1 to 25 of 214 Open Source Jobs in the UK

Agentic AI Engineer Kyndryl Data & AI

Hiring Organisation
Kyndryl
Location
South East, United Kingdom
Employment Type
Permanent
possible and unleash your potential. Why this role matters Youll be part of a fast-moving group shaping Kyndryls Agentic AI Framework an open, modular system that connects data pipelines, LLMs, reasoning engines and orchestration layers to power autonomous solutions across industries. Were not just imagining the future … from proof-of-concepts to AI-native operations Collaborative innovation: Pair with data scientists, architects and platform engineers to deliver integrated, client-ready systems Open-source mindset: Contribute to the evolution of our Agentic AI framework and the wider AI ecosystem What youll do Design and build agentic ...

Embedded Software Engineer

Hiring Organisation
KO2 Embedded Recruitment Solutions LTD
Location
Manchester, North West, United Kingdom
Employment Type
Permanent
Salary
£60,000
Automation. What You'll Need Strong proficiency in C Experience with at least one of the following: C++, Python, Rust, or Java Familiarity with open-source technology stacks Understanding of modern software development practices Solid experience working in Linux environments About the Team You'll join a passionate … role, you'll work across the full software development lifecycle - from concept and design through to implementation and deployment. Experience with embedded systems and open-source technologies will give your application an edge. Who We're Looking For This role will suit Software Engineers who: Are genuinely enthusiastic ...

Storage Engineer

Hiring Organisation
Ncounter LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
that support critical research and trading workloads. This role offers the opportunity to work on innovative, high-impact projects at the intersection of cloud, open-source, and high-performance computing. The Role: Design and develop scalable data orchestration services across cloud and on-prem environments. Create unified platform … abstractions to streamline data access across diverse storage technologies. Integrate open-source and vendor storage solutions through rapid prototyping and engineering. Optimise storage performance and efficiency across large-scale infrastructure. Collaborate across engineering functions to deliver robust end-to-end platform capabilities. Own operational responsibilities: troubleshooting, performance tuning ...

Shopify Developer

Hiring Organisation
Commercial
Location
Kettering, Northamptonshire, East Midlands, United Kingdom
Employment Type
Permanent
Salary
£50,000
performing ecommerce experiences. Key Responsibilities Shopify Development Maintain, optimise, and enhance existing Shopify stores. Build new websites, storefronts, and landing pages using Shopify and open-source frameworks. Custom-code Shopify themes, templates, and features using Liquid. Implement and configure third-party integrations, apps, and payment gateways. Ensure fast … Diagnose and resolve technical issues across all company websites. Web Development Build and maintain in-house websites using HTML, CSS, JavaScript, PHP, or similar open-source technologies. Develop custom web functionality and integrations where required. Improve site architecture, navigation, and overall user experience. Test and deploy updates ...

OSINT Specialist

Hiring Organisation
Tadaweb
Location
Poole, England, United Kingdom
mind with the right information at the right time. We are a scale-up technology company that provides an operating system that makes OSINT (Open Source Intelligence) investigations more effective and efficient. Tadaweb is known within the industry for its "nothing is impossible" attitude and family-first culture … users, their bosses and key customer stakeholders. You will deliver training sessions on our platform and mentor our customers to deliver value in open-source data collection and analysis. You will be problem solving daily and helping customers with use cases that push what is technically possible. ...

Java Software Engineer

Hiring Organisation
Accenture
Location
England, United Kingdom
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 … 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. ...

Senior ML Research Engineer

Hiring Organisation
microTECH Global LTD
Location
Egham, England, United Kingdom
optimization to runtime integration of AI models on-device. Toolchain Evaluation: Compare deployment toolchains and runtimes for latency, memory, and accuracy trade-offs. Open-Source Contribution: Enhance open-source libraries by adding new features and improving capabilities. Experimentation & Analysis: Conduct rigorous experiments and statistical analysis ...

Data & AI Senior Consultants

Hiring Organisation
Staffworx Limited
Location
United Kingdom
Employment Type
Permanent, Work From Home
engineering, model selection, handling imbalanced data, choosing and interpreting metrics Experience with PyTorch or TensorFlow GenAI specific Hands on experience with LLM APIs or open source models such as Llama or Mistral Experience building RAG systems with vector databases such as FAISS, Pinecone or Weaviate Ability to evaluate … bash Experience with BI tools such as Looker or Tableau Prior consulting experience or leading client projects end to end Contributions to open source, conference talks or published papers that show your ability to share ideas and influence the wider community #DataAIConsultant #DataConsulting #AIConsultant #GenAIConsultant #HiringNow #DataScience #MachineLearning ...

