Software Engineer / Java Backend Developer

Atanu Das

I build secure, scalable backend systems with Spring Boot, PostgreSQL, microservices, Docker, AWS, and CI/CD.

About

Backend engineer focused on clarity, performance, and reliable delivery.

I work on production backend systems where clean APIs, secure access, data consistency, and deployment discipline matter. My experience includes Spring Boot REST APIs, microservices, PostgreSQL optimization, JWT/OAuth2 authentication, Docker, AWS, Jenkins, and GitHub Actions.

30% report generation improvement through query optimization
2024 started professional engineering work at GlobalLogic
1 Spot Award for Best Team Performer

Experience

Professional Work

Current role at GlobalLogic, Bangalore as Software Engineer from August 2024 to present.

GlobalLogic
Global P&L analytics project screenshot

Work Project

Global P&L Analytics Platform

Developed Spring Boot APIs for a financial reporting platform that replaced Excel-based reporting workflows.

  • Built services over large financial datasets and a custom hierarchical data layer.
  • Optimized PostgreSQL queries to improve report generation by about 30%.
  • Used JWT/OAuth2, Docker, AWS, Jenkins, and GitHub Actions for secure delivery.
Hitachi Domain
Global ERP application project screenshot

Work Project

Global ERP Application

Engineered backend modules for a manufacturing ERP system covering production, supply chain, and finance workflows.

  • Built Spring Boot microservices and delivered Kanban-related backend modules.
  • Handled validation logic, requirements analysis, and release readiness.
  • Supported integration testing and critical defect resolution for production stability.

Projects

Selected Self Projects

Concise project highlights with repository links for direct code review.

Distributed assessment platform screenshot

Microservices

Distributed Assessment Platform

Spring Boot microservices platform for quiz creation, question ingestion, scoring, and secured request flows.

Spring Boot OpenFeign PostgreSQL
View repository
Flight booking system screenshot

Backend System

SkyRoute Flight Booking System

Flight booking backend with flight management, search, filtering, pagination, and seat inventory design.

Java Spring Boot MySQL
View repository

Model Experiment

Self Driving Car Model

Autonomous driving exploration focused on model behavior, control logic, and implementation experiments.

AI/ML Control Logic Simulation
View repository

Skills

Stack I use to ship backend systems.

Languages

Java, SQL

Backend

Spring Boot, Spring Security, REST APIs, Microservices, JPA, Hibernate

Database & Cloud

PostgreSQL, Docker, AWS EC2, AWS S3, Jenkins, GitHub Actions

Tools

JUnit, Git, Maven, JWT, OAuth2, CI/CD