Senior Frontend Developer

Company: Thyme
Apply for the Senior Frontend Developer
Location: Greater London
Job Description:

Office Location: Central London (Hybrid)

We have partnered up with one of the largest Saas businesses that help numerous FinTech organisations across the UK and EU.

Key Responsibilities

  • Cross-Functional Collaboration: Partner directly with Product Managers and UX Designers to translate user journeys and Figma designs into production-grade UI aligned with an established design system.
  • Backend Integration: Seamlessly integrate frontends with ASP.NET APIs, ensuring robust data exchanges, resilient error handling, and secure authentication/authorisation flows.
  • Performance & Telemetry: Implement and optimise frontend performance (bundle analysis, caching), monitoring the live user experience via RUM (Real User Monitoring) and telemetry data.

Technical Requirements

  • 8+ years of professional frontend development experience with complex, production-grade applications.
  • Expert Proficiency: Deep experience with Vue 3, TypeScript, and modern state management
  • Modern Tooling: Hands-on experience with Vite/Webpack, npm/yarn, and Git-based CI/CD workflows.
  • Testing Discipline: Proficiency with testing frameworks such as Jest, Vue Test Utils, or Selenium.

Preferred Qualifications

  • Familiarity with C#/.NET and the ability to contribute to backend contract definitions.
  • Experience incorporating AI-based tools into daily development workflows.
  • Background in high-scale SaaS, Observability/Monitoring, or Financial Services domains.
  • Hands-on with data visualisation libraries (e.g., Highcharts) and real-time interfaces (WebSockets).
  • Pension & Life Assurance.
  • Flexible Hybrid Working (typically 2 days in office).
  • Training Reimbursement & Personal Development.
  • Travel Insurance & Income Protection.
  • Enhanced Parental Leave & Holiday Buy/Sell scheme

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Posted: February 11th, 2026