1 to 25 of 113 Remote Open Source Jobs in the UK

Get paid to write open-source software Do you want to work on software used by billions around the world? Do you believe in the goals of the open-source software community? This team wants to hear from you. You will be working alongside similarly enthusiastic and highly skilled developers building software with open-source projects and making important contributions to the open-source community. You could be working on improvements to WebKit, or building new Linux kernel driver, or one of countless other projects this team tackles, all of them deeply technical. Requirements: • Knowledge and interest in developing systems level software such as kernel drivers, web rendering engines, display servers, or … A/V libraries. • Demonstrable and significant contributions to open-source projects. This includes engagement with the community and understanding of open-source development methodologies not just code commits. • High level of skill in C. Additional knowledge of Rust would be beneficial. • A Computer Science degree or similar experience. You will be working in a globally More ❯

Senior Front End Developers - Government, Open-source, HTML, CSS, JavaScript, TypeScript, NodeLS, SQL, API, Cloud base, Hybrid, Newcastle or Leeds Our client within the public sector is looking for an experienced Senior Front End Developer to join a dynamic team dedicated to delivering accessible, high-quality digital services. You will lead the development of reusable UI components and … create consistent, efficient solutions that serve a wide range of users across multiple devices and browsers. Key requirements include significant experience in large-scale Front End development, proficiency with open-source tools and frameworks, and a strong understanding of integrating Front End systems with Back End services in cloud environments such as AWS or Azure. You should be … passion for innovation, quality, and continuous improvement. Key experience includes: Significant experience in large-scale Front End development for systems with high user loads and complex processes. Proficiency with open-source tools and frameworks such as HTML, CSS, JavaScript (client and Server Side), TypeScript, and modern Front End frameworks. Proven ability in delivering comprehensive unit testing using frameworks More ❯

the core of our platform: our distributed database engine, integrated AI capabilities, and high-availability solutions. This role sits at the intersection of distributed systems, OLTP, high availability, and open-source innovation. You will contribute to the product direction for our scalable distributed architecture, our core MariaDB-based OLTP server, and our synchronous high-availability offerings powered by … of the developer and the enterprise architect, translating complex challenges into a product roadmap that pushes the boundaries of what a database can do. You will collaborate with the open-source community and provide key product support for our core MariaDB-based OLTP server. Your work will empower organizations worldwide to build resilient, high-performance applications. Key Responsibilities … content, product demos, and sales enablement materials that clearly articulate our value proposition. Community & Ecosystem Collaboration: Serve as a technical product expert. Collaborate with developer relations to support our open-source community, gathering feedback and representing their needs to inform the product roadmap. Cross-Functional Alignment: Ensure alignment across engineering, marketing, sales, and support, communicating progress and dependencies More ❯

s your chance to take full ownership of frontend projects from design to delivery with minimal supervision! About Ballerine Ballerine is a high-growth, early-stage startup building an open-source platform for identity verification and risk management in the financial sector. It’s a fast-paced team preparing for Series A funding — and looking for a Senior … in React, TypeScript, modern frontend frameworks and architectures • Strong understanding of state management, performance optimization, and scalable component-driven design • Experience with testing frameworks (Jest, Cypress, Playwright) • Comfort with open-source principles and contributions • Clear, confident communication in English (minimum C1, no heavy accents) • Ability to onboard quickly and deliver at startup pace • Proactive, independent, and ownership-driven … Chance to join a core team pre-Series A, shaping the product and the company’s direction • Work on complex, high-scale challenges with cutting-edge tools (LLMs, AI, open-source) • A culture where your voice matters — small team, high impact, no bureaucracy • Opportunities for technical leadership and direct influence on strategy • Fully remote role Responsibilities • Architect, develop More ❯

and Bristol, our UK offices are where emerging talent contributes to global innovation. Whether you're helping to shape the next generation of processors or building tools used across open-source communities, the work you do here will have real-world impact from day one. Our roots in the UK run deep and so does our commitment to … the UK. I wanted to join Arm to grow at a company tackling some of the most exciting challenges in tech, in an inclusive and welcoming environment. Working on open-source projects has been a rewarding challenge - learning how to contribute on behalf of Arm and meet the high standards these projects demand. Intern, based in Manchester Graduate … looking for more than just technical ability. At Arm, we want individuals who are curious, collaborative, and motivated to learn. Whether you're experimenting with side projects, contributing to open-source work, or stepping outside your comfort zone, we value candidates who bring initiative and creativity to everything they do. "I'd recommend checking out the blogs on More ❯

