1,076 to 1,100 of 1,250 Permanent Open Source Jobs

Member of Technical Staff – Product Engineering

Location
Witney, England, United Kingdom
personal memory, conflicting feedback, per-person permissions. Engine surfaces in chat and email. Requirements 2+ years of engineering experience, or equivalent depth from open source or your own projects Time at a fast-growing startup You've built products from scratch and shipped them to real users ...

Senior Technical Product Marketing Manager, Agent Identity & Auth (EMEA)

Location
Greater London, England, United Kingdom
Partner teams. Comfortable owning a stage: keynote presentations, analyst briefings, customer roundtables, and demo-heavy sessions energize you rather than intimidate you. Experience in open-source software, SaaS platforms, and enterprise go-to-market motions is strongly preferred. Familiarity with the AI connectivity landscape -including awareness of competing ...

Linux Engineer

Location
Greater London, England, United Kingdom
genuinely deep in a few. That might mean: Building the in-house tools and systemsthat make up our platform, or integratingmainstream (often open-source) technologies sothey feel native to our infrastructure Acting as one of the firm's Linuxexperts, and teaching other engineers specialistskills like systems debugging Automating ...

Member of Technical Staff – Security

Location
Witney, England, United Kingdom
review and response, including agents that red-team our own engines. Requirements 2+ years of security engineering experience, or equivalent depth from research, CTFs, open source or your own projects Time at a fast-growing startup You've designed and built security systems from scratch, not just audited ...

Account Executive (UK)

Location
Greater London, England, United Kingdom
real world, helping developers move from prototypes to production-ready AI agents that teams can rely on. We began as widely adopted open-source tools and have grown to also offer a platform for building, evaluating, deploying, and operating agents at scale. Today, LangChain, LangGraph, LangSmith, and Agent ...

AI AGENTS ENGINEER

Location
Manchester, England, United Kingdom
search systems, or knowledge retrieval. Experience with model governance, audit trails, release control, permissions, or safety‐sensitive AI workflows. Familiarity with OpenAI, Anthropic, Gemini, open‐source LLM/VLM stacks, LangGraph‐style orchestration, or similar agent frameworks. The candidate should understand enough vision and inspection context to collaborate ...

Project Engineer

Location
St Athan, Wales, United Kingdom
hand operational experience. Weunderstand the challenges, have theknow-howto overcome them, and work together to succeed.Operating for over a decade, we delivercutting-edgecapabilities from open-source intelligence (OSINT) to uncrewed surface vessels and high-altitude one-way effectors that deliver true interoperability across all security levels. As Project ...

Lead Data Scientist (Safety)

Location
Greater London, England, United Kingdom
translate complex challenges into rigorous scientific frameworks Advancing Faculty’s industry leadership by innovating novel evaluation methodologies, speaking at key forums, or publishing open-source research Establishing and upholding scientific methodology, rigour, and engineering best practices across the full project lifecycle Who we're looking for: You bring ...

Member of Technical Staff

Location
Greater London, England, United Kingdom
researcher with experience in generative modeling. You have led or worked on notable machine learning projects, as documented by your contributions to widely used open source libraries, significant product launches or high impact publications, e.g. at NeurIPS, ICML, ICLR or Nature venues. You have a proven track record ...

Associate, National Security

Location
Greater London, England, United Kingdom
successful delivery and implementation of bespoke AI solutions Working side-by-side with key stakeholders to understand critical mission challenges and user needs Conducting open-source analysis to support the development of cutting-edge AI tools Translating complex operational requirements into clear user stories for delivery and engineering ...

Senior Forensics Associate EMEA

Location
Greater London, England, United Kingdom
other experienced members. Proficient in the use of EnCase, AccessData Forensic Toolkit, XWays, Cellebrite UFED and Physical Analyzer, Cellebrite Inspector (formerly Blacklight), Axiom or open-source forensic tools Strong mastery of data collection, preservation, and chain of custody principles and procedures An understanding of file systems, computer hardware ...

Senior Director, Sales Engineering (EMEA)

Location
Reading, England, United Kingdom
manage risk and eliminate threats across the entire threat landscape from apps to the cloud to traditional infrastructure to the dark web. We foster open source communities and cutting‐edge research‐using these insights to optimize our products and arm the global security community with the latest ...

