1,801 to 1,825 of 2,323 Open Source Jobs in the UK

Founding Engineer – Systems and Safety Engineering

Location
Salisbury, England, United Kingdom
under our 15kg target. Regulatory Pathfinding: You will support the generation of the Operational Authorisation from the CAA, helping us move from the A3 Open Category into the Specific Category The Safety Case: You will lead the safety assessment process which will lean on aspects of ARP4761, helping … SORA Methodology, CAA and overseas drone aircraft regulations Aeronautical engineering background Experience in flight testing of piloted or UAV systems Familiarity with commercial/open source UAV flight controllers and firmware. What you'll get Significant Equity – as a founding team member, you will own a significant stake ...

Senior UX Designer – Generative AI

Location
United Kingdom
Translate guardrails and human‐in‐the‐loop checkpoints defined by policy/technical leads into clear, usable interface patterns (e.g. confidence indicators, source citations, escalation flows) — an execution and craft role, not a policy‐setting one. Prototyping & Testing Produce wireframes, prototypes, and high‐fidelity designs (e.g. in Figma … including participation in service assessments Familiarity with GOV.UK Service Standard expectations Experience designing human‐in‐the‐loop or escalation workflows in regulated Exposure to open‐source design systems or communities Diversity and Inclusion At Scrumconnect Consulting, we believe that diversity drives innovation and better outcomes. We are committed ...

Senior Crypto Threat Analyst - Sanctions

Location
Greater London, England, United Kingdom
What you will achieve in the first 6 months: Have a thorough understanding of Elliptic's monitoring approach, our coverage framework, monitoring cadence and source-of-truth references. Contribute to external-facing research output on sanctioned entities or emerging threats, such as a blog post, research report, or client … verbal communication skills, with a track record of producing high-quality, stakeholder-ready outputs independently and to deadline. Proficiency with blockchain analytics tools, open-source intelligence (OSINT), corporate registries, and adverse media sources. AI fluency is essential for this role. You must be able to demonstrate your ability ...

Enterprise Account Executive - South Africa

Hiring Organisation
DataBricks
Location
London, UK
Employment Type
Full-time
track record of closing and exceeding quota in consumption based business (SaaS, PaaS, IaaS).Experience navigating procurement frameworks and mechanismsBackground in Cloud software, open source technology, or the Data and AI spaceExperience driving adoption of usage-based SaaS services and co-selling with AWS, Azure or Google CloudAbility … mental ability, political affiliation, race, religion, sexual orientation, socio-economic status, veteran status, and other protected characteristics. ComplianceIf access to export-controlled technology or source code is required for performance of job duties, it is within Employer's discretion whether to apply for a U.S. government license for such ...

Enterprise Account Executive - South Africa

Location
Greater London, England, United Kingdom
record of closing and exceeding quota in consumption based business (SaaS, PaaS, IaaS). Experience navigating procurement frameworks and mechanisms Background in Cloud software, open source technology, or the Data and AI space Experience driving adoption of usage-based SaaS services and co-selling with AWS, Azure … ability, political affiliation, race, religion, sexual orientation, socio-economic status, veteran status, and other protected characteristics. Compliance If access to export-controlled technology or source code is required for performance of job duties, it is within Employer's discretion whether to apply for a U.S. government license for such ...

Software Engineer II - Frontend (React/TypeScript)

Location
Greater London, England, United Kingdom
JR102658# **Welcome to the Agentic Commerce Era**## At Commerce, our mission is to empower businesses to innovate, grow, and thrive with our open, AI-driven commerce ecosystem. As the parent company of BigCommerce, Feedonomics, and Makeswift, we connect the tools and systems that power growth, enabling businesses … building tools, testing practices, and performance optimisations* Ensure technical decisions support our goals of quality, performance, reliability, and security* Work with and contribute to open source codebases, including evaluating, extending, and maintaining shared libraries and tools where appropriate**Who You Are*** You have at least 3 years ...

AI Roku Developer

Location
Greater London, England, United Kingdom
gates for high-risk, irreversible, security-sensitive, or release-related actions. Operate all agentic tooling within BritBox-approved accounts and data-handling boundaries, ensuring source code, content feeds, credentials, and commercially sensitive material are handled in accordance with BritBox confidentiality and AI usage policies. Maintain traceable, auditable evidence … Strong written communication and technical documentation skills. Willingness to provide evidence of agent-led software delivery through a portfolio example, redacted execution records, an open-source project, a live demonstration, or a paid practical assessment. Candidate evidence should demonstrate agents completing meaningful implementation work, validating their outputs, responding ...

Senior Python Engineer: MongoDB & Multi-Cloud Deployments

Location
Greater London, England, United Kingdom
using Python and Juju. You will deploy and operate MongoDB clusters across multi‐cloud and on‐prem environments and contribute to a high‐impact, open source‐oriented product. You are a proficient Python programmer with MongoDB operations experience, and you understand modern deployment automation or Linux administration. #J ...

Senior Java Full-Stack Engineer | Hybrid Cloud

Location
Cheltenham, England, United Kingdom
Senior Full Stack Software Engineer focused on Java, TypeScript, JavaScript and React. Join a Central Government team and contribute to bespoke software solutions using open-source tools, while collaborating across secure environments and client engagements. The role supports a hybrid working model with regular client meetings and site ...

Senior Software Engineer - Secure Sandbox Runtime (Remote)

Location
Greater London, England, United Kingdom
engineer to lead secure, isolated runtime environments (sandboxes) and production systems at scale. You will drive architecture across teams, mentor engineers, and collaborate with open source communities from a remote-first setting. The role emphasizes security boundaries, tooling for developers, and a strong user-centric approach, with international ...

