Open Source Jobs in the UK

526 to 550 of 665 Open Source Jobs in the UK

Graduate / Junior Software Engineer – Mission-Led Start-Up – £35k–£50k + Benefits

London Area, United Kingdom
Hybrid/Remote Options
Kioni Talent
developing your technical skills as the company scales What You’ll Bring A STEM degree (or equivalent qualification) Evidence of your passion for technology — whether through personal projects, internships, open-source contributions, or hackathons Familiarity with at least one programming language (JavaScript, TypeScript, Python, etc.) Willingness to learn React, TypeScript, Next.js, Tailwind CSS, and AWS A collaborative mindset More ❯
Posted:

Senior Network Engineer - Systems Integrator

Isle of Man, United Kingdom
Hamilton Barnes Associates Limited
MPLS, VXLAN, EVPN, and large-scale routing protocols Hands on expertise with Juniper MX, Cisco ASR, and enterprise-grade firewalls Automation mindset - comfortable with Terraform, Ansible, Puppet Knowledge of open-source networking tools and a willingness to innovate Ideally CCNP/CCIE-level knowledge (formal certs not required, but rewarded with pay rises) Ability to thrive in a More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Machine Learning Quant Engineer - Investment banking/ XVA

London, South East, England, United Kingdom
Harvey Nash
income, derivatives) Experience with distributed computing frameworks (e.g., Spark, Dask) and cloud-native ML pipelines Exposure to LLMs, graph learning, or other advanced AI methods Strong publication record or open-source contributions in ML or quantitative finance Please apply within for further details or call on Alex ReederHarvey Nash Finance & Banking To From Record Yes No Always use More ❯
Employment Type: Full-Time
Salary: £1,000 - £1,200 per day
Posted:

Salesforce Solution Lead - £70,000 + Benefits

England, United Kingdom
Hybrid/Remote Options
Oliver James
principles, Design Patterns, and Salesforce best practices. Expertise with Apex, SOQL/SOSL, Flows, Lightning Web Components, Triggers, and Azure DevOps. A passion for continuous learning - whether through blogging, open-source contributions, or tech community involvement. Excellent communication and collaboration skills, with the ability to influence and work across diverse teams. A growth mindset and curiosity to innovate More ❯
Posted:

Senior Frontend Engineer (Product) - AI SaaS - London (Hybrid)

London Area, United Kingdom
Hybrid/Remote Options
Stax - Deeptech Talent
CSS methodologies (Tailwind, CSS Modules, CSS-in-JS), and modern testing frameworks. Passion for developer experience, tooling, and mentoring. Degree in Computer Science or equivalent experience. Bonus points for: Open source contributions to front-end tooling, design systems, or data-visualisation libraries. Experience with WebSockets, PWAs, offline support, or design-token pipelines. How They Work Speed with craftsmanship More ❯
Posted:

Senior Frontend Engineer (Product) - AI SaaS - London (Hybrid)

City of London, London, United Kingdom
Hybrid/Remote Options
Stax - Deeptech Talent
CSS methodologies (Tailwind, CSS Modules, CSS-in-JS), and modern testing frameworks. Passion for developer experience, tooling, and mentoring. Degree in Computer Science or equivalent experience. Bonus points for: Open source contributions to front-end tooling, design systems, or data-visualisation libraries. Experience with WebSockets, PWAs, offline support, or design-token pipelines. How They Work Speed with craftsmanship More ❯
Posted:

Senior Network Software Engineer C Linux - Hybrid / Remote

Edinburgh, Midlothian, United Kingdom
Hybrid/Remote Options
Saxon Recruitment
configuration and observability capabilities. What you'll need 5+ years experience with the ability to write quality C code under Linux with a good understanding of this OS and open source software development, debugging Good understanding or experience of developing Routing Protocols, or Networking for Mobile, WIFI, or Network Components in C - eg, BGP, OSPF, IS-IS, EVPN More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Network Software Engineer

Edinburgh, Midlothian, Scotland, United Kingdom
Hybrid/Remote Options
Saxon Recruitment Solutions
configuration and observability capabilities. What you'll need 5+ years experience with the ability to write quality C code under Linux with a good understanding of this OS and open source software development, debugging. Good understanding or experience of developing Routing Protocols, or Networking for Mobile, WIFI, or Network Components in C eg, BGP, OSPF, IS-IS, EVPN More ❯
Employment Type: Permanent, Work From Home
Salary: £95,000
Posted:

Senior Test Engineer - National Security

Manchester, Lancashire, United Kingdom
CACI Limited
responsibilities, the list below gives a flavour of some of the tasks you may be asked to undertake; Use a wide range of technologies, specialising in the use of open source Tools and Frameworks. Manual & Automation software testing Working with DevOps and agile methodologies - TDD, BDD, ATDD and continuous testing through CI/CD pipelines and supported by More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Golang Engineer

London, United Kingdom
Just Eat
bring to the table? Proven Go Expertise: commercial experience with Go, demonstrating a strong understanding of its idioms and best practices. Bonus: engagement with the Go community, whether through open-source contributions, meetups etc. A solid grasp of microservices architecture , understanding the advantages and challenges. Experience with event-driven design and reactive systems is also highly valued. A More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Senior Scala Developer

Middlesex, south east england, united kingdom
Hybrid/Remote Options
Sky
department is leading the way in many areas of data. The department has designed and built a world-leading real time data analytics platform, using the latest cloud and open-source technologies. We stream billions of events each day to enable our partner teams across Sky and Comcast deliver customer-led sophisticated insights and analytics. What you'll More ❯
Posted:

Software Architect

Cowes, Isle of Wight, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Portsmouth, Hampshire, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

East Cowes, Isle of Wight, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Yeovil, Somerset, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

City, Bristol, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Rhosneigr, Gwynedd, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Lincoln, Lincolnshire, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Rochester, Kent, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Christchurch, Dorset, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Inverkeithing, Fife, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Kilmarnock, Ayrshire, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Bedale, Yorkshire, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Architect

Prestwick, Ayrshire, United Kingdom
BAE Systems
requirements. Using modern operating systems, tools, and design patterns, you will create robust, resilient, scalable and secure middleware and application layers for hardware. You'll leverage both licensed and open-source tools, ensuring compliance with OSS guidance, and work with the wider team to ensure a smooth implementation, integration and test process. Our workplace in Cowes is an More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:
Open Source
10th Percentile
£48,165
25th Percentile
£53,688
Median
£73,801
75th Percentile
£86,375
90th Percentile
£117,625