John Walley

Senior engineer working on high-performance data visualisation tools used by analysts to explore complex graph, temporal and geospatial data. Contributing across product architecture, developer experience, and performance-critical UI components.

• Designed and delivered data-driven web applications and visualisation tools across multiple industries.
• Built a production floor-planning application in collaboration with Reno, a UK home-renovation startup.
• Designed visualisation tools for the pensions industry in partnership with Financial Canvas.
• Created and maintained open-source data-visualisation libraries (Allotment and Pennant) with 80,000+ weekly downloads, used by the Vega decentralised derivatives trading network.
• Founded and grew a consultancy, leading technical delivery while remaining hands-on with architecture and implementation.

• Improved visibility and adoption of a newly acquired database deployment tool.
• Introduced in-product analytics to support data-driven product decisions.
• Worked closely with UX and engineering to prioritise features and improve user experience.

Developed solutions to streamline SQL Server database deployment for users of popular release management tools.

• Contributed to a scalable framework powering a high-performance risk analytics service.
• Developed a tracing just-in-time compiler enabling C# financial models to run efficiently on GPUs.

Held technical roles spanning high-performance computing, applied research, and customer-facing engineering, including:

• High Performance Computing Developer at Fidelity
• Application Engineer at MathWorks (UK technical contact for parallel computing tools)
• Research Scientist at QinetiQ, working on multi-sensor fusion, object tracking, and stealth technology