empower developers to rapidly build and test their cloud applications, allowing for a more enjoyable dev experience, and saving valuable time and resources. LocalStack has a large and active open-source community (57k+ stars on GitHub) with over 100k active users worldwide and 290M+ downloads to date. Our customer base ranges from SMBs to Global Fortune 500 companies. … GCP), ideally working with big data or database services. Strong programming skills in Python (Java a plus); familiarity with TypeScript or Go is (nice to have.) Experience contributing to open source or working with communities to gather feedback, triage issues, and guide contributors. (Nice to have) Fully remote Competitive salary Performance bonus Competitive share options Annual company retreat … redefining how developers interact with cloud platforms. By joining our team, you'll have the opportunity to: Lead a critical engineering function in a fast-growing company with huge open source traction and global customer base. Work on cutting-edge technology with a talented and passionate team. Shape the evolution of a product used and loved by thousands More ❯

APIs, DevOps and Microservices - and what we like to call Digital Integration. Our expert IT integration services include consulting, development, delivery, support and resourcing. Our consultants have experience of open-source andbest-of-breed technologies. Integrella has been in the integration business for years - so can help with all aspects of integration, strategy, design, implementation. Using open source technology or partnering with all the best suppliers in the industry, we are completely vendor neutral, and work with our customers to find the best solutions for them. Job Description This is a remote position. We are seeking a dynamic Quality Assurance (QA) Engineer that is comfortable working both hands-on in our product engineering teams delivering … implement data sharing solutions and build digital products as part of their digital strategy. We advise and deliver on all aspects of product engineering, strategy, design, and implementation. Using open-source technology or partnering with all the best suppliers in the industry, we are completely vendor neutral, and work with our customers to find the best solutions for More ❯

creativity, precision, and a shared obsession with what’s next. You’ll be part of a team shaping the future of Agentic AI - architecting and scaling a next-gen open-source framework that powers autonomous systems across industries. We're not just talking innovation - we're building it. Fast . Startup inside Kyndryl: Zero bureaucracy. You’ll work … equally — ideas over titles. What You’ll Do Serve as the bridge between deep technical work and business transformation, solving meaningful challenges through Agentic AI. Work on a modular, open-source Agentic AI framework - integrating GenAI and real-world tools. Develop, train, and deploy intelligent agents using tools like Python, Azure ML, focused on dynamic, self-improving systems. … e.g., microservice ecosystems, message brokers) Plus, You Bring Ability to operate independently and collaborate within a high-trust, low-hierarchy team Contributions to academic/technical communities and shaping open-source projects Bonus Points For Certifications in Azure, AWS, or Google ML platforms Demonstrated contributions to graph theory, DevOps, or distributed systems Previous projects involving digital transformation, AI More ❯

practices, performs triaging of security issues, and implements fixes to deliver secure applications. Familiar with common software vulnerabilities and leading practices to mitigate. Should have some experience in researching open- source technologies for use in building systems and participate in open source communities as needed. Works on projects of moderate scope and complexity. Pro-actively identifies More ❯

to Work" please feel free to ask us about the access to work scheme. Desirable Skills Experience using Azure OpenAI and foundational LLMs for Retrieval-Augmented Generation (RAG), including open-source implementations. Experience with LLM architecture (e.g., Transformer, GANs, VAEs), Fine-tuning PEFT/LoRA, Context embedding, Vector database technologies, and Semantic Search techniques & tools. Familiarity with Azure … Python libraries (e.g., PyPDF, Camelot) and OCR tools like Azure Document Intelligence or AWS Textract. Awareness of emerging InsurTech innovations, with the ability to propose creative solutions and adapt open-source models and technologies. What We Will Offer You Recognised and rewarded for a job well done, we have a range of flexible benefits for you to choose More ❯

responsibilities Define and champion the technical strategy for services, ensuring alignment with user needs and business goals Lead technical specialists across multiple projects, solving architectural challenges. Design and assure open-source, user-centred systems in agile environments. Own the technical design and evolution of services, including integration and interoperability. Provide technical governance and present designs to boards such … governance boards and ensuring alignment with standards. Previous or current experience developing web services using Python/Django and/or NodeJS/React with knowledge of cloud technologies, open-source technologies and secure system design. Proven leadership in guiding technical teams, delivering user-focused services in agile environments and communicating complex concepts to varied stakeholders. Desirable skills More ❯

