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Mahamoud Said OmarMS

Mahamoud Said Omar

Software Engineer

€560/day
Saint-Paul, RE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mahamoud

🎯 Tech Lead / Senior Fullstack Java & JavaScript Developer with over 10 years of experience, I design and develop robust, high-performance, and scalable solutions. Specialized in Java, JavaScript (React, Angular, NestJS, NextJS) ecosystems, I work on complex backend subjects as well as modern and ergonomic user interfaces.

🚀 My background has allowed me to contribute to structuring projects for major players such as Bpifrance, Société Générale, and Ceetiz, in agile and high-stakes business contexts. I have thus led technical redesigns, designed application foundations (frontend and backend), implemented hexagonal architectures, industrialized CI/CD pipelines, and coached teams on best practices (TDD, Clean Architecture, Software Craftsmanship).

✅ My expertise:
- Frontend: React, Angular, NextJS, Atomic Design, accessibility, visual tests
- Backend: Java (Spring Boot, Java EE), NestJS, NodeJS
- DevOps: Docker, Kubernetes, CI/CD (Git, Jenkins), Cloud (AWS, Azure)
- Methodologies: Agile, TDD, ATDD, Pair Programming

📚 Certified Scrum Developer / Product Owner, Oracle Java SE 8, and trained in Software Craftsmanship, I am passionate about clean, testable, and maintainable code. I make it a point of honor to share my knowledge and help teams develop their skills.

🔍 On a mission, I am autonomous, rigorous, and solution-oriented. I work on fullstack development, software architecture, or technical coaching missions, with a constant concern for quality, pragmatism, and performance.
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Léon
    Senior Fullstack Developer
    CULTURE
    July 2025 - Today (1 year and 1 month)
    Saint-Paul, Réunion
    An innovative tourism player on Reunion Island, Leon offers, with its Leon Guide offer, immersive podcasts to help tourists discover unusual places or stories of Reunion Island. Innovative and intelligent generation of new episodes. Within a team of 4 people (1 PM, 1 PO, 2 developers):
    - Complete project scoping (pre-sales, architecture, client pricing)
    - Construction of an AI agent prompt for script generation
    - Construction of a specific documentary library to refine the AI agent's sources
    Mistral AI Next.js Git Typescript TailwindCSS
  • Auto-Gestion
    Senior fullstack developer
    AUTOMOBILE
    February 2024 - April 2025 (1 year and 2 months)
    Saint-Paul, Réunion
    A B2B player in the management of new and used vehicles, Auto-Gestion is a SaaS solution that optimizes the management of its vehicle fleet.

    Development of the new CRM interface and the redesign of the API.

    Within a team of five people (1 PO, 1 TL, 3 developers):
    • Scoping of structuring technical subjects
    • Construction of frontend development practices
    HIGHLIGHTS:
    • Recommendations on the architecture and frontend testing strategy.
    • Implementation of continuous integration and deployment.
    • Implementation of consent and authentication for the Google API.
    • Implementation of the Reporting/Statistics feature using an event sourcing architecture.
    Environment: NESTJS, NEXTJS, TYPEORM, TYPESCRIPT, YARN, NODEJS, AWS, POSTGRESQL, PLAYWRIGHT, TDD, GIT
  • Société Générale Corporate & Investment Banking
    Senior Developer
    BANKING AND INSURANCE
    January 2021 - January 2024 (3 years)
    Nanterre, France
    Integrated into the GBSU Business Unit, the GED SGM Docs digital capability aims to federate the entire SG group around its document management solution and accelerate the digital transformation of the GBIS entity. In particular, it meets the regulatory requirements of the various regions and the security constraints of various business processes.

    Development of the new interface and the new version of the API.

    Within a team of six people (1 PO, 1 PM, 1 UX, 3 developers):
    • Scoping of structuring functional and technical subjects
    • Construction of frontend development practices
    • Ritualization of technological monitoring
    HIGHLIGHTS:
    • Improvement of the front-end technical base of the new interface.
    • Implementation of automated accessibility and visual tests for non-regression.
    • Optimization of the performance of the search microservice.
    Environment: JAVA 17, SPRING BOOT, REACT 17, YARN 3, NODEJS, ELASTICSEARCH, RABBITMQ, AZURE, KUBERNETES, POSTGRESQL, JUNIT 5, PLAYWRIGHT, TDD, GRADLE, GIT

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Education

  • Specialized Master's Degree
    Ecole supérieure d'Informatique, Electronique et Automatique / ESIEA
    2013
    Mastère spécialisé
  • Engineer's degree
    Ecole supérieure d'Informatique, Electronique et Automatique / ESIEA
    2013
    Engineer's degree

Skill set

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