1 to 25 of 77 Open Source Jobs in the UK excluding London

OS Software Developer

Hiring Organisation
Guidant Global
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £600 per day
Software Engineer - Open Source Specialist Location: Gloucestershire Contract Type: Contract About the Role Guidant Global is partnering with our client to recruit an experienced Software Engineer with strong open-source expertise . You'll join a small, highly skilled technical team delivering bespoke, open-source … code quality, and delivery standards Required Qualifications Bachelor's degree in Computer Science, Software Engineering, or equivalent experience Proven experience contributing to or managing open-source projects Experience & Technical Skills Essential Strong proficiency in Go, Python, or JavaScript Experience with Linux-based operating systems (RHEL, Rocky, Debian, Ubuntu ...

Principal Consultant & Microsoft MVP — Tech Innovator

Hiring Organisation
Jobleads-UK
Location
Leeds, England, United Kingdom
unwavering dedication to knowledge sharing, community building, and technical innovation within the software development ecosystem. His contributions span multiple channels, from creating widely-adopted open-source security tools to producing educational content that reaches developers across the globe. Jamie’s community impact is exemplified through The Modern .NET … downloads), United Kingdom (15%), Canada (7%), and Asia (30%), providing accessible technical education to developers at all career stages. Technical excellence through open-source contribution forms another cornerstone of Jamie’s recognition. His OwaspHeaders.Core library has achieved remarkable success with over 1.2 million downloads, providing essential web application ...

Audio Consultant Engineer - Linux Audio Stack

Hiring Organisation
MicroTECH Global Ltd
Location
Cambridgeshire, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
join a highly technical engineering team. This role is ideal for someone who enjoys working at the intersection of embedded Linux, audio architecture, open-source technologies, and customer-facing consulting. You will play a key role in designing, implementing, debugging, and optimizing Linux-based audio solutions for real … world products while collaborating with both customers and upstream open-source communities. Linux Audio Architecture & Development Design, integrate, and deploy robust embedded Linux audio systems for commercial products. Implement, configure, and optimize audio solutions using PipeWire, WirePlumber, and ALSA. Develop and troubleshoot audio pipelines, routing, synchronization, buffering ...

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 ...

Software Engineering Manager - Container and Virtualisation Infrastructure

Hiring Organisation
Jobleads-UK
Location
Douglas, Northern Ireland, United Kingdom
Software Engineering Manager - Container and Virtualisation Infrastructure Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. … stakeholders Advocate and advance modern software development practices Participate in the engineering process through code and architectural review Engage with teams at Canonical, the open source community and partners Work from home with global travel for 4 to 6 weeks per year for internal and external events What ...

Graduate Software Engineer

Hiring Organisation
Alces Software Ltd
Location
Bicester, Oxfordshire, United Kingdom
Employment Type
Permanent
Salary
£28000 - £30000/annum
UK. If you’ve spent your own time building homelabs, daily-driving Linux, tinkering with kernels, scripting everything, self-hosting services, or contributing to open-source projects — this role is built for you. About Alces Software : We work with cutting-edge HPC (High Performance Computing) and AI infrastructure … experienced Linux engineers Genuine opportunity to grow into a strong Linux-focused software engineering career Relaxed working environment with a team that actually understands open-source culture Key Responsibilities of the Graduate Software Engineer role: Research, design, and implement software that runs on Linux-based ...

OS Software Developer

Hiring Organisation
Guidant Global
Location
Gloucester, Gloucestershire, UK
Below covers everything you need to know about what this opportunity entails, as well as what is expected from applicants. Software Engineer - Open Source Specialist Location: Gloucestershire Contract Type: Contract About the Role Guidant Global is partnering with our client to recruit an experienced Software Engineer with strong … open-source expertise . You'll join a small, highly skilled technical team delivering bespoke, open-source-driven solutions across multiple platforms, xkybehq including cloud environments and disconnecte Please click on the apply button to read the full job description ...

