WPF UI Developer

Salary: £40,000 - 70,000 per year

Requirements:

• Science or Engineering degree
• Expert-level C# and WPF experience with full WPF stack knowledge, including dispatcher, dependency properties, virtualization, and performance characteristics of data-bound UIs under high-frequency update conditions
• Strong verbal and written communication skills, with the ability to coordinate across different tasks and stakeholder groups
• Ability to organize multiple competing tasks and priorities in a rapidly changing environment
• Development and technical leadership experience in complex UI application development, including multi-threaded implementation and low-latency messaging
• Experience with multi-threading, low-latency, high-performance components and applications, including GC tuning
• Experience with Linux, UNIX, Solaris, and Agile methodologies
• Experience with version control tools such as Git and transport technologies such as TCP/WebSocket, Refinitiv, and Tibco Rendezvous
• Experience with debugging and troubleshooting on Linux and Windows using profiling tools
• Experience working in Fixed Income eTrading technology, especially UI-layer products such as pricing grids, RFQ blotters, and tickets
• Experience leading UI architecture evolution or modernization of a large legacy WPF code base
• People leadership experience, including line and functional management and giving feedback

Responsibilities:

• Lead the technical direction and delivery of a high-performance, low-latency eTrading UI application across a globally distributed user base spanning multiple trading desks and regions
• Manage and mentor a UI development team, including local and offshore resources
• Own the development stream end-to-end, including roadmap sequencing, sprint planning, and dependency management with server-side teams
• Architect and govern the UI layer, including components, design, threading model, dispatcher, patterns, and data binding to sustain low-latency, high-throughput data without performance degradation
• Work with technology partners and business groups regionally and globally to deliver high-quality UI products in a fast-paced environment
• Liaise with end users to understand their requirements
• Work with management and horizontal teams to advance the strategic UI roadmap
• Champion strong development practices, including pairing, code reviews, unit testing, and regression testing

Technologies:

• Architect
• C#
• Git
• Linux
• TIBCO
• Unix
• WPF
• Windows
• UX UI Design
• ASP.NET
• Web

More:

We are a top-tier investment bank and, through Huxley, a trading division of SThree Partnership LLP, we are hiring an experienced senior WPF C# .NET developer to lead the direction and delivery of a low-latency, high-throughput eTrading UI platform. The role is based within a fast-paced trading environment, working across multiple trading desks and regions with globally distributed teams. We are looking for someone who can help evolve our UI architecture and drive high-quality delivery in a live trading application.

last updated 34 week of 2026