responsibilities Define and champion the technical strategy for services, ensuring alignment with user needs and business goals Lead technical specialists across multiple projects, solving architectural challenges. Design and assure open-source, user-centred systems in agile environments. Own the technical design and evolution of services, including integration and interoperability. Provide technical governance and present designs to boards such … governance boards and ensuring alignment with standards. Previous or current experience developing web services using Python/Django and/or NodeJS/React with knowledge of cloud technologies, open-source technologies and secure system design. Proven leadership in guiding technical teams, delivering user-focused services in agile environments and communicating complex concepts to varied stakeholders. Desirable skills More ❯

responsibilities Define and champion the technical strategy for services, ensuring alignment with user needs and business goals Lead technical specialists across multiple projects, solving architectural challenges. Design and assure open-source, user-centred systems in agile environments. Own the technical design and evolution of services, including integration and interoperability. Provide technical governance and present designs to boards such … governance boards and ensuring alignment with standards. Previous or current experience developing web services using Python/Django and/or NodeJS/React with knowledge of cloud technologies, open-source technologies and secure system design. Proven leadership in guiding technical teams, delivering user-focused services in agile environments and communicating complex concepts to varied stakeholders. Desirable skills More ❯

responsibilities Define and champion the technical strategy for services, ensuring alignment with user needs and business goals Lead technical specialists across multiple projects, solving architectural challenges. Design and assure open-source, user-centred systems in agile environments. Own the technical design and evolution of services, including integration and interoperability. Provide technical governance and present designs to boards such … governance boards and ensuring alignment with standards. Previous or current experience developing web services using Python/Django and/or NodeJS/React with knowledge of cloud technologies, open-source technologies and secure system design. Proven leadership in guiding technical teams, delivering user-focused services in agile environments and communicating complex concepts to varied stakeholders. Desirable skills More ❯

responsibilities Define and champion the technical strategy for services, ensuring alignment with user needs and business goals Lead technical specialists across multiple projects, solving architectural challenges. Design and assure open-source, user-centred systems in agile environments. Own the technical design and evolution of services, including integration and interoperability. Provide technical governance and present designs to boards such … governance boards and ensuring alignment with standards. Previous or current experience developing web services using Python/Django and/or NodeJS/React with knowledge of cloud technologies, open-source technologies and secure system design. Proven leadership in guiding technical teams, delivering user-focused services in agile environments and communicating complex concepts to varied stakeholders. Desirable skills More ❯

responsibilities Define and champion the technical strategy for services, ensuring alignment with user needs and business goals Lead technical specialists across multiple projects, solving architectural challenges. Design and assure open-source, user-centred systems in agile environments. Own the technical design and evolution of services, including integration and interoperability. Provide technical governance and present designs to boards such … governance boards and ensuring alignment with standards. Previous or current experience developing web services using Python/Django and/or NodeJS/React with knowledge of cloud technologies, open-source technologies and secure system design. Proven leadership in guiding technical teams, delivering user-focused services in agile environments and communicating complex concepts to varied stakeholders. Desirable skills More ❯

responsibilities Define and champion the technical strategy for services, ensuring alignment with user needs and business goals Lead technical specialists across multiple projects, solving architectural challenges. Design and assure open-source, user-centred systems in agile environments. Own the technical design and evolution of services, including integration and interoperability. Provide technical governance and present designs to boards such … governance boards and ensuring alignment with standards. Previous or current experience developing web services using Python/Django and/or NodeJS/React with knowledge of cloud technologies, open-source technologies and secure system design. Proven leadership in guiding technical teams, delivering user-focused services in agile environments and communicating complex concepts to varied stakeholders. Desirable skills More ❯

experience for both small projects and large monorepos. Stay abreast of industry trends and advancements in CI/CD technologies, bringing innovative ideas to the team. Engage with the open-source community, participate in discussions, and contribute to related projects, aligning with Vercel's commitment to giving back to the developer community. Write clean, efficient, tested, and well … If You: Are a React or Next.js expert. Have worked to develop a CI/CD platform for other developers to use. Have experience contributing to, or participating in open source projects. Benefits: Competitive compensation package, including equity. Inclusive Healthcare Package. Learn and Grow - we provide mentorship and send you to events that help you build your network More ❯

