Senior Full Stack Engineer

Senior Full Stack Engineer Bracknell (Hybrid 2-3 days in office) | Salary £70,000 - £75,000Vue or React on the frontend, C# / .NET on the backend, AWS in production, and agentic coding tools as part of how you build every day. If that is your stack, and you have worked in payments, FX or another regulated environment, this could be a strong fit.We are working with a payments company who are hiring a senior full stack engineer to own real problems end to end and help shape how the team builds.What You Will DoDesign and own features across the stack that move money and manage multi-currency balances, spanning onboarding, KYC and KYB, payment initiation, FX and settlementLead delivery of customer-facing features, from the interface through to the services behind themOwn production health for your domain, including reliability, observability, on-call and incident responseLead cross-functional delivery with product, design and compliance, from problem framing through to launchLead design reviews, set technical direction for your domain and mentor mid-level engineersUse agentic coding tools daily across the development lifecycle and help modernise legacy services into the current stackWhat We Are Looking ForProven experience building production web applications end to endStrong frontend proficiency with Vue.js, React or equivalentStrong backend proficiency in C# / .NETSolid SQL and relational database fundamentalsDaily use of agentic coding tools across the development lifecycleProduction experience on AWS, including CI/CD and native services such as SQS, DynamoDB, S3, ECS and LambdaStrong system design and architecture experience, including microservices and event-driven patternsPayments, FX or regulated-industry experienceA track record of technical leadership: mentoring, leading design reviews and making architecture decisionsIf you want your code to matter, your decisions to land, and real ownership of how a payments platform is built, this is worth a conversation.