1,051 to 1,075 of 2,269 Open Source Jobs in the UK

Principal Software Engineer

Location
Greater London, England, United Kingdom
policy‐as‐code and self‐service tooling. Event‐driven architecture, and experience of legacy modernisation or migration programmes. Contribution to the wider engineering community — open source, writing, speaking or standards work. Your approach to work: Pragmatic. You optimise for outcomes and maintainability, not for elegance or novelty. Generous. … Evidence‐led. You hold strong opinions loosely and change your mind when the data says so. Direct and kind. You disagree well, in the open, and commit fully once a decision is made. Curious and current. You keep learning fast in a field that is moving fast ...

Senior AI Software Engineer, Coding Agent

Location
Greater London, England, United Kingdom
capabilities. Who We Look For Customer‐oriented and able to thrive in a fast‐paced environment. Positive, self‐motivated, and passionate. Independent, insistent, and open‐minded. Great team player, dependable and autonomous. Data‐driven decision maker. Requirements 8+ years of professional software engineering experience, with a strong background … expertise in Retrieval‐Augmented Generation (RAG) and AI Agent architectures. Deep, hands‐on experience with LLM APIs and/or fine‐tuning and serving open‐source models. Strong understanding of prompt engineering and context engineering to maximize model relevance and accuracy. Excellent problem‐solving skills and the ability ...

Principal ML Engineer: Speech AI & Production

Location
Cambridge, England, United Kingdom
pipelines, and containerization (Docker, Kubernetes) With preferred backgrounds covering some of the following: Experience with speech-to-text or text-to-speech Contributions to open-source projects or published research in top-tier conferences We encourage you to apply even if you do not feel you match … exhaustive. If you are interested in the role, the team, and our mission, we would love to consider your application. We are always open to conversations and look forward to hearing from you. Who we are: Speechmatics is the leading expert in Speech Intelligence, and uses AI and Machine ...

Agile Software Engineer - Java - Greenfield Multi-Asset Trading Platform

Hiring Organisation
Stanford Black
Location
London, UK
Employment Type
Full-time
able to be cross-trained in Scala and Kotlin, with everything being built in AWS.Not only this, you could be cross-trained in modern open source technology such as Helm, Grafana, and GraphQL. In terms of salary, this particular client offers unmatched compensation packages and pay above … public cloud environment with AWS, GCP or AzureNo previous finance experience is requiredJob function/benefits: Quantitative Trading FirmSoftware EngineeringExposure to cutting edge opensource technologyHolidaysHealthcarePensionsBonus structure and highly competitive salary. For more information, please email Lois. Raduechel@stanfordblack.com ...

Software Development Lead, Data and Analytics

Hiring Organisation
FTI Consulting
Location
London, UK
Employment Type
Full-time
integral part of a focused team where you can make a real impact. You'll be surrounded by an open, collaborative culture that embraces diversity, recognition, professional development and, most importantly, you. Are you ready to make your impact? About The RoleThe Software Solutions team is a high-velocity … engagements spanning corporate strategy, litigation, investigations, disputes, compliance, regulatory support, financial crime, fraud, and performance improvement. The team employs a range of modern open source and cloud technologies to design, build, and deliver solutions. This specialized team creates scalable and feature-rich web applications using a continuously evolving ...

Principal Statistical Programmer

Hiring Organisation
GSK
Location
Durham, County Durham, United Kingdom
Salary
£ 70 K
improve programming productivity and automation.Familiarity with modern software engineering practices, including Git-based workflows, reusable frameworks, and automation pipelines.Experience with R, Python, and open-source analytics tools within regulated clinical development environments.Experience contributing to standards development, process improvement, or digital transformation initiatives.Knowledge of Agile delivery methodologies and collaborative … communities worldwide. We are deeply committed to:Patient Focus – Always putting the needs of those living with HIV first. Transparency, Respect, and Integrity – Maintaining open communication, mutual respect, and a high ethical standard in everything we do. Courage and Accountability – Demonstrating bold leadership by making agile, evidence-based decisions ...

Data Science & AI Delivery Lead

Location
Greater London, England, United Kingdom
allocation to ensure the team is effectively deployed against priorities. Technology Vision: Stay current with the rapidly evolving AI landscape, including new foundation models, open‐source frameworks, vector databases, orchestration tools (e.g., LangChain, Semantic Kernel), and evaluation methodologies. Bring new ideas to the team and lead proof … bring your own experience and expertise to the table so, while there are some qualifications and experiences we need you to have, we are open to discussing how your individual knowledge might lend itself to fulfilling this role and help us achieve our goals. What you need to have ...

