Senior Front-End Software Engineer

Tempest Vane Partners; Greater London; On-site; GBP 110,000 - 145,000; Full time

Job summary

Tempest Vane Partners is working with a leading global investment firm to identify a Senior Front-End Software Engineer to join their Investment Tooling UI team in London. You’ll join a small, highly skilled team with significant autonomy, collaborating with backend engineers, designers and senior business stakeholders to shape the front-office platform and tooling, including AI initiatives.

Expect high-impact work delivering real-time, high-fidelity interfaces used by portfolio managers and

Qualifications

• 5+ years of commercial front-end engineering experience, ideally in financial markets.
• Strong React, Redux, CSS and TypeScript expertise.
• In depth knowledge of GraphQL and real-time streaming data.

Responsibilities

• Develop and maintain front-end for investment tooling UI used by portfolio managers and researchers.
• Collaborate with backend engineers, designers and stakeholders to shape architecture and tooling.
• Focus on high-fidelity design, performance and robust testing.

Skills

React

Redux

CSS

TypeScript

Frontend engineering

Performance optimization

Tools

GraphQL

Jest

Vitest

Playwright

WebSockets

gRPC

SSE

AI tooling

Job description

Senior Front-End Software Engineer | Hedge Fund | London

Tempest Vane Partners is working with a leading global investment firm to identify a Senior Front-End Software Engineer to join their Investment Tooling UI team in London.

This is a great opportunity to work in a fast paced, technically sophisticated environment, building software used directly by portfolio managers, quant researchers and systematic investment teams.

You’ll join a small, highly skilled team with significant autonomy, working closely with backend engineers, designers and senior business stakeholders. The team’s remit spans the firm's core front-office platform, systematic investment tooling, shared UI libraries and new AI initiatives.

Key Requirements

• 5+ years’ commercial front-end engineering experience (ideally in financial markets, but not industry experience is not required)
• Strong React, Redux, CSS and TypeScript expertise
• In depth knowledge of GraphQL
• A deep understanding of React performance and optimisation
• Experience with real-time streaming data – WebSockets, gRPC, SSE or similar
• Strong UI engineering skills and an appreciation for high-fidelity design
• Experience with Jest, Vitest, Playwright or similar
• Hands on experience with AI tooling and agentic development methodologies

For the right engineer, this is an opportunity to work on high-impact technology, alongside exceptional engineers, with genuine influence over architecture, tooling and product direction.