build on open infrastructure, global money and internet capital markets to deliver better financial services to every business, individual and developer. OUR PRODUCTS - Squads Multisig: The premier multisig platform for Solana. - Altitude: A global business account to save, earn and move money. - Fuse: A personal finance app for stablecoins and tokenized assets. These three products are powered by our stablecoin infrastructure and developer platform: Grid. Our investors include Haun Ventures, Multicoin Capital, Electric Capital, Coinbase Ventures, Toly, Mert, and others. Squads Multisig is our self-custodial platform for securing and managing assets on Solana. It’s built for Solana treasuries, program upgrades, validator operations and token management. Trusted by 450+ teams to secure over $10 billion in value, Squads Multisig is used by almost every team in the Solana ecosystem, including leading protocols such as Jito, Jupiter, Drift, Kamino, and Helius. ABOUT THE ROLE As a Senior Frontend Engineer, you’ll join a high-caliber team at the intersection of design and engineering. You will own the development of intuitive, performant, and secure web applications built on Squads Protocol. You’ll work across product, design, and engineering to shape user experiences from ideation to production, with full ownership of feature development. If you're a multidisciplinary builder who obsesses over elegant interfaces and clean code—this is your playground. This role is ideal for someone who wants autonomy, thrives in rapidly evolving environments and wants to make an outsized impact in a fast-moving Web3 environment. WHAT YOU WILL BE DOING - Rapidly implement functional, responsive UI components from designs, with attention to performance and accessibility - Lead frontend architecture and help evolve our design system - Collaborate with product and engineering teams to ship features from concept to launch - Maintain and improve the application codebase with scalable, well-documented, and tested code - Uphold high coding standards, contribute to code reviews, and mentor junior engineers QUALIFICATIONS CORE EXPERTISE: - Demonstrated expertise (5+ years) in building and delivering high-performance, visually refined web applications, with a deep understanding of browser fundamentals, modern JavaScript (ES6+), and advanced TypeScript features.5 - Strong proficiency in React, TypeScript, and modern frontend development best practices with Clean, modular, async-safe code - You approach product engineering with a user-first mindset, proactively shaping features and interfaces to deliver intuitive, delightful, and accessible experiences. - Solid grasp of systems design, debugging, and application performance - Experience working with REST APIs and backend systems, gPRC and WebSocket APIs - Strong communication skills and comfort with ambiguity—able to propose and lead solutions proactively - Understands extension sandboxing and least-privilege permissions CORE SKILLS - TypeScript, React, - Next.js http://next.js, Server Components, - Jōtai (or similar), - Vanilla Extract, StoryBook, Jest (or similar) - Web Browser API fundamentals, - Solana Web3.js http://web3.js, - Web Workers, - Web security fundamentals (CSP, CORS, JWT, etc), - Chrome Extension APIs , NICE TO HAVE: - Interest or experience in hybrid design-engineering roles - Portfolio of UI/UX work and familiarity with Figma - Knowledge of blockchain UX patterns and product flows - Experience with Solana development (wallet adapters, token programs, client SDKs) WHY SQUADS - Build the future of open finance. You’ll help accelerate adoption of stablecoin‑powered solutions at a time when finance is shifting to programmable, borderless rails - Broaden your impact. Drive alignment, innovation, and results across teams and initiatives. - Modern tools and culture. Operate with high agency in a mission‑driven team that ships relentlessly and values craftsmanship. - Mission Focus. We don't hire people that need to be managed, we hire people that want to be led BENEFITS - We’re offering competitive and generous compensation, with meaningful equity and upside. - Unlimited, flexible PTO - Flexible work schedule - Company laptop and allowance for any necessary home equipment - Two company-paid off-sites per year OUR VALUES - Kindness Matters. We show kindness and respect to all users, customers, and team members in every interaction (internal and external). Being kind compounds and strengthens our relationships. - Craftsmanship Excellence. We deeply care about the quality of everything we create. Every contribution, regardless of size, must meet our high standards for excellence. - Radical Transparency. We communicate openly and honestly with each other. Respectful candor is valued over comfortable silence, as we can't afford to miss insights due to fear of speaking up. - Bias for Action. We believe action produces information. At no more than 20% completion of a project we must have a working prototype to test and iterate on. - Speed with Purpose. We move with urgency and focus. Slow and expensive usually go together. Good, fast, and cheap outcomes are perfectly achievable through disciplined execution. - Professional Integrity. We never speak negatively about competitors, partners, vendors, or others. Such behavior reflects insecurity and provides no value. - Creative Problem-Solving. We value innovative thinking that challenges conventions. The best solution aligns with the task at hand, not necessarily with how things have always been done. - Team Over Ego. We share both successes and failures collectively. No individual's ego should surpass our commitment to the product and its impact. - Results Over Hierarchy. We do not care about titles in this company. No politics, no hierarchy. All we care about is winning together. If you’re excited to help businesses access modern money rails and believe that stablecoins will democratize finance, we’d love to talk. Reach out to us

