51 to 75 of 430 Open Source Jobs in London

the full software development lifecycle, including architecture, technical design, C++ development, bug fixing, as well as functional and performance validations. Be part of the open-source XRP ledger community, setting high standards for coding, testing, and deployment. Actively participate in code reviews to maintain the high quality of … Ability to learn new technologies and languages quickly. Ability to independently solve highly complex problems with creative solutions. Nice to have: Experience in developing open-source software and contributing to collaborative blockchain communities. WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced More ❯

of agent behaviour-and engineering-oriented tasks-like implementing new tools for our LLM agents or creating pipelines for supporting and fine-tuning large open-source models. We recognise that some technical staff may prefer to span or alternate between engineering and research responsibilities, and this versatility is … best and most efficient ways to solve a particular problem. Particularly strong candidates also have the following experience: Building LLM agents in industry or open-source collectives, particularly in areas adjacent to the main interests of one of our workstreams e.g. in-IDE coding assistants, research assistants etc. More ❯

of agent behaviour-and engineering-oriented tasks-like implementing new tools for our LLM agents or creating pipelines for supporting and fine-tuning large open-source models. We recognise that some technical staff may prefer to span or alternate between engineering and research responsibilities, and this versatility is … best and most efficient ways to solve a particular problem. Particularly strong candidates also have the following experience: Building LLM agents in industry or open-source collectives, particularly in areas adjacent to the main interests of one of our workstreams e.g. in-IDE coding assistants, research assistants etc. More ❯

of agent behaviour-and engineering-oriented tasks-like implementing new tools for our LLM agents or creating pipelines for supporting and fine-tuning large open-source models. We recognise that some technical staff may prefer to span or alternate between engineering and research responsibilities, and this versatility is … best and most efficient ways to solve a particular problem. Particularly strong candidates also have the following experience: Building LLM agents in industry or open-source collectives, particularly in areas adjacent to the main interests of one of our workstreams e.g. in-IDE coding assistants, research assistants etc. More ❯

smarter, faster systems that rethink how finance works from the ground up. This collaborative, forward-thinking team, are building powerful, AI-driven solutions using open-source LLMs , replacing outdated systems with sleek, scalable tech within Asset Management. They’re now hiring an AI Software Engineer with a strong … hands-on experience with LLMs , Langchain , and full-stack product development. You’ll be: Designing & building production-grade NLP systems Integrating in-house and open-source models Collaborating with a cross-functional team of top engineers and product minds Working with tools e.g. Langchain, FastAPI, Docker, cloud platforms More ❯

smarter, faster systems that rethink how finance works from the ground up. This collaborative, forward-thinking team, are building powerful, AI-driven solutions using open-source LLMs , replacing outdated systems with sleek, scalable tech within Asset Management. They’re now hiring an AI Software Engineer with a strong … hands-on experience with LLMs , Langchain , and full-stack product development. You’ll be: Designing & building production-grade NLP systems Integrating in-house and open-source models Collaborating with a cross-functional team of top engineers and product minds Working with tools e.g. Langchain, FastAPI, Docker, cloud platforms More ❯

responsible, secure, high-quality code quickly and systematically. We build solutions that don't just solve symptoms of problems - we fix problems at the source - source code, to be specific. We have a dynamic culture with employees worldwide and hub offices in the USA, Switzerland, the UK, Singapore … work on a product they are proud of, love what they do, and feel energized by their peers. With our roots deep in the open source community, we're all about the mission: provide solutions that deliver Clean Code. About the Role: Reporting to the EMEA North Lead More ❯

a Senior AI Engineer , you will play a key role in designing and implementing AI-driven solutions, leveraging Large Language Models (LLMs), Generative AI, Open-Source AI tools, and AWS technologies such as Athena and SageMaker . This position requires strong technical expertise, problem-solving skills, and the … NLP and Generative AI . Design, implement, and deploy scalable AI solutions using AWS services , including Athena, SageMaker, and Lambda. Work with LLMs and Open-Source AI frameworks , ensuring model efficiency and accuracy. Collaborate with cross-functional teams to integrate AI-driven capabilities into business applications. Conduct performance More ❯

