576 to 600 of 1,624 Open Source Jobs in the UK

Chief Technology Officer (CTO)

Location
Havant, England, United Kingdom
defining agency technology offerings or service lines. Exposure to multiple industry verticals. Experience with AI applications, automation, or emerging technology R&D. Contributions to open‐source projects or thought leadership within the tech community. How to apply Please submit your CV and a covering letter outlining your relevant ...

AI Native SW Engineering

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent
multi-LLM integration standards: vendor-agnostic architecture by default, fallbackroutingand cost governance as standard design practice across providers including OpenAI, Anthropic, Vertex AI, and open-source models OwnLLMOpsatprogrammescale: eval strategy, prompt governance, observability tooling standards, safetymonitoringand cost controls across multiple concurrent systems Lead client engineering engagements at senior ...

Senior/Staff Software Engineer, Backend

Location
Greater London, England, United Kingdom
silos. What you see in the editor is what ships in production. Companies like Spotify, Duolingo, LinkedIn, Google, and Fortune 500 automakers use our open-source runtimes to build once and ship everywhere — websites, apps, games, and vehicles. We’re looking for a Senior Software Engineer to join ...

Full Stack AI Engineer

Hiring Organisation
Ryan, LLC
Location
London, UK
Employment Type
Full-time
with approximately 0-3 years of professional software engineering experience. Strong foundation in software engineering, demonstrated through professional work, internships, university projects, personal projects, open-source contributions, hackathons, or equivalent technical experience. Evidence of interest in and hands-on exploration of generative AI, large language models, or agentic ...

Applied AI Engineer, Global Public Sector

Hiring Organisation
Scale AI
Location
London, UK
Employment Type
Full-time
define AI-driven solutions Build and deploy end-to-end AI applications into production leveraging latest developments from the biggest AI labs, and open source modelsCollaborate with cross-functional teams, including data annotation specialists, to create high-quality training datasetsDesign and maintain robust evaluation frameworks to ensure ...

Principal Software Engineer - Full Stack - AI

Location
York and North Yorkshire, England, United Kingdom
evaluation tools. Industry Domain: Previous experience in Enterprise Performance Management (EPM), financial planning, business analytics, or related enterprise SaaS environments. Community Contributions: Contributions to open‐source agent frameworks, MCP servers, or published research in distributed systems or Generative AI. Our Commitment to Diversity, Equity, Inclusionand Belonging (DEIB ...

NatSec Cloud Engineer

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Natsec Cloud Engineer who has demonstrable experience of automating the software delivery pipeline within a highly scalable system that relies heavily on open source technologies. We thrive on solving complex challenges through creative thinking and the latest tools and tech. Our culture is inclusive, modern, friendly and innovative. ...

Senior / Staff Machine Learning Scientist May 14, 2026

Location
Glasgow, Scotland, United Kingdom
up. MLOps fluency: experiment tracking, data versioning, model serving, and observability of deployed models. A visible track record in the field — peer‐reviewed publications, open‐source contributions, or public projects that demonstrate your judgement on real ML problems. Why Join Chemify? Impact: Your models will directly shape what ...

Machine Learning Engineer

Hiring Organisation
Trainline
Location
London, UK
Employment Type
Full-time
love to hear from you if you...Have an advanced degree in Computer Science, Mathematics, Statistics or a similar quantitative disciplineAre proficient with Python, including open-source data libraries (e.g Pandas, Numpy, Scikit learn etc.)Have experience productionising machine learning models and/or AI solutionsAre an expert ...

Software Engineer III - Cloud Data Platform (AWS/Databricks, Terraform)

Location
Glasgow, Scotland, United Kingdom
adherence to resiliency and security expectations Preferred qualifications, capabilities, and skills Experience with data lakehouse architectures using Delta Lake, Apache Spark, or similar open-source frameworks Familiarity with AWS-native data services such as Glue, Lake Formation, Redshift, or Athena Exposure to data governance practices including cataloging, lineage ...

Senior Infrastructure Engineer

Location
Greater London, England, United Kingdom
ready platform tooling using Python or Golang. Deep understanding of container and orchestration internals (e.g., Kubernetes, Docker). Hands-on experience extending and integrating open-source tools like Prometheus, OpenTelemetry, and Grafana. Proven ability to package and scale developer-facing infrastructure utilities with a focus on improving system ...

Software Engineer III - Cloud Data Platform (AWS/Databricks, Terraform)

Hiring Organisation
JP Morgan Chase
Location
London, UK
Employment Type
Full-time
/outputs, and adherence to resiliency and security expectationsPreferred qualifications, capabilities, and skillsExperience with data lakehouse architectures using Delta Lake, Apache Spark, or similar open-source frameworksFamiliarity with AWS-native data services such as Glue, Lake Formation, Redshift, or AthenaExposure to data governance practices including cataloging, lineage tracking ...

