Physically Based Hair Rendering
Master's thesis research on importance sampling the dual scattering approximation, to render hair with less noise for the same effort.
- C++
- PBRT
- OpenVDB
- Ray tracing
Jeffrey Lemein
Senior Software Engineer
Software architecture · TypeScript / Node.js · C++ / CUDA · Technical ownership
I build software platforms and take responsibility for them end to end — architecture, backend, frontend, integrations and deployment.
Available for freelance and contract work through Lemon Software.
- 10+
- years building production software
- 5
- engineers led as GPU team lead
- MSc
- Game & Media Technology, Utrecht University
Experience at KWS Seuren · Ibeo Automotive · BlueConic · Nedap
About me
Most of my work is on systems that are already running. At KWS Seuren I am the technical owner of the core platform: architecture, backend services, financial workflows, integrations and infrastructure, built on TypeScript, Node.js and React. Twenty to thirty people work in it every day, and the shop takes around two thousand visitors a day: searching, ordering, paying, and the mail that goes with it. A mistake in the application shows up in production immediately, when thirty people can't do their work.
Before that I spent four years at Ibeo Automotive on a physics-based 3D rendering framework in C++ and CUDA: rendering and simulation that has to stay correct inside a fixed time budget.
What I do
Full-stack platforms
Web applications and REST APIs on TypeScript, Node.js and React — from the data model and backend services through to the interface people actually work in.
High-performance C++ & CUDA
Native and GPU-accelerated software in C++ and CUDA: rendering, simulation and tooling, with the build and test setup to keep it maintainable.
Technical ownership
Responsibility for the whole — architecture, integrations, deployment, and the technical decisions the system has to live with for years.
Selected work
Research into physically based hair rendering, and two platforms that are in daily use.
Dushi Bida Apartment Site
Corporate Portal & Online Store
A corporate portal for managing products, invoicing, and payments for an online store offering e-bike battery regeneration services.
- Node.js
- TypeScript
- React
- MariaDB
- Elasticsearch
Get in touch
Interested in working together, or curious whether I'd fit your team? Happy to talk.
Send me an email