May 2025 – Mar 2026 · 10 mos · Kolkata, West Bengal, India · Hybrid

• Engineered caching solutions using Redis to reduce database load by 40% and boost application performance by 20%. • Worked on messaging queues (Kafka) for asynchronous processing of information transactions, increasing system throughput and reliability. • Worked on Linux shell scripts for data analysis and load. • Participated in DevOps activities, including setting up CI/CD pipelines with Jenkins, and deploying applications to AWS using Docker. • Authored comprehensive unit and integration tests using JUnit and Mockito, achieving and maintaining over 90% code coverage, and ensuring code quality.

Apr 2024 – May 2025 · 1 yr 1 mo · Kolkata, West Bengal, India · Hybrid

• Architected and developed core backend services for a high-traffic B2B sales platform using Spring Boot, implementing microservices architecture to enhance scalability. • Designed, coded, and deployed new RESTful APIs for product management, improving data retrieval latency by 30% by applying data structure concepts.

Oct 2023 – Apr 2024 · 6 mos · India · On-site

• Architected and developed core backend services for a high-traffic airway platform using Spring Boot, implementing microservices architecture to enhance scalability.

Dec 2022 – Oct 2023 · 10 mos · Hybrid

• • Managed project dependencies with Maven, and contributed to the design and implementation of database schemas on PostgreSQL and MongoDB. • Optimized application performance by fine-tuning Hibernate queries and database indices, leading to a 15% improvement in overall transaction speed. • Authored technical documentation for API endpoints and system architecture, facilitating onboarding for new team members. • Conducted rigorous code reviews and provided constructive feedback to junior developers, ensuring adherence to coding standards. • Utilized Git for version control within an Agile (Scrum) team, participating actively in sprints and daily stand-ups.

Apr 2022 – Dec 2022 · 8 mos · Hybrid

• Developed and maintained a secure and scalable IVR system using Java, Spring Boot, and Microservices. • Implemented security measures, including token-based authentication and data encryption, which significantly enhanced system security.

Jul 2021 – Mar 2022 · 8 mos · India · Hybrid

• Gained hands-on experience with Java, JDBC, and MySQL for data management operations.
• Debugged and resolved software defects in production applications, leading to improved system stability.
• Wrote and maintained SQL scripts for database migrations and data cleanup tasks. • Participated in daily scrum meetings to discuss project progress and troubleshoot technical challenges.
• Collaborated effectively with senior developers to understand project requirements, and deliver functional code.
• Developed foundational skills in Test-Driven Development (TDD) by writing tests for new features before implementation.