Principle Data Warehouse Engineer (Executive Director)

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
deliver impactful data solutions Experience evaluating, selecting, and integrating emerging data technologies and tools to improve scalability, security, and performance Published contributions to open-source projects, technical blogs, or industry forums related to data engineering Advanced degree in Computer Science, Engineering, Mathematics, or a related field Recognized ...

Data Scientist

Location
Greater London, England, United Kingdom
completion. Experiment with model, prompt, retrieval, and agent configuration strategies to identify approaches that deliver the best customer and business outcomes. Evaluate commercial and open-source models and recommend appropriate approaches based on quality, latency, scalability, and cost. Generative AI & RAG Design, develop, and optimize Retrieval-Augmented Generation ...

Senior DevOps Engineer

Location
Greater London, England, United Kingdom
aspects. Familiarity with cloud cost optimization/FinOps practices for cloud and Kubernetes workloads. Experience contributing to multi-org infrastructure unification efforts. Contributions to open-source infrastructure or platform engineering projects, especially in the CNCF ecosystem. Why Deliveroo Our mission is to transform the way you shop ...

Senior Machine Learning Engineer

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
explainable, and human-in-the-loop decision-support tools for intelligence and operational users. Requirements Edge Model Optimization & Deployment: Quantize, fine-tune, and optimize open-source SLMs (e.g., Gemma 3, Llama 3) and vision-language models for execution on low-power edge runtimes (LiteRT/TensorFlow Lite, ONNX ...

Lead DevOps Engineer

Hiring Organisation
NICE Systems
Location
Southampton, Hampshire, United Kingdom
Salary
£ 70 K
mixed Linux and Windows environments with Puppet at scaleFamiliarity with puppet-lint, rspec-puppet, and automated Puppet module testing pipelinesUnderstanding of Puppet Enterprise or open-source Puppet Server administrationPowerShell ScriptingProficient PowerShell scripting for Windows Server administration, task automation, and hybrid cloud integrations (AWS Tools for PowerShell, Azure PowerShell ...

AI Delivery Tech Lead (CL8)

Location
Greater London, England, United Kingdom
agile, collaborative, fast-moving consulting environments Experience in Telco or Financial Services Set yourself apart Certifications in AWS, GCP, Azure or Anthropic AI platforms Open-source contributions to agentic or LLM tooling Contact centre platform experience (e.g. Genesys, Sierra, Decagon, Parloa, PolyAI, NICE Cognigy, Agentforce Contact Centre ...

Lead DevOps Engineer

Hiring Organisation
NICE Systems
Location
London, UK
Employment Type
Full-time
mixed Linux and Windows environments with Puppet at scaleFamiliarity with puppet-lint, rspec-puppet, and automated Puppet module testing pipelinesUnderstanding of Puppet Enterprise or open-source Puppet Server administrationPowerShell ScriptingProficient PowerShell scripting for Windows Server administration, task automation, and hybrid cloud integrations (AWS Tools for PowerShell, Azure PowerShell ...

Senior Python Engineer: AI Agents & Forecasting

Location
Greater London, England, United Kingdom
experience including random forests, regression models, scikit-learn, and PyTorch AWS infrastructure experience deploying containerised applications and managing cloud environments (EC2, Lambda, RDS) Open-source contributions to AI or crypto projects Compensation Salary: £80,000 to £120,000 depending on experience Equity: Competitive for the right candidate Hours ...

Remote Ada CS Engineer

Hiring Organisation
grabjobs
Location
Cambridge, Cambridgeshire, UK
This role is a chance for significantly more independence and autonomy than typical for this level of experience. The work you will do is open source and can be found on Github at . You will be working to improve and develop resources and experiences for teachers ...

Full Stack AI Engineer

Location
Greater London, England, United Kingdom
with approximately 0-3 years of professional software engineering experience. Strong foundation in software engineering, demonstrated through professional work, internships, university projects, personal projects, open-source contributions, hackathons, or equivalent technical experience. Evidence of interest in and hands‐on exploration of generative AI, large language models, or agentic ...

Global Banking & Markets - Systems Engineer - Vice President - London

Location
City Of London, England, United Kingdom
ability to provide liquidity and execution services for institutional clients around the world, which are important revenue drivers for the firm. We use open-source industry-standard, and internal proprietary technologies to build cutting-edge platforms for pricing, execution, and control across millions of transactions. The Futures Mission ...

AI Delivery Tech Lead (CL8)

Hiring Organisation
Accenture
Location
London, UK
Employment Type
Full-time
agile, collaborative, fast-moving consulting environments Experience in Telco or Financial Services Set yourself apart Certifications in AWS, GCP, Azure or Anthropic AI platforms Open-source contributions to agentic or LLM tooling Contact centre platform experience (e.g. Genesys, Sierra, Decagon, Parloa, PolyAI, NICE Cognigy, Agentforce Contact Centre ...

Technical Site Reliability Engineer

Hiring Organisation
Anduril Industries
Location
London, United Kingdom
Salary
£ 70 K
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 ...