Senior JavaScript Engineer | DataGrid & Charting Libraries | London

Frontend Systems Engineer – DataGrid & Visualisation Libraries | London (Hybrid)

£150,000 – £200,000 + package

Most engineers build applications.

This team builds the components those applications rely on.

I’m hiring for a developer tools company building widely adopted JavaScript components used in data-intensive applications across global enterprises, financial institutions, and technology companies.

This is core engineering work, focused on performance, scalability, and building systems that operate at the limits of the browser.

What you’ll be working on

• Developing and optimising a high-performance DataGrid and charting library used globally
• Solving complex problems around rendering, large datasets, and real-time updates
• Working across data structures, algorithms, and performance-critical code paths
• Contributing to both grid and visualisation components
• ...