1 to 25 of 160 Open Source Jobs in London

Storage Engineer

Hiring Organisation
Ncounter LTD
Location
City of London, London, United Kingdom
Employment Type
Permanent
that support critical research and trading workloads. This role offers the opportunity to work on innovative, high-impact projects at the intersection of cloud, open-source, and high-performance computing. The Role: Design and develop scalable data orchestration services across cloud and on-prem environments. Create unified platform … abstractions to streamline data access across diverse storage technologies. Integrate open-source and vendor storage solutions through rapid prototyping and engineering. Optimise storage performance and efficiency across large-scale infrastructure. Collaborate across engineering functions to deliver robust end-to-end platform capabilities. Own operational responsibilities: troubleshooting, performance tuning ...

Data and AI Consultant - Full time

Hiring Organisation
Staffworx
Location
South London, UK
Employment Type
Full-time
engineering, model selection, handling imbalanced data, choosing and interpreting metrics Experience with PyTorch or TensorFlow GenAI specific Hands on experience with LLM APIs or open source models such as Llama or Mistral Experience building RAG systems with vector databases such as FAISS, Pinecone or Weaviate Ability to evaluate … bash Experience with BI tools such as Looker or Tableau Prior consulting experience or leading client projects end to end Contributions to open source, conference talks or published papers that show your ability to share ideas and influence the wider community #DataAIConsultant #DataConsulting #AIConsultant #GenAIConsultant #HiringNow #DataScience #MachineLearning ...

Solution Architect – National Security

Hiring Organisation
Forward Role Secure
Location
Greater London, England, United Kingdom
digital services that support the UK’s national security mission. Our client delivers high-performance technology solutions for the UK Public Sector, using modern open-source tooling and operating within Agile and DevOps environments. This role is ideal for someone passionate about designing robust, scalable architectures and influencing … Required exposure You’ll have significant hands-on experience across several of the following areas: End-to-end technical and solution architecture design Modern open-source technologies Cloud platforms (AWS preferred) Security principles and best practice IAM, OAuth, Cognito, OIDC (highly beneficial) Containerisation and orchestration (Docker, Kubernetes) DevOps ...

Lead Platform Engineer

Hiring Organisation
Trust In SODA
Location
London Area, United Kingdom
Startup 📍 London (fully onsite) 💵 £120-150k + Bonus Are you keen to work for a rapidly scaling fintech startup who's AI-native, open-source technology is revolutionising banking infrastructure? Are you keen to work with the most cutting edge technologies in the DevOps space, withing … genuinely AI first prod enviornment? My client is creating the first open-source “Thin Ledger” to replace legacy core systems with a modern, event-driven platform powered by Golang, Kafka and multi-region Databases. They are now seeking a Lead Platform Engineer to own platform engineering ...

Lead Platform Engineer

Hiring Organisation
Trust In SODA
Location
City of London, London, United Kingdom
Startup 📍 London (fully onsite) 💵 £120-150k + Bonus Are you keen to work for a rapidly scaling fintech startup who's AI-native, open-source technology is revolutionising banking infrastructure? Are you keen to work with the most cutting edge technologies in the DevOps space, withing … genuinely AI first prod enviornment? My client is creating the first open-source “Thin Ledger” to replace legacy core systems with a modern, event-driven platform powered by Golang, Kafka and multi-region Databases. They are now seeking a Lead Platform Engineer to own platform engineering ...

Senior Software Engineer, C++

Hiring Organisation
Ripple
Location
London, England, United Kingdom
full software development lifecycle, including architecture, technical design, C++ development, bug fixing, as well as functional and performance validations. Be part of the open-source XRP ledger community, setting high standards for coding, testing, and deployment. Actively participate in code reviews to maintain the high quality … Ability to learn new technologies and languages quickly. Ability to independently solve highly complex problems with creative solutions. Nice to have: Experience in developing open-source software and contributing to collaborative blockchain communities. WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced ...

