Freelancer profile translated to English.

Description

TechLead Fullstack with 10+ years of experience in designing high-traffic web platforms. Expert in Java/Spring Boot, React, and microservices architectures on AWS and internal cloud, I am involved from the design to the production of critical services. I support teams in their skill development and the implementation of Software Craftsmanship practices (code review, CI/CD, pair programming, SOLID).

Product-oriented, I ensure the balance between technical challenges and user needs.

Industry field of expertise

Languages

French
Native or bilingual
English
Fluent

Workplace preferences

Can work on-site

Paris (up to 50km)

SOCIETE GENERALE [Prestation Alliance High Tech]
Java Dev Lead
February 2024 - Today (2 years and 4 months)
• Evolution of the risk calculator to ensure regulatory compliance (RWA, ECL, IFRS9) at the group level
• Design and development of critical backend services in Java / Spring Boot:
◦ Implementation of calculation engines
◦ Exposure via REST API for the group's various entities
• Technical modernization leadership:
◦ Java 11 → Java 21 migration
◦ Spring Boot 2 → 3 migration
◦ Adoption of the OpenAPI standard for API documentation and standardization
• Implementation of a quality strategy:
◦ Development of automated tests (integration, non-regression) with JUnit and FitNesse
◦ Improvement of the platform's overall reliability
• Analysis and design of new developments in conjunction with business and product teams
• Optimization of performance and costs on AWS:
◦ Service tuning
◦ Improvement of observability and monitoring
• Technical coaching of developers:
◦ Support on architecture and implementation choices
◦ Code review and dissemination of best practices
• Development of React interfaces for monitoring and controlling calculators
• Industrialization and deployment:
◦ Optimization of the CI/CD pipeline
◦ Release management and deployment on AWS
• Reliability & production:
◦ Implementation of resilience tests (Disaster Recovery)
◦ Improvement of production stability
• Innovation & productivity:
◦ Integration of GitHub Copilot
◦ Supporting the team in its adoption
Amazon Web Services Java React.js Spring REST APIs
BNP Paribas Personal Finance [Prestation HN Services]
Fullstack Tech Lead
BANKING AND INSURANCE
February 2021 - February 2024 (3 years)
Architecture & development:
• Implementation of a new application architecture:
◦ Participate in various workshops with the tribe architect, PO, and PM to define the target architecture.
◦ Collect business needs with the help of business analysts and design sequence and data model diagrams
◦ Analysis of the legacy application to define the different enablers and external dependencies
• PoC of the solution with a microservice architecture, Restful APIs, and a SPA (single page application)
◦ Implementation of a maven archetype (project template) to generate springboot microservices in hexagonal architecture
◦ Development of a SPA project template in React
◦ Deployment of components on a test environment (IBM cloud) to validate the PoC
• Solution implementation (7 developers, PO, SM, 2 BAs, QA)
◦ Development of REST services in Java, Springboot, and Kafka
◦ Development of the Front-end journey in React
◦ Integration of the internal design system component library
◦ Design of Restful APIs
• Contextualization of the application to share REST services and Front-end for different brands
◦ Contextualize the React front-end to load/remove screens according to the seller or product type
◦ Contextualize the React front-end to dynamically load a new theme according to the seller type
◦ Contextualize the backend services to activate or deactivate features according to seller type
DevOps:
• Creation of different environments on an internal cloud (IBM Cloud)
• Implementation of the CI/CD pipeline with jenkins, maven, docker, sonar, iqserver, helm, kubernetes
• Implementation of monitoring dashboards with splunk and Dynatrace
Java Microservices React.js Spring boot Hexagonal Architecture
société générale
Fullstack Tech Lead
May 2018 - December 2020 (2 years and 7 months)
Project: Digital 150k users
Architecture & development:
• Migrate to a new micro-service architecture:
◦ Propose a micro-service architecture to address the various problems of a monolithic application
◦ Implement an API Gateway to route, control, and secure API calls to micro-services.
◦ Integrate a distributed tracing system for the different micro-services and centralize these traces in a ZipKin server to consult and analyze the client request workflow.
◦ Integrate and configure a circuit breaker at the sidecar level
◦ Externalize the configuration of the different micro-services of the architecture to a configuration server
◦ Develop a Discovery service for the application's different micro-services
• Development of new features in NestJs and React
◦ Code review
◦ Migration to the use of Hooks
◦ Participate in the implementation of Redux on the front-end and NestJs on the back-end
• Implement a REST API security system:
◦ Design and development of an authorization micro-service with JWT.
◦ Define and elaborate roles, permissions, and the JWT token structure
◦ Integrate JWT token validation at the API level
• Animation and organization of DOJO and code review sessions.
DevOps:
• Define the CI & CD pipeline strategy with the team
• Create and configure Jenkins jobs for CI & CD
• Analyze and identify external system dependencies to monitor them and mock data.
• Automate the installation and configuration of platform components with Ansible.
• Develop and maintain Ansible Playbooks and jobTemplates
• Coach the team to respect the release process
• Configure and monitor Openshift services and pods.
• Define and develop load testing and performance testing with the team