Freelancer profile translated to English.
Back to original languageAbout Quentin
Senior Java Backend Developer – 7 years of experience
Backend developer with 7 years of experience, I design and evolve robust, performant, and scalable applications, primarily around the Java ecosystem. I work in various technical environments, both in development and continuous improvement of existing systems.
Specializing in Java / Spring Boot, I have a strong appetite for distributed architectures (microservices, event-driven) and issues related to performance and reliability. I have notably worked on critical platforms integrating asynchronous communication systems like RabbitMQ.
Over the course of my assignments, I have also developed DevOps skills, allowing me to work on the entire application lifecycle: continuous integration, deployment, and industrialization using tools such as Docker, Kubernetes, Ansible, and GitLab CI/CD.
Although mostly backend-oriented, I also have frontend experience (Angular), which allows me to have a global vision of applications and to collaborate effectively with product and design teams.
I have evolved in various contexts (software publishing, business projects, internal frameworks), often in agile methodology, with the ability to adapt quickly to technical and functional challenges.
What I bring:
- Java backend expertise (API, microservices, performance)
- Effective resolution of complex technical problems
- DevOps sensibility to streamline production deployments
- Good understanding of product challenges (PSPO certification)
- Ability to intervene quickly on short or targeted assignments
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km)
Experience
- StoryzyFull-stack DeveloperSOFTWARE PUBLISHINGOctober 2025 - February 2026 (4 months)Paris, FranceSenior Java Developer – Maintenance, evolution, and technical expertise missionsWorking within an agile team of 8 developers on a platform to combat disinformation, with a focus on the system's reliability, performance, and scalability.Technical environment: Java 21, Spring Boot, Angular 18, microservices architecture, asynchronous communication via RabbitMQ (event-driven), full CI/CD with Docker, Kubernetes, Ansible, and GitLab CI/CD.🚀 Value brought
- Platform stabilization through rapid resolution of production incidents
- Contribution to the technical design of new features (scalability, decoupling, robustness)
- Development and delivery of features in a distributed microservices context
- Continuous improvement of code quality and maintainability
💡 PositioningInterventions adapted to client needs:- Production problem solving (debugging, critical incidents)
- Technical audit (architecture, performance, code)
- Occasional support for Java / Spring Boot backend development
- Optimization and reliability improvement of existing systems
- VAYANDATABackend EngineerSOFTWARE PUBLISHINGJune 2024 - October 2025 (1 year and 4 months)Antony, FranceJunior Java Developer – Maintenance, evolution, and technical expertise missionsWithin an agile team of 4 developers (2 front-end, 2 back-end), I contributed to the maintenance and evolution of an application in a Java 8 environment.I worked on a complete scope, combining backend development, participation in functional and technical design, as well as interventions on the deployment chain.Technical environment: Java 8, Spring, API-oriented architecture, CI/CD with GitLab CI/CD.🚀 Value brought
- Bug fixing and application stabilization in production
- Participation in the design of new features
- Backend feature development and delivery
- Updating and improving CI/CD pipelines for module deployment
- Contribution to smooth deliveries and overall product quality
- Berger-LevraultFull-stack DeveloperDIGITAL AND ITMarch 2022 - March 2024 (2 years)Toulouse, FranceJunior Java Developer – Maintenance, evolution, and technical expertise missionsWorking within an agile team of 10 developers on a web application for local authorities, with a focus on structuring needs, robustness of backend services, and deployment industrialization.Technical environment: Java 17, Spring, RabbitMQ, front-end in FreeMarker, deployment via Ansible (no Docker).🚀 Value brought
- Scoping needs and writing functional and technical specifications
- Active participation in agile rituals (planning, tracking, continuous improvement)
- Design and development of API-oriented backend services
- Implementation and automation of deployments (Ansible)
- Supporting the team in upskilling DevOps skills
- Upgrading Java version from 8 to 21 and Spring from 3 to 5
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Education
- Master's Degree, Computer Science applied to Business Management MIAGEUniversité Paul Sabatier Toulouse III2019Master's Degree, Computer Science applied to Business Management MIAGE
- Master's degree, Computer Science applied to Business Management MIAGEUniversité Toulouse 1 Capitole2019Master's degree, Computer Science applied to Business Management MIAGE