Senior Software Development Engineer jobs in Wales

HM Land Registry (HMLR) is undertaking one of the largest transformation programmes in government, modernising the digital systems that support over £7 trillion of property ownership. As a Senior Software Developer, you'll take a leading role in designing and delivering the systems and services that power this national infrastructure. Salary up to £60,800, 29% employer pension contribution plus...

About PostGrid: PostGrid is a global leader in enterprise SaaS platform for automated offline communications. Our robust APIs empower organizations to create, personalize, and dispatch physical mail letters, postcards, checks, and more to any address on the globe without ever touching an envelope, while ensuring clean address data. Operating at massive scale across multiple regions, we’re...

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

Senior Full Stack Software Developer - Cwmbran (1 day per week) Salary: £38,000 - £46,000 Join a modern, forward-thinking development team delivering high-quality applications across a complex digital environment. This role suits an experienced full stack developer who enjoys leading from the front - coding, mentoring, and driving best practices across multiple projects. The Role You'll...

Senior Software Developer (C#, .NET) Newport - Hybrid £36,000 - £47,000 VIQU are working in partnership with a leading organisation who are seeking a Senior Software Developer with a strong focus on integration and backend development. The successful Senior Software Developer will be experienced with a background in C# and .NET technologies who are capable at building configurable systems and...

Senior Software Developer - Java / Python with Delphi We’re looking for an experienced Software Engineer (Java/Python) to join a high-profile government project focused on modernising and integrating complex systems within a secure environment. You’ll work across backend development, integration and automation – with occasional support for legacy Delphi components as part of wider platform...

Job Description Your new company Join a purpose-driven organisation at the heart of a thriving community, where technology is being harnessed to transform lives. This values-led public sector organisation is embarking on a bold digital transformation journey, with a clear mission to deliver outstanding services to end-users through innovation and excellence. With a strong commitment to social...

Senior Software Developer required by a successful software company with an international client base. The Senior Software Developer will be responsible for full stack development with C# and React as part of the ongoing evolution of the company's core SaaS product as they evolve a traditional monolith architecture towards a modular monolith. Key experience - Extensive C# experience - SQL...

Role: Mid/Senior Software Engineer Salary: £70,000 - £85,000 Industry: FinTech Working Model: Remote First (London HQ - 1 day per quarter in office) About the Company WeDo have partnered with a high-growth FinTech scale-up reshaping embedded finance. Circa 250-300 Employees. Platform in production for 8-10 years. They’re entering “scale-up” phase and now initially need 4 engineers to join 6...

Senior Software Engineer - Go/React/AWS - Remote - New Role (REF46) A leading organisation in the Gloucestershire area requires a Senior Software Engineer to join its growing team. Suitable candidates will have strong Go and React experience coupled with AWS experience. The successful candidate will have the following: - Substantial experience in Go/Golang. - Proficiency in React and knowledge...

Senior Software Engineer / Developer (TypeScript Node.js) Remote UK to £80k Are you a senior, hands-on Software Engineer looking for an opportunity to take ownership and progress your career at a scaling tech company? You could be joining a growing games company that combines state of the art technology, gaming and luxury fashion. What's in it for you: - Salary to £80k - Remote working -...

Senior Software Engineer | Digital Identity, Supply Chain & FinTech Competitive salary + share options UK - Remote We’re partnering with an innovative authentication and automation platform operating at the intersection of digital identity, cybersecurity, and financial technology. Backed by experienced founders and VC investment, the company is scaling its first commercial applications in...

Senior Backend Engineer | Fully Remote | Full Time Are you a seasoned backend engineer with a passion for building scalable APIs and robust backend systems? We’re looking for a Senior Backend Engineer to join our development team and help shape the future of our platform. What You’ll Do - Design, develop, and maintain high-quality APIs and backend services - Architect scalable software...

About PostGrid: PostGrid is a global leader in enterprise SaaS platform for automated offline communications. Our robust APIs empower organizations to create, personalize, and dispatch physical mail letters, postcards, checks, and more to any address on the globe without ever touching an envelope, while ensuring clean address data. Operating at massive scale across multiple regions, we’re...

Job Description HM Land Registry (HMLR) is undertaking one of the largest transformation programmes in government, modernising the digital systems that support over £7 trillion of property ownership. As a Senior Software Developer, you'll take a leading role in designing and delivering the systems and services that power this national infrastructure. Salary up to £60,800, 29% employer pension...

Senior Software Developer - Java / Python with Delphi We’re looking for an experienced Software Engineer (Java/Python) to join a high-profile government project focused on modernising and integrating complex systems within a secure environment. You’ll work across backend development, integration and automation – with occasional support for legacy Delphi components as part of wider platform...

🚀 About Webigence and Spark Travel Webigence has 25 years of experience crafting UX‑first, often highly complex software. Our engineers pair forward‑thinking agile practices with an obsession for intuitive design, shipping products that feel effortless even when the logic underneath is anything but. Alongside a handful of long‑standing third‑party clients, we’re scaling our own SaaS...

Senior Software Engineer - Go/React/AWS - Remote - New Role (REF46) A leading organisation in the Gloucestershire area requires a Senior Software Engineer to join its growing team. Suitable candidates will have strong Go and React experience coupled with AWS experience. The successful candidate will have the following: - Substantial experience in Go/Golang. - Proficiency in React and knowledge...

Role: Senior Java Software Engineer (Back-end) Salary: £85,000–£100,000 + equity + bens Location: UK Remote Sector: FinTech Start-Up About the Company Wedo are collaborating with a FinTech start-up. The founders have an unrivalled track-record of scaling successful businesses, largely across the FinTech sector. This product, focusing on Wealth Management, is set to disrupt the sector and is...

Senior Software Developer required by a successful software company with an international client base. The Senior Software Developer will be responsible for full stack development with C# and React as part of the ongoing evolution of the company's core SaaS product as they evolve a traditional monolith architecture towards a modular monolith. Key experience - Extensive C# experience - SQL...