Harsha Vardhan Reddy Pesala

Software Developer

Bangalore

Summary

Backend Java Developer with over 4 years of experience in designing and developing scalable backend applications using Java 17, Spring Boot, and microservices architectures, and AWD cloud services. Strong proficiency in building RESTful APIs, implementing Redis caching, and working with relational databases. Experienced in application performance optimization, security best practices, and cloud-ready backend development. Proven ability to work effectively in Agile/Scrum environments and collaborate with cross-functional teams to deliver high-quality backend solutions.

Overview

years of professional experience

Work History

Developer

GST IT Services Pvt Ltd

02.2024 - 12.2025

Designed and developed Spring Boot 3.x microservices for the Intelligent Data Assistant (IDA) product.
Implemented Redis caching, reducing DB calls by 40%, and improving API response time by 30%.
Integrated external SAP systems using Spring Web Client and OData APIs.
Developed end-to-end backend workflows for data ingestion, mapping, transformation, validation, and approval.
Built a dynamic ERP source management system with version-controlled metadata support.
Enhanced transformation logic with data validation rules, such as formatting, lookups, concatenation, and splitting.
Designed and implemented asynchronous email notification using Apache Kafka for file upload and processing workflows.
Designed and implemented JWT-based security using Spring Security, enabling secure access to RESTful APIs, and enforcing role-based authorization.
Used AWS S3 for uploading and downloading the files, and have good knowledge of AWS services.
Collaborated with QA, DevOps, and business stakeholders to translate business requirements into technical solutions and deliver robust, production-ready features.
Contributed to onboarding and mentoring new team members.

Associate Consultant

Atos | Syntel Pvt Ltd

09.2021 - 12.2023

Migrated 15+ legacy COBOL modules to Java-based microservices, reducing processing time by 30%.
Designed and implemented batch processing jobs using Spring Batch.
Analyzed complex mainframe (COBOL) workflows and re-engineered them into Java applications.
Developed and executed JUnit test cases, ensuring high code quality and coverage.

Education

Master of Computer Applications (MCA) - Computer Science

JNTUA University, Sri Sai College of IT & Management

Kadapa

09-2020

Skills

Languages: Java

Frameworks: Spring Core, Spring MVC, Spring Boot (3x), Spring Data JPA, Spring Batch, Hibernate

Architecture: Monolithic, Microservices, RESTful APIs

Integration: Spring Web Client, SAP JCO, OData APIs

Databases: PostgreSQL, MySQL, MongoDB

Timeline