26 to 50 of 650 Open Source Jobs in the UK

transformation engagements. We are looking for experience in the following skills Excellent hands-on experience with Java and associated technologies. Experience working with Spring Boot. Hands-on knowledge of open-source tools, libraries and standards. Some working knowledge of containers (Docker). Strong experience of working in Test Driven Development, test coverage, unit tests, feature tests and test … tune, profile, and debug applications. Knowledge of both traditional and agile delivery methods. Drive and desire to further your skillset and lead in the application domain. Good knowledge of Open source and open standards. Strong analytical skills and attention to detail. Knowledge and demonstrable experience of both traditional and agile delivery methods. What is in it for More ❯

AI to simplify tasks, save time, and enhance learning and creativity. Our technology is designed to integrate seamlessly into daily working life. We democratize AI through high performance, optimized, open source and cutting edge models, products and solutions. Our comprehensive AI platform is designed to meet enterprise needs, whether on premises or in cloud environments. Our offerings include … the security team to ensure infrastructure adheres to best security practices and compliance requirements Document processes and procedures to ensure consistency and knowledge sharing across the team Contribute to open source projects, research publications, blog articles and conferences About you Master's degree in Computer Science, Engineering or a related field 7+ years of experience in a DevOps … Remote This role is primarily based at one of our European offices (Paris, France and London, UK). We will prioritize candidates who either reside in Paris or are open to relocating. We strongly believe in the value of in person collaboration to foster strong relationships and seamless communication within our team. In certain specific situations, we will also More ❯

tasks. Collaboration and communication: Excellent interpersonal and communication skills, with technical and non-technical stakeholders. Nice to have: Visual design: Background in graphic design and/or visual arts. Open-source: Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an More ❯

tasks. Collaboration and communication: Excellent interpersonal and communication skills, with technical and non-technical stakeholders. Nice to have: Visual design: Background in graphic design and/or visual arts. Open-source: Contributions to and experience in open-source projects. Startup experience: Experience with a startup work environment and wider ecosystem. Why join us? Work in an More ❯

enable researchers, engineers, and investment teams to access and analyse data at scale. You’ll join a small, highly capable team operating in a cloud-native, Kubernetes environment, combining open-source tools and modern engineering practices to create a unified, next-generation data platform. What You’ll Get A key engineering role within a world-class technology organisation … that values innovation and impact. Exposure to a modern data ecosystem including Iceberg, Kafka, Airflow, and other open-source technologies. A collaborative, intellectually curious culture where engineers are trusted to take ownership and drive outcomes. Excellent compensation package with strong performance incentives. What You’ll Do Design, develop, and maintain high-performance APIs and core data service s More ❯

enable researchers, engineers, and investment teams to access and analyse data at scale. You’ll join a small, highly capable team operating in a cloud-native, Kubernetes environment, combining open-source tools and modern engineering practices to create a unified, next-generation data platform. What You’ll Get A key engineering role within a world-class technology organisation … that values innovation and impact. Exposure to a modern data ecosystem including Iceberg, Kafka, Airflow, and other open-source technologies. A collaborative, intellectually curious culture where engineers are trusted to take ownership and drive outcomes. Excellent compensation package with strong performance incentives. What You’ll Do Design, develop, and maintain high-performance APIs and core data service s More ❯

About the Core Technology Team The Core Technology Team comprises several teams building tools and infrastructure used across all of our research work. This includes projects like Inspect (our open-source evaluation framework), systems for running evaluations at scale, and hosting frontier open-weights models for evaluations or human studies. Working within the Core Technology Team, you … one of our "sandbox plugins" for Inspect, supporting advanced agentic evals with safe mechanisms to let models write and execute arbitrary code Implement support for a new class of open-weights model on our model hosting platform Support a research team with designing custom infrastructure for a new research project Collaborate with the open-source community on More ❯

to play each person to their strengths, ensuring they are always working within a team that will not only challenge them but ultimately prove fulfilling. Technically, we use many Open Source technologies, keeping our tech stack cutting edge where possible. Your role as a Software Engineer will be to create and maintain applications within our micro service architecture … Work in an agile development process. Qualifications Components for success. You have... Experience using Python. Linux/Unix experience. Solid experience with relational databases. An interest in Python and Open Source technologies. The ability to learn on the job and show an aptitude for solving complex technical problems. You'll get extra points for... Experience within a highly More ❯