Full Stack Engineer

Hiring Organisation
Higher - AI recruitment
Location
City of London, London, United Kingdom
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 … 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 ...

Full Stack Engineer

Hiring Organisation
Higher - AI recruitment
Location
London Area, United Kingdom
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 … 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 ...

Solution Architect – National Security

Hiring Organisation
Forward Role Secure
Location
Greater London, England, United Kingdom
digital services that support the UK’s national security mission. Our client delivers high-performance technology solutions for the UK Public Sector, using modern open-source tooling and operating within Agile and DevOps environments. This role is ideal for someone passionate about designing robust, scalable architectures and influencing … Required exposure You’ll have significant hands-on experience across several of the following areas: End-to-end technical and solution architecture design Modern open-source technologies Cloud platforms (AWS preferred) Security principles and best practice IAM, OAuth, Cognito, OIDC (highly beneficial) Containerisation and orchestration (Docker, Kubernetes) DevOps ...

Senior Software Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
Birmingham, West Midlands, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£65,000
office) Industry: Sustainable Technology/Data & Analytics Platforms The Opportunity I'm recruiting for a growing Birmingham-based tech company that's building open, scalable software used to power data-driven platforms in the sustainability and energy space. This is an exciting opportunity for a Senior Software Engineer … Working closely with Product, Design, and Data teams Projects include customer-facing dashboards, data ingestion services, internal tooling, and API-first platforms. Tech Stack (Open-Source) Backend: PHP (Laravel), Python Frontend: JavaScript, TypeScript, React APIs: REST, GraphQL Databases: PostgreSQL, MySQL, Redis Infrastructure: Linux, Docker, Kubernetes, CI/ ...

Senior Software Engineer

Hiring Organisation
Oscar Technology
Location
Hockley, Birmingham, West Midlands, England, United Kingdom
Employment Type
Full-Time
Salary
£55,000 - £65,000 per annum
office) Industry: Sustainable Technology/Data & Analytics Platforms The Opportunity I'm recruiting for a growing Birmingham-based tech company that's building open, scalable software used to power data-driven platforms in the sustainability and energy space. This is an exciting opportunity for a Senior Software Engineer … Working closely with Product, Design, and Data teams Projects include customer-facing dashboards, data ingestion services, internal tooling, and API-first platforms. Tech Stack (Open-Source) Backend: PHP (Laravel), Python Frontend: JavaScript, TypeScript, React APIs: REST, GraphQL Databases: PostgreSQL, MySQL, Redis Infrastructure: Linux, Docker, Kubernetes, CI/ ...

Software Developer

Hiring Organisation
Rentr
Location
Leamington Spa, Warwickshire, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
tools such as GitHub Copilot, Cursor, or Continue Exposure to DevOps , CI/CD pipelines, and automated deployment is a strong advantage Experience with open-source toolsets is a plus Using Linux as your daily driver OS is an added advantage What We Need From You (Our Must … REST APIs , microservices , and distributed systems Experience working with PostgreSQL Comfort using AI-assisted development tools (Copilot, Cursor, Continue, etc.) Bonus: familiarity with DevOps, open-source tools, and Linux environments Strong problem-solving ability and a proactive, ownership-driven mindset Curiosity and passion for building, learning, and growing ...

Mid-Level, DevOps Engineer- Azure

Hiring Organisation
European Bank for Reconstruction and Development
Location
United Kingdom, UK
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 … inform you that we are unable to provide detailed feedback to candidates who have not been shortlisted (for further consideration). Job Segment: Cloud, Open Source, Sustainability, Engineer, Banking, Technology, Energy, Engineering, Finance ...

Full Stack Software Developer - Java - Mostly remote working

Hiring Organisation
Circle Recruitment
Location
Warrington, Cheshire, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £60,000 per annum
Full Stack Software Developer - Java - Mostly remote working Are you a passionate Software Developer with a keen interest in open-source technology, particularly Java, who wants to work on innovative real-time solutions? We're seeking a Software Engineer with strong Java and SQL skills to join … would be some DevOps knowledge This dynamic software team of six is focussed 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 ...

Principal Go Engineer | Up to £180k + Bonus + Equity | Greenfield | London

Hiring Organisation
Maze
Location
City of London, London, United Kingdom
Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. They’re creating the world’s first open-source, AI-native "Thin Ledger" —set to replace legacy infrastructure at Tier 1 banks. We're looking for a Senior Engineer specialising … five-nines reliability Contribute to backend, DevOps, and CI/CD decision-making Embed AI into engineering workflows & ops Self-motivated, problem-solving mindset; open to non-traditional backgrounds. You should have: Expert backend skill ideally in Golang, or Rust, Zig or C. Deep expereince building distributed systems from ...

