51 to 75 of 201 Open Source Jobs in the UK

Cloud Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
United Kingdom
Employment Type
Contract
Contract Rate
Up to £85 per hour
/ML security challenges and AI-driven security tooling Experience with Kafka, Pulsar, Splunk, or real-time streaming systems Golang expertise Experience contributing to open-source projects or internal developer platforms Knowledge of Microsoft Copilot ecosystem or AI agent frameworks Experience building highly scalable cloud-native services ...

AI Native Software Engineer

Hiring Organisation
TekWissen UK
Location
City of London, London, United Kingdom
fault‐tolerant deployments Collaboration Tools or Platforms Microsoft Office (Excel, Word, Outlook, Teams) AI Platforms & Models: OpenAI, Anthropic (Claude), Google Vertex AI, and select opensource models Agent & Orchestration Frameworks: LangGraph, AutoGen, CrewAI (or similar) Cloud & DevOps Tooling: Docker, Kubernetes, Terraform, Helm, CI/CD pipelines Enterprise Integration ...

Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a British National ...

Principle Java Engineer

Hiring Organisation
Profile 29
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £75,000 per annum
case-management or service-orchestration platforms Understanding of agentic AI capabilities and how they can complement workflow automation Experience mentoring developers or contributing to open-source Camunda extensions Already holding UK security clearance (SC, DV, eDV) Other Stuff NB: Please only apply if you are a UK National ...

Staff Software Engineer

Hiring Organisation
ShareChat
Location
City of London, London, United Kingdom
large-scale models using tools such as Tensorflow or PyTorch is a plus. You stay up-to-date with the state-of-the-art open source infrastructure solutions applicable to designing and improving large scale recommender systems, data engineering, and machine learning You have a Master ...

Red Team Operator

Hiring Organisation
Foregenix
Location
United Kingdom
C++, C#, Java), enabling custom tooling and automation. Active participation and genuine interest in the offensive security community (e.g., evidenced by contributions to open-source tools, security blogs, or conference participation), coupled with the ability to work autonomously and manage multiple high-stakes engagements effectively. Advanced level ...

AI Software Engineer

Hiring Organisation
Centrica - CHP
Location
Windsor, Berkshire, South East, United Kingdom
Employment Type
Permanent, Work From Home
services into production. Strong experience with modern machine learning and or generative AI frameworks Experience working with large language models, either through fine tuning open source models or integrating with managed foundation model platforms. Hands-on experience building data pipelines and model workflows using tools such as Python ...

Principal Java Architect

Hiring Organisation
Jobleads-UK
Location
Nottingham, England, United Kingdom
LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets … growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.LSEG is headquartered ...

Full Stack Engineer

Hiring Organisation
Canbury
Location
London, England, United Kingdom
Python backends (FastAPI or similar), React/TypeScript frontends, and relational databases (PostgreSQL preferred). A track record of building and shipping. Personal projects, open-source contributions, or production systems you can talk about in detail. Comfort working with LLM APIs and an understanding of the practical considerations ...

Lead Data Scientist

Hiring Organisation
SBS
Location
Greater London, England, United Kingdom
/ML model development, including feature selection, XAI techniques, and consensus modelling Strong programming skills (e.g., Python, Java, or similar) and experience with open-source AI libraries Ability to integrate AI models into commercial software architectures and ensure compliance with GDPR and security standards Excellent analytical and problem ...

Managing Architect (public sector)

Hiring Organisation
Jobleads-UK
Location
United Kingdom
specialists. The successful candidate will meet all of the following essential criteria: Demonstrable experience in designing large scale cloud migration projects/programmes with open source and commercial software within AWS, Azure, GCP or hybrid Experience in operating within a multi‐disciplined team and clearly communicating complex technology … Understanding of NCSC Cloud Security Principles and its practical implementations Aker Systems Attributes At Aker we work as a team; we are collaborative, hardworking, open, and delivery obsessed. There is no blame culture here: try things, and take responsibility for the outcomes. You are always part of the wider ...

Managing Architect

Hiring Organisation
Aker Systems Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
specialists. The successful candidate will meet all of the following essential criteria: Demonstrable experience in designing large scale cloud migration projects/programmes with open source and commercial software within AWS, Azure, GCP or hybrid Experience in operating within a multi-disciplined team and clearly communicating complex technology … Understanding of NCSC Cloud Security Principles and its practical implementations Aker Systems Attributes At Aker we work as a team, we are collaborative, hardworking, open, and delivery obsessed. There is no blame culture here: try things, and take responsibility for the outcomes. You are always part of the wider ...

Artificial Intelligence Specialist

Hiring Organisation
Experis UK
Location
England, United Kingdom
management skills No minimum education requirement — we care about what you've shipped, not what's on your CV. Demonstrate your expertise through experience, open source contributions, or a strong project portfolio. Sound like you? Apply below or get in touch directly. ...

Professional Services DevOps Engineer

Hiring Organisation
Walsh Employment
Location
Central London, London, United Kingdom
Employment Type
Permanent
premise and cloud-based environments Exposure to software architecture and system design would be advantageous A strong learning mindset and genuine interest in open-source technologies A consistent and credible career record , demonstrating progression and commitment within relevant organisations Role & Responsibilities As a Professional Services DevOps Engineer ...

