Freelancer profile translated to English.
Back to original languageAbout Alexis
I am a full-stack developer passionate about designing modern, high-performance, and secure web applications.
I design solutions from start to finish — from design to deployment — relying on a solid and mastered technological ecosystem.
What I can do for you:
Create a complete web application (front + back + database)
Develop or integrate a REST / GraphQL API
Create a professional and responsive showcase website
Implement internal tools, dashboards, or automations
Optimize the performance, security, and CI/CD of your infrastructure
Complete technical stack:
▪ Front-end: React · Next.js · Angular · Tailwind · SCSS · HTML5 · CSS3
▪ Back-end: Node.js · NestJS · Express.js · Java (Spring Boot) · Python (FastAPI, Flask) · PHP (Laravel) · COBOL
▪ Databases: Supabase · PostgreSQL · MySQL · MongoDB · SQLite · PL/SQL
▪ DevOps / Infra: Docker · Kubernetes · GitHub Actions · Jenkins · CI/CD · Traefik · Railway · Vercel
▪ Security & Tests: JWT · Auth · Jest · Postman · API testing · Monitoring
▪ Tools & Environment: Git · Linux · VS Code · Jira · Figma
Main languages: JavaScript · TypeScript · Java · Python · C · COBOL · SQL
Notable personal projects:
Nexus: Student platform (Next.js / Supabase / React)
Time Manager: DevOps application with CI/CD and GitHub Actions automation
Values & work method:
Clear communication, documented code, regular follow-up
On-time delivery with a "solution-oriented" approach
Transparent and human collaboration with each client
Available for one-off or recurring missions, remotely.
Contact me to discuss your project — guaranteed response within 24 hours.
French
Native or bilingual
English
Conversational
Can work on-site
Marseille (up to 10km)
Experience
- SOPRASTERIACOBOL Development EngineerAVIATION AND AEROSPACEJune 2025 - Today (1 year and 2 months)Aix-en-Provence, FranceCurrently in a work-study program at Sopra Steria, I am part of the Aéroline division, which supports major players in the aeronautics sector in their digital transformation.My role involves analyzing, developing, and testing evolutions on a critical information system comprising over 70 applications, in collaboration with an international team (France / India).Main responsibilities:Analysis of functional and technical client needsDevelopment and maintenance of applications in COBOL, C, PL/SQL, Oracle, MySQL, and Unix/Linux environmentsQualification, testing, and validation of evolutionsParticipation in production monitoring and project managementWriting technical documentation and regular reporting to the project managerTechnical environment:COBOL 85, C (ANSI), Ksh 88, Oracle, MySQL, PL/SQL, Informix Database,Unix & Linux Systems, SVN / ClearCase / GIT, HP ALM / UFTWhat this work-study program brings me:Concrete experience on a critical project impacting millions of usersSkill development in a complex and collaborative technical environmentDirect interaction with functional analysts, architects, technical leaders, and project managersThis experience allows me to strengthen my skills in back-end development, agile project management, and teamwork in a demanding industrial environment.
- Mon Centre RéférenceFull Stack DeveloperTECHMarch 2024 - March 2025 (1 year)Marseille, FranceDuring this assignment, I joined a dynamic and passionate team with the goal of designing and maintaining complete web applications. I had the opportunity to work on a front-end using Angular, managing routes and REST API integration, while ensuring a fluid and ergonomic user experience. On the back-end, I set up a Parse server coupled with Node.js to manage the REST API and real-time notifications, thus ensuring smooth data flow and responsive features.In parallel, I familiarized myself with an advanced Cloud & Infra environment, using Docker and Kubernetes to deploy and orchestrate microservices. Transitioning to a CI/CD solution (via GitLab or GitHub Actions, for example) allowed me to effectively automate our build and deployment processes. I also paid particular attention to security, whether it was JWT authentication or meticulous error handling, to guarantee the reliability and protection of exchanged data.Thanks to these improvements, we reduced the application's loading time by 30% and optimized deployment times by 40%. This experience allowed me to strengthen my skills in full-stack development, DevOps methodologies, and software quality, while working in a collaborative environment where innovation and performance were key priorities.
- THALESOperator-ControllerAVIATION AND AEROSPACEJuly 2023 - August 2023 (1 month)Gémenos, FranceDuring these temporary assignments, I had the opportunity to work in a demanding industrial environment specializing in the manufacturing and security of electronic equipment. My role primarily consisted of ensuring the quality control of electronic components, performing rigorous checks to guarantee their compliance with safety and performance standards.I also participated in conformity testing and the identification of potential product vulnerabilities, applying strict inspection and evaluation protocols. This work required rigor, precision, and attention to detail to ensure reliable and secure equipment.This experience allowed me to strengthen my skills in industrial quality, technical data analysis, and adherence to safety standards, while working in a structured environment where collaboration and methodology were essential.
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Education
- Professional Title (TP) Level 7Epitech - The School of Computer Excellence2025Cette formation m’offre une approche approfondie des fondamentaux avancés de l’informatique, en me permettant de développer mes compétences sur des problématiques complexes liées à la programmation, à la sécurité et à la gestion de projet. 🔹 Programmation système et bas niveau – Maîtrise des concepts liés aux systèmes d’exploitation, à la gestion de mémoire et aux performances applicatives 🔹 Algorithmique et structures de données avancées – Optimisation des performances et implémentation de solutions efficaces 🔹 Sécurité informatique et gestion des vulnérabilités – Identification, exploitation et correction des failles de sécurité 🔹 Tests unitaires et qualité du code – Mise en place de tests automatisés et amélioration des bonnes pratiques de développement 🔹 Gestion de projet et méthodologie Agile (SCRUM) – Travail en équipe, gestion des sprints et développement itératif pour une meilleure organisation
- CertificationLearn.web-develop.me – Secure Development Training (Front & Back)2022Cette formation, dirigée par Lior Chamla, m’a permis d’approfondir mes connaissances en développement sécurisé, en me concentrant sur les bonnes pratiques pour concevoir des applications web et mobiles robustes. J’ai appris à sécuriser les interfaces front-end et back-end, en mettant en place des stratégies de protection contre les vulnérabilités courantes (XSS, CSRF, injections SQL). Une part importante de la formation était dédiée à la conception et sécurisation d’API RESTful, incluant l’authentification (JWT, OAuth2) et le chiffrement des données. Grâce à cette formation, j’ai acquis une meilleure compréhension des normes de cybersécurité appliquées au développement et des méthodes pour renforcer la sécurité des applications dès leur conception, tout en intégrant les bonnes pratiques du développement moderne avec PHP et Composer.