Sahithi Popuru

About Sahithi Popuru

Senior Java Full Stack Developer with 10+ years of experience designing, developing, integrating, and supporting large-scale enterprise applications across Healthcare, Automotive, Retail, and Financial domains. Strong expertise in Core Java, multithreading, exception handling, functional programming, Streams API, Spring Boot, Spring MVC, Spring Cloud, Microservices, Hibernate/JPA, and RESTful API design.Experienced in building dynamic front-end applications using Angular (2–14), ReactJS, TypeScript, JavaScript ES6+, HTML5/CSS3, and responsive UI frameworks. Skilled in designing distributed and event-driven architectures using Kafka, Kafka Streams, RabbitMQ, JMS, and real-time messaging patterns.Cloud-native developer with hands-on experience in AWS (EC2, S3, Lambda, RDS, VPC, IAM, SQS, SNS), Docker, Kubernetes (EKS), CI/CD pipelines, monitoring solutions (ELK, Splunk), and production-grade deployments. Strong background in SQL/PLSQL, Oracle, PostgreSQL, MongoDB, Cassandra, DynamoDB, and performance tuning.Recognized for delivering scalable solutions, improving system reliability, optimizing performance, implementing robust security models (OAuth2, JWT, SSO), and collaborating across Agile/Scrum teams. Proven ability in troubleshooting production issues, distributed tracing, system optimization, and leading end-to-end application development.

Experience

1. Senior Java Full Stack Developer

   UnitedHealth Group

   Aug 2022 — Present · Minneapolis, MN, US

   Designed and implemented Spring Boot Microservices for claims validation, provider search, and eligibility workflows using Spring Cloud.Built Angular 12 components, services, guards, and reactive forms for member dashboards and provider portals.Created RESTful APIs with API versioning, JSON optimization, and API Gateway routing rules.Developed Kafka producers/consumers for real-time claims processing and distributed event workflows.Automated claim ingestion and batch workflows using AWS Lambda, SQS, S3 triggers, and CloudWatch alarms.Provisioned AWS infrastructure using CloudFormation and configured VPC, subnets, security groups, and IAM.Implemented cost optimization using S3 lifecycle rules, EC2 sizing, EKS autoscaling, and RDS tuning.Integrated reporting APIs via Azure App Services with secure Azure AD authentication.Enhanced performance using Hibernate caching, optimized JPA queries, and connection pooling.Implemented monitoring using ELK, Splunk, and CloudWatch with automated SLA alerts.Improved microservice security using OAuth2, JWT, RBAC, and HIPAA-compliant access control.Built CI/CD pipelines using Jenkins, GitLab CI, SonarQube, Nexus, and Maven.Resolved complex production issues involving memory leaks, thread pooling, and long-running SQLs.

Education

• Florida Institute of Technology

  Master of Science - MS

  2023 — 2025