Senior Java Backend Developer | Spring Boot | Micr

Senior Full-Stack Developer | Java, Spring Boot, Microservices, React/Next.js

I am a senior software engineer and freelance consultant with over 8 years of professional experience delivering high-performance systems for leading financial institutions (BNP Paribas, Société Générale, Primonial) as well as innovative startups and SaaS platforms. My expertise lies in backend development with Java and Spring Boot, complemented by strong skills in frontend development with React and Next.js, allowing me to cover the entire lifecycle of complex digital projects.

Throughout my career, I have designed and implemented scalable microservice architectures, ensuring high availability, maintainability, and smooth integration with existing enterprise systems. I am particularly experienced in building API-driven platforms (REST & GraphQL) and managing large datasets with a focus on performance optimization and reliability. My work often includes database design (MongoDB, Firestore, SQL), data migration, and the implementation of robust caching strategies.

On the frontend side, I create modern, responsive web applications with a strong emphasis on user experience (UX) and clean UI design. Leveraging Next.js and TypeScript, I deliver fast, secure, and SEO-friendly solutions that integrate seamlessly with backend services. I also bring strong experience with UI frameworks such as Mantine, Material UI, and Tailwind CSS.

I have a proven track record of working on mission-critical systems in the banking and insurance industries, where quality, performance, and security are non-negotiable. My contributions include optimizing applications handling millions of records, improving system throughput, and ensuring compliance with stringent IT standards.

As an entrepreneur, I have also developed micro-SaaS products, which gave me valuable insight into the full development cycle: from gathering requirements and defining architecture, to implementing features, deploying on cloud infrastructures (GCP, Firebase, Vercel), and ensuring monitoring, logging, and error management. This allows me to bring a pragmatic and product-oriented mindset to my client projects.
Key skills & technologies:

• Backend: Java, Spring Boot, Quarkus, Microservices, REST, GraphQL
• Frontend: React, Next.js, TypeScript, Mantine, Material UI, Tailwind
• Databases: MongoDB, Firestore, PostgreSQL, MySQL
• Cloud & DevOps: Google Cloud Platform (GCP), Firebase, Docker, CI/CD pipelines
• Other: Software architecture, performance optimization, test automation, agile methodologies

I am used to working in distributed teams, communicating fluently in English and French, and adapting quickly to new environments. My approach is proactive: I don’t just write code, I help clients design the right solutions to their business challenges.
If you are looking for a reliable and versatile developer who can deliver end-to-end solutions, from backend systems to polished frontends, while ensuring quality and scalability, I would be glad to discuss your project.