Himanshu Shahu

About Himanshu Shahu

I’m Himanshu Shahu, a passionate Java Developer specializing in designing and developing scalable, secure, and high-performance backend systems. I have strong expertise in building RESTful APIs and microservices using Spring Boot, adhering to the MVC architecture, and utilizing Spring Data JPA for efficient ORM and database interactions. My experience includes implementing Spring Security 6 with JWT and OAuth2 for authentication and authorization, and integrating Redis caching to improve system performance and response time.I focus on writing clean, maintainable, and production-ready code, following best practices in software design and backend optimization. I have also solved 600+ DSA problems, demonstrating excellent problem-solving and algorithmic thinking skills.Previously, I worked as a Data Engineer, where I built and managed cloud-based ETL pipelines using AWS Glue, S3, Athena, Lambda, and DynamoDB, along with PySpark for large-scale data transformation and processing.I’m continuously expanding my knowledge in Spring Boot, Microservices, and Cloud technologies to deliver high-quality, production-ready enterprise applications.

Experience

1. System Engineer

   Tata Consultancy Services

   Feb 2025 — Present · Pune, IN

   Currently working as a Java Developer, where I design and develop scalable, secure, and high-performance backend systems. I’ve built multiple RESTful endpoints and microservices using Spring Boot, following MVC architecture and leveraging Spring Data JPA for efficient database operations. I work extensively with Spring Security 6 (JWT, OAuth2) for authentication and authorization, and implement Redis caching to optimize performance. I use DB2 and PostgreSQL as databases, with Maven as the build automation tool. For API testing and validation, I rely on Postman and Bruno, ensuring smooth integration and reliability of services. I emphasize writing clean, modular, and production-ready code aligned with enterprise standards.Previously worked as a Data Engineer, where I built and managed cloud-based ETL pipelines using AWS Glue, S3, Athena, DynamoDB, and Lambda. I developed ETL workflows with PySpark, optimized batch processing using ECS, and integrated data from multiple data lakes to enable robust data-driven insights and analytics.

Education

• Shri Ramdeobaba College of Engineering and Management

  Bachelor of Technology - BTech, Information Technology

  2020 — 2024