Location: São Paulo, Brazil; Buenos Aires, Argentina; Montevideo, Uruguay; Lima, Peru; Santiago, Chile; Asunción, Paraguay Workplace: remote At TechBiz Global , we are providing recruitment service to our TOP clients from our portfolio. We are currently looking for a skilled Java Backend Engineer to join one of our clients' teams . You will play a key role in building an Applicant Tracking System (ATS) integrated with REST APIs and FIX APIs. You will work closely with product managers, architects, and front-end engineers to design, develop, and optimize scalable backend services for high-performance applications. Key Responsibilities * Design and implement backend services and APIs in Java (Spring Boot / Jakarta EE) for ATS functionality. * Develop and maintain RESTful APIs for integrations with external systems and internal services. * Implement and optimize FIX protocol-based APIs for financial/trading system integrations. * Ensure low-latency, high-availability, and secure backend architecture. * Write clean, maintainable, and well-documented code following industry best practices. * Collaborate with DevOps to deploy and monitor services in production environments (AWS, GCP, Azure, or on-prem). * Optimize database performance (SQL/NoSQL) and design schemas for ATS workflows. * Conduct code reviews, unit testing, and integration testing to maintain code quality. * Troubleshoot and resolve performance, scalability, and reliability issues. * Stay updated on emerging technologies, protocols, and best practices in API development and backend engineering. Bachelor’s or Master’s degree in Computer Science, Engineering, or related field. 3–5 years of professional experience** in backend development with Java. Strong expertise in Spring Boot, Hibernate/JPA, and RESTful APIs. Hands-on experience with FIX protocol (QuickFIX/J or similar libraries). Solid knowledge of multithreading, concurrency, and low-latency system design. Experience with databases (PostgreSQL, MySQL, MongoDB, Redis, etc.). Proficiency in Git, CI/CD pipelines, Docker, Kubernetes. Strong understanding of security principles (OAuth2, JWT, SSL, encryption). Excellent problem-solving, debugging, and analytical skills. Nice to Have Experience with financial systems, trading platforms, or ATS solutions. Knowledge of messaging systems (Kafka, RabbitMQ, Redpanda, Chronicle Queue, etc.). Exposure to cloud services (AWS/GCP/Azure). Familiarity with microservices architecture and event-driven systems.

Location: United States Workplace: Remote Blockstream https://blockstream.com/ was founded in 2014 by Dr. Adam Back https://en.wikipedia.org/wiki/Adam_Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. Focusing on building fundamental Bitcoin infrastructure, Blockstream quickly grew into one of the leading technology power houses of the industry. At Blockstream, we’re building solutions on Bitcoin that will disrupt the existing financial system. We imagine a world where individuals and businesses can easily access a global, permissionless system to secure their money, use it every day, and invest it or put it to work. In pursuit of our expansive vision, we’ve built a full stack of innovative products on top of the Bitcoin protocol, from layer-2 projects like Liquid and Core Lightning, to end-user software and hardware wallets like Green and Jade. Our brand stands for innovation in the Bitcoin community, and we’re growing our team to accelerate the future. Blockstream is looking for Software Engineers to work on our enterprise custody solution. You’ll design and maintain scalable end-to-end systems that serve APIs and SDKs, and work on everything from database architecture to cloud-based deployments.  What You’ll Be Doing (Responsibilities): - Design, develop, and maintain scalable end-to-end systems that serve APIs and SDKs. - Full stack software development, from database architecture to cloud-based deployment. - Optimize system performance and security to support high-availability applications. - Collaborate with cross-functional teams, including front-end developers, product managers, and hardware engineers to deliver seamless solutions. - Implement best practices in software development, including CI/CD, automated testing, and code reviews. - Research and integrate emerging technologies to enhance security and system efficiency. - Troubleshoot and resolve complex software issues in a fast-paced development environment. - Mentor junior developers and contribute to team knowledge-sharing efforts. What We Look For In You (Required Qualifications): - 5+ years of experience in full-stack software development, with a focus on backend engineering. - Proficiency in backend technologies such as C++, Python, Rust, Node.js. - Strong experience in designing and building RESTful APIs and SDKs. - Hands-on experience with cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes). - Deep understanding of database technologies, including SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis). - Familiarity with authentication and security best practices, including OAuth, JWT, encryption, and access control. - Experience with CI/CD pipelines, automated testing, and DevOps tools. - Strong problem-solving skills and ability to work independently or as part of a team. - Excellent communication skills, with the ability to explain technical concepts to non-technical stakeholders. Nice To Haves (Preferred Qualifications): - Experience with Bitcoin, blockchain technology, or cryptography. - Open-source software development experience. - Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field (or equivalent experience). - Experience with system/software architecture.   🔒 Stay Safe from Job Scams All official Blockstream communication will come from an @blockstream.com email address. We will never ask you to share sensitive information or purchase equipment during the hiring process. If in doubt, contact us at hr@blockstream.com. Learn more about avoiding job scams here https://consumer.ftc.gov/consumer-alerts/2022/05/want-work-home-spot-scams-first.