Thibault Balenbois

Software & algorithms engineer

Work Experience

• Rayon, Paris: Senior Rust Engineer (2023-2025), Tech Lead (2026-today)
  Implementation and maintenance of the core computational geometry algorithms, most notably the engine for boolean operations on vector paths.
  Stack: Rust, WASM, computational geometry
• Zama, Paris: Rust Engineer (2023)
  Implementation of fully homomorphic cryptographic primitives for our open-source tfhe-rs library, written in Rust.
  Stack: Rust, github, AWS, TFHE cryptosystem
• Outsight, Paris: R&D algorithms engineer (2020-2022)
  Design, implementation, and optimization of various algorithms for processing Lidar data in an embedded system, including but not limited to: object detection, classification, and tracking, Kalman filtering, bounding box fitting and filtering.
  Stack: Rust, C++, Python, gitlab, cmake
• CNRS, Paris: Research Engineer (2017-2020)
  Design of machine learning models, and their practical implementations, to analyze brain signals in a real-time setting. Artificial neural networks were built and ran using Tensorflow.
  Stack: C++, Python, Tensorflow
• CEA, Saclay: Internship in physics (2016)
  Study of the spectrometer calibration on the ATLAS experiment, using the J/Psi resonance in di-muon.

Education

• UPMC, Paris: MS in fundamental physics (2016-2017)
• Ecole Centrale Paris, Paris: Engineering degree (2012-2016)

Miscellaneous

• twibint: a Rust library I built and maintain for arbitrarily large interger arithmetics. Performance-wise, it's close to SOTA libraries in the Rust ecosystem. It's a fun way to explore the math of large arithmetics.
• typed_test_gen: a Rust library I built and maintain for test generation in Rust. Helps generalizing a test and instantiate several version automatically. Used in production repositories.
• Music: I play quite a bit of music in my free time: bass, drums, and saxophone in various bands