with Snyk's go-to-market approach. Training and enabling partner sales and technical teams on Snyk's platform and best practices in DevSecOps, open-source security, and cloud security. Building strong relationships with technical and executive leaders, serving as a trusted advisor for Channel, GSI, Technology, and … a high-growth SaaS company. Have a background in software development or hands-on coding experience. Have experience with DevSecOps tooling, cloud security, or open-source security solutions. Have built partner certification programs or technical enablement frameworks. Enjoy mentoring others and fostering a strong technical community. Have worked More ❯

solutions at enterprise scale. Innovation in delivery is always at the forefront of our minds, which is why we utilise a variety of cloud, open source, and proprietary technologies to achieve the best possible outcome for our clients. We have world-class architecture and software engineering communities; we … trusted technology adviser to clients and colleagues alike Your skills and experience Excellent knowledge of AWS for delivering cloud-native solutions Strong background in open-source technologies and frameworks, API-centric architecture, and experience designing scalable, resilient, and secure applications Experience with microservice-based architectures using domain-driven More ❯

solutions at enterprise scale. Innovation in delivery is always at the forefront of our minds, which is why we utilise a variety of cloud, open source, and proprietary technologies to achieve the best possible outcome for our clients. We have world-class architecture and software engineering communities; we … trusted technology adviser to clients and colleagues alike Your skills and experience Excellent knowledge of AWS for delivering cloud-native solutions Strong background in open-source technologies and frameworks, API-centric architecture, and experience designing scalable, resilient, and secure applications Experience with microservice-based architectures using domain-driven More ❯

smarter, faster systems that rethink how finance works from the ground up. This collaborative, forward-thinking team, are building powerful, AI-driven solutions using open-source LLMs , replacing outdated systems with sleek, scalable tech within Asset Management. They’re now hiring an Machine Learning Engineer with a strong … hands-on experience with LLMs , Langchain , and full-stack product development. You’ll be: Designing & building production-grade NLP systems Integrating in-house and open-source models Collaborating with a cross-functional team of top engineers and product minds Working with tools e.g. Langchain, FastAPI, Docker, cloud platforms More ❯

For this role we are open to candidates based in the EU, UK and East Coast US. We are a fast-growing Series A startup building cutting-edge technology to revolutionize cloud development processes and support highly efficient dev & test feedback loops. We've closed our last $25mil round … 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 200M+ downloads to date. Our customer base ranges from SMBs … in understanding the cloud space (serverless, IaC, testing, CI pipeline). Greenfield product experience. Authentic, inspirational leadership style. Global user base experience. Preferred: community, open source experience (freemium to premium, needs to understand dynamics). Understands the power of community. Benefits Fully remote. Competitive salary. Performance bonus. Competitive More ❯

Software/Machine Learning Engineer | Cybersecurity Startup (Open Source, AI) We’re hiring a Software/Machine Learning Engineer to join an early-stage cybersecurity startup that's building the next-gen security assistant - open-source at its core, focused on automating repetitive workflows and making More ❯

distrusting agents can exchange and validate their experiences. This protocol transforms individual code actions, trajectories and experiences into network-wide intelligence, similar to how open source software compounds value through collaborative improvement. As AI systems progress towards greater autonomy, the ability to learn from a larger pool of … intersection of Web3 and AI, disrupting traditional industries, empowering individuals, and fostering a more equitable digital landscape. Projects include: Kluster.ai - Decentralised optimisation platform for open-source models Moonbeam - EVM-compatible L1 blockchain optimised for cross-chain use cases Tanssi - Decentralised AppChain infrastructure secured via Restaking Your role as More ❯

Home based - EMEA Office Based - London, UK Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation and IoT. … colleagues Priority Pass, and travel upgrades for long haul company events About Canonical As the company that publishes Ubuntu, one of the most important open source projects and the platform for AI, IoT and the cloud, we are changing the world of software. We recruit on a global More ❯

collaboration with the thriving GNU community or the LLVM community depending on your area of expertise and motivations, you will be actively contributing to open-source projects like GCC compiler or Clang compiler and various GNU initiatives. The compilation teams are working on the most advanced R&D … needed: Prior working experience with compiler technologies may that be with LLVM or GCC. Strong programming language skills with C and/or C++. Open Source code commits and reviews are beneficial. Linux administration, particularly installation and maintenance. Experience of low level … software or hardware development that require looking at computer architecture specifications like compilers, debuggers, models. Keywords: Compiler/Compilation/LLVM/GCC/OpenSource/Linux/C/C++/Low level/Hardware/debuggers/Fortran By applying to this role you understand that we may More ❯