Asset & Wealth Management - Software Engineering Manager - Vice President - Birmingham

Hiring Organisation
Jobleads-UK
Location
Birmingham, England, United Kingdom
management role. Data Platform Mastery: Proven experience with modern data platforms such as Snowflake (AI Data Cloud) and cloud‐native services. Good understanding of opensource table formats, specifically Apache Iceberg , to enable interoperability, schema evolution, and high‐performance analytics across multiple engines. Programming: Expert‐level proficiency ...

Director, Application Architecture, Content Platforms

Hiring Organisation
S&P Global
Location
Greater London, United Kingdom
Employment Type
Full Time
Salary
140000 to 185000 USD Annually
overall software development experience with at least 3+ years in high-level architecture design and implementation Expert-level proficiency in a Java based or open-source ecosystem, with strong experience in building enterprise-scale applications and microservices architectures Proven experience designing and implementing cloud-native architectures using ...

Senior Site Reliability Engineer

Hiring Organisation
Realm
Location
City of London, London, United Kingdom
Hands-on experience with data centre or bare-metal infrastructure Knowledge of high-performance networking technologies Experience managing large-scale storage systems (commercial or open-source) Compensation & Benefits Competitive salary and equity package Retirement or pension contributions aligned with local standards Health coverage including medical, dental, and vision ...

Python Developer

Hiring Organisation
Sanderson
Location
United Kingdom
Exposure to containerized environments (Docker, Kubernetes) and CI/CD workflows Familiarity with data pipelines and integration with AI/ML models Contributions to open-source projects or Python/Django communities ...

Machine Learning Engineer PyTorch LLM

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
friendly office Pension Monthly socials Impactful role that you can shape and influence Your role: As a Machine Learning Engineer you'll take open-source LLMs (code and general models) and turn them into high-performance software engineer agents using supervised fine tuning and large scale reinforcement learning. ...

Senior Full Stack Engineer @ Eloquent AI (YC X25)

Hiring Organisation
Eloquent AI
Location
United Kingdom
design and have built intuitive, AI-driven interfaces. You have experience with GraphQL, WebSockets, or real-time data streaming. You’ve contributed to open-source projects or have built developer tools for AI. Whats on offer: Salary up to £120k. Meaningful early equity. Remote-first setup anywhere ...

Kubernetes Linux AIOps Engineer – Elite Quant Hedge Fund

Hiring Organisation
Winston Fox
Location
City of London, London, United Kingdom
write high quality Automation/scripts from scratch. Configuration Management Tools (Ansible/Puppet/Kapitan/Terraform....) Observability: Experience within the modern open-source ecosystem (ELK, OpenTelemetry, LGTM stack, Prometheus, Grafana, Loki...) CI/CD and GitLab/GitOps : working with Development teams. A track-record ...

Geospatial Engineer

Hiring Organisation
nxzen
Location
England, United Kingdom
driven data architectures. Knowledge of ArcGIS Enterprise, ArcGIS Online, or other geospatial platforms. Scripting or workflow automation experience beyond core data engineering. Exposure to open-source geospatial tools and libraries. Summary This is an excellent opportunity for a capable Geospatial Data Engineer who enjoys hands‐on development ...

Senior C++ Developer (Hybrid, UK-Based)

Hiring Organisation
Hoptroff
Location
London, United Kingdom
Employment Type
Permanent
Salary
£80000 - £100000/annum
database experience Python and/or Go (Golang) for tooling, automation, or supporting services Familiarity with time synchronisation protocols such as PTP or NTP Open-source contributions or evidence of staying current with the C++ standard Open to integrating AI tools where they add value What ...

Senior AWS Data Engineer - SC Cleared

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£425 - £450 per day
robust data pipelines for ingestion, processing, and transformation Implement and maintain ETL/ELT workflows feeding data warehouses, data lakes, or lakehouse platforms Leverage open-source and AWS-native tools to deliver scalable data solutions Apply DevOps practices , including CI/CD and automation Ensure solutions align with … solutions Experience working in Agile (Scrum) delivery environments Strong communication and stakeholder-management skills Proactive, collaborative, and delivery-focused mindset Desirable Skills Knowledge of open table formats (Iceberg, Delta) Experience with additional AWS services (CloudWatch, SNS, Athena, DynamoDB, EMR, Kinesis) Data modelling Job scheduling and orchestration tools Data virtualisation ...

Forensic Data Analytics Manager

Hiring Organisation
KPMG UK
Location
London Area, United Kingdom
role The role will involve leading a team deploying forensic analytics (including testing routines across structured data and LLM-enabled unstructured, structured and open-source data analysis) over large datasets to help our clients solve their most complex fraud, misconduct and integrity matters. This role requires a deep … need to do is apply, create a profile, upload your CV and begin to make your mark with KPMG. Our Locations: We are open to talk to Forensic talent across the country but our core hubs for this role are: Birmingham London Canary Wharf Manchester With 20 sites across ...