Python Software Developer - Automation & Digital Ops

Location
Greater London, England, United Kingdom
operational processes and build scalable Python services. You’ll join the Digital Operations Teams and work with CI/CD tools, agile practices, and open-source software to transform Vodafone’s Digital Telco. From a role nestled in Network Operations Data Science & Software Development, you’ll develop code ...

Senior Full-Stack Engineer, Web3 Platform

Location
Southampton, England, United Kingdom
scale enterprise‐grade web3 platforms, collaborating with Design and Product Management to deliver features for Kaleido’s asset platform. You will contribute to the open‐source Hyperledger Firefly community and work with Kubernetes operators to power scalable SaaS microservices across cloud providers. The role emphasizes ...

Senior Kubernetes Platform Engineer – Control Plane

Location
Greater London, England, United Kingdom
candidate will possess strong programming skills in Go and Python, alongside experience with Kubernetes internals. A collaborative mindset and a desire to contribute to open source projects will be crucial in this vibrant engineering environment. #J-18808-Ljbffr ...

Senior Solutions Engineer – Data & AI Platform (London)

Location
Greater London, England, United Kingdom
solves their hardest problems. You will run PoCs, meet technical buyers across data engineering, ML, and Generative AI, and integrate with their cloud and open‐source stack. This role reports to the Manager, Field Engineering, and requires commuting to London with ~20-30% travel. #J-18808-Ljbffr ...

Senior Solution Architect - Cloud-Native & Security Lead

Location
Greater London, England, United Kingdom
Safety sector, partnering with government operational teams to solve complex, real-world challenges with direct frontline impact. You will shape cloud-native architectures using open source technologies, Agile and DevSecOps practices, and provide architectural direction across multiple engagements while mentoring engineers and aligning delivery with #J-18808-Ljbffr ...

Python Machine Learning Engineer - Core ML/AI Tooling Team - Ultra-Large Data Analytics

Hiring Organisation
Stanford Black
Location
London, UK
Employment Type
Full-time
RoleImagine building the bleeding edge, data-driven Artificial Intelligence and Machine Learning systems that will revolutionise your company's success using the latest in Open Source tooling. That's what a global FinTech powerhouse is throwing huge funding behind in a multi-year initiative, by building a brand ...

Software Engineer

Hiring Organisation
Tiro Partners
Location
Staines, Surrey, United Kingdom
Employment Type
Permanent
Salary
£100000 - £160000/annum Benefits
particular number of years. Practical experience building with AI agents or tool-using LLM systems, beyond a single chat-completion call. Professional work, open source, research, formal study or substantial independent projects all count. The role will be based in West London and will require 3 days ...

Engineering

Location
United Kingdom
TypeScript, Nest.js, blockchain experience Bonus If You Have Built crypto wallets, NFT platforms, or ICO dashboards Familiarity with container tools (Docker, Kubernetes) Contributions to open-source Web3 projects What Makes You an Expert Developed scalable web apps from scratch Deep understanding of modern frameworks, databases, and APIs Experience ...

Senior Full-Stack Engineer

Location
Greater London, England, United Kingdom
Nice to Have Experience with real‐time systems and WebSockets Knowledge of payment processing (Stripe) Previous experience in ticketing or events industry Contributions to open‐source projects Benefits Competitive salary with equity options. Flexible hybrid working arrangement. 25 days annual leave + bank holidays. Learning and development budget. ...

Front-End Developer

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
pegged as one of the fastest growing ecommerce platforms in Europe and are building a new unrivalled platform and application using cutting edge open source technologies.As a Front-End Developer you will creating great UI that will shape their web applications and digital platform to the next level. ...

Software Engineer - Polyglot / Any Tech

Hiring Organisation
Stanford Black
Location
London, UK
Employment Type
Full-time
across a stack of .Net Core, Python, C++ (low latency), F#, Java, Kotlin, Rust, Clojure, cloud, and they are heavily involved in the Open Source community. They have 10% Fridays as well where all engineers are able to work on personal projects/play around with technology ...

Junior / Grad Python Developer

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
shaping the future of finance and be rewarded accordingly.Development is agile and fast paced. As requirements evolve you will leverage the best of the open source community, sometimes substituting your own solutions where greater performance is needed. You will be encouraged to evangelise and prototype new technologies ...

Python Developer Times Top 50 fintech firms

Hiring Organisation
Quant Capital
Location
London, United Kingdom
Salary
£ 70 K
future of social data and be rewarded accordingly.Python Development is agile and fast paced. As requirements evolve you will leverage the best of the open source community, sometimes substituting your own solutions where greater performance is needed. You will be encouraged to evangelise and prototype new technologies ...

Tools & Compilers Research and Development Internship, Flexible

Location
Greater London, England, United Kingdom
optimiser, adding feedback-directed optimisation, and improving profiling, debugging, documentation, and build automation. A large portion of the team’s work is open source, and Jane Street upstreams changes to the mainstream OCaml compiler where possible. What the internship looks like You spend roughly 10–12 weeks ...

FaceSwap Artist - all levels - London Studio

Location
Greater London, England, United Kingdom
discipline are encouraged to apply. What You’ll Do Use a variety of deep learning based technologies to produce photorealistic images, including open source tools, and proprietary in house software Create templates to facilitate model evaluation Monitor the training progress, and assess improvements and quality; making necessary adjustments ...