Principal Observability & Cloud Platform Engineer

Hiring Organisation
Synergetic Recruitment Group Limited
Location
Cambridge, Cambridgeshire, East Anglia, United Kingdom
Employment Type
Permanent
architecture: metrics, logs, traces, telemetry pipelines, service mesh and developer experience for thousands of services and millions of devices. You'll overhaul core open-source components, storage layers, query paths for performance, cost and reliability, and push improvements back upstream to CNCF projects. This is hands-on architecture … level ingestion and hundreds of millions of active series, and you built or scaled it, not just watched it run. Depth across the open-source observability stack: Prometheus, Grafana, and large-scale metrics (Thanos, Mimir, Cortex or VictoriaMetrics); logs (Loki/ELK/OpenSearch); traces (Tempo). Kubernetes ...

GPU Consultant

Hiring Organisation
MicroTECH Global Ltd
Location
Cambridgeshire, England, United Kingdom
Employment Type
Full-Time
Salary
£99,000 - £100,000 per annum
role combines low-level systems programming with open source collaboration. You will work alongside experienced graphics engineers, develop genuine expertise in how modern GPUs work from the kernel up, and grow into a contributor that the broader open source graphics community knows by name. Location: Fully … Nice to have Git - mailing list patch workflow (not just GitHub PRs) Comfortable reading specs and documentation independently Not afraid of large unfamiliar codebases Open source contribution mindset - code review, public communication, upstream first Existing Mesa or kernel patch history Experience with a specific GPU family (ARM/ ...

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 ...

Solution Architect

Hiring Organisation
We Are Fr Group
Location
Gloucester, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
experienced Solution Architect to drive the design and implementation of innovative digital services within the UK public sector. This role focuses on leveraging modern open-source technologies within Agile and DevOps environments to deliver high-quality, scalable solutions. Key Responsibilities The responsibilities below outline the core expectations … continuously improve ways of working Technical Expertise: You should have strong commercial experience across several of the following areas: - Solution and technical architecture design - Open-source technologies - Cloud platforms (preferably AWS) - Security principles and best practices - Identity and access management (e.g. OAuth, Cognito, OIDC) - Containerisation and orchestration tools ...

Senior Design Verification Engineer

Hiring Organisation
MicroTECH Global Ltd
Location
Cambridge, Cambridgeshire, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
join early and genuinely shape verification methodology, standards, and technical direction as the team scales. Position Overview The work is focused on production-grade open-source silicon , including the Ibex RISC-V CPU and OpenTitan security platform , developed in collaboration with world-leading partners such as Google. This … testbenches using SystemVerilog and UVM Develop test and coverage plans for new and updated designs Triage and debug nightly regressions Review contributions to open-source projects Enhance test and CI infrastructure Collaborate on academic/industry publications Stay current with verification best practices and introduce improvements Candidate Requirements ...

Director, Systems Software & Kernel Performance

Hiring Organisation
Jobleads-UK
Location
Cambridge, England, United Kingdom
bring together expertise across kernel, drivers, and userspace to deliver meaningful improvements in real-world systems , while collaborating across Arm and the wider open-source ecosystem. WHAT YOU’LL DO You’ll set direction, enable teams, and drive execution across multiple domains. In practice, this includes: Leading … Media, graphics, or multimedia subsystem experience Android or userspace performance exposure Familiarity with Arm architecture or hardware/software co-design Experience working with open-source communities WHY JOIN ARM? This role offers the opportunity to lead across a broad and strategically critical part of Arm’s software ...

Embedded Linux Engineer

Hiring Organisation
Platform Recruitment
Location
CB3, Cambridge, Cambridgeshire, United Kingdom
Employment Type
Permanent
Salary
£60000 - £70000/annum
Embedded Linux Engineer : Porting the OS, integrating with ODM software Fixing build issues when moving to new platforms and applying patches to debug open-source software Researching technical growth Requirements: Highly experienced with embedded build systems, preferably buildroot, OpenWRT, or other WRT-Variants Experienced with CLANG and very … confident working with patches on open source software Strong understanding of network protocols Desirable skills for an Embedded Linux Engineer: Experience developing Linux kernel modules and using the kernel build system Knowledge of the Wireless and Linux network stack Experience managing the process from a reference board ...

