Open to opportunities

Rishav User

@rishavuser1

Message

Java backend developer building scalable Spring Boot REST APIs and AI-ready services.

India

Message

What I'm looking for

I’m looking for a Java backend role where I can build and scale REST APIs with Spring Boot, use caching and JWT securely, and contribute to real-world projects—including AI/document integrations—while growing through mentorship and strong engineering practices.

I’m a Java backend developer focused on building reliable Spring Boot REST APIs, with hands-on experience integrating authentication, caching, and scalable service design. I’ve worked with MySQL, MongoDB, and Redis, and I’m comfortable using Docker, JWT-based authentication, and system-design fundamentals to turn APIs into dependable products.

In my projects, I’ve implemented features like distributed unique ID generation (with Redis write-through caching and rate limiting), role-based access control with JWT (replacing session-based auth for scalability), and a RAG-based document Q&A system using local LLMs. I also care about engineering quality and learning quickly—whether that’s improving retrieval accuracy with chunking and multi-query retrieval or delivering full-stack experiences through React integration.

Experience

Work history, roles, and key accomplishments

AI Document Q&A System

GitHub

Apr 2026 - May 2026 (1 month)

Developed a RAG-based document Q&A system that processes PDFs and answers natural-language queries using a local LLM via Ollama. Implemented embeddings and semantic search using ChromaDB, improving retrieval via chunking and multi-query retrieval, with a Streamlit interface.

Ollama RAG ChromaDB Embeddings Semantic Search Streamlit

TrackIt Inventory System

GitHub

Jan 2026 - Apr 2026 (3 months)

Built a stateless inventory management backend with Spring Boot using Spring Security and JWT-based authentication. Implemented RBAC, CRUD with Spring Data JPA and MySQL, transaction ledger endpoints, and integrated Cloudinary image uploads with a React frontend via Axios.

Spring Boot Spring Security JWT Hibernate MySQL React Axios Role Based Access Control (RBAC)CRUD Server Side Search Filtering Cloudinary

ZipLink URL Shortener

GitHub

Dec 2025 - Mar 2026 (3 months)

Implemented a distributed URL shortener with custom collision-free Base62 short-code generation across multiple service instances. Built Spring Boot REST APIs with Redis caching, Redis-backed rate limiting, and Nginx reverse proxy configuration for horizontal scaling.

Java Spring Boot REST APIs MongoDB Redis Nginx Docker Docker Compose Base62 URL Expiration Password Protected Redirects Rate Limits Reverse Proxy Caching

Education

Degrees, certifications, and relevant coursework

National Institute of Technology (NIT) Jamshedpur

Master of Computer Applications (MCA), Computer Applications

2023 - 2026

Grade: CGPA 8.20

Pursuing a Master of Computer Applications (MCA) at NIT Jamshedpur, achieving a CGPA of 8.20. Studied fundamentals and built Java backend and REST API applications using Spring Boot.

L.N. Mishra College

Bachelor of Computer Applications (BCA), Computer Applications

2019 - 2022

Grade: CGPA 7.94

Completed a Bachelor of Computer Applications (BCA) at L.N. Mishra College with a CGPA of 7.94. Built a foundation in computer science and core programming concepts.