Jai Sai Ram Challapalli.
Backend systems for HR & payroll

Junior Software Developer building Spring Boot microservices, Kafka event pipelines, and Angular interfaces behind HRMS and ERP platforms serving 2,000+ employees.

JavaSpring BootMicroservicesAngularApache KafkaREST APIsMySQLOracle SQLAgile / SDLC JavaSpring BootMicroservicesAngularApache KafkaREST APIsMySQLOracle SQLAgile / SDLC
System topology — a typical HRMS deployment
HRMS Angular UI Payroll Angular UI Spring Boot REST + Kafka MySQL app data Oracle SQL reporting 99% uptime
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01Summary

3+ years developing enterprise applications in Java, Spring Boot, Microservices, Angular, REST APIs, Kafka, MySQL, and Oracle SQL. Focused on HRMS, Payroll, and ERP systems that keep large employee bases running — from API architecture and queue-based integration down to query performance and production stability.

0
YEARS EXPERIENCE
0
USERS SUPPORTED
0
QUERY TIME REDUCED
0
APP AVAILABILITY
02Experience
Junior Software DeveloperIntegrated Information Solutions LLP
NOV 2024 – MAY 2026 · transferred from Protocol India Pvt. Ltd.
  • Engineered HRMS and Payroll modules supporting 2,000+ employees.
  • Architected scalable RESTful APIs using Spring Boot microservices.
  • Integrated Apache Kafka for asynchronous communication between services.
  • Built responsive Angular interfaces to improve day-to-day user experience.
  • Tuned Oracle SQL and MySQL queries, cutting execution time by 25%.
  • Resolved production issues while holding 99% application availability.
  • Worked cross-functionally through full Agile SDLC cycles.
JavaSpring BootMicroservices AngularKafkaREST APIs MySQLOracle SQL
Junior Software DeveloperProtocol India Pvt. Ltd.
APR 2023 – OCT 2024
  • Delivered ERP modules covering HRMS, Payroll, Sales, Purchase, and Accounts.
  • Built backend services using PHP Laravel.
  • Created database-driven workflows to improve operational efficiency.
  • Implemented role-based authentication and authorization.
  • Collaborated through requirements analysis, development, testing, and deployment.
PHPLaravelMySQL JavaSpring Boot
03Projects
Bizionix ERP bizionix.com ↗

Enterprise resource planning system with HRMS, payroll, finance, and reporting workflows, backed by Spring Boot REST APIs and Kafka-driven async processing.

Java · Spring Boot · Angular · Kafka · MySQL · Oracle SQL
Apple HRMS applehrms.com ↗

HRMS and payroll workflow platform automating employee lifecycle and attendance, with Spring Boot APIs tuned for payroll processing performance.

Java · Spring Boot · MySQL
MyERP.PRO myerp.pro ↗

ERP covering Sales, Purchase, Inventory, and HRMS, with automated approval workflows on a relational schema built for performance.

PHP Laravel · MySQL
Kshatriya Seva Samithi .org ↗

Direct-client organization portal with Membership, Matrimony, Jobs, Donation, and Event Management, delivered end-to-end with stakeholders.

REST APIs · Laravel · MySQL · JS · Bootstrap
Mana Coding — personal project manacoding.com ↗

A full-stack developer learning platform with 50,000+ educational resources spanning interview prep, coding tutorials, and web services — including hosting, DNS, and production deployment, owned solo end to end.

PHP · MySQL · HTML5 · CSS3 · JavaScript · Bootstrap · Git
04Skills
Languages
JavaSQL JavaScriptPHP
Backend
Spring BootMicroservices REST APIsSpring MVC KafkaLaravel
Frontend
AngularHTML5 CSS3Bootstrap 5
Databases
MySQLOracle SQL
Tools
GitGitHub BitbucketMaven Postman
Concepts
OOPSDLC AgileDesign Patterns System Design
05Education
B.Tech — Mechanical Engineering
Chaitanya Engineering College
2021
CGPA 7.26
Diploma — Mechanical Engineering
Chaitanya Engineering College
2018
65.39%
SSC
The Presidential School
CGPA 7.7