251 to 275 of 501 Remote Open Source Jobs

Senior Application Security Engineer

Hiring Organisation
Cloudsmith
Location
Belfast, UK
Employment Type
Full-time
supply chain security platforms. Experience with secure runtime environments, sandboxing, workload isolation, policy engines, OPA/Rego, eBPF, or similar control points. Contributions to open-source security tooling or supply chain security projects. Familiarity with Datadog, AWS Security Hub, Okta, GitHub Advanced Security, Snyk, Semgrep, Trivy ...

Junior Python Engineer - Mongo

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
heart of what they do providing substantial opportunities for transformation via funding for small businesses. The environment is that of Facebook or Google, relaxed open with time to think and make the right decisions. The atmosphere is calm and relaxed with an open dress code. This … serious money doing something you are passionate about. 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 ...

Software Engineer, RL Data

Location
Greater London, England, United Kingdom
ambiguous environments — for example as a founder or CTO, forward deployed engineer, tech lead, founding engineer at a startup, or creator of a substantial opensource project. Trusted to run key projects: you lead and inspire others, plan workstreams effectively, collaborate with cross‐functional stakeholders, and proactively eliminate … tool‐use agentic tasks — and harden them so they behave correctly across millions of rollouts in a frontier training run. Bring a new data source online — from first conversation with a partner organization to data flowing into production training runs — coordinating with product, security, privacy, legal, and infrastructure teams ...

Forward Deployed AI Engineer

Hiring Organisation
Fruition Group
Location
Leeds, West Yorkshire, Yorkshire, United Kingdom
Employment Type
Permanent, Work From Home
skills and a commercial, outcome-focused mindset Nice to have: Vector databases, embeddings or fine-tuning AWS or Google Cloud Startup or founder experience Open-source contributions or AI side projects What's in it for me? Base salary up to £100,000 Hybrid working model with remote ...

Senior Test Engineer

Hiring Organisation
Stealth IT Consulting Limited
Location
United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£458 per day £458/day inside IR35
Ensure NFT evidence is sufficient to support confident release decisions Tech Stack: Test automation using JavaScript-based frameworks such as WebdriverIO, Playwright or Cypress Open-source JS-based libraries/frameworks for API testing, or Postman JMeter or K6 for load and performance testing CI/CD pipelines ...

Senior Backend Engineer, Backoffice team (Python)

Location
Greater London, England, United Kingdom
Have Experience working in fintech , regulated industries, or internal B2B tools Familiarity with AWS , Docker , and message brokers (e.g. RabbitMQ, Kafka) Contributions to open source or personal side projects How We Work We’re a lean, collaborative team where developers influence architecture, product direction, and engineering culture. ...

Senior Software Engineer

Location
Cheltenham, England, United Kingdom
focussed team, gaining exposure to: Implementing software solutions including design, development and testing Using a wide range of technologies, specialising in the use of open-source libraries and components Utilising tools such as GitLab to build continuous integration pipelines, which help monitor and ensure software quality and security ...

Full Stack AI Engineer Onsite in San Francisco Local Candidates Only, 5

Hiring Organisation
Twenty80 LLC
Location
San Francisco, California, United States
Employment Type
Any
Salary
USD 200,000 Annual
judgment and the ability to work with limited direction Ability to move quickly while maintaining high engineering standards Preferred Experience OpenAI, Anthropic, Gemini, or open-source AI models Model Context Protocol and agent orchestration frameworks LangGraph, LlamaIndex, Vercel AI SDK, or similar tools Vector databases such as Pinecone ...

Python Engineer Data Domains

Location
Greater London, England, United Kingdom
data products confidently Partner closely with: data scientists machine learning engineers Improve and evolve the overall data infrastructure Experiment with emerging technologies Explore open-source tools Engage with the broader tech community Help keep Prima at the cutting edge What we’re looking for Software & Data Engineering Strong ...

Software Engineer - AI & Business Solutions

Hiring Organisation
Proactive Appointments
Location
Reading, Berkshire, United Kingdom
Employment Type
Full-Time
Salary
£40,000 - £60,000 per annum
process improvement initiatives. Exposure to systems integration, data engineering, business intelligence or cloud platforms. Consulting, business analysis or solution design experience. Personal projects, open-source contributions or experimentation with AI. What’s On Offer £40,000–£60,000 salary depending on experience. Discretionary bonus scheme. Remote or hybrid ...

Full Stack AI Engineer Onsite in New York Local Candidates Only, 5

Hiring Organisation
Twenty80 LLC
Location
New York, United States
Employment Type
Any
Salary
USD 200,000 Annual
Ability to move quickly while maintaining high engineering standards Must be actively hands-on and writing production code Preferred Experience OpenAI, Anthropic, Gemini, or open-source AI models Model Context Protocol and agent orchestration frameworks LangGraph, LlamaIndex, Vercel AI SDK, or similar tools Vector databases such as Pinecone ...

Senior Software Developer

Hiring Organisation
Entrust Corporation
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
secure-boot technologies and digital signatures. Familiarity with full-stack from device drivers, to client-side tools & API libraries. (Some knowledge of hardware protocols.)Open-source software development - as licensee, or as contributor. A broad interest in cryptography and/or computer security techniques. Agile and/ ...

