À propos de Romain
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Capacité professionnelle complète
Expériences
- Fantasy.topBackend Engineer / DevOps — Data & Platform SystemsCAPITAL-INVESTISSEMENTmars 2024 - décembre 2025 (1 an et 9 mois)Lisbonne, PortugalJoined during beta and contributed to mainnet launch and rapid scaling from ~1K to over 100K users during peak activity.• Designed and operated a high-throughput Twitter data indexing pipelineprocessing hundreds of millions of daily events.• Built anti-botting systems protecting engagement metrics and game mechanics from automated abuse (Python, panda).• Contributed to backend refactor from Hasura to NestJS REST APIs, improving business-logic control and observability.• Developed core backend features including leaderboards, ranking systems, and modular ELO-based gamification logic.• Implemented Cloudflare caching and backend cache-control strategies to reduce latency and offload backend traffic on low-volatility endpoints.• Led backend performance and reliability improvements focused on ingestionthroughput and queue stability.Performance & scaling:• Optimized PostgreSQL and TimescaleDB ingestion workloads (~300M dailyinsert/ update ops, ~3,200 TPS).• Introduced staging tables and bulk COPY pipelines, reducing WAL contention and I/ O pressure.• Migrated high-volume tables to TimescaleDB hypertables with compression,reducing storage and IOPS by ~50%.• Implemented monitoring with PMM and pg_stat; continuously tuned queries,indexes, and schema design.• Stabilized platform under ~17K IOPS, avoiding a planned ~$10K/ monthinfrastructure upgrade.Tech: TypeScript, Python, panda, Node.js, NestJS, PostgreSQL, TimescaleDB,Redis, Docker, AWS, Cloudflare, CI/ CD
- Junior Conseil TakerDeveloper FullstackHIGH TECHdécembre 2021 - décembre 2024 (2 ans et 11 mois)Développement Front End (Next js) d'une application web dansle domaine de la médecine pour un pays étranger.Développement Front End (Next Js) d'une application web dans le domaine de l'agriculture avec l'UE.Lien du site web v1 : https://logipre.org/
- ProovupBack-End Developermai 2023 - juin 2023 (1 mois)• Designed an optimized TypeScript microservice for aircraft flight load management at MetaFlight, handling 1–5K simultaneous aircraft in real time.• Implemented Redis caching, Socket.io updates, and a queuing system to reduce database load.• Ensured strong security with JWT and API key authentication, comprehensive documentation, and seamless integration within the company's infrastructure.
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Formations
- Expert en Technologies de l’informationEpitech Lyon
- Master's degree in Cyber Security (certified by GCHQ, the UK governement intelligence and security agency)University of KentDomains of study: - Authentication, Authorization, Security Accounting - Cryptography (Rsa, Homomorphic encryption) - Network security - Information security - Privacy (K-anonymity, l-diversity, T-closeness)
Certifications
- DIGITAL TRANSFORMATION CERTIFICATEHEC PARIS DMI2022