I'm Jatin Kumar.
Building the Future.
Results-driven engineer with 3.5+ years of experience delivering high-quality enterprise solutions. Expert in leveraging Java, Rust, React, Angular, SQL, and GraphQL. for scalable architectures, with a proven track record of reducing latency and performance optimization
System Architecture & Skills
Frontend Ecosystem
Backend & Core
Data & Cloud
Tools & Testing
Career Logs
HCL Software
Developing core platform components using React.js, Rust, and GraphQL. Designed efficient GraphQL APIs to reduce payload overhead. Optimized PostgreSQL queries and indexing for reliability. Maintained components across React, Rust, and Java modules.
Genpact
Deployed high-performance web apps using Angular (v10–18) and React (v16–18). Built 80+ RESTful services in Java Spring Boot & Python. Improved performance by 25% via lazy loading and AOT compilation. Reduced sprint backlog by 25% through proactive debugging.
Wipro Limited
Developed full-stack apps using .NET, C#, and Angular. Achieved 90%+ unit test coverage across 200+ components. Improved frontend performance by 40% by optimizing routing and modularizing components. Mentored juniors on TDD and Git workflows.
Selected Works
Order Management System
Modular system enabling order creation, tracking, and workflow management. Built responsive UI components and optimized backend queries for high-speed processing.
DMS (Robin)
Document Management System modules with global state in Redux. Contributed to shared Angular component library and integrated 30+ REST APIs.
Photobook
Real-time editing UI for Photobook applications. Optimized large image rendering modules and achieved high test coverage.