•Developed Spring Batch jobs processing 2M+ daily inventory records for E.Leclerc POS using AWS Lambda, S3, and MS SQL Server, boosting retail operations and ensuring fast product access for 1M+ monthly users.
•Architected and optimized GraphQL schemas and resolvers to minimize over/under-fetching by 40%, ensuring seamless data flow between microservices and dynamic Angular and React JS frontends.
•Automated grocery data validation with Oracle PL/SQL scripts, improving data consistency by 30%.
Developed a mobile-responsive front-end web application for Covea, an insurance company, using Flex and Angular Material, resulting in a 20% increase in business and improved customer satisfaction.
Additionally, I led the migration of an insurance management product from Struts to Spring Boot and Angular, enhancing the product and acquiring five new clients across Europe.