Duties & Responsibilities Technical Development ● Develop platform functionality using Python, building APIs and integrations to extend capabilities for diverse client needs. ● Design and implement LLM-powered applications and workflows using open source models such as Llama, Qwen and Gemma, as well as those online models from OpenAI, Gemini, etc. ● Build AI agents with tool/function calling, prompt engineering … to Have The following are examples of specialised areas that would be valuable. Deep expertise in some of these areas is preferred over surface-level knowledge across all domains. ● Open source LLMs (Llama, Qwen, Gemma, GPT OSS) and local deployment strategies. ● Frameworks and protocols such as Model Context Protocol (MCP) or Agent-to-Agent (A2A). ● LLM evaluation More ❯

Founded in 2023, the company has already secured significant early-stage funding, including a $10m Seed round in 2024. The founding team is composed of ex-Palantir and ex-Open AI leaders. They combine deep sector knowledge with cutting-edge design and software engineering expertise to deliver state-of-the-art SaaS capabilities leveraging NLP, Generative AI, and reinforcement … or equivalent experience 5+ years of experience working with cross-functional software development teams Experience shipping and iterating on production-grade software components professionally and/or in the open-source community Ability to write robust, well tested, and well-designed code that frequently gets deployed to users Strong understanding of product development and navigating large codebases Located … in London/Paris and open to working in office Tech Stack: Python FastAPI Typescript + React Open source LLMs On premise deployments Benefits Currently Offered (likely to improve as company grows): 100% coverage for travel expenses Childcare support Min. 3 months fully paid parental leave 25 days holiday + bonus days for company closure Subsidised lunches More ❯

Founded in 2023, the company has already secured significant early-stage funding, including a $10m Seed round in 2024. The founding team is composed of ex-Palantir and ex-Open AI leaders. They combine deep sector knowledge with cutting-edge design and software engineering expertise to deliver state-of-the-art SaaS capabilities leveraging NLP, Generative AI, and reinforcement … or equivalent experience 5+ years of experience working with cross-functional software development teams Experience shipping and iterating on production-grade software components professionally and/or in the open-source community Ability to write robust, well tested, and well-designed code that frequently gets deployed to users Strong understanding of product development and navigating large codebases Located … in London/Paris and open to working in office Tech Stack: Python FastAPI Typescript + React Open source LLMs On premise deployments Benefits Currently Offered (likely to improve as company grows): 100% coverage for travel expenses Childcare support Min. 3 months fully paid parental leave 25 days holiday + bonus days for company closure Subsidised lunches More ❯

Overview stackable - who are we? Stackable is an innovative technology company focused on delivering cutting-edge, opensource Big Data solutions for data lakehouses, data mesh, event processing and AI. We specialise in designing, deploying, and managing scalable datainfrastructures that empower businesses to harness the power of data effectively. Our core product, the Stackable Data Platform, enables companies of all sizes … mission at stackable: We are looking for a skilled Solutions Architect with a strong background in Big Data to join our team. The ideal candidate will have expertise in open source Big Data technologies and Kubernetes and DevOps practices . This role will be instrumental in designing, implementing, and optimizing cloud-based and on-premise data solutions for … Working either remote or onsite with our customers from UK A technology-focused start-up culture Choice of development tools The chance to shape a sustainable and future-oriented open source product Our engineering mindset: our aim is make bring architectures and software available in the most automated, maintainable and robust way possible! Diverse training opportunities and social More ❯

