---
title: "Upendra S - System Engineer in Bengaluru | Tal"
description: "Meet Upendra S, Java Developer | Spring Boot expert based in Bengaluru. AI stack includes gemini, github copilot, and ChatGPT."
image: "https://tal.club/meet/upendra-s/share-image"
---

# Upendra S on Tal

## Headline

Java Developer \| Spring Boot expert

## About

Java Developer \| Backend Maestro 🚀 \| Crafting Spring Boot Magic ✨ \| Expertise in Java, Spring Security, and PostgreSQL\. Transforming ideas into scalable, efficient backend services\. Let's connect and explore the realms of seamless and secure software solutions\!

## Location

Bengaluru

## AI stack

gemini

github copilot

ChatGPT

Microsoft Copilot

## Work experience

System Engineer at Tata Consultancy Services, Mar 2025 \- Present · 1 y 7 mo, Bengaluru, Roles & Responsibilities: Developed REST APIs using Java and Quarkus for payment file import processing\. Implemented Google Pub/Sub publisher and subscriber integrations for event\-driven workflows\. Integrated Google Cloud Spanner across microservices and designed da schemas\. Created DDL scripts for Google Cloud Spanner and PostgreSQL databases\. Developed Low\-Level Design \(LLD\) documents, sequence diagrams, and class diagrams\. Refactored application structure and improved service maintainability\. Collaborated with architects, analysts, QA, and development teams in Agile nvironment Currently working on validation services and Quarkus integration with Cloud \(PostareSQL\)\. Environment: Java ment: Java, Quarkus, REST APIs, Google Cloud Platform \(GCP\), \(GCP\)\. Cloud Spanner, PostgreSQL, Google Pub/Sub, Maven, Git, JUnit, SonarQube, Microservices, Agile scrum\.

Java Developer at ZKTeco India, Sep 2021 \- Mar 2025 · 3 y 6 mo, Bengaluru, Karnataka, India, Roles & Responsibilities: Developed RESTful APIs using Java, Spring Boot, Hibernate, and JPA\. Implemented authentication and authorization using Spring Security and JWT\. Designed and optimized PostgreSQL databases and repository layers\. Integrated AWS S3, AWS SQS, Azure AD, SMS, and Email services Developed unit test cases using JUnit and improved code quality through SonarQube\. Created Swagger API documentation and provided production support\. Collaborated with cross\-functional teams in Agile/Scrum environments\. Modules Worked On: Authorization Service, Organization Service, Location Service, Credential Management Service, Storage Service, Notification Service, Customer Support service Environment: Java, Spring Boot, Spring Security, Hibernate, JPA, PostgreSQL, JWT, AWS S3, AWS SQS, Azure AD, Gradle, GitLab, JUnit, SonarQube, Swagger, REST APIS\.

## Education

Bachelor of Engineering \- BE, Computer science and engineering, The oxford college of engineering

2nd puc, Computer Science, Narayana pu college

[View the original profile](https://tal.club/meet/upendra-s)

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