Principal Software Engineer (.Net)

Principal Software Engineer .NET£90,000-£110,000Remote (UK)Do you thrive on building scalable solutions that power commerce worldwide?We're partnering with a rapidly expanding global payment platform fresh off a transformative acquisition. They're engineering a robust, merchant-centric ecosystem built on quality, resilience, and scale - and they need exceptional .NET Software Engineers to drive this evolution.Your Impact:Design and develop mission-critical platform services, APIs, and merchant portalsDrive performance optimisation and system reliability through intelligent engineeringChampion engineering excellence in architecture, code quality, and deliveryPartner with cross-functional teams to deliver solutions that solve genuine business challengesTech Stack:Core: C#, .NET CoreArchitecture: Event-driven, microservices-oriented designCloud: Azure (AWS experience valued), Infrastructure-as-CodeData: SQL, caching strategies, message brokers (RabbitMQ, etc.)Frontend: HTML, CSS, JavaScriptDevOps: CI/CD pipelines, Behaviour-Driven Development, modern agile methodologiesWhat You Bring:10+ years of software engineering with proven architectural leadership - you shape technical strategy and navigate complex system design with confidenceWhat's In It For You:Fully remote across the UK & Ireland45 days annual leave plus bank holidaysComprehensive private healthcare for you and your familyAnnual learning budget for courses and certificationsTransparent career progression*Please note that this opportunity does not support visa sponsorshipDisclaimer: 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.

Created: 2026-01-17