healthcare assessments are understood and utilized. Founded by health economics academics and backed by leading investors, we are building a novel, data-driven platform that will become the definitive source of intelligence for Health Technology Assessment (HTA) and Market Access (MA) reports globally. This is a rare opportunity to get in on the ground floor and play a pivotal … to support our evolving data schema. LLM Experimentation & Deployment: Rapidly experiment with and implement LLM-based solutions (from prompt engineering with state-of-the-art APIs to fine-tuning open-source models) to extract, consolidate, and categorise key variables from complex text. Human-in-the-Loop System Design: Design and implement the frameworks and tools that facilitate efficient … web-scraping with BeautifulSoup, Scrapy, or Selenium), data wrangling, model development, and evaluation. Demonstrable experience experimenting with and deploying applications using Large Language Models (e.g., via OpenAI, Anthropic, or open-source models via Hugging Face). Experience building and maintaining data pipelines and a comfort with software engineering best practices (version control, CI/CD, testing). Exceptional More ❯

emissions. We will also have a terminal experience to allow analysts to explore the carbon targets. What's in it for you? Work with a variety of Bloomberg and open-source technologies including Python, Typescript, Argo, Docker, Redis, Comdb2, Postgres, Pytest, MyPy, Docker, Humio, and other proprietary technologies that will help get the job done Partner closely with … development and especially in the technical stack above Enthusiasm to lead, share new ideas, drive processes and technology frameworks with the team Eagerness for working with third-party/open-source technologies Experience with containerization and CI/CD solutions (e.g. Docker, Devise) Experience working with Pandas, Quantitative Analysis Experience working within the Scrum model Enthusiasm to lead More ❯

builds and maintains numerous vital infrastructure services ranging from configuration management and orchestration frameworks to DNS and monitoring infrastructure. MSE uses an infrastructure-as-code approach in conjunction with open-source tools to ensure a scalable and reliable environment in which to operate. The group's responsibilities include helping to advise application teams on best practices for architecting … across tens of thousands of hosts. As part of MSE, you will have the opportunity to work alongside engineers focused on automation and reliability while being exposed to many open-source tools and being empowered to contribute back to the OSS community. We have unique and interesting challenges to solve: you will be asked to help build a More ❯

Java Software Developer - Java - Mostly Remote working Are you a Software Developer with a passion for open-source technology, such as Java, to work on innovative real-time solutions? We're looking for a Software Engineer with strong Java & SQL skills to join our growing client in Warrington! The role can be mostly remote, with 1 day a … be a bonus, as would be some DevOps knowledge They are a dynamic software team of six, focused on developing cutting-edge solutions & you'll work with the latest open-source technologies to create scalable, high-performance applications that power real-time solutions. Hands-On Development - Work on new projects from the ground up, using technologies like Java More ❯

the core C++ codec integration layers. Integration work for other compression solutions, such as VC6 and point cloud compression, into different video editing and creation applications. Engaging with the open-source community to contribute changes upstream to video player open-source projects and assist with their integration of LCEVC. Development activity planning, including sprint planning and More ❯

the core C++ codec integration layers. Integration work for other compression solutions, such as VC6 and point cloud compression, into different video editing and creation applications. Engaging with the open-source community to contribute changes upstream to video player open-source projects and assist with their integration of LCEVC. Development activity planning, including sprint planning and More ❯

use cases Prototype multi-agent systems, reasoning engines, and knowledge-graph integrations Implement and fine-tune models for language understanding, decision automation, and data insight generation Evaluate and integrate open-source and commercial AI frameworks into orchestration workflows Ensure AI solutions are explainable, auditable, and compliant with public- sector governance standards Advise on AI strategy, ethical use, and … Understanding of ethical AI, governance frameworks, and public-sector AI standards Familiarity with BPMN/DMN, process orchestration, or workflow automation platforms Experience contributing to AI research, publications, or open-source projects Holds UK security clearance (SC, DV, eDV) What They Offer A company option scheme gives their employees a stake in the organisation theyre building meaningful missions. More ❯

