Bytes Software Services Jobs

Mid-Senior Fullstack Developer (Python/React)Up to £80k plus equity1 day p/week in LondonFull-Stack Developer (Python / React)Fullstack Developer (Python/React) – Would you like to work for a fast-growing VC-backed energy technology startup who are currently looking for a Full-Stack Developer to join its expanding product development team.They curr...

Senior C++ Software EngineerStaff-level individual C++ contributor with a clear path to technical leadership C++ server-side engineering handling global transaction volumes Hybrid working with genuine flexibility to work from home 35 days holiday, private medical, pension matched to 5%, and more An engineering-led environment, free of bureaucracy, ...

Staff Software Engineer with C++ Location: Belfast | Hybrid At a Glance Staff-level C++ engineering role focused on high-level, object-oriented development rather than low-level systems programming Design and development of a high-volume payment processing gateway Technical leadership: mentoring, driving best practice, shaping the roadmap Coll...

Senior Java Developer | Belfast | £65,000-£80,000Senior back-end developer role within a newly established Belfast trading technology hub Java-focused; real-time exchange connectivity, event-driven architecture, distributed systems Small founding team of 4 engineers; site lead already in place (placed by Ocho) £65,000-£80,000 | Belfast based Ground...

Principal Python Engineer Northern Ireland ( Remote ) Permanent Full-time Engineering The Opportunity Our client builds software that operates at the sharp end of energy markets ,trading platforms, monitoring systems, and optimisation tools running across the UK, Ireland, and Europe. The infrastructure is complex, the data volumes are serious,...

Python Developer (FinTech) - Belfast (Hybrid) - Contract We are looking for an experienced Python Developer with a strong FinTech or Financial Services background to join a Belfast-based team on an initial 3-6 month contract . Location: Belfast (Hybrid)Contract: 3-6 MonthsDaily Rate Essential Skills5+ years of commercial Python development e...

Principal Software Architect / Engineering Manager Belfast | Hybrid | Permanent | Competitive + Leadership Bonus This one is different. Most architecture roles are advisory. This one has teeth. Our client is on a genuine platform transformation journey, moving away from complex legacy systems toward a modern, cloud-native architecture,and they n...

.NET Developer, .NET 10.0, C# 14, Agile - London(Tech stack: .NET Developer, .NET 10.0, ASP.NET Core, C# 14, Azure, Angular 21, Vue.js, TypeScript, Multithreading, RESTful, ASP.NET Core Web API, EF Core 10.0, Programmer, Full Stack Engineer, Architect, .NET Developer)Our client is a global innovator who builds software products and apps that are de...

Do you have 3-5 years experience and are looking for your next challenge? Have you been developing with Core Java without the use of frameworks?Mid Java Developer – Leading FinTechLocation – hybrid in London 3 days a weekSalary – up to £90k + bonusWe are working with our long-term partners on the hunt for numerous Mid-level Java Developers as they ...

Do you have 3-5 years experience and are looking for your next challenge? Have you been developing with Core Java without the use of frameworks?Mid Java Developer – Leading FinTechLocation – hybrid in London 3 days a weekSalary – up to £90k + bonusWe are working with our long-term partners on the hunt for numerous Mid-level Java Developers as they ...