Mohamed M.

Is your backend holding up in development but struggling in production? I design robust, testable, and scalable Spring Boot architectures — validated on platforms with millions of users.

Senior Backend Engineer with 10 years of experience, I specialize in REST API design, microservices, code quality, security, and real-world distributed systems challenges in production.

I have worked at SAP Concur on a platform used by millions of users, as well as on an IoT platform processing real-time telemetry from thousands of connected devices.

My expertise:

✔ Clean and maintainable microservices architecture

✔ Code quality, unit and integration tests (JUnit, Mockito, MockMvc)

✔ Spring Boot, Spring Security, REST APIs

✔ Production performance and stability optimization

✔ Docker, Linux, PostgreSQL, AWS (EC2, RDS, S3)

✔ International full remote teams for 5 years — autonomous and proactive

I particularly focus on structuring, making reliable, and improving the quality of existing backends.

Available for long-term missions (6 months+) starting August 2026.