C# Developer

Location
Greater Manchester, England, United Kingdom
bonus points if you have: Exposure to ElasticSearch, Event Store, Neo4j, InfluxDB, Seq, Power BI. Experience with micro‐ORMs such as PetaPoco. Contributions to opensource projects or personal coding projects. Cloud infrastructure experience, especially Azure. Strong grasp of clean code principles, OOP design, and software patterns. What ...

Senior Application Security Engineer (Remote)

Location
Greater London, England, United Kingdom
with securing distributed systems in AWS and cloud environments Experience with pentesting and securing agentic features and systems Contributions to the wider technical community - open source, public research, mentorship, community organizing, blogging, CVEs, presentations, etc Experience submitting to bug bounty programs or responsible disclosure programs Compensation The expected ...

Product Engineer (AI Agent Management)

Location
Harrow, England, United Kingdom
follow through Value collaboration, openness, and continuous improvement Bonus points if you’ve worked with APIs, cloud-native platforms, AI-enabled systems, or open source, but curiosity matters most. Life at Gravitee At Gravitee, we invest in humans, not just roles. You’ll Get Competitive medical coverage Pension ...

Senior Software Engineer, Machine Learning

Hiring Organisation
Roku
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
paper(s) on deep learning models for Advertising or related areas. Excellent communication and collaboration skills. Experience in the Advertising domain (preferred)Contributions to open-source ML projects (preferred)What's Roku's approach to hybrid working? Roku fosters an inclusive and collaborative environment where teams generally work ...

Site Reliability Engineer Manchester

Hiring Organisation
Hackajob Ltd
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
different levels of the stack Understanding of ITIL terminology Experience with container management and micro-services architectures such as Docker Experience extending and improving Open Source Software Familiarisation with automation test frameworks such as Selenium Awareness and insight into technology trends to adopt new cutting edge tools ...

Technical Lead

Hiring Organisation
Appcast
Location
Manchester, UK
responsible for the following:Designing, implementing, documenting, and maintaining software solutions.Full stack development using Front End technologies such as React, integrating AWS services and open source tooling, using a variety of different databases (e.g. MongoDb or ElasticSearch) and developing in Java, TypeScript or Python.Integration of AI into data ...

Senior Security Consultant

Hiring Organisation
Appcast
Location
Yeovil, Somerset, UK
Defence security standards, such as Defstan 05-138 & Defstan 05-139.That extends outside of traditional enterprise IT scenarios extending to proprietary and open-source software, firmware and electronic hardware.Developing, evaluating and analysing design constraints, and detailed system and security designs as they pertain to the cyber domain.Decomposing ...

Senior Security Consultant

Hiring Organisation
Appcast
Location
London, UK
Defence security standards, such as Defstan 05-138 & Defstan 05-139.That extends outside of traditional enterprise IT scenarios extending to proprietary and open-source software, firmware and electronic hardware.Developing, evaluating and analysing design constraints, and detailed system and security designs as they pertain to the cyber domain.Decomposing ...

Senior Security Consultant

Hiring Organisation
Leonardo DRS
Location
Yeovil, Somerset, UK
Employment Type
Full-time
Defence security standards, such as Defstan 05-138 & Defstan 05-139.That extends outside of traditional enterprise IT scenarios extending to proprietary and open-source software, firmware and electronic hardware. Developing, evaluating and analysing design constraints, and detailed system and security designs as they pertain to the cyber ...

Senior Software Engineer, UI Players

Hiring Organisation
Roku
Location
Cambridge, Cambridgeshire, UK
Employment Type
Full-time
embedded platform. Extensive programming experience with C++ and Embedded Linux or Native Application Development In-depth understanding of Linux, tools, libraries, and open source developmentProficiency in AI Assisted programmingUnderstanding of API design considerations and tradeoffsFamiliarity with tools and libraries such as Boost, PlayReady, ALSA, DIAL a plusExperience with ...

Senior Front End Software Engineer - Application Development

Hiring Organisation
Palantir Technologies
Location
London, UK
Employment Type
Full-time
Technologies We UseTypescript, React, and GQL are central to our frontend development. Blueprint as a re-usable front end component library. A combination of open-source and internal technologies that suit the problems at hand. Industry-standard build tooling, including Webpack, GitHub, and CircleCI.What We ValuePassion for improving ...

AI Platform Engineer

Location
Greater London, England, United Kingdom
usage‐based billing Financial services engineering (banks, insurers, or payment providers) is the ideal background; other regulated‐industry or security engineering depth also counts Opensource contributions or a portfolio of deployed agents and eval suites (we would rather see this than a CV) The reference stack ...

Automation Test Engineer - Selenium Java Python- Wimbledon

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
with the latest windows versions and sits on AWS, so if you want to play around you will be encouraged. The CEO has an open desk and works closely with every team member. As a QA Engineer, you will be responsible for the development of testing frameworks, working closely … continuous deployment and delivery activities. The Automation Tester must have: Comp Sci or Tech DegreeREST APIExtensive experience in automated software test development using latest open-source tools. Excellent working knowledge on Selenium Webdriver with Python or Java (Ability to code)Experienced in developing test automation frameworks from scratch ...