Principal Go Engineer | Up to £180k + Bonus + Equity | Greenfield | London

Hiring Organisation
Maze
Location
London Area, United Kingdom
Maze is partnering with a stealth-mode startup that's rebuilding core banking from the ground up. They’re creating the world’s first open-source, AI-native "Thin Ledger" —set to replace legacy infrastructure at Tier 1 banks. We're looking for a Senior Engineer specialising … five-nines reliability Contribute to backend, DevOps, and CI/CD decision-making Embed AI into engineering workflows & ops Self-motivated, problem-solving mindset; open to non-traditional backgrounds. You should have: Expert backend skill ideally in Golang, or Rust, Zig or C. Deep expereince building distributed systems from ...

Senior Software Engineer, C++

Hiring Organisation
Ripple
Location
London, England, United Kingdom
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 … 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 ...

Embedded Linux Software Engineer

Hiring Organisation
Platform Recruitment Limited
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent
Salary
£75,000
Embedded Linux Engineer : Porting the OS, integrating with ODM software Fixing build issues when moving to new platforms and applying patches to debug open-source software Researching technical growth Requirements: Highly experienced with embedded build systems, preferably buildroot, OpenWRT, or other WRT-Variants Experienced with CLANG and very … confident working with patches on open source software Strong understanding of network protocols Desirable skills for an Embedded Software Engineer: Experience developing Linux kernel modules and using the kernel build system Knowledge of the Wireless and Linux network stack Experience managing the process from a reference board ...

Embedded Linux Software Engineer

Hiring Organisation
Platform Recruitment
Location
Cambridge, England, United Kingdom
Embedded Linux Engineer : Porting the OS, integrating with ODM software Fixing build issues when moving to new platforms and applying patches to debug open-source software Researching technical growth Requirements: Highly experienced with embedded build systems, preferably buildroot, OpenWRT, or other WRT-Variants Experienced with CLANG and very … confident working with patches on open source software Strong understanding of network protocols Desirable skills for an Embedded Software Engineer: Experience developing Linux kernel modules and using the kernel build system Knowledge of the Wireless and Linux network stack Experience managing the process from a reference board ...

Compiler Engineer - LLVM / C++

Hiring Organisation
European Tech Recruit
Location
Cambridge, Cambridgeshire, UK
/C++ programming skills Passion for compiler development and low-level optimization Basic understanding of CPU architecture BSc/MSc in Computer Science preferred Open-source contributions and strong practical skills are a plus Keywords LLVM/C++/compiler optimization/xPU/CPU architecture/…/AI/open-source/R&D/CPU/High Performance Computing/Artificial Intelligence/Compiler/Compiler Engineer If you are interested in this Compiler Engineer position, please send a copy of your CV to ts@eu-recruit.com By applying to this role ...

Compiler Engineer - LLVM / C++

Hiring Organisation
European Tech Recruit
Location
Cambridge, England, United Kingdom
/C++ programming skills Passion for compiler development and low-level optimization Basic understanding of CPU architecture BSc/MSc in Computer Science preferred Open-source contributions and strong practical skills are a plus Keywords LLVM/C++/compiler optimization/xPU/CPU architecture/…/AI/open-source/R&D/CPU/High Performance Computing/Artificial Intelligence/Compiler/Compiler Engineer If you are interested in this Compiler Engineer position, please send a copy of your CV to ts@eu-recruit.com By applying to this role ...

Design Verification Engineer

Hiring Organisation
Platform Recruitment
Location
City of London, London, United Kingdom
supported in pushing the envelope alongside top pioneers in verification. Responsibilities Design and maintain robust testbenches and targeted tests using the organisation’s mixed open-source and proprietary verification environment. Develop and own comprehensive verification plans, ensuring coverage goals and test strategies are clear and defensible. Identify … resolve design defects efficiently. Oversee and refine the test infrastructure, including management of test suites, CI pipelines, and the improvement of both internal and open-source tooling. Requirements Strong debugging and analytical capability, able to isolate and resolve complex RTL and testbench issues efficiently. At least two years ...

Design Verification Engineer

Hiring Organisation
Platform Recruitment
Location
London Area, United Kingdom
supported in pushing the envelope alongside top pioneers in verification. Responsibilities Design and maintain robust testbenches and targeted tests using the organisation’s mixed open-source and proprietary verification environment. Develop and own comprehensive verification plans, ensuring coverage goals and test strategies are clear and defensible. Identify … resolve design defects efficiently. Oversee and refine the test infrastructure, including management of test suites, CI pipelines, and the improvement of both internal and open-source tooling. Requirements Strong debugging and analytical capability, able to isolate and resolve complex RTL and testbench issues efficiently. At least two years ...