Timo Stienstra
Embedded Software Engineer at Florinco BV
Hendrik-Ido-Ambacht, South Holland, Netherlands
Summary
🤩
RockstarTimo Stienstra is an embedded software engineer with four years’ experience specializing in robotics-focused software and mechanical design. He blends mechanical engineering intuition with hands-on firmware and Python development, having built BRiM—a tool for forming equations of motion for custom bicycle–rider models—from scratch and presenting it at the Bicycle Motorcycle Dynamics Conference (3rd Best Presentation). His open-source contributions to SymPy’s mechanics library improved velocity/acceleration computations and documentation, demonstrating care for reproducible physics code. Practical innovator by habit, he has a track record of clever hardware–software solutions—from award-winning mobile robots to a drop-in 3D printer hotend rotation mod—and enjoys applying that tinkering mindset to R&D challenges.
4 years of coding experience
Dutch, English
Stackoverflow
81reputation
1kreached
3answers
1question
Github Skills (19)
simulation10
python10
simulator10
simulations10
mechanics10
physics10
linear-algebra10
test-automation9
documentation8
computer-algebra-system7
taylor-series6
game-physics6
mujoco6
derivative6
graph6
Programming languages (3)
Github contributions (5)
sympy/sympy
Apr 2022 - Jan 2023
A computer algebra system written in pure Python
Role in this project:
Back-end Developer
Back-end DeveloperContributions:388 reviews, 117 commits, 93 PRs in 9 months
Contributions summary:Timo made multiple commits focused on improving the mechanics library within the SymPy repository. The commits addressed issues in velocity calculations, added tests for auto velocity and acceleration computation, and extended the system with examples and improved documentation. The changes primarily involved Python code modifications, with a focus on physics vector and mechanics implementations.
mathpythonsciencecomputer-algebra-systemalgebra
mechmotum/symbrim
May 2023 - Mar 2025
A Modular and Extensible Open-Source Framework for Creating Symbolic Bicycle-Rider Models
Contributions:4 reviews, 140 PRs, 205 pushes in 1 year 10 months
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