📞 +91-7007749979 • 📧 [email protected]

Backend Java Developer with experience building scalable, high-performance backend systems using Java, Spring Boot, Microservices, Hibernate/JPA, MySQL, and REST APIs.

Currently working at Flipkart in the MAPI (Mobile API) team, contributing to API gateway orchestration, distributed microservices, and backend systems powering the Travel section through integrations with platforms like Cleartrip and Ixigo.

Experienced in backend performance optimization, microservices communication, production monitoring, and clean architecture design with a strong foundation in DSA, OOPS, Multithreading, and Backend System Design.

Java (8+) • SQL

Spring Boot • REST APIs • Hibernate • JPA • Spring Security • Apache Kafka

Microservices • MVC • Layered Architecture • Clean Architecture

JWT Authentication • Role-Based Access Control (RBAC)

MySQL • Redis

Kubernetes • Git • GitHub • BitBucket • Maven • Postman • IntelliJ IDEA • Jira

OOPS • DSA • Multithreading • System Design Basics • Unit Testing

• Working in the MAPI (Mobile API) team, contributing to Flipkart’s API gateway ecosystem handling millions of daily requests.
• Developing backend systems powering the Travel section of the Flipkart app through integrations with Cleartrip and Ixigo.
• Working on Asgard, a backend orchestration service responsible for aggregating responses from multiple downstream microservices.
• Contributed to migration of services from Rome to Asgard, improving scalability and maintainability.
• Integrated and optimized external REST APIs with request orchestration, response transformation, validation, and fault-tolerant communication.
• Contributed to Search & Browse migration, observability improvements through Cosmos dashboards, and pod-level performance tuning.
• Developed scalable backend APIs and reusable service components following clean coding and SOLID principles.

• Contributed to a greenfield enterprise healthcare application for Blue Shield of California using Spring Boot microservices.
• Designed and delivered 25+ RESTful APIs supporting Audit, Contact Management, Role Types, and Eligibility workflows.
• Optimized SQL queries and indexing strategies on datasets exceeding 100K+ records, improving API response time by 30%.
• Implemented JWT-based authentication and role-based authorization using Spring Security.
• Participated in Agile sprint deliveries, code reviews, debugging, API documentation, and unit testing.

Tech: Java, Spring Boot, Spring Security, JPA/Hibernate, MySQL

• Designed and developed backend microservices handling order creation, lifecycle tracking, and cancellations.
• Implemented REST APIs with JWT-based authentication and role-based access control.
• Managed order lifecycle states using enum-driven business logic and structured service layers.
• Optimized MySQL queries and indexing strategies, improving performance by approximately 35%.
• Applied global exception handling, validation mechanisms, and pagination for production-ready APIs.

• Scalable Backend Systems
• Distributed Microservices
• API Gateway & Orchestration
• Performance Engineering
• Backend System Design
• Product-Based Company Engineering

🎓 Bachelor of Technology in Information Technology Dr. A.P.J. Abdul Kalam Technical University (AKTU), Lucknow CGPA: 8.41/10

📧 Email: mailto:[email protected] 🔗 LinkedIn: https://www.linkedin.com/in/navneetsingh25/ 💻 GitHub: https://github.com/Navi2510 🌐 Portfolio: https://navi2510.github.io/NavneetPortfolio/

⭐ Open to collaborating on backend engineering, distributed systems, and microservices-based projects.