Summary
Overview
Work History
Education
Skills
Certification
Projects
Timeline
Generic

PREM SAI SAMBA

Summary

Experienced Java Full Stack Developer with over 5 years of expertise in designing and building scalable microservices, optimizing high-performance databases, and developing secure, enterprise-grade web applications using Java, Spring Boot, React.js, and Angular. Demonstrates a strong track record of reducing deployment times, improving UI/UX, and managing large-scale distributed systems supporting global operations and high-traffic platforms. Proficient in DevOps practices, cloud infrastructure (AWS, Azure), and Agile/Scrum methodologies, with a focus on continuous improvement, secure development, and cross-functional collaboration.

Overview

6
6
years of professional experience
1
1
Certification

Work History

Software Engineer

JPMorgan Chase
Texas
05.2024 - Current
  • Developed high-performance backend microservices using Java 17, Spring Boot, Spring Cloud, and Spring Security, powering secure and scalable financial platforms.
  • Built REST and GraphQL APIs with Spring MVC, Swagger/OpenAPI, and OAuth 2.0/JWT, enabling real-time data exchange and ensuring PCI-DSS compliance.
  • Modularized common backend utilities (logging, error handling, security filters), improving service maintainability and developer onboarding.
  • Designed event-driven backend flows with Apache Kafka and Redis, improving response time for customer transactions by over 40%.
  • Tuned complex queries and indexing strategies across PostgreSQL, Redis, and MongoDB, enhancing backend data processing throughput.
  • Led deployment automation using Terraform, Docker, Jenkins, and AWS ECS, reducing backend deployment time by 30%.
  • Instrumented backend services with Prometheus, Grafana, and the ELK Stack, reducing incident MTTR by 25%.
  • Emphasized TDD/BDD using JUnit, Mockito, and integration tests, improving code quality and reducing bugs by 35%.
  • Collaborated with architects on scalable API design and microservices interaction patterns across the enterprise platform.

Software Engineer

Cognizant
Hyderabad
06.2021 - 07.2023
  • Built and maintained full stack applications for claims processing and provider portals using Spring Boot, React.js, and Redux Toolkit and Delivered internal knowledge sessions on secure API development and full-stack performance tuning.
  • Engineered secure FHIR-compliant APIs and event-driven microservices with Kafka, enabling real-time patient and claims data exchange across healthcare partners.
  • Developed HIPAA-compliant workflows with OAuth 2.0, JWT, and RBAC, ensuring strict data privacy and compliance.
  • Migrated legacy monolith features microservices deployed on AWS ECS, improving system scalability and reducing operational costs by 25%.
  • Improved frontend user experience and accessibility for providers using Material UI and React.js, increasing engagement by 45%.
  • Optimized backend performance via advanced query tuning in PostgreSQL, MongoDB, and Redis, decreasing latency by 30%.
  • Raised backend test coverage above 85% through unit and integration tests using JUnit, Mockito, and Postman.
  • Enhanced observability with OpenTelemetry, Grafana, and Prometheus, reducing downtime and debugging effort during production incidents.
  • Collaborated with QA, DevOps, and business analysts in Agile teams to deliver high-quality releases and scalable healthcare features.

Software Engineer

HCL Technologies
Hyderabad
08.2019 - 06.2021
  • Built and enhanced web applications for patient engagement and claims management portals using Java, Spring Boot, React.js, and Kafka, supporting high-volume seasonal enrollment periods and personalized healthcare workflows.
  • Developed interactive, real-time patient recommendation widgets using React.js, GraphQL, and Redux, improving care plan engagement rates by 20% across mobile and desktop interfaces.
  • Implemented Redis-based session caching and WebSocket pub/sub for live eligibility updates and appointment tracking, reducing patient wait time issues and form abandonment rates by 25%.
  • Migrated monolithic modules to microservices architecture on AWS ECS using Docker and Terraform, improving system availability, compliance readiness, and deployment velocity.
  • Engineered secure patient login and claims submission flows with OAuth 2.0, JWT, and API rate-limiting, ensuring adherence to HIPAA and security best practices.
  • Collaborated with UI/UX teams to deliver WCAG-compliant, responsive portals using Material UI, TypeScript, and healthcare focused design systems.
  • Automated unit, integration, and E2E testing using JUnit, Mockito, Postman, and Cypress, increasing test coverage by 50% and reducing post-release defects.
  • Monitored distributed microservices using Prometheus and Grafana, improving production incident detection time by 40% and enabling faster RCA (Root Cause Analysis).
  • Participated in Agile sprints and backlog grooming sessions, contributing to timely delivery of major features for patient dashboards, claims tracking, and provider search modules.

Education

M.S. - Computer Science and Engineering

Campbellsville University
Campbellsville, KY
05.2025

B.Tech. - Mechanical Engineering

Jain University
India
07.2019

Skills

  • Reactjs
  • Angular
  • Redux Toolkit
  • JavaScript
  • TypeScript
  • HTML5
  • CSS3
  • Bootstrap
  • Material UI
  • Java
  • Spring Boot
  • Spring MVC
  • Spring Cloud
  • JPA
  • Hibernate
  • Nodejs
  • REST APIs
  • GraphQL
  • Swagger/OpenAPI
  • AWS (EC2, S3, Lambda, RDS, ECS Fargate)
  • Azure
  • GCP
  • Docker
  • Kubernetes
  • Jenkins
  • Terraform
  • GitHub/GitLab
  • PostgreSQL
  • MySQL
  • Oracle
  • MongoDB
  • Redis
  • NoSQL
  • Flyway
  • OAuth 20
  • JWT
  • HIPAA
  • HITECH
  • PCI-DSS
  • RBAC
  • JUnit
  • Mockito
  • Selenium
  • Postman
  • Prometheus
  • Grafana
  • ELK Stack
  • OpenTelemetry
  • Microservices
  • Event-Driven Architecture
  • Apache Kafka
  • Kong API Gateway
  • CI/CD
  • Agile/Scrum
  • Cross-Functional Teamwork
  • Mentorship
  • Communication
  • Problem Solving
  • Agile Collaboration

Certification

  • AWS Associate Developer
  • Introduction to Front-End Development
  • AI for Everyone
  • Cyber Security Basics

Projects

Automatic Attendance Management System using Face Detection, Campbellsville, KY, Built an AI-driven attendance system using Python, OpenCV, TensorFlow, and other ML tools for real-time face recognition. Connected ML model to a web interface via Flask and React for live attendance tracking. Optimized a Siamese Neural Network to deliver 91% model accuracy across 200+ training epochs. Employed techniques like data augmentation and contrastive loss to improve model robustness. Delivered a complete solution minimizing manual effort in attendance processing.

Timeline

Software Engineer

JPMorgan Chase
05.2024 - Current

Software Engineer

Cognizant
06.2021 - 07.2023

Software Engineer

HCL Technologies
08.2019 - 06.2021

M.S. - Computer Science and Engineering

Campbellsville University

B.Tech. - Mechanical Engineering

Jain University

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