TypeScript Software Engineer Hybrid | Algorithms | Design Patterns

Type Script Software Engineer | London | Hybrid | Algorithms | Design Patterns £150,000 – £200,000 + pension, private healthcare, gym membership, hardware budget London (Hybrid – 2 days WFH)

A high-growth software company is building the next generation of high-performance UI frameworks and data-intensive visualisation technology. Their products power mission-critical applications used by global enterprises, financial institutions, and technology firms, relied on every day by millions of users worldwide.

• Design and optimise the core runtime of a high-performance UI framework used globally in real-time environments.
• Solve complex engineering challenges around tree structures, recursion, memory allocation, rendering performance, and data-flow architecture
  .
• Own features end-to-end, design, build, test, document, and release.
• Contribute to libraries used by developers and enterprise engineering teams worldwide.

• Strong exposure to C++, Java, or C#, with a systems-level mindset.
• A solid understanding of data structures, algorithms
  , and performance optimisation
  .
• Experience building complex, highly scalable systems — not just CRUD interfaces.
• Familiarity with frameworks such as React, Angular, or Vue
  , and a strong grasp of how they interact with the DOM.
• Ability to diagnose bottlenecks, eliminate memory leaks, and optimise rendering and throughput.
• An appreciation for clean software design, correctness, and maintainability.

• You’ll work on core engineering problems that most developers never get close to.
• You’ll join a team of deeply experienced engineers with backgrounds across low-level languages and large-scale systems.
• You’ll operate in a fast, engineering-led culture with minimal bureaucracy and high autonomy.
• You’ll enjoy a top-tier package, including:
• Pension
• 25 days holiday + bank holidays
• High-end hardware budget
• Central London office with two days WFH each week.

If you want to engineer the foundations behind some of the world’s most demanding applications, this is the environment built for you. Get in touch!