Senior Point Cloud Specialist

Location
Greater London, England, United Kingdom
vehicles, robotics, industrial automation, transportation, surveying/geomatics or other mission‐critical infrastructure environments would be a bonus, as would a strong publication record, open‐source contributions or other recognised technical work in LiDAR and 3D processing. Don’t worry if you don’t tick every box. ...

Enterprise Account Executive - GridGain - UK - London

Location
Greater London, England, United Kingdom
complex sales cycles 7+ years’ database/data management, DBaaS or cloud sales experience Background in selling enterprise cloud database solutions preferred Experience selling open source software solutions is preferred Proactive and optimistic spirit with strong interpersonal communication skills Demonstrated ability to effectively communicate the business value ...

Staff Team Lead - System Software

Location
Cambridge, England, United Kingdom
configuring, building and testing Linux-based systems using tools such as Yocto (preferred), Buildroot, Bazel or Blaze Good understanding of upstream contribution processes for open-source projects Experience in leading and developing other engineers Effective communicator and ability to collaborate well within and across teams “Nice To Have ...

Specialist SA TechLead, WWSO Startups (AWS)

Location
Greater London, England, United Kingdom
Architect, or a similar cloud certification Startup background and experience at a VC or PE-backed firm in a Technical Executive capacity. Familiarity with open-source software and agentic tooling used by Startups and working knowledge of software development tools and methodologies common to Startups. Strong data-based ...

Developer

Location
United Kingdom
others. Our development team is currently 20+ people from a wide range of backgrounds. Our Playbook setting out our approach to development is open source, so take a look at: This is a hands‐on software development role. You’ll build web applications and services in multidisciplinary project ...

PhD Engineering Internship 2027

Location
Boston, England, United Kingdom
quantum control and decoding systems You have experience with scientific computing, quantum circuit simulation or QEC simulation tools You have contributed to academic publications, open‐source software or collaborative research projects Important notes You must be legally authorized to work in the United States for the duration ...

PhD Research Internship 2027

Location
Boston, England, United Kingdom
fault-tolerant quantum computing You have experience with scientific computing, quantum circuit simulation or QEC simulation tools You have contributed to academic publications, open-source software or collaborative research projects You have experience with hardware-software or compiler-hardware co-design You understand the latency, bandwidth or power ...

Software Engineer II - EDR Workflows - Security

Location
United Kingdom
make assumptions, and look for ways to improve both product and engineering processes. Bonus Points: Experience and interest in contributing or developing open-source projects Knowledge of the Elastic stack and solutions Experience in cybersecurity and forensics. Additional Information - We Take Care of Our People: As a distributed ...

AI Technical Product Manager (QVAC) (100% remote)

Location
Greater London, England, United Kingdom
questions early, and incorporating feedback. Familiarity with product analytics, user research, and iterative software development. Preferred: Experience with local AI, on‐device inference, or open‐source models. Experience building AI assistants, conversational interfaces, or multimodal features. Familiarity with desktop or mobile product development. An understanding of peer ...

Senior iOS Engineer

Location
Greater London, England, United Kingdom
work Go the extra mile to add the awesome sprinkles What We Look For Experience in continuous integration setup and automation Taken part in open-source projects Experience with backend technologies Experience with The Composable Architecture and SwiftUI Experience with Combine and async/await Experience with ...

Plasma Control Engineer

Location
United Kingdom
complete an online Baseline Personnel Security Standard (BPSS) , including The Disclosure & Barring Service (DBS) checks for criminal convictions and possibly a search of open source data. Role Are you looking for an exciting opportunity to make a difference? Join our team and contribute to the future of fusion ...

Team Lead, Android Core Product - Reading, United Kingdom

Location
Reading, England, United Kingdom
spec asks for Self-drive to improve the app and codebase beyond what's outlined in the spec Bonus Building, maintaining, or contributing to open source Android projects Experience with iOS, Web, or NodeJS Technologies we use Several technical interviews plus an assessment on a real codebase. ...

Team Lead, Android Core Product - Birmingham, United Kingdom

Location
Birmingham, England, United Kingdom
spec asks for Self-drive to improve the app and codebase beyond what's outlined in the spec Bonus Building, maintaining, or contributing to open source Android projects Experience with iOS, Web, or NodeJS Technologies we use Several technical interviews plus an assessment on a real codebase. ...