Shivam Kumar

SK

Open to opportunities

Shivam Kumar

@shivamjha1

I’m a Java backend developer focused on building fast, reliable REST APIs with Spring Boot and strong database performance.

What I'm looking for

I’m looking for a backend role where I can build REST APIs in Java/Spring Boot, improve latency and database performance, and work with a team that values clean code, ownership, and measurable impact.

I build backend services with Java and Spring Boot, delivering REST APIs that are designed for performance, clean architecture, and maintainability. In my recent Java Developer Intern role at PW Skills, I reduced application latency by 40% by developing and refining REST APIs.

I also strengthened backend efficiency by optimizing logic with Collections and Streams, improving processing speed by 35%. With Hibernate and MySQL, I improved database performance by reducing query time from 2 seconds to 100 ms, making the system more responsive.

Across my projects, I focus on practical integration and scalable design. I built a Journal App with Spring Boot and REST API fundamentals (CRUD) using MongoDB for faster, flexible retrieval, and I developed a Smart Email Assistant integrating the OpenAI Chat API for context-aware reply suggestions.

My professional ethos centers on writing readable OOP-based code, using proper exception handling, and validating core workflows end-to-end. I’m continuing to grow through ongoing responsibility as a Campus Ambassador and through my current B.Tech in Computer Science.

Experience

Work history, roles, and key accomplishments

PS

Java Developer Intern

PW Skills

Jul 2025 - Oct 2025 (3 months)

Developed REST APIs with Java and Spring Boot, reducing application latency by 40% and improving processing speed by 35%. Optimized Hibernate + MySQL queries (2s to 100ms) and applied OOP principles with exception handling to improve readability and maintainability.

Java 8 Spring Boot REST APIs Hibernate MySQL SQL Query Optimization Collections And Streams

Education

Degrees, certifications, and relevant coursework

SM

St. Andrews Institute of Technology and Management

Bachelor of Technology (B.Tech), Computer Science

2022 -

Grade: 80%

Activities and societies: Campus Ambassador – PW Skills (Jan 2024–Present); Certifications: Java for Beginners and Java Spring Boot for Beginners (Amigoscode, Jul 2025).

B.Tech in Computer Science with a current percentage of 80% (Sep 2022–June 2026).

SM

St. Andrews Institute of Technology and Management

Bachelor of Technology, Computer Science

2022 -

Grade: 80%

Pursuing a Bachelor of Technology in Computer Science, with a current percentage of 80%.

Tech stack

Software and tools used professionally

Postman

GitHub

GitLab

Spring Data

MySQL

PostgreSQL

MongoDB

Gmail

Spring Boot

Spring MVC

Java 8

JavaScript

Java

Ubuntu

Spring Security

SQL

100ms

Jan

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