Senior Full Stack Developer (TypeScript, React)

Senior Engineer (Full Stack) At a Glance Senior Full Stack Engineer working with TypeScript, React and AWS Brand-new cloud-native trading platform Belfast, hybrid working Up to £70,000, depending on experience Ground-floor opportunity to shape a next-generation platform alongside a major cloud partner The Role You'll join a newly formed team building a modern, cloud-native trading platform from the ground up. Working closely with Principal Engineers, architects and engineers from a major cloud partner, you'll take ownership across design, development, testing and deployment. You'll also mentor junior engineers, influence architecture and help shape the wider engineering culture. This role suits someone who enjoys both hands-on delivery and challenging technical decisions. Key Responsibilities Design, build, test and deploy services across the platform Build low-latency, event-driven systems within a microservices architecture Lead technical and architecture discussions Work with Principal Engineers, architects and leads to move services into production Improve engineering standards, testing and delivery processes Help evolve systems towards the target-state architecture Support estimation, challenge requirements and shape solutions Mentor junior engineers and raise the technical bar across the team What You'll Need Essential 5+ years' experience in full stack, front-end or back-end engineering Strong TypeScript and React experience Experience with Redux, React Query, HTML5 and CSS3 Backend experience with TypeScript, C# or Java Strong AWS knowledge, including Lambda, Fargate, API Gateway or AppSync Experience with REST APIs, GraphQL and WebSockets Knowledge of SQL, NoSQL and microservices architecture Experience with containerisation, Terraform and CI/CD pipelines Understanding of pub/sub messaging such as SOLACE or AMQP Strong automated testing across unit, integration and end-to-end testing Comfortable working in Agile teams using Git, JIRA and Linux or PowerShell Desirable Strong understanding of OOP and SOLID principles Commercial experience with C# and .NET 8+ Experience in financial markets, trading systems or regulated environments Why Apply? Salary up to £70,000, depending on experience Hybrid working from Belfast Build a brand-new platform rather than maintaining legacy systems Work alongside a major cloud partner and experienced architects Genuine influence over architecture and technical direction Mentoring and leadership opportunities at Manager, Band 6 level Exposure to modern, low-latency and event-driven systems Join a global business operating across more than 60 offices in 27 countries Next Steps Interested in finding out more? Get in touch with Chanel at or connect on LinkedIn for a confidential conversation. Skills: TypeScript AWS AZURE GCP React Benefits: Work From Home
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