Scrum Master - Technical Modernisation

Hiring Organisation
Hays
Location
London, UK
Employment Type
Full-time
that includes both Agile and Waterfall methodologies. Key responsibilities will be: Leading technology modernisation projects such as: Migration from Oracle/Infomatica to an open source solution Facilitating sprint ceremonies (planning, stand-ups, retrospectives, reviews) Ensuring backlog clarity and prioritisation in collaboration with Product Owners Tracking progress using … Experience: Minimum 5 years as a Scrum Master in technology transformation projects Strong understanding of Agile frameworks and SDLC Exposure to database migration and open-source technology adoption is a plus The perfect candidate will have experience with PostgreSQL, Apache, and OpenJDK Skills: Excellent facilitation and communication skills ...

Scrum Master - Technical Modernisation

Hiring Organisation
Hays
Location
City Of London, England, United Kingdom
that includes both Agile and Waterfall methodologies. Key responsibilities will be: Leading technology modernisation projects such as: Migration from Oracle/Infomatica to an open source solution Facilitating sprint ceremonies (planning, stand-ups, retrospectives, reviews) Ensuring backlog clarity and prioritisation in collaboration with Product Owners Tracking progress using … Minimum 5 years as a Scrum Master in technology transformation projects Strong understanding of Agile frameworks and SDLC Exposure to database migratio n and open-source technology adoption is a plus The perfect candidate will have experience with PostgreSQL, Apache, and OpenJDK Skills : Excellent facilitation and communication skills ...

Design Verification Engineer

Hiring Organisation
Platform Recruitment
Location
City of London, London, United Kingdom
supported in pushing the envelope alongside top pioneers in verification. Responsibilities Design and maintain robust testbenches and targeted tests using the organisation’s mixed open-source and proprietary verification environment. Develop and own comprehensive verification plans, ensuring coverage goals and test strategies are clear and defensible. Identify … resolve design defects efficiently. Oversee and refine the test infrastructure, including management of test suites, CI pipelines, and the improvement of both internal and open-source tooling. Requirements Strong debugging and analytical capability, able to isolate and resolve complex RTL and testbench issues efficiently. At least two years ...

Design Verification Engineer

Hiring Organisation
Platform Recruitment
Location
London Area, United Kingdom
supported in pushing the envelope alongside top pioneers in verification. Responsibilities Design and maintain robust testbenches and targeted tests using the organisation’s mixed open-source and proprietary verification environment. Develop and own comprehensive verification plans, ensuring coverage goals and test strategies are clear and defensible. Identify … resolve design defects efficiently. Oversee and refine the test infrastructure, including management of test suites, CI pipelines, and the improvement of both internal and open-source tooling. Requirements Strong debugging and analytical capability, able to isolate and resolve complex RTL and testbench issues efficiently. At least two years ...

AI Engineer

Hiring Organisation
CATCHES
Location
London, UK
Employment Type
Full-time
focused on user outcomes, quality, and reliability Build AI workflows covering image generation, guidance models, and agent-like systems Fine tune or train lightweight open source models, including LoRAs and smaller LLMs Implement guardrails, safety mechanisms, and behaviour constraints for LLM-based features Develop evaluation and validation approaches … shipping user-facing software. Hands-on experience with modern AI tooling such as prompting, fine tuning, model configuration, or inference pipelines Comfort working with open source models and related tooling Ability to break down ambiguous problems and deliver practical, testable solutions Willingness to experiment quickly, measure results ...

AI Engineer

Hiring Organisation
CATCHES
Location
South London, UK
Employment Type
Full-time
focused on user outcomes, quality, and reliability Build AI workflows covering image generation, guidance models, and agent-like systems Fine tune or train lightweight open source models, including LoRAs and smaller LLMs Implement guardrails, safety mechanisms, and behaviour constraints for LLM-based features Develop evaluation and validation approaches … shipping user-facing software. Hands-on experience with modern AI tooling such as prompting, fine tuning, model configuration, or inference pipelines Comfort working with open source models and related tooling Ability to break down ambiguous problems and deliver practical, testable solutions Willingness to experiment quickly, measure results ...

