Principal Software Engineer .NET
£90,000-£100,000
Remote (UK)
Are you passionate about writing clean, scalable code and ready to shape a platform used by merchants across the globe?
We're working with a fast-growing global payment processing platform that’s scaling rapidly after a major acquisition. They are building a high-performance, merchant-first ecosystem that prioritises quality, resilience, and scalability - and they are searching for .Net Software Engineers to join them on their growth journey.
What You’ll Do:
* Architect and build core platform services, APIs, and portals that deliver real business impact.
* Elevate performance and reliability using smart, efficient engineering.
* Instill best practices in system design, quality, and delivery.
* Collaborate across engineering, product, and architecture teams to solve real problems the right way.
Technologies:
* Languages & Frameworks: C#, .NET Core
* Architecture: Event-driven, service-oriented
* Cloud & Infrastructure: Azure (or AWS), Infrastructure-as-Code
* Data & Integration: SQL, caching, message brokers (e.g., RabbitMQ)
* Front-End: HTML, CSS, JavaScript
* Engineering Practices: CI/CD, Behaviour-Driven Development, modern agile workflows
Who We’re Looking For:
* 10+ years of hands-on coding and architectural leadership; adept at influencing technical direction and guiding complex systems.
Why You’ll Love Working Here:
* Remote-first within the UK & Ireland
* 45 days holiday, plus bank holidays
* Private family healthcare
* Annual learning & certification allowance
* Clear career growth path, with or without stepping into management
Disclaimer: Research indicates that men will apply to a role when they only meet 50-60% of the descriptions, however, when looking at women and other minority groups, they can look for up to a 99% match in order to apply to a role. If you feel you are a fit for our role, please still apply, don’t worry if you don’t tick every single box. We’d still love to hear from you. We encourage underrepresented talent to apply to all our roles & support accessibility needs.