Senior JavaScript / TypeScript Engineer | Data Visualisation | 2D Graphics - techstack Recruitment

Senior JavaScript / TypeScript Engineer | Data Visualisation | 2D Graphics

London | to £200,000 depending on exp.

I'm hiring a Senior Engineer to work on a widely-used, open-source charting library relied on by thousands of engineers building data-intensive products.

Why engineers take this role

You work on the hard stuff. This is core library engineering: rendering engines, chart primitives, 2D graphics, and public APIs — not feature churn or framework glue.

Your skills compound, fast. You’ll deepen fundamentals that actually last: algorithms, performance, graphics, and system design. The kind of experience that makes you harder to replace and easier to trust.

Real ownership, end to end. You take features from concept through to release. No product theatre. No endless hand-offs. Just proper engineering responsibility.

Your work is visible and respected. You’ll be contributing to a well-known open-source project used in ...