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Nathan Barranco-JanniauxNB

Nathan Barranco-Janniaux

System engineer

€500/day
Lyon, FR
3-7 years

Average response time: 1 hour

About Nathan

I’m a Cloud Solution Architect certified on AWS, passionate about designing infrastructures that are simple, scalable, and efficient.
My mission: simplify complexity — by transforming technical challenges into clear, maintainable, and high-performing cloud solutions.

Over time, I’ve built expertise across the full AWS ecosystem: from architecture design and migration strategies to automation, security, and cost optimization.
I help companies modernize their systems, accelerate delivery, and gain resilience through well-structured cloud environments.

💡 My approach
  • I start by understanding business needs, not just technical constraints.
  • I translate them into cloud architectures that are elegant, secure, and easy to operate.
  • I believe the best architecture is the one you don’t need to fight to maintain.

🚀 Let’s work together

Whether you’re looking to move to AWS, improve performance, or reduce cloud complexity, I’ll help you design a solution that makes sense — technically and strategically.

“Cloud architecture should make life easier, not harder.”
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Lyon (up to 50km)

Experience

  • ALSTOM
    Ingénieur System
    SOFTWARE PUBLISHING
    September 2025 - Today (9 months)
    Villeurbanne, France
    In this position, I have contributed to the definition and the architecture of a software framework acting as a cloud inside the train. The goal of the framework is to provide application hosting and also network connection with the train. Here are some key points on which I have contributed:
    • Design definition and technical specification of software framework which provides application hosting and network communication abstraction with train protocols.
    • System architecture based on Kubernetes.
    • Need analysis and client facing activities
    Kubernetes Virtualisation Spécifications fonctionnelles Cybersécurité relation client
  • ALSTOM
    Ingénieur systèmes
    SOFTWARE PUBLISHING
    April 2021 - September 2025 (4 years and 5 months)
    69100 Villeurbanne, France
    In this role, I had the privilege of contributing to the cutting-edge autonomous train project, focusing on developing the Perception Environment, including the Signaling Detection System and Obstacle Detection System. :
    •&: Authored the comprehensive system specification for a complex test bench, encompassing need definition and the design of system and technical architecture tailored to these needs.
    •: Utilized decision matrices and Proof of Concept (PoC) validations to address and eliminate technical uncertainties, ensuring system reliability and efficiency.
    •:
    - Automated creation of virtual test scenarios using a 3D engine, combined with field data from prototype locomotives to generate "recorded" scenarios.
    - System deception testing through the execution of scenarios in SiL (Software in the Loop), TiL (Target in the Loop), and HiL (Hardware in the Loop) environments.
    - Automated generation of test reports for performance evaluation of the system under test. &:
    • & : Docker, Kubernetes, Azure Cloud
    • : GigEVision, GeniCam, ROS, millisecond-level data stream synchronization
    • & : Python, C++, HTML, CSS, JavaScript, Vue JS, Java
    • : Efficient handling and storage of over 300TB of data, leveraging robust networking and database solutions. :
    • Provided technical support to multidisciplinary teams involved in the test bench development.
    • Contributed to the definition of the validation strategy following the V-Cycle process to ensure quality assurance and compliance with project standards.
    Architecture Python Spécifications fonctionnelles Gestion de projet Analyse des besoins
  • VINCI Energies - Lee Sormea
    Ingenieur intelligence artificielle et électronique
    SOFTWARE PUBLISHING
    August 2020 - February 2021 (6 months)
    69140 Rillieux-la-Pape, France

    - Optimisation de l'autonomie d'un boitier contenant une Raspberry Pi permettant de faire de la captation vidéo sur mouvement.
    - Amélioration d'un logiciel de traitement d'image via l'intelligence artificielle.
    - Réseaux de neurones à convolution
    - Comptage de véhicules sur vidéo via machine learning (YOLO, DEEP SORT)
    intelligence artificielle Caméra Architecture Cloud computing Architecture logicielle

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Education

  • Double diplôme en communication pour les systèmes de transport intelligents, Ingénierie intelligence artificielle
    EURECOM
    2021
    Double diplôme en communication pour les systèmes de transport intelligents, Ingénierie intelligence artificielle
  • Diplôme d'ingénieur, Electronique et télécommunications
    Télécom Saint-Etienne
    2021
    Diplôme d'ingénieur, Electronique et télécommunications

Certifications

Skill set

Categories

  • Other