Senior Java Engineer - Core / Infra - Elasticsearch

Hiring Organisation
elastic
Location
United Kingdom
Salary
£ 70 K
features and APIs in Elasticsearch.Solving difficult issues, including performance or concurrency issues, and proposing solutions.Improving operation and observability of Elasticsearch cloud systems.Collaborating in the open with the ES team, Elastic users, and other supporting open source projects.Supporting our support engineers with the harder problems.Owning operational investigations ...

Senior Java Engineer - Core / Infra - Elasticsearch

Location
United Kingdom
Elasticsearch. Solving difficult issues, including performance or concurrency issues, and proposing solutions. Improving operation and observability of Elasticsearch cloud systems. Collaborating in the open with the ES team, Elastic users, and other supporting open source projects. Supporting our support engineers with the harder problems. Owning operational investigations ...

Senior Consultant, Digital & Insights, Data Science | Strategic Communications

Hiring Organisation
FTI Consulting
Location
London, UK
Employment Type
Full-time
integral part of a focused team where you can make a real impact. You'll be surrounded by an open, collaborative culture that embraces diversity, recognition, professional development and, most importantly, you. Are you ready to make your impact? About The RoleWe are looking for a talented and ambitious … oriented approaches to investigate and interpret data Work with other data scientists to build and support custom solutions, applications and processing pipelinesInterrogate multiple data source and extract insights by combining information from each Detect hidden patterns, identify trends, reveal drivers, predict developments, visualise similarities and differences, and otherwise leverage ...

Senior Consultant, Digital & Insights, Data Science | Strategic Communications

Location
Greater London, England, United Kingdom
integral part of a focused team where you can make a real impact. You’ll be surrounded by an open, collaborative culture that embraces diversity, recognition, professional development and, most importantly, you.Are you ready to make your impact?**About The Role**We are looking for a talented and ambitious … approaches to investigate and interpret data* Work with other data scientists to build and support custom solutions, applications and processing pipelines* Interrogate multiple data source and extract insights by combining information from each* Detect hidden patterns, identify trends, reveal drivers, predict developments, visualise similarities and differences, and otherwise leverage ...

Senior Solutions Architect (Data & AI) - Leeds based

Location
Leeds, England, United Kingdom
Databricks certifications Prior experience at Databricks, Snowflake, AWS, Google, Microsoft, or a top-tier data/AI company Published thought leadership (blogs, conference talks, open source contributions) Industry experience in Retail or Consumer Packaged Goods with executive-level domain credibility About Databricks Databricks is the Data … 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 ...

Senior Solutions Architect (Data & AI) - Leeds based

Location
Manchester, England, United Kingdom
Databricks certifications Prior experience at Databricks, Snowflake, AWS, Google, Microsoft, or a top-tier data/AI company Published thought leadership (blogs, conference talks, open source contributions) Industry experience in Retail or Consumer Packaged Goods with executive-level domain credibility Interview Process: Recruiter Screen → Hiring Manager Screen → Design … 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 ...

AI Infrastructure Engineer

Location
Greater London, England, United Kingdom
Experience with AWS or other major cloud providers. Production experience with Python in ML or infrastructure contexts. Demonstrated passion for technology through personal projects, open source, meetups, or publishing content about your work and learnings #LI-Hybrid Unleash Your Potential When you join Salesforce, you’ll be limitless … providing flexibility to work from home. We expect employees to be in the office at least three days per week. We have a radically open and accepting culture at Fin. We avoid spending time on divisive subjects to foster a safe and cohesive work environment for everyone. ...

Staff Release Engineer

Location
West of England, England, United Kingdom
Lead the high-level design and long-term roadmap definition for building, scaling, and governing the systems and practices that reliably move software from source to production through centralized developer tooling across all Kaluza engineering domains. Drive Engineering Productivity & SRE Practices: Strategize and embed automated deployment & release mechanisms, testing … Integration Experience: Hands-on experience integrating large language models into production applications or developer workflows, whether via APIs (e.g., OpenAI, Anthropic, AWS Bedrock) or open-source models, with a solid understanding of prompt engineering, context management, and evaluation. AI Tooling Advocacy: A track record of introducing AI-assisted ...

