Senior Frontend Engineer - TypeScript / React / AWS At a Glance Senior Frontend Engineer role on a modern, cloud-native product platform TypeScript / React ecosystem with AWS integration and serverless architecture Hybrid working - Belfast Real ownership of UI architecture, not just shipping screens About the Company Our client is a fast-moving, product-led technology company headquartered in Belfast, building large-scale workflow solutions for some of the world's biggest enterprises. Their engineering culture is highly collaborative, modular, and cloud-native, with a genuine focus on quality, scalability, and doing things properly. This is a team that invests in its engineers through L&D budgets, clear progression frameworks, and a culture built around technical excellence. The Role This is a senior frontend engineering position for someone who thrives in TypeScript ecosystems, understands cloud-first software principles, and is motivated by clean, scalable frontend architecture. You'll take ownership of key UI initiatives across a modern platform, contributing across the full engineering lifecycle, not just shipping UIs, but helping shape how the platform operates end-to-end. You'll collaborate closely with platform, backend, and DevOps engineers, and play an active role in mentoring and raising engineering standards across the team. Key Responsibilities Lead the design and development of React-based applications using Hooks, Context, and TypeScript within a monorepo environment Build scalable frontend solutions integrated with AWS services and serverless APIs Champion frontend code quality, performance, accessibility, and reusability, including component libraries such as Storybook Mentor engineers and guide best practices across testing (Jest, Cypress), CI/CD, and frontend observability Collaborate with platform teams on core decisions around authentication, analytics, real-time events, and PWA optimisation Work closely with DevOps and backend engineers in a CI/CD-driven environment using GitHub Actions, Terraform, and ArgoCD What You'll Need Essential 6 years' commercial software engineering experience, including delivering React and TypeScript at scale Strong architectural background, you've built or scaled monorepos, component libraries, or complex frontend systems Hands-on AWS experience, ideally Lambda, API Gateway, CloudFront, and S3 DevOps-aware mindset with experience in CI/CD, performance tuning, and deployment workflows A collaborative, mentoring approach with proven success in cross-functional teams Right to work in the UK Nice to Have Experience with NestJS, GraphQL, or WebSockets Background in mobile or PWA delivery Exposure to or interest in Rust as a backend / systems language Why Apply? 25 days annual leave plus public holidays Hybrid working from Belfast with flexible hours Health and wellness programme L&D budget, tech talks, and regular team meetups Clear career progression framework with real room to grow Interested? Reach out to Ryan Quinn directly on LinkedIn for a confidential conversation, or submit your CV via the link below. We represent the largest selection of technology roles of any recruitment firm in Northern Ireland,if this one isn't the right fit, we're always happy to meet and talk through where you want to go in 2026. Skills: JavaScript AWS TypeScript ADZN1_NI