CV

Full-time · Remote

Core engineer on Tlon's hosting platform, which ran a fleet of thousands of Urbit personal servers on Kubernetes. Developing the Haskell control plane, orchestration layer, Rust telemetry, and React admin console.

• Hosting control plane (Haskell/PostgreSQL/Kubernetes): ship provisioning, multi-cluster orchestration across GCP and bare metal, capacity management, and fleet visibility.
• Fleet automation and cost cutting: auto-suspension of idle servers, packet-triggered wake-up, mass OTA updates, and ship optimization.
• Network telemetry pipeline in Rust: a libpcap sidecar parsing Urbit's binary wire protocol into Prometheus metrics, plus a visualizer of the fleet's peer-to-peer graph with community detection.
• Signup and identity stack: invite links, email/phone verification (Twilio), rate limiting, anti-abuse tooling, and full MFA (TOTP + SMS).
• S3 storage proxy: per-user quotas over shared buckets, enabling free managed file storage.
• Observability and CI/CD: OpenTelemetry tracing across services and batch jobs, Prometheus/Grafana, Nix, GitHub Actions, Helm, and Docker.

Haskell and Nix consulting across multiple client projects:

• Led customs compliance project team: feature definition, API design, legacy system integration, work prioritization
• Performance optimization for trading software, achieving order-of-magnitude reduction in memory usage
• Technical blog editor for primary marketing channel, reviewed 150+ posts, contributed performance engineering articles
• Internal mentorship and technical guidance

Biophysics and Informatics department. Teaching 100+ students per semester across lectures and practical sessions.

• Guest Physics Lecturer (2020/09 - 2022/02): Biophysics and mathematical modeling for medical students
• Assistant Professor (2022/02 - 2022/08): Teaching at Biophysics and Informatics department
• Associate Professor (2022/09 - 2024/08): Course development, deployed GNUHealth medical information system for teaching

Fundamental physics courses for preparatory and first year students.

• CNRS (2017/12 - 2018/03): Software packaging, article writing
• École Polytechnique (2018/04 - 2018/08): Visualization software for 2D/3D trajectory analysis, INADILIC project

Brownian-like deviation of neighboring cells in the early embryogenesis of the zebrafish

J. R. Diaz Simões, D. Grebenkov, P. Bourgine, N. Peyriéras

Physical Biology, February 2019 • DOI

Cell Trajectory Clustering: Towards the Automated Identification of Morphogenetic Fields in Animal Embryogenesis

J. R. Diaz Simões, D. Grebenkov, P. Bourgine, N. Peyriéras

ICPRAM 2017 Proceedings, February 2017 • DOI

Université Paris-Saclay

Thesis: A mathematical approach to embryonic morphogenesis based on spatio-temporal cell lineages. Formalized spatio-temporal lineage structures as foundation for algorithmic analysis.

Supervisors: Denis Grebenkov, Paul Bourgine, Nadine Peyriéras

Thesis (HAL) • Software (GitHub)

École Polytechnique

Thesis: Generalized Langevin equations driven by fractional Brownian noise

Thesis PDF

École Polytechnique

Double Diploma Program with University of São Paulo, Brazil

University of São Paulo

Double Diploma Program with École Polytechnique, France