use cases Prototype multi-agent systems, reasoning engines, and knowledge-graph integrations Implement and fine-tune models for language understanding, decision automation, and data insight generation Evaluate and integrate open-source and commercial AI frameworks into orchestration workflows Ensure AI solutions are explainable, auditable, and compliant with public- sector governance standards Advise on AI strategy, ethical use, and … Understanding of ethical AI, governance frameworks, and public-sector AI standards Familiarity with BPMN/DMN, process orchestration, or workflow automation platforms Experience contributing to AI research, publications, or open-source projects Holds UK security clearance (SC, DV, eDV) What They Offer A company option scheme gives their employees a stake in the organisation theyre building meaningful missions. More ❯

use cases Prototype multi-agent systems, reasoning engines, and knowledge-graph integrations Implement and fine-tune models for language understanding, decision automation, and data insight generation Evaluate and integrate open-source and commercial AI frameworks into orchestration workflows Ensure AI solutions are explainable, auditable, and compliant with public- sector governance standards Advise on AI strategy, ethical use, and … Understanding of ethical AI, governance frameworks, and public-sector AI standards Familiarity with BPMN/DMN, process orchestration, or workflow automation platforms Experience contributing to AI research, publications, or open-source projects Holds UK security clearance (SC, DV, eDV) What They Offer A company option scheme gives their employees a stake in the organisation theyre building meaningful missions. More ❯

use cases Prototype multi-agent systems, reasoning engines, and knowledge-graph integrations Implement and fine-tune models for language understanding, decision automation, and data insight generation Evaluate and integrate open-source and commercial AI frameworks into orchestration workflows Ensure AI solutions are explainable, auditable, and compliant with public- sector governance standards Advise on AI strategy, ethical use, and … Understanding of ethical AI, governance frameworks, and public-sector AI standards Familiarity with BPMN/DMN, process orchestration, or workflow automation platforms Experience contributing to AI research, publications, or open-source projects Holds UK security clearance (SC, DV, eDV) What They Offer A company option scheme gives their employees a stake in the organisation they’re building meaningful More ❯

use cases Prototype multi-agent systems, reasoning engines, and knowledge-graph integrations Implement and fine-tune models for language understanding, decision automation, and data insight generation Evaluate and integrate open-source and commercial AI frameworks into orchestration workflows Ensure AI solutions are explainable, auditable, and compliant with public- sector governance standards Advise on AI strategy, ethical use, and … Understanding of ethical AI, governance frameworks, and public-sector AI standards Familiarity with BPMN/DMN, process orchestration, or workflow automation platforms Experience contributing to AI research, publications, or open-source projects Holds UK security clearance (SC, DV, eDV) What They Offer A company option scheme gives their employees a stake in the organisation they’re building meaningful More ❯

use cases Prototype multi-agent systems, reasoning engines, and knowledge-graph integrations Implement and fine-tune models for language understanding, decision automation, and data insight generation Evaluate and integrate open-source and commercial AI frameworks into orchestration workflows Ensure AI solutions are explainable, auditable, and compliant with public- sector governance standards Advise on AI strategy, ethical use, and … Understanding of ethical AI, governance frameworks, and public-sector AI standards Familiarity with BPMN/DMN, process orchestration, or workflow automation platforms Experience contributing to AI research, publications, or open-source projects Holds UK security clearance (SC, DV, eDV) What They Offer A company option scheme gives their employees a stake in the organisation they’re building meaningful More ❯

high availability architectures, load balancing and disaster recovery. • Experience of setting up CI/CD pipelines including production deployments • Configuration management tooling. • Package/dependency management solutions. • Commercial or open source observability tooling. • Comfortable provisioning platforms through IaC tools. • Robust understanding of on-premise infrastructure. • The ability to apply DevOps tools and practices to on-premise workloads. • Proficient … received, we regret to inform you that we are unable to provide detailed feedback to candidates who have not been shortlisted (for further consideration). Job Segment: Cloud, Sustainability, Open Source, Bank, Banking, Technology, Energy, Finance More ❯