Freelancer profile translated to English.

Description

Full-Stack Developer | Backend Java Spring Boot Specialist

Full-stack developer with 6 years of experience, notably at BNP Paribas and Decathlon in Japan with the consulting firm Abbeal.

I design, develop, and maintain applications that address my clients' business challenges while emphasizing their long-term sustainability with good code and architecture practices.

EXPERIENCES

- Decathlon Japan (Java, Spring, Vue.js)

- BNP Paribas (Java, Spring, Angular)

TECHNICAL EXPERTISE

- Backend: Java, Spring Boot

- Frontend: Vue.js, Angular

- Data: PostgreSQL, MySQL, Kafka

- Clean code: Hexagonal Architecture, Clean Architecture, TDD

- Cloud: AWS, GCP

SERVICES OFFERED

- Development of complex business applications

- Web application development

- Design of secure and performant REST APIs

- Modern and scalable software architecture

- System integrations and cloud migrations

- Performance optimization and scalability

Contact me directly on Malt if you are interested!

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent
Japanese
Conversational

Workplace preferences

Can work on-site

Paris (up to 50km), Lyon (up to 50km), Bordeaux (up to 50km), Marseille (up to 50km), Lille (up to 50km)

Polycea
Freelance Full-Stack Developer
CONSULTING AND AUDITS
October 2025 - Today (8 months)
Development of tools for the Geological and Mining Research Office (Géorisques, InfoSols).

Achievements:

- Development and maintenance of several applications (Géorisques, InfoSols, OREOL, Arretify)

Technologies:Java Spring Boot, Angular, Kafka, PostgreSQL, Docker
Spring Boot Spring Batch Java Angular PostgreSQL
Abbeal (Client final : Decathlon Japan)
Freelance Full-Stack Developer
SOFTWARE PUBLISHING
May 2025 - July 2025 (2 months)
Tokyo, Japan
Freelance mission as a direct continuation of my V.I.E.

Achievements:

- Maintenance and evolution of 3 critical e-commerce applications
- Development of new features according to business needs
- Technical support and bug resolution independently
- Direct client management in an international environment
- Complete knowledge transfer to my replacement

Technologies:Java Spring Boot, Vue.js, PostgreSQL, MySQL, Kafka, GCP Cloud Run
Java Spring Boot Apache Kafka Google Cloud Platform (GCP) MySQL
Abbeal (Client final : Decathlon Japan)
Full-Stack Developer (V.I.E)
SOFTWARE PUBLISHING
May 2023 - April 2025 (1 year and 11 months)
Tokyo, Japan
Strategic mission to develop e-commerce and inventory management applications for Decathlon Japan.

Achievements:

- Development of 3 strategic applications (order aggregation, stock synchronization, product data)
- Complete migration AWS → GCP with Terraform
- Integration of Next Engine, Shopify, Rakuten, and Decathlon internal systems
- Implementation of hexagonal architecture on all projects
- Kafka Consumer for multi-source data aggregation

Technologies:Java Spring Boot, Vue.js, Kafka, PostgreSQL, MySQL, AWS, GCP, Docker, Terraform
Spring Boot Java Vue.js Apache Kafka API