Senior Frontend Engineer

Senior Frontend Engineer Permanent | Full-Time | Hybrid A rapidly growing technology scale-up operating in the safety and security sector is developing advanced cloud-based platforms and AI-driven software solutions used by large enterprise clients across regulated and mission-critical industries. The organisation builds complex, data-heavy digital products designed to support high-performance workflows, including large-scale media processing, analytics, and intelligent insight generation. The platform is focused on delivering fast, reliable, and intuitive user experiences across highly sensitive operational environments.

The engineering team operates in a highly collaborative environment built on openness, transparency, and shared ownership, working closely with product and design to deliver impactful, scalable software. Key Responsibilities Build and maintain modern React applications using TypeScript and contemporary frontend tooling Design and implement type-safe APIs spanning frontend and backend systems Develop and support serverless backend functions and cloud-based infrastructure Work within monorepo architectures using modern build tools and package management systems Write and maintain automated tests including unit, integration, and end-to-end testing Optimise frontend performance including load times, bundle size, caching strategies, and Core Web Vitals Conduct code reviews and maintain high standards across TypeScript, security, and code quality Collaborate with cross-functional teams to deliver robust, user-focused solutions Required Experience 5+ years' professional experience in JavaScript or TypeScript development Strong expertise in React and modern frontend architecture Experience with modern build tools and monorepo-based development environments Desirable Experience Experience with API design and type-safe communication patterns Familiarity with AWS cloud services and infrastructure as code Experience with modern UI frameworks and component libraries Knowledge of testing strategies including unit, integration, and E2E testing Experience optimising performance in large-scale web applications Exposure to mobile development frameworks such as React Native Benefits Competitive salary and bonus package Generous annual leave allowance Employer pension contribution Private healthcare Learning and development opportunities Salary sacrifice schemes including cycle to work and home technology Regular company events and social activities For further information on this job, apply via the link or contact the VANRATH office for a confidential chat today. Follow VANRATH on LinkedIn for expert career advice, the latest jobs, industry news, and much more Skills: Senior Frontend Senior Frontend Developer Typescript Developer Javascript Developer Frontend Engineer WHJS1_NI