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Senior / Lead Front-End Engineer (UI Architecture & Governance)
Salary:
180
 - 
220
 Net B2B + VAT / Hour
41
 - 
50
 EUR B2B Contract / Hour
European Union
Apply Now!All Job Openings

Senior / Lead Front-End Engineer (UI Architecture & Governance)

Salary:
27900
 - 
34100
 Net B2B + VAT / Month
6300
 - 
7800
 EUR B2B Contract / Month
180
 - 
220
 Net B2B + VAT / Hour
41
 - 
50
 EUR B2B Contract / Hour
27900
 - 
34100
 Brutto UoP / Month
Location:
European Union
Apply Now!See all Job openings

Job Description

We are seeking two Senior / Lead Front-End Engineers to join UI/UX Governance layer team. Instead of clicking standard backlog tasks for a single product, you will act as internal consultants and architects for an ecosystem of 100+ internal apps and 800+ developers. Your primary mission will be to help clear a massive technical backlog and guide internal teams through a major architectural shift.

Key Responsibilities:
  • Advise and support internal engineering teams on front-end architecture, bespoke widget implementation, and web performance best practices.
  • Develop, maintain, and extend highly optimized, reusable UI components (published as internal NPM/PNPM packages) for the corporate marketplace.
  • Drive the technical migration of the internal design system from Material UI (MUI) to Shadcn, specifically optimizing it for AI-assisted/agentic developer workflows (Cursor, Copilot).
  • Provide technical mentorship, perform architectural code reviews, and handle technical doubts from a massive pool of internal developer stakeholders.

IMPORTANT!
Due to strict financial regulatory requirements, the selected candidate must successfully pass:

  • Standard background and criminal checks.
  • Trading Portfolio Disclosure: Candidates must disclose their personal stock trading portfolios to the Compliance Department to prevent conflicts of interest.


Requirements

  • Exceptional, expert-level proficiency in TypeScript and ReactJS. We are looking for true foundational experts who understand the inner workings of the language and framework.
  • Experience with Shadcn and Tailwind CSS is highly desirable (aligning with our V2 architecture).
  • Strong comfort level leveraging and optimizing for AI-assisted coding tools (e.g., Copilot, Cursor, or similar workflows).
  • Superb interpersonal and consultative soft skills. You must be able to articulate technical decisions clearly, handle pushback from senior internal devs, and act as an internal advocate for UI standards.
  • Professional fluency in English.

Nice-to-Have :
  • Experience with complex data visualization, plotting, and charting libraries.
  • Heavy experience with highly customized data grids, specifically AG Grid (used in ~80% of our applications).
  • Understanding of modern Desktop Container Platforms (e.g., OpenFin, Interop.io) or Web Components.
  • Basic understanding or awareness of Rust.


Ready to apply?
Check out our recruitment process*

* Please Note: different job opportunities may have a slightly different version of this process.