Product Engineer - Frontend - UK

Reflection AI, Inc; London; On-site; GBP 60,000 - 90,000; Full time

Job summary

A leading company is seeking a Senior Frontend Developer to own the customer-facing surfaces of their AI product, including the web dashboard and desktop application. The role involves defining frontend architecture, ensuring end-to-end product delivery, and driving performance across devices, with a focus on secure, enterprise-grade integrations.

Qualifications

• 5+ years shipping production web apps with React and TypeScript.
• Deep understanding of modern JavaScript/TypeScript and browser performance.
• Experience in designing/consuming API contracts.

Responsibilities

• Own and ship customer-facing web dashboard and desktop application.
• Define frontend architecture and establish component libraries.
• Drive performance and quality improvements across devices.

Skills

React

TypeScript

API design

JavaScript

Accessibility

Performance optimization

Job description

Role Overview

Reflection's alpha product turns cutting-edge AI research into a developer-friendly platform for engineering teams at global enterprises. You will lead the customer-facing surfaces of that product - from the web dashboard(s) to our upcoming desktop app.

What You'll Work On

• Own Customer-Facing Surfaces
  
  • Ship the main web dashboard, in-app onboarding, and the desktop application (Tauri/Electron) that customers run locally.
• Define Frontend Architecture
  
  • Establish component libraries, state-management patterns, test automation, and build pipelines that keep velocity high as the team scales.
• End-to-End Product Delivery
  
  • Design and consume API contracts with backend peers; jump into server code when it unblocks the feature.
• Performance & Quality
  
  • Drive initiatives that improve first-load time, interaction latency, accessibility, and visual polish across devices.
• Enterprise-Grade Integrations
  
  • Implement secure auth flows (OIDC/SAML), role-based UIs, and configuration wizards that make deployment in regulated environments painless.

Must Haves

• 5+ years shipping production web apps with React (or a comparable framework) and TypeScript.
• Demonstrated ownership of complex features from spec → production → monitoring.
• Deep understanding of modern JavaScript/TypeScript, browser performance, accessibility fundamentals, and secure session management.
• Comfortable designing/consuming API contracts and collaborating closely with Python or Go backend engineers.
• Proven ability to make pragmatic architecture trade-offs and drive consensus in a fast-moving, remote team.

Good to Haves

• Experience building or maintaining design systems, micro-frontend platforms, or desktop apps with Tauri/Electron.
• Familiarity with Kubernetes, CI/CD pipelines, and cloud infra (AWS/GCP/Azure).
• Exposure to enterprise authentication (SAML, SCIM), SOC2/GDPR compliance, or financial-grade security.
• Prior work in AI/ML product surfaces, data visualization, or developer-tool UX.
• Open-source contributions, tech talks, or blogging that showcase thought leadership.