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Madlan Mbouala-MantalaMM

Madlan Mbouala-Mantala

Senior Fullstack Java – React JS Developer

€350/day
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Madlan

🎯 Fullstack Java / React Developer | Mobile & Web Expert | +7 years of experience

Hello đź‘‹
Looking for a developer capable of quickly delivering high-performing, robust, and scalable applications? I will support you from start to finish on your web and mobile projects, with an approach focused on business value and software quality.

âś… What I bring you:
  • Solid expertise in Java / Spring Boot, React / React Native, Angular technologies, with a true DevOps culture (CI/CD, Docker, AWS…).
  • Proven experience in microservices architecture, security (Keycloak, OAuth2), and testing (TDD, SOLID, Clean Code).
  • Ability to manage the project from A to Z: requirement gathering, design, development, deployment, documentation, and maintenance.
  • An autonomous consultant or technical lead posture, capable of leading a team, prioritizing tasks, and delivering in agile (Scrum / Kanban).

🚀 What sets me apart:
  • A true understanding of business challenges: I have worked in the banking, insurance, energy, health, and education sectors.
  • An approach focused on concrete deliverables and measurable results, with automated workflows, smooth deployments, and code quality guaranteed by SonarQube.
  • A problem → solution mindset: I am involved in creation, redesign, and troubleshooting phases.

📦 Projects I often undertake:
  • Development of high-performance mobile applications (React Native / Expo)
  • Creation of business web portals (React / Angular + Java Spring Boot backend)
  • Implementation of microservices and secure architectures
  • Interfacing with complex systems (Temenos, Orange Money, SOAP/REST API, Keycloak…)
  • Automation of business processes through custom workflows

Feel free to contact me to discuss your needs: I adapt to your context and commit to results đź’ˇ
  • French

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Energy Pool | ITBIS
    IT Consultant
    ENERGY AND UTILITIES
    July 2024 - March 2025 (9 months)
    Kanban Methodology
    • Analysis, design, and development
    • Participation in Agile ceremonies, daily stand-ups
    • Technical documentation writing
    • Back-end development with Kotlin
    • Continuous improvement of modules and fixing reported bugs
    • Use of Springboot and Spring MVC framework
    • Participation in Agile rituals
    • Daily meetings for development phase monitoring
    • Test Driven Development
    • Use of Git for versioning
    • Participation in writing and updating technical documentation

    JIRA, Java 17, Spring Boot, Angular 17, REST API, SonarLint, SonarQube, PostgreSQL, Gradle, Github, Liquidbase, Jenkins, Kubernetes, Typescript, Quartz Scheduler, Hexagonal Architecture, Microservices, Jasmine, Speculoos
    Kotlin Spring boot Java Hexagonal Architecture CI/CD
  • ENEDIS
    IT Consultant
    January 2024 - May 2024 (5 months)
    Scrum Methodology Missions
    • Analysis, design, and development
    • Participation in Agile ceremonies, daily stand-ups
    • Technical documentation writing
    • Deployment planning and monitoring
    • Back-end development with Java
    • Continuous improvement of modules and fixing reported bugs
    • Use of Springboot and Spring MVC framework
    • Participation in Agile rituals
    • Daily meetings for development phase monitoring
    • Use of Git for versioning
    • Participation in writing and updating technical documentation

    JIRA, Java 8, Spring Boot, Angular 10, REST API, SonarLint, SonarQube, PostgreSQL, Maven, Gitlab, Flyway, Jenkins, Kubernetes, Teradata, Typescript
  • Nogae Media
    IT Project Manager Consultant
    October 2017 - May 2018 (7 months)
    Scrum Methodology
    • Analysis and modeling
    • Functional requirements analysis
    • Writing the specifications document
    • Backlog management
    • Conducting Daily stand-ups and sprint management
    • Task planning and assignment to teams
    • Progress monitoring
    • Identifying blocking points to implement workarounds
    • Providing expertise to solve problems (root cause)
    • Client reporting
    • Ensuring communication with teams
    • Infrastructure design and implementation
    • Ensuring development quality

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Education

  • Master 2
    ESTM
    2017
    Master 2
  • Professional License in Computer Systems and Networks
    ESGAE
    2015
    Licence Professionnelle en Systèmes Informatiques et Réseaux

Skill set

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