Senior Frontend Systems Engineer (TypeScript) | UI Frameworks
techstack Recruitment
Full-time
IT & Technology
Location
london, england, United-Kingdom
Posted
May 27, 2026
Job Description
Senior Frontend Systems Engineer (TypeScript) β UI Frameworks | London
Β£150,000 β Β£200,000 + pension, private healthcare, gym membership, hardware budget
London (Hybrid β 2 days WFH)
Most frontend roles sit on top of frameworks.
This one builds them.
A high-growth software company is engineering a next-generation UI framework and data visualisation platform used in mission-critical environments by global enterprises, financial institutions, and technology companies.
Their products power applications used by millions of users every day.
What youβll be doing
- Solving complex problems around data structures, recursion, memory usage, and rendering performance
- Building features end-to-end β from design through to release
- Contributing to a product used by engineering teams globally
What theyβre looking for
- Background in C++, Java, or C# β or...