About Nicolas
French
Native or bilingual
English
Fluent
Experience
- FiligranDirector of EngineeringDIGITAL AND ITJanuary 2026 - Today (6 months)Paris, FranceLeading the Integrations department across OpenCTI and OpenAEV, two product lines in active market expansion.
- CybelAngelEngineering ManagerMay 2020 - November 2025 (5 years and 6 months)Paris, FranceLed and managed a fully remote team of 6 engineers developing a security focused SaaS platform from the ground up:- Shipped Asset Discovery and API Threat Detection from zero to GA: two of the company's core revenue-generating modules, built on distributed systems ingesting billions of events daily- Cut cloud infrastructure costs by hundreds of thousands of euros per month. Diagnosed and resolved systemic performance bottlenecks across the stack- Grew and retained a team of 6 engineers: zero attrition on the core team over 5 years, including full-cycle hiring, coaching, and internal promotion- Owned the technical roadmap end-to-end: scoped with Product, sequenced for delivery, and consistently shipped on timeTech Stack: Terraform, Kubernetes, Python, Golang, RabbitMQ, Pub/Sub, Redis, BigTable, MongoDB, Neo4j, ElasticSearch, Protobuf, gRPC, Datadog, Gitlab, BigQuery, Looker Studio
- BlaBlaCarSenior Software EngineerAugust 2016 - April 2020 (3 years and 8 months)Paris, FranceCore engineer on a B2C ride-sharing platform at scale; first engineer on the B2B pro offering.- Extracted pricing and fee computation from a PHP monolith into Java microservices achieving 6,000 QPS: independent scaling, faster iteration- Designed geo-based dynamic pricing feature end-to-end, from architecture to production- Built the pro driver app from scratch, enabling professional drivers and bus companies to list trips on the platformTech Stack: Kubernetes, Java, Spring Boot, RxJava, Retrofit, Maven, Gradle, PHP, Symfony, JavaScript, PostgreSQL, MariaDB, ElasticSearch, RabbitMQ, Redis, Protobuf, gRPC, ELK, Prometheus, Grafana, Jenkins, SonarQube
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Education
- Master of Science, Computer ScienceEPITECH - European Institute of Technology2007
- Master of Science, Computer ScienceDalian Polytechnic Univeristy2006