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Nicolas CarentonNC

Nicolas Carenton

Senior Software Engineer

€975/day
Rouen, FR
15+ years

Average response time: 1 hour

About Nicolas

Engineer with strong expertise in web technologies, data collection and ingestion, cloud infrastructure, microservices, APIs, networking, protocols, and security.

I enjoy working in agile teams or independently, tackling complex technical challenges with a strong focus on impact.

I aim to share and expand my vision through ambitious projects.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Filigran
    Director of Engineering
    DIGITAL AND IT
    January 2026 - Today (6 months)
    Paris, France
    Leading the Integrations department across OpenCTI and OpenAEV, two product lines in active market expansion.
    Python Rust
  • CybelAngel
    Engineering Manager
    May 2020 - November 2025 (5 years and 6 months)
    Paris, France
    Led 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 time

    Tech Stack: Terraform, Kubernetes, Python, Golang, RabbitMQ, Pub/Sub, Redis, BigTable, MongoDB, Neo4j, ElasticSearch, Protobuf, gRPC, Datadog, Gitlab, BigQuery, Looker Studio
    Python Git Golang Terraform Kubernetes
  • BlaBlaCar
    Senior Software Engineer
    August 2016 - April 2020 (3 years and 8 months)
    Paris, France
    Core 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 platform

    Tech Stack: Kubernetes, Java, Spring Boot, RxJava, Retrofit, Maven, Gradle, PHP, Symfony, JavaScript, PostgreSQL, MariaDB, ElasticSearch, RabbitMQ, Redis, Protobuf, gRPC, ELK, Prometheus, Grafana, Jenkins, SonarQube
    Java PHP MySQL PostgreSQL Cloud computing

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Education

  • Master of Science, Computer Science
    EPITECH - European Institute of Technology
    2007
  • Master of Science, Computer Science
    Dalian Polytechnic Univeristy
    2006

Skill set

Categories