Senior Front-End Engineer (React) - Contract
We are looking for a Senior Front-End Engineer to lead the development of a greenfield React & TypeScript analytics platform. This role involves building a secure, high-performance web portal used for complex dashboards and data-driven workflows.
Paying up to £800 per day (inside IR35 via an approved umbrella) you will work out of their City of London offices 3 days a week and 2 days from home.
You will work closely with backend engineers, UX designers and security stakeholders while taking ownership of the front-end architecture, implementation and delivery quality.
Key Responsibilities
*Build a React & TypeScript application from greenfield to production
*Develop data-heavy interfaces including dashboards, tables, filtering and workflows
*Implement robust state management and API integration
*Optimise performance for large datasets and interactive UIs
*Collaborate with backend teams on API contracts and integration
*Maintain high standards for testing, code quality and security
*Contribute to build tooling, CI/CD and deployment processes
Required Experience
*Strong commercial experience with React and TypeScript
*Experience delivering complex UI applications (dashboards, data grids, workflows)
*Strong understanding of client vs server state management
*Experience with modern data fetching tools (e.g. TanStack Query)
*Experience optimising performance for data-heavy applications
*Strong testing and code quality practices
*Security-aware development approach
This is an excellent opportunity to work on a greenfield, data-intensive platform within a collaborative and high-performing engineering environment. If you think you have the required skills and experience, please apply now!
McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds.