Engineer. Researcher. Builder.
Thomas Day.
Hands-on engineering.
Research into practice.
Head of Innovation at Rezzil PhD in Computer Science
I build XR applications, data-driven 3D systems and immersive training experiences. I combine hands-on engineering with research and technical leadership, while exploring emerging technologies and building productive relationships with technology partners.

01 / What I do
Engineering, informed by research.
Build for real use.
Production software for XR, interactive 3D applications and data-driven experiences, with an emphasis on maintainability, performance and cross-platform delivery.
Engineering & capabilities 02 / ResearchInvestigate. Evaluate.
Virtual and Mixed Reality for training and rehabilitation: evaluating ideas rigorously and translating research into practical systems.
Research & publications 03 / InnovationExplore what comes next.
Hands-on prototypes, new platforms and technology-partner relationships that help teams turn promising concepts into useful products.
Technology & exploration02 / Selected research
Immersive systems.
Practical applications.
03 / About me
Still designing systems.
Still writing code.
I specialise in Unity and C# development for XR, real-time systems and interactive 3D applications. My work spans production engineering, research and innovation: taking ideas from early investigation and prototyping through to maintainable software, while supporting teams through technical direction, mentoring and delivery.
I also evaluate emerging platforms, learn new languages and technologies, and work with technology partners to understand what new capabilities can enable.
More about my background05 / Contact
Let’s talk engineering.
Get in touch about software, immersive systems or applied research.