1 to 25 of 417 Remote Open Source Jobs in the UK

As a member of the Automotive Software Ecosystem team you will have the opportunity to build upon your existing background, knowledge and expertise of using software development tools, open-source and commercial ecosystem projects, e.g. Virtual Platform technologies, Linux, Android, and Automotive open-source projects. This position will work with Arm's ecosystem partners to enable … both commercial and open-source implementations and optimizations of key software system components to drive the development of extraordinary system software for ARM based hardware and software platforms catering to the automotive segment. This system software will serve as a reference for futuristic ARM based automotive central compute server technology. We seek software developers who are strongly interested … other Arm lines of business to leverage use-cases, sample applications, enablement for Automotive. Ensure data privacy, security, and ethical considerations in all data initiatives. Required Experience: Experience in open-source or commercial firmware. Experience in Linux or Android Application development. Experience in developing software written preferably in C. Expertise in debugging and optimizing complex software systems. Expertise More ❯

AI Engineer Salary: £65,000 £80,000 Location: Fully remote We are seeking an AI Engineer with a strong open-source software background to join a fast-growing scale-up. They offer fully remote employment and have a team of engineers dedicated to developing AI-powered search and Retrieval-Augmented Generation (RAG) pipelines within DataStax-based architecture. This … role is perfect for someone with expertise in Open-source, API development, fine-tuning LLMs, and integrating AI into scalable applications. If you thrive in an AI-driven development environment, enjoy working on cutting-edge retrieval models, and have a passion for optimizing LLM performance, we want to hear from you. Key Responsibilities: Develop and maintain scalable RESTful … GraphQL APIs to interact with LLMs and AI-powered search systems. Design and implement Retrieval-Augmented Generation (RAG) pipelines using open-source tools like LangChain, Langflow, and DataStax Vector Search. Fine-tune LLMs (Hugging Face, OpenAI, Cohere, or similar) to improve response quality and domain-specific performance. Optimize embedding models for better semantic search and document retrieval. Integrate More ❯

Role: Head of Partnerships Location: London or Madrid Language: English WFH policy: Hybrid, with international travel Industry: Computer Vision, AI, Open Source Product: Open-source AI models & enterprise platform Size and functions of local team: Leadership present in both Madrid and London Partnerships team includes 1 technical and 1 operational staff Function currently reports into VP … Represent the business at major ecosystem events and conferences Manage and grow the existing partnerships team Unique about the company: Massive inbound demand from global tech players due to open-source dominance Partnerships are driven by product adoption, not cold outreach Strong technical footprint across hardware, ML, and deployment partners Real impact on product development, integrations, and commercial … partnerships Technical acumen to lead integrations and influence product Experience managing cross-functional delivery (technical and business) Management of small teams International partnership experience Nice to haves: Background at open-source or developer-first companies Familiarity with companies like Hugging Face, Mistral, Databricks, Anaconda Prior co-marketing or GTM collaboration experience Exposure to OSS licensing and compliance frameworks More ❯

Role: Head of Partnerships Location: London or Madrid Language: English WFH policy: Hybrid, with international travel Industry: Computer Vision, AI, Open Source Product: Open-source AI models & enterprise platform Size and functions of local team: Leadership present in both Madrid and London Partnerships team includes 1 technical and 1 operational staff Function currently reports into VP … Represent the business at major ecosystem events and conferences Manage and grow the existing partnerships team Unique about the company: Massive inbound demand from global tech players due to open-source dominance Partnerships are driven by product adoption, not cold outreach Strong technical footprint across hardware, ML, and deployment partners Real impact on product development, integrations, and commercial … partnerships Technical acumen to lead integrations and influence product Experience managing cross-functional delivery (technical and business) Management of small teams International partnership experience Nice to haves: Background at open-source or developer-first companies Familiarity with companies like Hugging Face, Mistral, Databricks, Anaconda Prior co-marketing or GTM collaboration experience Exposure to OSS licensing and compliance frameworks More ❯

value. At Syntasso, you'll be part of a small, expert team driving a global shift in how platform engineering is done. Your ideas will directly influence Kratix, our open source framework, and our commercial product, Syntasso Kratix Enterprise. By joining us, you won't just build technology, you'll help define the standards of a new discipline. … empower, not constrain. We started the company after seeing too many teams struggle to build internal platforms that developers actually enjoy using. That's why we created Kratix: an open source framework that helps organisations design, deliver, and scale their platforms with confidence. One early adopter cut platform onboarding from weeks to hours using Kratix, freeing engineers to … users in mind. You'll find us pairing on problems, running regular learning sessions, and sharing ideas that often spark new improvements for Kratix or contributions back to the open source ecosystem we care about so deeply. You'll also be learning from experienced leaders who've built and scaled successful platform engineering businesses before. Our leadership team More ❯

approach to our work that has retained many of the best elements of start-up mentality whilst also recognising the need for mature delivery and execution. We work with open-source technologies including Linux KVM, QEMU, Open vSwitch and Libvirt. Your Role Design, develop, and maintain AHV features, often interacting with Open Source communities. Constantly … internals and concepts of distributed systems. Familiarity with x86 architecture, virtualisation, and/or storage and network management. Familiarity with KVM and QEMU is preferred. Experience in interaction with open source communities is preferred. Work Arrangement Hybrid: This role operates in a hybrid capacity, blending the benefits of remote work with the advantages of in-person collaboration. For More ❯

