Senior C# WPF UI Developer

Senior C# / WPF UI Developer

Multi‑Asset Risk – Front Office IT
Poland (Remote)

Overview

We’re working with a Major Investment Bank on a Front Office IT role within their Multi‑Asset Risk function. This is a dedicated UI position, focused on building and supporting a rich WPF desktop application used directly by traders to monitor intraday risk across FX Options and Commodities.

This is a mature, business‑critical platform with a strong roadmap of new features alongside ongoing support and bug fixing. They’re looking for a fully rounded .NET developer who can own work end‑to‑end, communicate well, and operate confidently in a Front Office environment.

The Platform

The application is a high‑throughput, compute‑intensive desktop system used by traders to:

• Monitor intraday risk on individual books and portfolios

• Analyse hundreds of granular risk measures (Greeks and beyond)

• Run multiple dynamic reports as market conditions evolve throughout the day

The backend is entirely Java (risk calculations farmed out to compute engines). This role sits squarely in the C# / WPF UI layer.

What You’ll Be Doing

• Developing new UI features on a large, mature WPF application

• Fixing bugs and improving stability on a business‑critical front office system

• Working closely with Front Office users, other UI engineers, and backend teams

• Owning issues from investigation through to resolution rather than passing them on

What They’re Looking For

Core skills

• Strong commercial experience with C# and WPF

• Solid .NET fundamentals and confidence working in large codebases

• Experience building rich desktop UIs with high data volumes

• Rx / reactive programming experience is a plus, but not mandatory

Mindset & behaviours (very important)

• A genuine self‑starter who takes ownership and follows things through

• Comfortable working in Front Office IT – not just a “head‑down coder”

• Strong communicator who collaborates rather than sitting on problems

• Someone trusted to make changes without introducing unnecessary risk

• Pragmatic, competent, and commercially aware

Team & Location

• UI team is based in London hours

• Global Front Office presence (Singapore, London, New York)

• Fully remote role

Contract Details

• At least 12 months of work

• Long‑running, stable programme with an established codebase