1 to 25 of 37 Open Source Jobs in London

Data scientist (Data Wrangler)

Hiring Organisation
NHS England
Location
Leeds / London, LS1 4AP, United Kingdom
Salary
£49387.00 to £56515.00
quality insights, and building tools that support better decisions across the NHS. We value modern ways of working, including transparency, reproducibility, agile delivery, and open-source tools. As a Band 7 Data scientist (Data Wrangler), you'll collaborate with multidisciplinary teams, developing advanced data science methods, building data … enable good use of data science.o Champion adoption of modern ways of working to deliver analytical products (such as transparency, reproducibility, adoption of open-source tools, agile project management)o Communicate analytical insight in an engaging and impactful wayo Working in multi-disciplinary teams across NHSE to inject ...

Sales Engineer

Hiring Organisation
Tiptap
Location
City of London, London, United Kingdom
complexity into fun. About Tiptap Chances are high that you've already used Tiptap without knowing it in one of the apps you have open daily. With 37k GitHub stars and over 45M npm downloads per month, Tiptap is the most popular open-source editor framework worldwide … build, every prospect you unblock turns into revenue, into products our customers ship, and into the signal that shapes our roadmap. Our Core Values Open Source: We believe in the power of open source and community collaboration. Transparency: We share knowledge openly. Autonomy and Impact: Your ...

Linux Kernel Engineer

Hiring Organisation
X4 Group
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£50.00 - £70.00 per hour
High Daily Rate We are seeking an experienced Linux Kernel Engineer with a proven track record of contributing to the Linux mainline through upstream open-source development. This is a unique opportunity to join one of the world's leading semiconductor organisations, working at the forefront of embedded … Doing Developing and enhancing Linux kernel functionality for cutting-edge semiconductor technologies. Contributing code directly to the Linux mainline and engaging with the upstream open-source community. Working closely with platform, firmware, and hardware engineering teams to deliver high-performance solutions. Driving kernel optimisation, debugging, and feature development ...

Security Architect

Hiring Organisation
TXP
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £750 per day
candidate will have come from a strong technical background, and have an understanding of attack vectors for high threat environments, across both proprietary and open-source technology stacks. You will advise and enable technical teams to make security decisions and provide advice and guidance, ensuring the effective … programmes, projects or a product-centric organisation. You will have a good understanding of a broad range of industry-standard technologies, both proprietary and open source, across a diverse range of Microsoft and Linux-based deployments, across physical, virtual and containerised compute. You will have experience in securing ...

Principal / Lead Engineer

Hiring Organisation
Intec Select Ltd
Location
London, Billingsgate, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £700/day
make and document key technical decisions Promote secure-by-design principles across all aspects of platform development Establish and maintain core engineering tooling, including source control, CI/CD pipelines, infrastructure-as-code, and automated testing frameworks Platform Engineering Design and implement identity and access management solutions with robust … workflow, and operational capabilities to support governance and compliance requirements Implement networking, monitoring, and security controls for highly secure environments Evaluate and integrate appropriate open-source technologies and third-party components Contribute to the design and delivery of scalable, resilient, and maintainable distributed systems Collaboration & Team Development ...

Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
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 have resided ...

Principle Java Engineer

Hiring Organisation
Profile 29
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£90,000
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 have resided ...

Senior Software Engineer

Hiring Organisation
Zaizi LTD
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£75,000
skills in web front end technologies such as HTML, CSS, Bootstrap Golang Spring Boot Docker Kubernetes Atlassian Build tools: Maven, Gradle, Ant Familiar with source control systems, such as GIT, including branching, merging, etc. Testing: TDD, unit testing, JUnit, Mockito, Cypress Good knowledge of relational databases such as MySQL … scripts, store procedures Shift to the left: Functional test automation (API testing, UI testing [cucumber, nightwatch]) Nice to have skills: AWS Knowledge of Open Source BPMN workflow engines (Camunda, Activiti or Flowable) Experience on a front-end javascript framework such as react, angular or vue.js RedHat OpenShift ...

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 ...

OSS/BSS Solution architect

Hiring Organisation
IBU CONSULTING LTD
Location
London, United Kingdom
Employment Type
Contract
distributed systems, transaction management and telemetry pipelines - Understands how state is managed across multiple systems, how rollbacks occur, compensation patterns, fallback handling TMF Open API - Customisation and extension of schemas (extension knowledge is critical) - Understands their role in inter-component integration, how to change schemas, sync and async patterns … Deep understanding of TMF SID (Product/Service domains) and TMF Open APIs used across BSS/OSS HIGHLY DESIRABLE Cloud Services & Observability - Experience designing for multi-cloud, hybrid and on-prem environments - Skilled in cloud-native patterns (PaaS, SaaS, serverless, containers, orchestration) - Cloud platforms (AWS or GCP): commonly ...

Technical Architect

Hiring Organisation
Inspire People
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
DDaT standards. Lead technical specialists across multiple projects, solving complex architectural challenges and owning the technical design of services. Design and assure secure, open-source and user-centred systems, including integration, interoperability, cloud quality, security and performance. Provide technical governance, present designs to boards such as the Technical ...

Lead Data Platform Engineer (DV Clearable) - Up to £140,000

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Permanent
within a secure, cloud-native environment. You will play a key role in building scalable, resilient, and low-latency data platforms, working with modern open-source and commercial technologies while driving engineering excellence across the team. Key Responsibilities Design, develop, document, and deploy backend services and platform features … including: Continuous delivery Clean code principles Automated testing & TDD Code reviews and documentation Experience working in Agile/DevOps environments Proficiency with Git-based source control (GitHub/GitLab) Experience working with Big Data technologies Strong hands-on experience with AWS or other public cloud platforms Desirable Skills Experience ...

