Freelancer profile translated to English.

Description

Senior Java developer specializing in demanding financial environments, with solid experience within two major market institutions: Société Générale CIB in Hong Kong and currently BNP Paribas CIB in consulting.

My preferred area: high-performance constraint systems — memory optimization, JVM tuning, advanced algorithms and data structures, on both monolithic and microservices architectures with Spring Boot.

I work on concrete issues:

🔍 Performance Audit & Optimization (profiling, bottleneck detection, latency reduction)

🧠 Algorithmic Refactoring and appropriate data structure selection

⚙️ Monolith migration or splitting → microservices

🤖 Integrating AI into existing Java pipelines

Accustomed to critical environments, tight deadlines, and international teams (experience in Hong Kong), I adapt quickly to complex contexts.

Available for one-off missions: technical audit, team reinforcement, performance expertise.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

Société Générale CIB Hong Kong
Java Spring Boot Backend Developer
January 2025 - December 2025 (11 months)
Hong Kong
• • Responsible for developing risk indicators on a pivot asset, in line with the needs of the Risk teams in Asia and Europe.
• • Contribution to the development of an event-driven microservices architecture in Java 21 / Spring Boot
• • Optimized algorithms and data structures, significantly reducing P&L calculation execution times.
• • Processed large volumes of data with Apache Spark to ensure scalability and performance.
• • Performed data reconciliation and analysis to ensure the accuracy of financial results (Business Analyst).
• • Development and maintenance of Kafka (Azure Notifications) processes to ensure reliable real-time streaming.
• • Participation in deployments via XLDeploy on Kubernetes (Azure) and support for Jenkins/GitHub Actions pipelines.
• • Contributed to the migration of a legacy pivot asset to a modern architecture without disrupting business operations.
Technical stack: Java 21, Spring Boot, Apache Spark, Azure, Kubernetes, PostgreSQL, Docker, Jenkins, Grafana.
Java Spring boot Architecture Performance Improvement Artificial Intelligence
BNP Paribas CIB
Java Spring Boot Backend Developer
September 2022 - October 2024 (2 years and 1 month)
Paris, France
• • Participation in the development of a Data Hub to store and manage financial files (pricing data, contracts).
• • Development and optimization of a performance-oriented monolithic Spring Boot application.
• • Design and maintenance of REST APIs for processing PDL file data.
• • Participation in the migration from Java 8 stack to Java 17, with performance improvements.
• • Profiling and optimization of the application via IntelliJ Profiler to reduce memory usage and execution time.
• • Contribution to significant refactorings to improve code readability and maintainability.
• • Performance and load testing with Gatling.
• • Monitoring application health and resources via Grafana.
• • Contribution to the definition of a Big Data / cluster architecture for processing and storing large volumes.
Technical stack: Java 8, Java 17, Spring Boot, Apache Spark, Cassandra, Gatling, Docker, Jenkins.
Laboratoire CHart
Java Software Developer
April 2022 - July 2022 (3 months)
Paris, France
• • Contribution to the design of accessible GUI applications in Java 17.
• • Implementation of multithreading to execute voice processing and UI tasks in parallel (interface responsiveness).
• • Development of modern interfaces in JavaFX: responsive components and CSS styling.