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Senior Frontend Engineer Equity at Seed-stage risk intelligence SaaS

Job in Greater London, London, Greater London, EC1A, England, UK
Listing for: Jack and Jill AI
Full Time position
Listed on 2026-01-13
Job specializations:
  • Software Development
    React.js, Front End Developer
Salary/Wage Range or Industry Benchmark: 70000 - 90000 GBP Yearly GBP 70000.00 90000.00 YEAR
Job Description & How to Apply Below
Position: Senior Frontend Engineer (£70,000-£90,000 + Equity) at Seed-stage risk intelligence SaaS
Location: Greater London

Senior Frontend Engineer

Salary: £70,000-£90,000 + Equity

Company

Description:

Seed-stage risk intelligence SaaS

Job Description

As a core member of the engineering team, you will own significant areas of the frontend codebase for a modern risk intelligence platform. You'll build performant, data-intensive interfaces that surface complex external intelligence, collaborate on API design, and establish scalable architectural patterns as the company prepares for its Series A expansion.

Location: London, UK

Why this role is remarkable
  • Take meaningful ownership of the user experience for a platform handling high-volume external data and real-time updates.
  • Join a well‑funded startup entering a pivotal growth stage with high‑impact visibility and early‑stage equity.
  • Work within a sophisticated technical environment featuring React, Type Script, and AWS‑based serverless infrastructure.
What you will do
  • Build and maintain high‑quality React components and responsive UIs for complex data visualisations.
  • Drive frontend architectural decisions and establish best practices for testing and development workflows.
  • Collaborate with backend engineers to define API contracts and manage frontend deployments via AWS.
The ideal candidate
  • Possesses 5+ years of professional experience with deep expertise in React, Type Script, and modern build tools.
  • Has a proven track record of delivering performant B2B SaaS applications or data‑intensive platforms.
  • Demonstrates strong communication skills and the ability to manage technical trade‑offs in a fast‑moving environment.
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Position Requirements
10+ Years work experience
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