AWS Technical Architect

Hiring Organisation
Opus Recruitment Solutions
Location
Remote work, South Bank, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£0 - £600/day
solid understanding of public sector governance and assurance processes. Strong technical architecture background - experience designing secure, scalable systems using modern technologies (cloud, open source, and languages like Java, Python, JavaScript or Ruby). Leadership & communication skills - able to guide teams, influence stakeholders, and clearly communicate with both technical ...

Forward Deployed Engineers

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500 per day + Inside IR35
accuracy, latency, and reliability Implement observability and monitoring for agent lifecycle AI Platform Integration Integrate with AI providers (e.g., OpenAI, Anthropic, Google Vertex, open-source models) Build abstraction layers to support multi-model and multi-provider architectures Optimize model usage for performance, cost, and latency Cloud-Native Development ...

AI Solution Architect - Senior Manager/Associate Director Capital Markets

Hiring Organisation
Datatech Analytics
Location
Central London, London, United Kingdom
Employment Type
Permanent
containerised and GPU enabled environments Supporting AI implementation programmes from proof of concept through to enterprise deployment and optimisation Evaluating and selecting technologies across open source and commercial platforms Designing and integrating AI solutions into existing enterprise systems and applications Working with AI Engineers, Data Scientists and technical ...

Lead Cloud Engineer

Hiring Organisation
Natural Resourcing Ltd
Location
West London, London, United Kingdom
Employment Type
Permanent, Work From Home
looking for someone who has demonstrable experience of automating the software delivery pipeline within a highly scalable system that relies heavily on open source technologies. At Zaizi, we thrive on solving complex challenges through creative thinking and the latest tools and tech. Our culture is inclusive, modern, friendly ...

Full Stack Engineer

Hiring Organisation
McGregor Boyall
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£70,000 - £100,000 per annum
event-driven architectures Strong understanding of software development best practices Desirable: Financial services or trading systems experience Messaging technologies (AMQP, Solace, Pub/Sub) Open-source contributions Regulatory project experience This is an excellent opportunity for an engineer looking to work on large-scale, business-critical systems while ...

Data Engineer (DV Clearable) - Up to £140,000 + Benefits

Hiring Organisation
Sanderson Government and Defence
Location
London, United Kingdom
Employment Type
Permanent
critical role in designing and building a secure, scalable data platform, enabling both batch and real-time data processing using modern commercial and open-source technologies. This is an excellent opportunity to work on mission-critical systems, solving complex data challenges in a highly secure environment. Key Responsibilities ...

Technology Lead, AI Lab

Hiring Organisation
167 Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£150,000 - £200,000 per annum
pipelines using vector databases, embeddings, and enterprise data sources Develop agent-based workflows, orchestration layers, and multi-step reasoning systems Work extensively with open-source and commercial LLM ecosystems, including Hugging Face models and tooling Implement prompt engineering, evaluation frameworks, and performance optimisation strategies Architect secure, scalable GenAI ...

AI Technical Architect

Hiring Organisation
Inspire People
Location
South West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£85,000
DDaT standards. Lead technical specialists across multiple projects, solving complex architectural challenges and owning the technical design of services. Design and assure secure, open-source and user-centred systems, including integration, interoperability, cloud quality, security and performance. Provide technical governance, present designs to boards such as the Technical ...

Cloud Architect- eDV Cleared

Hiring Organisation
Searchability NS&D
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£65,000 - £120,000 per annum, Negotiable
commute to London.- Experience as a hands-on cloud architect CLOUD ARCHITECT ESSENTIAL SKILLS- Expertise in delivering AWS Cloud native solutions- Background in Open-source technologies and frameworks- Experience with micro-service based architectures- Experience working with structured architecture approaches (TOGAF or SAFe)- Leadership and stakeholder management experience ...

Full Stack Engineer -TOP BANK!!

Hiring Organisation
Robert Half Limited
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
technologies. Tech & Projects Include: Python (FastAPI/Flask) JavaScript, REST APIs & SQL Server AI & LLM applications RAG pipelines & agentic AI workflows Locally hosted open-source LLMs Microsoft Power Platform LangChain, LangGraph, Semantic Kernel & Copilot Studio exposure Why this role stands out: Real AI engineering projects - not just ...

Software Team Lead - eDV Cleared

Hiring Organisation
Searchability NS&D
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£60,000 - £100,000 per annum
mentoring development teams Experience with public cloud technologies Experience translating user requirements into technical requirements Must be able to use a wide variety of open-source technologies Experience with CI and analysis systems Experience with Bids and Tenders is preferred but not essential TO BE CONSIDERED.... Please either ...

Senior Android Developer

Hiring Organisation
Revolut
Location
City of London, London, United Kingdom
Employment Type
Permanent
Fluency in English Nice to have A degree in computer science A perspective on mobile development best practices A GitHub portfolio showcasing personal or open-source projects Experience in financial services Familiarity with test-driven development ...

Cloud Architect

Hiring Organisation
Inspire People
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£71,590 - £85,413 per annum, Pro-rata, Inc benefits
DDaT standards. Lead technical specialists across multiple projects, solving complex architectural challenges and owning the technical design of services. Design and assure secure, open-source and user-centred systems, including integration, interoperability, cloud quality, security and performance. Provide technical governance, present designs to boards such as the Technical ...