> Markdown version of [/jobs/ext/335365-software-engineer](https://www.wearedevelopers.com/jobs/ext/335365-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - **Company:** Harrington Starr - **Location:** London, UK - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Microsoft Azure, C Sharp (Programming Language), Cloud Computing, Systems Development Life Cycle, SQL Databases, Working Model 2D, Service Stack, Microservices - **Published:** June 6, 2026 - **Apply:** https://www.apply4u.co.uk/jobs/x/38365400/ ## About the Role The RoleThis is an excellent opportunity for an experienced Software Engineer - ideally with a background in financial technology or FX - to join a high-performing engineering team within a scaling fintech. You'll be instrumental in developing and enhancing the company's core trading and treasury systems, building new features, improving performance, and driving integration across their technology stack. Key ResponsibilitiesDevelop and maintain software across the full stackContribute to architecture and design decisionsSupport, optimise, and maintain production codeResearch and integrate new technologiesFoster a culture of engineering excellence and continuous improvement Key Requirements5+ years' experience working with C#/.NETExperience developing front and middle office systemsStrong SQL skillsExperience with cloud-native solutions (Azure or AWS)Knowledge of event-driven, microservices architecturesFull SDLC experience - from design through delivery and support Key BenefitsJoin a fast-scaling fintech building next-generation financial technologyWork on complex, high-impact systems handling large-scale transactionsCollaborative, innovative, and growth-oriented team cultureHybrid working model with flexibility and autonomy ## Related Videos - [Microservices architecture as a key element in building trading systems for global finance markets](https://www.wearedevelopers.com/videos/1196-microservices-architecture-as-a-key-element-in-building-trading-systems-for-global-finance-markets) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) - [Introducing a Digital Service Catalog for speed and scale](https://www.wearedevelopers.com/videos/763-introducing-a-digital-service-catalog-for-speed-and-scale) - [Microservices: how to get started with Spring Boot and Kubernetes](https://www.wearedevelopers.com/videos/242-microservices-how-to-get-started-with-spring-boot-and-kubernetes) - [Building high performance and scalable architectures for enterprises](https://www.wearedevelopers.com/videos/19-building-high-performance-and-scalable-architectures-for-enterprises) - [Next Level Enterprise Architecture: Modular, Flexible, Scalable, Multichannel and AI-Ready?](https://www.wearedevelopers.com/videos/1017-next-level-enterprise-architecture-modular-flexible-scalable-multichannel-and-ai-ready) ## Related Articles - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [How Much Does a Software Engineer Make? Realistic Software Engineering Salaries](https://www.wearedevelopers.com/magazine/425-how-much-does-a-software-engineer-make-realistic-software-engineering-salaries) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Are Software Engineer Wages Being Pushed Down? A Report on Tech Salaries](https://www.wearedevelopers.com/magazine/417-are-software-engineer-wages-being-pushed-down-a-report-on-tech-salaries)