Cyber Security Manager - Vulnerability Management

Hiring Organisation
Statera Talent
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £120,000 per annum
broader than simply managing scan outputs. The successful candidate will help bring together security findings from across infrastructure, cloud, application security, open-source software and testing activity, then ensure the business has a clear, risk-based view of what needs to be prioritised. The role You will … Leading a global vulnerability risk programme Bringing structure and consistency to how vulnerabilities are assessed and prioritised Overseeing findings from infrastructure, cloud, application security, open-source software and security testing Helping define what should be treated as a genuine business risk priority Working with technical teams to support ...

LLM / GenAI Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Manchester, UK
Employment Type
Full-time
Vector databases and embeddings Git, CI/CD, and DevOps practices Desirable Experience Experience with Azure AI/Microsoft Copilot stack Fine-tuning open-source models (e.g., LLaMA, Mistral) Experience with multi-modal models (text, image, audio) Front-end integration experience (e.g., React-based AI applications) Exposure ...

LLM / GenAI Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
Manchester, Lancashire, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
Vector databases and embeddings Git, CI/CD, and DevOps practices Desirable Experience Experience with Azure AI/Microsoft Copilot stack Fine-tuning open-source models (e.g., LLaMA, Mistral) Experience with multi-modal models (text, image, audio) Front-end integration experience (e.g., React-based AI applications) Exposure ...

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 ...

Backend Software Engineer

Hiring Organisation
We Are Fr Group
Location
Cheltenham, Gloucestershire, South West, United Kingdom
Employment Type
Permanent
Salary
£800 - 850 per day
Design, develop and engineer software and products for customers across secure environments. Produce creative and innovative solutions to customer problems. Integrate and develop against open source components and frameworks. Understand and apply new and emerging technologies. Key Technologies You will use a range of technologies - some ...

InterPro/Pfam Software Project Leader

Hiring Organisation
EMBL-EBI
Location
Saffron Walden, Essex, South East, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£75,000
Background in bioinformatics or life sciences software development. Familiarity with Pfam, InterPro, or related protein family/domain resources. Track record of contributing to open-source projects. Apply now! Benefits and Contract Information Financial incentives: depending on circumstances, monthly family/marriage allowance of £278 monthly child allowance ...

Assoc Application Analyst

Hiring Organisation
Visa
Location
Basingstoke, Hampshire, UK
Employment Type
Full-time
global operations team supports the Real-Time processing operations for Visa Inc., including Visa's TPF based authorization platform (VIP/VisaNet) and the open system based OVN (Open VisaNet) platform. As a member of the Authorization Operations team, the Associate Systems Analyst you will be part … pertinent system information and work with our internal support teams to isolate and resolve the majority of events affecting a variety of mainframe, open system and distributed hardware and software systems. As a team member, you will document support procedures, managing each issue through resolution or turnover in order ...

Senior Engineer (Full Stack) TLNT1 NI

Hiring Organisation
TP ICAP Group Services Ltd
Location
Belfast, UK
flows within an enterprise environment. Continuous Delivery Agile tooling to support team delivery, such as JIRA and other project management systems. Open to innovative ideas/experiences and ability to create new ideas, approaches or insights. Seeks opportunities for improvements. Demonstrates high levels of energy in seeking … company values. Excellent attention to detail, highly organised with a proactive approach. Strong analytical ability and innovative problem solving skills. Software Design Patterns. Source control (Git). Desired: OOP \ SOLID Principles. Demonstrable experience of C# (.Net 8+) in a professional environment. Contribution to open-source projects. Experience ...

Technical Architect

Hiring Organisation
Inspire People
Location
Edinburgh, Midlothian, Scotland, 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 ...

Technical Architect

Hiring Organisation
Inspire People
Location
Birmingham, West Midlands, 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 ...