React and Typescript/Open-Source Software Engineer to join our talented & recently formed creative team. Based in Manchester and fully remote, the team are designing and developing the next generation containerised IT infrastructure. This React and TypeScript Software Engineer opportunity is deeply technical, and we want someone with solid Python or TypeScript experience and a thirst to … peer code review. Any exposure to Angular front-end tech is highly advantageous. Are you excited about Golang, Jenkins, Dockers, Kubernetes, architecture, test driven development, API's and everything open source? Then I'd love to hear from you. Superb environment, office, tech stack and ability to learn from one of the greatest in the industry. Please apply More ❯

Location: Manchester, Fully Remote Category: Contract Jobs Salary: 225pd + Outside IR35, Fully Remote Ref: JT/JC/5956 Contact Name: James Clarke Telephone: React and Typescript/Open-Source Software Engineer to join our talented & recently formed creative team. Based in Manchester and fully remote, the team are designing and developing the next generation containerised IT … peer code review. Any exposure to Angular front-end tech is highly advantageous. Are you excited about Golang, Jenkins, Dockers, Kubernetes, architecture, test driven development, API's and everything open source? Then I'd love to hear from you. Superb environment, office, tech stack and ability to learn from one of the greatest in the industry. Please apply More ❯

the reliability and stability of the SDK. Collaborate with cross-functional teams, including product managers, designers, and infrastructure experts, to address challenges and deliver exceptional results. Engage with the open-source community, participate in discussions, and contribute to related projects, aligning with Vercel's commitment to giving back to the developer community. Actively gather feedback from developers and … use it to drive continuous improvement and innovation in the AI SDK. About You: You have at least 5+ years of relevant experience Experience contributing to or participating in open source projects Excellent communication skills and the ability to work effectively in a collaborative team environment Competitive compensation package, including equity. Learn and Grow - we provide mentorship and More ❯

design and architecture of core systems. Collaborate with cross-functional teams including product, research, and security Write clean, testable, and maintainable code, ensuring scalability and reliability Engage with the open-source and blockchain developer community Key Requirements Strong commercial experience with Rust (production-level) Deep understanding of systems programming, memory management, and concurrency Experience with distributed systems Enthusiasm … for crypto, Web3, and open-source development Excellent communication skills and ability to work in a collaborative hybrid team More ❯

hiring managers to deeply understand team needs, technical requirements, and ideal candidate profiles. Proactively identify and engage passive candidates through innovative sourcing methods-including GitHub, GoogleScholar, Stack Overflow, arXiv, open-source communities, tech events, and bespoke search strategies. Experiment with and implement new sourcing tools, outreach methods, and engagement tactics to increase pipeline quality and diversity. Act as … talent globally. A strategic mindset with a proactive approach to talent discovery-you don't wait for reqs to get started. Expertise in sourcing beyond LinkedIn (e.g. GitHub, Kaggle, open-source projects, technical blogs, conferences, custom Boolean strings). Strong communication and storytelling skills-you know how to craft compelling outreach messages that resonate with technical candidates. Ability … a great culture while still providing flexibility to work from home. We expect employees to be in the office at least three days per week. We have a radically open and accepting culture at Intercom. We avoid spending time on divisive subjects to foster a safe and cohesive work environment for everyone. As an organization, our policy is to More ❯

Bitcoin, and Zcash and has pioneered a completely new, next-generation blockchain protocol with Polkadot and the framework it's built with, Substrate. Parity is passionate about building the open-source technologies needed to power an unstoppable, decentralised web -known as Web3- and helps developers and organisations implement and build upon the Web3 tech stack. People in our … in a relatively new industry and an uncertain regulatory environment Prior knowledge of blockchain would be an advantage, however an interest in and a desire to learn about blockchain, open source and decentralised systems will be the key to success in this role About working for us Competitive remuneration packages based on iterative market research, including tokens (where … everyone in our collective feeling included and welcome. View our Applicant Notice to see how we use your data. Is this position not quite your match? Browse our other open roles. More ❯

Bitcoin, and Zcash and has pioneered a completely new, next-generation blockchain protocol with Polkadot and the framework it's built with, Substrate. Parity is passionate about building the open-source technologies needed to power an unstoppable, decentralised web -known as Web3- and helps developers and organisations implement and build upon the Web3 tech stack. People in our … in a relatively new industry and an uncertain regulatory environment Prior knowledge of blockchain would be an advantage, however an interest in and a desire to learn about blockchain, open source and decentralised systems will be the key to success in this role About working for us: Competitive remuneration packages based on iterative market research, including tokens (where … everyone in our collective feeling included and welcome. View our Applicant Notice to see how we use your data. Is this position not quite your match? Browse our other open roles. More ❯