Data Engineer - RDF / SparQL

Hiring Organisation
Experis
Location
London Area, United Kingdom
knowledge graphs or graph DBs Experience with RDF, SPARQL , ontologies Familiarity with cross-domain data flow patterns Infrastructure-as-Code (Terraform, CloudFormation) Exposure to open-source data frameworks 👤 The Ideal Contractor Operates independently with minimal oversight Pragmatic, delivery-driven, and quality-focused Excellent communication across technical & non-technical ...

Data Engineer - RDF / SparQL

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
knowledge graphs or graph DBs Experience with RDF, SPARQL , ontologies Familiarity with cross-domain data flow patterns Infrastructure-as-Code (Terraform, CloudFormation) Exposure to open-source data frameworks 👤 The Ideal Contractor Operates independently with minimal oversight Pragmatic, delivery-driven, and quality-focused Excellent communication across technical & non-technical ...

Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
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) What They Offer A company option scheme gives their employees a stake ...

Java Engineer

Hiring Organisation
Profile 29
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £60,000 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) What They Offer A company option scheme gives their employees a stake ...

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 ...

Robotics Engineer

Hiring Organisation
Orange Quarter
Location
London, UK
Employment Type
Full-time
testing, monitoring) Nice to Have Experience with AWS/GCP/Azure Microservices architecture DevOps and infrastructure automation ROS, simulation tools, or IoT development Open-source contributions or portfolio projects Why Join Us Build cutting-edge tools in AI, robotics, and automation. High-impact work with room ...

Robotics Engineer

Hiring Organisation
Orange Quarter
Location
South London, UK
Employment Type
Full-time
testing, monitoring) Nice to Have Experience with AWS/GCP/Azure Microservices architecture DevOps and infrastructure automation ROS, simulation tools, or IoT development Open-source contributions or portfolio projects Why Join Us Build cutting-edge tools in AI, robotics, and automation. High-impact work with room ...

AI Prompt Engineering Consultant

Hiring Organisation
Staffworx
Location
London, England, United Kingdom
model safety, bias mitigation, evaluation frameworks and governance. Background in Computer Science, AI/ML, Engineering, or related fields. Experience deploying or fine-tuning open-source LLMs. TECH STACK LLMs: GPT-4/5, Claude 3.x, Gemini 2.x, Mistral Large, LLaMA 3, Cohere Command R+, DeepSeek Frameworks: LangChain ...

Data Scientist

Hiring Organisation
Tadaweb
Location
London Area, United Kingdom
feature stores for machine learning Proficiency in model deployment using containerization (Docker, Kubernetes) PhD in Data Science, Computer Science, Statistics, Mathematics, or related fields Open-source contributions or research publications in relevant fields What we offer: The opportunity to join a growing tech company, with strong product-market ...

Data Scientist

Hiring Organisation
Tadaweb
Location
City of London, London, United Kingdom
feature stores for machine learning Proficiency in model deployment using containerization (Docker, Kubernetes) PhD in Data Science, Computer Science, Statistics, Mathematics, or related fields Open-source contributions or research publications in relevant fields What we offer: The opportunity to join a growing tech company, with strong product-market ...

Lead ML Engineer

Hiring Organisation
The Fortune Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £85,000 per annum
related discipline. Minimum 3 years of experience writing and deploying production-grade Python. Strong coding skills and passion for data science and open-source technologies. Experience with cloud platforms (AWS, Google Cloud, or Azure) and modern DevOps practices (Infrastructure-as-Code). Proficiency with Git, Unix/Linux ...

AI Engineer

Hiring Organisation
Synechron
Location
London Area, United Kingdom
based AI SDKs Graph Technology: Experience with Knowledge Graphs (Neo4j) or GraphRAG implementations Fine-tuning: Experience utilising LoRA/QLoRA for fine-tuning open-source models (Llama 3, Mistral) on custom datasets Ideal Candidate Profile The successful candidate will be a software engineer who speaks the language ...

AI Engineer

Hiring Organisation
Synechron
Location
City of London, London, United Kingdom
based AI SDKs Graph Technology: Experience with Knowledge Graphs (Neo4j) or GraphRAG implementations Fine-tuning: Experience utilising LoRA/QLoRA for fine-tuning open-source models (Llama 3, Mistral) on custom datasets Ideal Candidate Profile The successful candidate will be a software engineer who speaks the language ...