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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 & Jill/External ATS
Full Time position
Listed on 2026-01-13
Job specializations:
  • Software Development
    AI Engineer, React.js
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

Jill, an AI Recruiter, is recruiting for this role on behalf of one of our customers. She will pick the best candidates from Jack's network.

Next step: speak to Jack.

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 visualizations.
  • 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.
Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire.

Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

Next steps
  • Visit our website.
  • Click 'Talk to Jack'.
  • Talk to Jack so he can understand your experience and ambitions.
  • Jack will make sure Jill (the AI agent working for the company) considers you for this role.
  • If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
  • If not, Jack will find you excellent alternatives. All for free.
  • We never post fake jobs

    This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

    #J-18808-Ljbffr
    Position Requirements
    10+ Years work experience
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