privacy, and regulatory standards (e.g., GDPR, SOC 2, HIPAA). Proficiency in designing systems with robust security measures and ensuring adherence to organizational and industry compliance requirements. Contribute to open source software, engage with maintainers, and actively participate in community curation. GitHub values Customer-obsessed Ship to learn Growth mindset Own the outcome Better together Diverse and inclusive … energy Deliver success Who We Are GitHub is the world's leading AI powered developer platform with 150 million developers and counting. We're also home to the biggest open source community on earth (and 99% of the world's software has open source code in its DNA). Many of the apps and programs you More ❯

skills, with the ability to guide small, inexperienced client teams in a collaborative yet authoritative manner. You will play a key role in shaping and delivering solutions built on open-source technologies, data pipelines, vector stores, and Generative AI (GenAI) capabilities, with an emphasis on integrating Large Language Models (LLMs). Key Responsibilities Leadership & Collaboration: Lead and mentor … non-technical audiences. Build strong relationships with client stakeholders, ensuring alignment on objectives and expectations. Technical Delivery: Design, implement, and document end-to-end data and GenAI solutions using open-source and cloud-based components. Develop and maintain data pipelines, vector databases, and LLM integrations. Configure and optimize solutions on Microsoft Azure Cloud. Ensure adherence to best practices … Required Skills & Experience Proven ability to lead small technical or client teams. Excellent communication and presentation skills. Strong team player with a collaborative, mentoring mindset. Hands-on experience with open-source technologies across front-end and back-end systems. Proficiency in data pipelines, vector stores, and Generative AI/LLM implementations. Working knowledge of Microsoft Azure Cloud services 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 ❯

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 ❯

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 ❯

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 ❯

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 ❯

fundamental human right and the 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 service globally, and has since … structure flat to keep moving 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 ! Role overview As a fullstack cross-platform Senior Android Engineer, you'll play a pivotal role in developing Proton Pass using Jetpack Compose and Rust. … meetings Work that Matters: Proton is a community-first organisation, 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 do (read more about our More ❯

production environments. Proven hands-on experience with GCP (Google Cloud Platform) . Deep understanding of CI/CD pipelines - GitLab CI, Argo, or Flux. Experience with HashiCorp Vault and open-source tooling. Background in automation, observability, and platform reliability . Excellent problem-solving skills and a collaborative, pragmatic mindset. THE DETAILS Day rate: £550-£650/day (Outside … production environments. Proven hands-on experience with GCP (Google Cloud Platform). Deep understanding of CI/CD pipelines - GitLab CI, Argo, or Flux. Experience with HashiCorp Vault and open-source tooling. Background in automation, observability, and platform reliability. Excellent problem-solving skills and a collaborative, pragmatic mindset. THE DETAILS Day rate: £550-£650/day (Outside IR35 More ❯

and producing engaging visual content. Key Responsibilities Web Development & Shopify Maintain, optimise, and further develop existing Shopify stores. Build new websites and landing pages using Shopify and/or open-source frameworks. Custom-code Shopify themes, templates, and functionality as needed. Implement third-party integrations, apps, and payment gateways. Ensure site performance, security, and mobile optimisation. Troubleshoot technical … conversions, and online branding. Monitor website analytics, reporting on performance and identifying opportunities. Skills & Experience Strong experience with Shopify development including Liquid, theme customisation, and app integration. Proficiency in open-source coding (HTML, CSS, JavaScript, PHP, or similar). Ability to manage and update in-house websites and build new sites from scratch. Marketing or creative experience, particularly More ❯

and producing engaging visual content. Key Responsibilities Web Development & Shopify Maintain, optimise, and further develop existing Shopify stores. Build new websites and landing pages using Shopify and/or open-source frameworks. Custom-code Shopify themes, templates, and functionality as needed. Implement third-party integrations, apps, and payment gateways. Ensure site performance, security, and mobile optimisation. Troubleshoot technical … conversions, and online branding. Monitor website analytics, reporting on performance and identifying opportunities. Skills & Experience Strong experience with Shopify development including Liquid, theme customisation, and app integration. Proficiency in open-source coding (HTML, CSS, JavaScript, PHP, or similar). Ability to manage and update in-house websites and build new sites from scratch. Marketing or creative experience, particularly More ❯

work ensures our models are not only intelligent, but also safe, trustworthy, and impactful at scale. What You'll Do Fine-tune & adapt - Use LoRA/QLoRA to optimize open-source models (LLaMA, Mistral, Gemma) Engineer prompts & curates data - Craft prompts and datasets that reflect tone, brand voice, and safety. Evaluate models - Build metrics pipelines for perplexity, toxicity … in algorithms, data structures, and clean code practices. Nice to Have Prior work in text generation, moderation, or personalization. Experience with RLHF or reinforcement learning in LLMs. Contributions to open-source ML projects. What You'll Get Flat structure & real ownership Full involvement in direction and consensus decision making Flexibility in work arrangement High-impact role with visibility More ❯