526 to 550 of 1,567 Open Source Jobs in the UK

Senior Software Engineer - Data Infrastructure

Hiring Organisation
Woven by Toyota
Location
London, United Kingdom
Salary
£ 70 K
testing modern AD/ADAS products that will impact millions of customers. Our ML and Data pipelines are built on-top of the open-source Flyte orchestration framework and are deployed to AWS. Pipeline code is written in Python. We use SQS and Kafka to automate data connections ...

Principal Software Engineer - UK

Hiring Organisation
DISCO
Location
London, UK
Employment Type
Full-time
design and develop from a security perspective Possesses an understanding of how to identify, select, and extend 3rd party components (Commercial or Open Source) that provide operational leverage but do not constrain product and engineering creativityEven Better If You Have... Experience designing, modifying, and operating multi-tenant systems ...

Lead Software Engineer

Hiring Organisation
BroadbandUK
Location
East London, London, United Kingdom
Employment Type
Permanent
environments and like solving real problems and learning fast. Proven impact: youve built and scaled products, led projects that made a difference, contributed to open-source, or delivered results that truly moved the needle. Practical AI experience: some experience building with LLMs, retrieval, agents or related technologies ...

AI Native SW Engineering

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent
strategy, vector search, context window engineering and tuning against real quality targets Integrate and abstract across multiple LLM providers OpenAI, Anthropic, Vertex AI, and open-source models with fallback routing, token, cost, and latency management ImplementLLMOpsin production: eval harnesses with real quality metrics, prompt versioning, observability tooling (LangSmith ...

GenAI Full-Stack Engineer

Location
Greater London, England, United Kingdom
degree in Computer Science, Engineering, or a related field, or equivalent practical experience. Desirable Experience with financial services or other regulated industries. Contributions to open-source projects. Experience with MLOps and the deployment of machine learning models. What we’ll provide you This is a unique role that ...

AI Native SW Eng

Hiring Organisation
Hackajob Ltd
Location
London, United Kingdom
Employment Type
Permanent
strategy, vector search, context window engineering and tuning against real quality targets Integrate and abstract across multiple LLM providers OpenAI, Anthropic, Vertex AI, and open-source models with fallback routing, token, cost, and latency management ImplementLLMOpsin production: eval harnesses with real quality metrics, prompt versioning, observability tooling (LangSmith ...

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 ...