Roshan Kakarla

Software Engineer — Backend • Full-Stack • Cloud

Software Engineer with 3+ years developing scalable backend APIs, microservices, and full-stack apps using Java, Python, React, Node.js, Spring Boot, FastAPI, PostgreSQL, AWS.

United States

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Quick Snapshot
  • 3+ years experience in backend & cloud engineering.
  • Java, Python, React, Spring Boot, AWS.
  • REST APIs · Microservices · CI/CD.

Experience

TechCorp

Oct 2025 – Present

Software Developer

Full-Stack Business Systems & Microservices Platform

  • Developed features using Spring Boot, Angular, and PostgreSQL improving performance by 35%.
  • Built REST microservices integrating multiple business systems.
  • Deployed AWS EC2/Lambda services achieving 99.9% uptime.
  • Automated CI/CD pipelines using Jenkins & GitHub Actions.
  • Implemented secure JWT authentication and compliance practices.

Technoprism LLC

Apr 2025 – Oct 2025

Jr. Software Engineer

Analytics & Real-Time Dashboards

  • Developed Python/Node.js APIs processing 10M+ daily events.
  • Built Angular dashboards with real-time sync.
  • Optimized SQL/MongoDB queries reducing latency by 30%.
  • Achieved 95% test coverage with PyTest & JUnit.

American Express

Feb 2023 – Dec 2024

Software Engineer

Enterprise Fraud Detection & Risk Analytics

  • Developed Spring Boot & FastAPI microservices for fraud scoring.
  • Built Kafka pipelines for high-volume anomaly detection.
  • Optimized PostgreSQL + caching improving speed by 40%.
  • Deployed AWS Lambda, EC2, RDS for high availability.
  • Implemented OAuth2/JWT & CI/CD with GitHub Actions.

Cosmicvent Software

Jan 2019 – Jun 2021

Software Engineer

Cloud Microservices & Analytics

  • Developed backend services in Spring Boot & Python improving throughput by 28%.
  • Built dashboards using React.js, Flask, FastAPI.
  • Optimized PostgreSQL/MongoDB improving performance by 32%.
  • Deployed microservices on AWS/GCP achieving 99.9% uptime.

Projects

FAITH CHURCH APP

Community events, sermons, donations — React.js + Firebase + Flask.

React.jsFirebaseFlask
Repo

SELF CHECK-IN SYSTEM

QR check-in, Stripe payments, RBAC.

FastAPIReact.jsAWSPostgreSQL
Repo

PARKING SLOT RESERVATION

Slot booking with JWT auth and live tracking.

Node.jsReact.jsMySQLJWT
Repo

Tech Stack

Programming

JavaPythonJavaScriptTypeScriptSQL

Frameworks

Spring BootFastAPIFlaskReact.jsNode.js

Cloud

AWS (EC2, Lambda, RDS, S3)Azure

Databases

PostgreSQLMySQLMongoDBRedis

DevOps

DockerGitHub ActionsJenkins

Testing

JUnitPyTestSelenium

Selected Impact

API Optimisation

Improved API performance by ~40% at Amex.

Data Reliability

Achieved 95%+ test coverage across services.

Uptime

Maintained 99.9% uptime on AWS deployments.