Senior Sales Engineer

Location
Greater London, England, United Kingdom
some vertical industry experience, especially in Financial Services, Retail, Travel, Transport & Leisure or Public Sector. Active engagement in the technical or developer community (e.g., open‐source contributions, technical blogging, or community mentorship). Proven track record of designing reusable implementation guides, integration playbooks, or localization toolkits for global … scammers may ask for money or personal information by offering fake job opportunities through e‐mail, text message or social media. Please verify the source of any job‐related communications carefully. All official Zendesk communications are conducted through "@zendesk.com" email addresses. If you encounter suspicious messages, do not respond ...

Platform Engineer (Kubernetes/Cloud) Full-time (start asap) Remote or In-person London

Location
Greater London, England, United Kingdom
whilst supporting households with lower energy bills. Working in partnership with SecureLinx and SUSE , we’ve established a robust technical, secure foundation using modern open-source, cloud-native technologies. Now we’re ready to scale – expanding capability, automation and performance as we grow our client base, which comprises … drive from Guildford, parking available Ideally would be based in the office, but can be hybrid or fully remote; depending on experience/independence; open to discussion. #J-18808-Ljbffr ...

Staff/Principal Machine Learning Scientist - Ranking & Retrieval

Location
Greater London, England, United Kingdom
Retrieval London, United Kingdom About Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance … strong track record of academic or industry contributions, including publications in top‐tier AI/IR conferences (e.g., SIGIR, KDD, RecSys, NeurIPS) or open‐source ML contributions. What We Offer Competitive compensation packages (routinely benchmarked against the latest industry data), including base salary and annual bonuses “Work your ...

Principal Machine Learning Scientist (Experiences)

Location
Greater London, England, United Kingdom
Experiences) London, United Kingdom About Tripadvisor The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance … strong track record of academic or industry contributions, including publications in top-tier AI/IR conferences (e.g., SIGIR, KDD, RecSys, NeurIPS) or open-source ML contributions. What We Offer Competitive compensation packages (routinely benchmarked against the latest industry data), including base salary and annual bonuses “Work your ...

Senior Product Security Engineer

Hiring Organisation
Anduril Industries
Location
London, UK
Employment Type
Full-time
weakness in designs, implementations, integrations, and processesIntegrates and matures Product Securitys suite of tooling thought Anduril's products. Conducts security assessments including architecture review, source code analysis, configuration auditing, and adversarial testingRequirements: Proficient with one or more programming languages (e.g. C/C++, Golang, Rust, Python)Experience assessing security … third-party service provider provides risk-intelligence services that may include analysis of sanctions and watchlists, adverse media, public-record information, and other lawful open-source or commercial data sources. This third-party service provider does not act as a consumer reporting agency. Use of this provider helps ...

Remote Cloud Engineer: OpenStack, Kubernetes & Linux

Location
Greater London, England, United Kingdom
over private and public cloud solutions. You will work hands-on across the Linux stack, use Python to develop Kubernetes operators, and contribute to open source infrastructure-as-code. The role includes travel up to 25% and remote-first work arrangements. Ideal candidates have a CS degree ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
Manchester, North West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
lifecycle, from requirements analysis and architecture through to implementation, deployment, training and support. Develop full stack applications using Java, TypeScript, JavaScript and React. Utilise open-source libraries, frameworks and components to deliver modern software capabilities. Build and maintain continuous integration pipelines using tools such as GitLab to monitor ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
Plymouth, Devon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
lifecycle, from requirements analysis and architecture through to implementation, deployment, training and support. Develop full stack applications using Java, TypeScript, JavaScript and React. Utilise open-source libraries, frameworks and components to deliver modern software capabilities. Build and maintain continuous integration pipelines using tools such as GitLab to monitor ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
lifecycle, from requirements analysis and architecture through to implementation, deployment, training and support. Develop full stack applications using Java, TypeScript, JavaScript and React. Utilise open-source libraries, frameworks and components to deliver modern software capabilities. Build and maintain continuous integration pipelines using tools such as GitLab to monitor ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
Bristol, Avon, South West, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
lifecycle, from requirements analysis and architecture through to implementation, deployment, training and support. Develop full stack applications using Java, TypeScript, JavaScript and React. Utilise open-source libraries, frameworks and components to deliver modern software capabilities. Build and maintain continuous integration pipelines using tools such as GitLab to monitor ...