Freelancer profile translated to English.

Description

Full-Stack & Cloud DevOps Engineer | High-Traffic Architectures

Graduated Engineer (EPITA) and AWS Professional certified, I assist companies in the design, optimization, and deployment of critical and scalable applications. With 5 years of experience in demanding environments, I combine a dual expertise: creating fluid web interfaces (Full-Stack) and ensuring robust server infrastructure (DevOps).

My areas of intervention:

DevOps & Cloud (AWS): Automation (CI/CD), containerization (Docker/Kubernetes), predictive maintenance, and infrastructure cost optimization.
Backend & API: Design of microservices architectures capable of handling millions of requests (Node.js, Python, PHP).
Frontend Web & Mobile: Development of responsive and performance-oriented interfaces (React, JavaScript).

They trusted me:

Air France: Optimization of real-time flight operations calculation algorithms.
Back Market & Veepee: Management of traffic peaks (Black Friday, event sales) and user experience redesign.
SensioLabs: Creation of custom web applications for major clients.

Languages

French
Native or bilingual
English
Fluent
Norwegian
Conversational
Swedish
Fluent
Danish
Native or bilingual
Spanish
Conversational

Workplace preferences

Remote only

Primarily works remotely

Air France / Air France-KLM
DevOps & Full-Stack Engineer – Flight Operations Optimization
AVIATION AND AEROSPACE
February 2023 - May 2025 (2 years and 3 months)
Paris, France
As an external DevOps & Full-Stack engineer for Air France's Information Systems Directorate, I was tasked with optimizing critical flight operations tools.

My main achievements include:
- Development and deployment of real-time calculation algorithms to optimize flight plans and reduce fuel consumption.
- Implementation of data pipelines (CI/CD) to process technical reports from aircraft sensors upon landing (predictive maintenance).
- Strengthening the scalability of reservation and check-in servers during seasonal peak loads.

An intense experience requiring absolute reactivity to the constraints of the aviation sector.
React.js DevOps Python or C++ Real-time Data Processing (Data Pipeline) predictive maintenance
Blizzard Entertainment
Senior Software Engineer – Game Engine & Network (Gameplay)
VIDEO GAMES AND ANIMATION
September 2021 - March 2026 (4 years and 6 months)
Irvine, United States
Hired very quickly after my studies to join the technical team responsible for multiplayer infrastructure. In less than 5 years, I advanced to the Senior Engineer position thanks to my mastery of high-load architectures.

My main missions:
- Optimization of network code (netcode) in C++ to reduce player latency (ping) during global esports competitions.
- Development and deployment of ultra-fast matchmaking algorithms capable of handling millions of simultaneous connections without crashing servers.
- Design of internal automation tools for the design team, allowing for on-the-fly integration of new graphical updates.

An intense experience in the entertainment industry, combining a passion for technology, absolute rigor in the face of connection peaks, and a very stimulating Californian corporate culture.
Python or C++ Network Programming Multiplayer Architecture & Matchmaking Performance Optimization Cloud Gaming / Server Scalability
Back Market
Backend / Cloud Developer Freelance
E-COMMERCE
July 2022 - January 2023 (6 months)
Paris 17, France
Intervened as a freelance consultant to strengthen the technical team during the critical Black Friday and year-end holiday period.

My achievements during this assignment:
- Optimization of payment APIs and the shopping cart system to support massive winter traffic peaks.
- Migration of microservices to a more stable Cloud architecture (AWS) to reduce platform infrastructure costs.
- Rapid resolution of critical production bugs to ensure a smooth user experience during flash sales.

A short but intense mission, ideal for proving my ability to quickly integrate into a tech team and deliver high-performance code under high pressure.
Cloud Architecture (AWS) Back-End Development Microservices Server Architecture

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Scientific Baccalaureate (Mathematics Specialization)
Lycée Condorcet
2016
Obtention du diplôme avec Mention Très Bien. Option Informatique et Sciences du Numérique (ISN) qui a confirmé ma vocation pour le développement logiciel.
Preparatory Classes for Grand Engineering Schools (CPGE) - MPSI Track
Lycée Chaptal (Paris)
2018
Filière Mathématiques, Physique et Sciences de l'Ingénieur (MPSI) puis dominante Informatique. Deux années de formation intensive exigeant une grande rigueur analytique et une forte capacité de travail sous pression.

Check out Mathias's education

Meta Front-End Developer Professional Certificate
Meta (formerly Facebook) / Coursera
2023
Web Optimization Git UI/UX Design JavaScript HTML5 Mobile Application React.js SEO CSS3

Mathias T.

Full-Stack Web Developer — React / Next.js / Node

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