Freelancer profile translated to English.

Description

Over 10 years of experience in designing and developing critical solutions within demanding sectors such as banking, payments, energy, e-commerce, and digital services.

Expert in Java and Kotlin ecosystems, I am involved in the entire application lifecycle: technical scoping, architecture, development, software quality, performance, security, and operations.

I support teams in implementing microservices, hexagonal, and domain-driven (DDD) architectures, while ensuring quality through TDD, BDD, code reviews, and continuous integration practices.

My areas of expertise notably include Spring Boot, Kafka, Angular, AWS, Kubernetes, REST APIs, Gatling load testing, application monitoring, and continuous performance improvement.

Recognized for my technical leadership, I support teams in their skill development and actively contribute to architectural decisions and the success of strategic projects.

Industry field of expertise

Languages

French
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Paris (up to 10km)

Easybiz
Lead Java & DevOps Developer
TECH
March 2025 - Today (1 year and 5 months)
Luxembourg, Luxembourg
Acting as Lead Developer, I am responsible for implementing a hexagonal architecture, migrating Java versions, and conducting code audits to improve the performance of the billing, electronic signature, and payroll services application. Working with various stakeholders to ensure product quality.

Functional and technical analysis
Implementation of a hexagonal architecture
Migration from Java 11 to Java 21
Decommissioning Spring Boot in favor of Ktor across all payment services
Optimization of REST APIs for performance and scalability
Implementation of integration tests
Performance load testing with Gatling, bottleneck identification, and JVM, SQL, and application optimizations
Optimization of application resources using multithreading, JVM, and Garbage Collector.
Implementing solutions with consideration for application security such as SAST and DAST
Leading technical workshops on hexagonal architecture and fundamental DDD principles
Deployment and operation of AWS services such as Lambda, RDS, EC2, SNS, and S3.
Solid AWS Cloud experience (Lambda, EC2, RDS, S3, SNS, VPC) and CI/CD automation.
Setting up and managing GitLab CI/CD pipelines
Ensuring monitoring, logging, and alerting to guarantee system availability and performance.
Integration of SonarQube for code quality.
Contribution to development standards and architecture reviews to ensure application resilience, scalability, and security
Implementation of good code quality practices (TDD/BDD, refactoring, SOLID)
Supporting and mentoring junior developers through technical coaching, code reviews, and architecture workshops
Participation in production incident management, post-mortem analysis
Hexagonal Architecture Java 21 Spring Boot Amazon Web Services DDD
Compagnie Des Alpes
Senior Full Stack Java & Kotlin / JS Developer
ENTERTAINMENT AND LEISURE
November 2023 - January 2025 (1 year and 2 months)
Paris, France
Context
I was responsible for developing new features and maintaining existing solutions across the company's various B2C and B2B sales channels. Discussing with business stakeholders on different topics and performing various scoping activities before proceeding with feature development.

Missions accomplished
Functional and technical analysis
Technical scoping
Writing technical specifications
Designing and optimizing REST APIs for performance and scalability
Developing Angular interfaces with a focus on a fluid user experience.
Migration to a microservices architecture
Setting up Kafka infrastructures
Architecture evaluation and impact assessment
Carrying out Proof of Concepts (POCs) to validate the feasibility of technical choices for integrating the new payment provider.
Setting up builds and associated testing and maintenance tools
Various optimizations and evolutions
Participating in continuous improvement and the implementation of best practices
Collaborating with various technical and business teams to align on business needs.
Change management and evolution management
RUN support
Leading technical workshops
Craftsmanship practices
Java Kotlin Microservices Spring Boot Angular 16
TIBCO
Senior Full Stack Developer
TELECOMMUNICATIONS
March 2022 - October 2023 (1 year and 7 months)
Nantes, France
Context
I was responsible for developing new features for the application used by field technicians and the equipment tracking application in various warehouses.

Missions accomplished
Functional and technical analysis
Developing various Backend features with Spring Boot and Frontend with Angular
Migration from Java to Kotlin
Proposing containerization of applications.
Implementing a new git workflow.
Lead on the stock management and equipment traceability project.
Implementing a hexagonal architecture for the traceability project.
Developing the warehousing addressing system.
Analyzing change requests and reported anomalies
Migrating applications to the AWS cloud.
Setting up and maintaining CI/CD in the AWS cloud
Providing support for developed applications.
Writing corresponding documentation.
Technical coaching for developers
Decommissioning stored procedures in favor of Spring Data
Carrying out POCs to validate the feasibility of Kafka integration
Implementing services with Kafka to improve product traceability.
Implementing OpenSearch in AWS for application monitoring, log analysis, and as a search engine with OpenSearch.
Proposing Kafka integration
Proposing the implementation of Craftsmanship practices
Java Spring Boot Angular 13 Kotlin Apache Kafka