Senior JavaScript Engineer | DataGrid & Charting Libraries | London

Full-time IT & Technology

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

Most engineers build applications.

This team builds the components those applications rely on.

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
• Building features end-to-end — from design through to release
• Shaping the direction of widely adopted developer tooling

What they’re looking for

• Experience with a statically typed language (C++, C#, Java, Python, etc.)
• Deep understanding of algorithms, data structures, and software design
• Experience building complex systems — not just ...