Basistha Kumar | Backend Engineer

About

I'm a backend software engineer based in Jamshedpur, Jharkhand, specializing in distributed systems built with Java and Spring Boot. I graduated with a B.Tech in Computer Science and Engineering from VIT in 2025 and currently work remotely at Firstsource Solutions Ltd as an RPA Associate, engineering backend automation workflows and API-driven data pipelines across enterprise systems.

I'm dual AWS certified (Cloud Practitioner, Dec 2023; Solutions Architect Associate, Jan 2024), with hands-on experience designing production-quality distributed backend systems, including a real-time collaborative document editor built with WebSockets, STOMP, and CRDT-based conflict resolution.

My focus is on clean RESTful API design, microservices architecture, and systems that hold up under real-world concurrency and scale. I care about correctness first, then performance.

Projects

TaskFlow

GitHub ↗

Collaborative Document Editor & Project Management Backend

Java Spring Boot Spring Security WebSockets STOMP CRDT / YATA PostgreSQL Docker

▸ Built WebSocket/STOMP real-time collaboration layer enabling low-latency document sync across concurrent users.
▸ Implemented CRDT-based conflict resolution using the YATA algorithm with deterministic ordering (counter @ clientId), ensuring all clients converge to identical document state regardless of operation order.
▸ Architected JWT authentication and role-based access control with Spring Security for multi-user document permissions.
▸ Designed PostgreSQL persistence via Spring Data JPA with JSON-serialized CRDT state; containerized full stack with Docker Compose.

SpeedStream

GitHub ↗

Real-time Formula 1 Race Data Platform

Java Spring Boot PostgreSQL REST APIs

▸ Built a real-time data pipeline to ingest high-frequency telemetry (weather, tyre degradation, safety car scenarios) and persist results in PostgreSQL for downstream analytics.
▸ Designed a stateless REST architecture with PostgreSQL connection pooling enabling horizontal scaling under concurrent simulation load.
▸ Integrated external race strategy prediction service via RESTful APIs, handling structured JSON payloads with full input validation.
▸ Owned all backend API integration, data pipeline design, and database schema end-to-end.

Experience

Firstsource Solutions Ltd.

RPA Associate

July 2025 – Present

Remote

▸ Engineered backend automation workflows to manage end-to-end device inventory operations across enterprise systems, reducing manual processing time by ~40%.
▸ Built and integrated API-driven data pipelines to process account numbers, device serial numbers, and equipment metadata, enabling real-time dynamic data handling across distributed systems.
▸ Designed robust error-handling and validation logic for edge cases including missing inputs, failed system queries, and inconsistent records, improving reliability of unattended automation processes.

TATA Steel Ltd.

Intern, Networking & Systems

Aug 2023 – Sep 2023

▸ Designed a fault-tolerant network architecture with load balancing capabilities, enabling reliable communication for 500+ concurrent users across enterprise applications.
▸ Evaluated existing network topology and proposed load balancing improvements that increased system resilience across internal plant services.