mamatha User

I’m a Senior Full Stack Java Developer with over 10.7 years of experience delivering scalable backend solutions across diverse domains. I bring strong hands-on expertise in Core and Advanced Java and a focus on building maintainable systems using proven design patterns.

I’ve led end-to-end development, from requirement analysis and system design to testing and production support. In my Founder & Tech Lead role, I built a custom CRM platform with a scalable microservices architecture, REST APIs, and secure authentication/authorization using OAuth2 and JWT at the API gateway level.

I’m highly effective in ORM and data layers, with hands-on experience in JPA, Hibernate, and optimized HQL/SQL queries. I also implement quality and reliability through unit/end-to-end testing (JUnit, Protractor, Karma), resilience patterns (Circuit Breaker, Retry), and data consistency approaches like the Saga pattern.

Across platforms, I deploy and optimize in cloud-native environments using AWS (EC2, S3, CloudWatch), Docker, and CI/CD pipelines with Jenkins. I enjoy mentoring teams, improving code quality, and resolving production issues quickly—always aligning execution with business goals and strong security practices.