About Fabien
My thesis: Infrastructure as Software
How we can collaborate:
- Month 1 (Foundations & Immersion): Deep diagnosis, technical debt mapping, Target Architecture design, and initial setup (K8s/GitOps).
- Following months (Builder): Iterative platform industrialization, internal portal deployment, and continuous optimization (FinOps/Security).
Modalities:
French
Native or bilingual
English
Fluent
Experience
- Invariant SystemsFounder & Principal Platform ArchitectJanuary 2026 - Today (7 months)Founded Invariant Systems to bridge the gap between Software Engineering and Platform operations. Acting as Principal Architect to industrialize the infrastructure of Scale-ups and DeepTech companies by treating the "Platform" as a critical product.
- 𝗧𝗵𝗲 𝗜𝗗𝗣 𝗘𝗻𝗴𝗶𝗻𝗲: Design self-service Internal Developer Platforms (IDPs) (Golden Paths) acting as force multipliers, reducing developer cognitive load and eliminating infrastructure bottlenecks.
- 𝗧𝗵𝗲 𝗥𝗼𝗮𝗱𝗺𝗮𝗽 𝗔𝘂𝗱𝗶𝘁: Conduct in-depth technical diagnostics and reliability audits to map technical debt and design target architectures for high-growth environments.
- 𝗧𝗵𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 𝗚𝘂𝗮𝗿𝗱𝗶𝗮𝗻: Develop high-performance custom tooling (Rust/Go) and perform surgical interventions on critical stability issues for distributed systems.
- UltraStaff Platform Engineer & DevOps LeadVIDEO GAMES AND ANIMATIONJanuary 2021 - Today (5 years and 7 months)Led the Platform Engineering strategy and managed an international distributed DevOps team for a global, blockchain-based PC game distribution platform. My role extended beyond infrastructure construction to shaping the associated engineering culture.
- Strategic Leadership: Structuring and mentoring a 100% remote international DevOps team. Defining engineering standards to align distributed squads towards a unified delivery model.
- Global Deployment: Architecting the GitOps Golden Path for over 50 engineers worldwide, reducing deployment friction on a resilient multi-cloud architecture.
- Scalability Resilience: Designing a federated observability stack (Prometheus/Thanos) to monitor critical decentralized systems, ensuring high availability for a global user base.
- IntrinsecSenior Infrastructure EngineerOctober 2019 - December 2020 (1 year and 2 months)Integrated the core engineering team to industrialize the infrastructure of a Cyber Threat Intelligence (CTI) platform. Focused on hardening the production environment and automating the deployment of distributed services.
- Infra Hardening: Strengthening the resilience of a distributed architecture relying on message queues, ensuring stability under high load.
- Deployment Automation: Simplifying the release process by replacing manual operations with reproducible Ansible playbooks and GitLab CI pipelines.
- Access & Compliance: Implementing policies (IAM, PKI).
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Education
- Master 2 (M2)Université de Pau et des Pays de l'Adours2011Master 2 (M2)
- Applied Mathematics Bachelor's DegreeUniversité de Pau et des Pays de l'Adours2009Licence Mathématiques Appliquées