collaboration with the thriving GNU community or the LLVM community depending on your area of expertise and motivations, you will be actively contributing to open-source projects like GCC compiler or Clang compiler and various GNU initiatives. The compilation teams are working on the most advanced R&D … needed: Prior working experience with compiler technologies may that be with LLVM or GCC. Strong programming language skills with C and/or C++. Open Source code commits and reviews are beneficial. Linux administration, particularly installation and maintenance. Experience of low level … software or hardware development that require looking at computer architecture specifications like compilers, debuggers, models. Keywords: Compiler/Compilation/LLVM/GCC/OpenSource/Linux/C/C++/Low level/Hardware/debuggers/Fortran By applying to this role you understand that we may More ❯

key interface between research, engineering, and business teams to align technical efforts with organisational goals. Represent Speechmatics on global stages, contributing to leading conferences, open-source initiatives, publications and industry discussions that define the future of applied AI. Who we are looking for: An inspiring leader with a … have driven measurable results in production environments. Recognised contributions to the AI community, demonstrated by publications in top-tier conferences (e.g., NeurIPS, ICML), impactful open-source projects or equivalent. Strong communication and writing skills, with the ability to convey complex ideas clearly to diverse audiences. What we can More ❯

we are redefining the internet's architecture to empower users and protect privacy. Our pioneering peer-to-peer (P2P) development platform, built on our open-source technology stack, Pear, eliminates the need for traditional server infrastructure. This revolutionary approach ensures that users maintain full control over their data … sharing to complex collaborative environments, all while maintaining user sovereignty over personal data. Keet is built to demonstrate the flexibility and scalability of our open-source tech stack Pears. Join Our Mission: Software Engineer - Node (100% Remote) We are seeking a talented and motivated Node.js Software Engineer to More ❯

to negotiate complex business and technical solutions. Good understanding for modern methods affecting the way in which enterprise IT engagements are delivered, such as open-source 'fin-tech' platforms, data and AI. Excellent time management and organisational skills supported by clear logical thinking with the ability to work … solve problems, fight complexity and embrace change. Icon has applied its payments, technical and integration expertise to create IPF: a low-code, cloud-native, open-source technology platform to accelerate payments transformation. Icon's clients include leading global banks such as BNP Paribas, HSBC, NatWest and Lloyds Banking More ❯

You have a proven track record in outbound sales, being in the top 10% sellers in your team. Bonus points: You have experience with open source, developer tools, PLG companies and/or startups at Series A/B stage. You have sold to IT Operations, cybersecurity teams … for team bonding. Some roles, like sales in the US, are hybrid-please check the job description. Giving back: We're big fans of open source, and you'll get $100 per month to support projects you care about. Transparency: We all know what everyone's working on More ❯

cornerstone of democracy. Since our inception in 2014, founded by a team of scientists from CERN, we have dedicated ourselves to providing free and open-source technology to millions worldwide, ensuring access to privacy, security, and freedom online. Our journey began with Proton Mail, the largest secure email … fast and avoid unnecessary politics. Tired of blending into the crowd? Join us and do work you can truly be proud of. Check our open-source projects here ! Impact & Team Join the team working on the Mail & Calendar ecosystem alongside 50 Engineers Current Projects: Developing innovative productivity tools … is a community-first organization, started with the support of a crowdfunding campaign and built with community input. To this day, Proton's only source of revenue is user subscriptions. Over 100 million people trust and support Proton, and we put our users and community first in everything we More ❯

Machine Learning Engineer | Cybersecurity Startup (Open Source, AI) We’re hiring a Machine Learning Engineer to join an early-stage cybersecurity startup that's building the next-gen security assistant - open-source at its core, focused on automating repetitive workflows and making life easier for security More ❯

Machine Learning Engineer | Cybersecurity Startup (Open Source, AI) We’re hiring a Machine Learning Engineer to join an early-stage cybersecurity startup that's building the next-gen security assistant - open-source at its core, focused on automating repetitive workflows and making life easier for security More ❯