Adarsh Lenin

Backend-focused Software Engineer with 3 years of experience developing and maintaining enterprise Java applications and microservices. Strong experience in Java 8+, Spring Boot, REST APIs, Hibernate, JPA, PostgreSQL, SQL, and microservices architecture. Experienced in backend development, API integration, business logic implementation, database optimization, unit and integration testing, debugging, production issue resolution, and CI/CD activities.

Software Engineer – Associate Consultant at EY GDS (2026-02 – Present)

• Developing backend solutions using Guidewire InsuranceSuite for enterprise insurance applications.
• Implementing business rules, backend integrations, and insurance workflows.
• Collaborating with cross-functional teams to deliver enterprise application solutions.

Senior Solution Engineer at IBS Software (2023-07 – 2026-01)

• Developed and maintained Java Spring Boot microservices for airline crew scheduling and training management systems.
• Designed and implemented RESTful APIs for enterprise applications and integrations between multiple modules.
• Developed backend services and complex business logic using Java, Spring Boot, Hibernate, JPA, and PostgreSQL.
• Implemented application-level validation, exception handling, logging, debugging, and troubleshooting for backend services.
• Worked within a microservices-based architecture following API-driven design principles.
• Improved database performance by approximately 40% through SQL query optimization and indexing.
• Developed unit and integration tests using JUnit, Mockito, and PowerMockito.
• Performed root cause analysis and resolved critical production and UAT issues, including debugging and defect resolution.
• Participated in CI/CD deployment and release activities across development and production environments.
• Provided onsite customer support in South Korea, handling production deployments, technical troubleshooting, and client coordination.

B.Tech in Computer Science and Engineering – College of Engineering Chengannur (2019 – 2023)