Java Backend Developer with 3.9 years of progressive, cross-domain experience delivering production-grade microservices, RESTful APIs, and event-driven backend systems using Java 8/17/21, Spring Boot, Hibernate/JPA, MySQL, Redis, and Apache Kafka. Successfully delivered enterprise-grade e-commerce and hotel booking platforms handling high-volume transactional workloads. Proficient in AWS (EC2, S3, RDS), Docker, and Jenkins CI/CD. Additionally brings hands-on Blockchain experience with distributed ledger technologies and smart contract development. Known for clean architecture, SOLID design principles, 85%+ unit test coverage, and consistent Agile delivery. Actively targeting Java Backend Developer roles at product companies, service firms, and growth-stage startups.
TapQwik Software Private Limited
Bengaluru
Architected and delivered scalable microservice-based backend systems using Java 8+, Spring Boot, Hibernate, and MySQL — sustaining high-volume transactional loads across e-commerce and hotel booking platforms, improving system scalability by ~30%. Designed and maintained production RESTful APIs with versioning, error contracts, pagination, and full Swagger/OpenAPI documentation for seamless frontend and third-party integration. Reduced API response times through Redis caching, JPA query optimization, smart pagination, and lean payload design across critical high-traffic endpoints. Implemented Apache Kafka event-driven pipelines for async inter-service communication — improving system decoupling, fault tolerance, and real-time notification delivery. Deployed containerized applications on AWS EC2 and S3 using Docker + Jenkins CI/CD pipelines — reducing deployment time by ~25% and eliminating manual release effort. Achieved 85%+ unit test coverage with JUnit 5 and Mockito; enforced SonarQube quality gates — zero critical production defects across all releases. Applied SOLID principles and GoF design patterns (Singleton, Factory, Builder, Observer) to deliver extensible, maintainable, and reusable backend components. Optimized API performance end-to-end via structured logging (Log4j/Logback), Redis caching, and SQL query profiling — achieving consistent latency improvements across all critical services. Led UAT and production release coordination with QA and DevOps teams; maintained full Swagger API documentation enabling rapid developer onboarding. Collaborated in Agile/Scrum ceremonies — sprint planning, stand-ups, retrospectives — delivering 100% sprint commitments consistently using JIRA and Confluence.
Rapid Innovation
India
Contributed to Blockchain-based backend solutions involving distributed ledger concepts, smart contract fundamentals, and decentralized application architecture. Assisted in developing and testing smart contract logic for transaction validation and data integrity on blockchain networks. Collaborated with cross-functional teams (Product, QA, DevOps) in Agile/Scrum ceremonies — consistently delivering 100% sprint commitments across all quarters.
B.Tech
Stack: Java 8+, Spring Boot, Hibernate, MySQL, Redis, Kafka, AWS EC2/S3, Docker, JUnit 5, Swagger/OpenAPI Architected end-to-end e-commerce backend for Philips Electronics covering product catalogue, inventory management, cart, order processing, and secure payment integration using Java, Spring Boot, and Hibernate. Designed high-performance REST APIs for catalog management, pricing rules, promotional offers, and user sessions — integrated with frontend and third-party payment gateways. Integrated Apache Kafka for async processing of order confirmations, inventory updates, and real-time notifications between microservices — improving system resilience. Boosted system throughput via Redis caching and SQL query optimization — reducing DB load and delivering faster end-user experience across high-traffic endpoints. Enforced input validation, exception handling, and security controls — zero critical security incidents post-launch; delivered full Swagger/OpenAPI documentation. Achieved 85%+ test coverage through JUnit 5 and Mockito test suites; deployed on AWS EC2 with Jenkins CI/CD — zero critical rollbacks across all production releases.
Stack: Java 8+, Spring Boot, Hibernate, MySQL, Redis, Kafka, AWS, Docker, SonarQube, Log4j/Logback Built high-concurrency hotel booking backend supporting real-time room availability, dynamic pricing, booking lifecycle, cancellations, and customer management at scale. Designed date-aware RESTful APIs for availability search, booking workflows, and payment integrations — seamless frontend and third-party service connectivity. Modelled optimized JPA/Hibernate relational mappings across hotels, rooms, bookings, and customers — ensuring ACID-compliant transactional accuracy under concurrent user load. Integrated Apache Kafka for async processing of booking events, ticket confirmations, and push notifications — decoupling services and improving fault tolerance. Cut query latency via Redis caching, efficient serialization, and smart pagination — achieving sub-200ms response times for room availability APIs. Validated 100% of critical booking flows with JUnit & Mockito tests; enforced SonarQube quality gates — zero critical findings across all production releases.