Sai Kumar Musapet

Sr. Full Stack Developer @ Cardinal Health

About

Senior Java Full Stack Engineer with 10+ years of experience designing, building, and scaling enterprise-grade distributed systems across healthcare, insurance, retail, logistics, and fintech domains. I specialize in architecting cloud-native microservices using Java (8/11/17), Spring Boot, Spring Cloud, and event-driven platforms powered by Kafka and RabbitMQ. I have led large-scale deployments across AWS, Azure, and GCP using Kubernetes, Docker, Helm, Terraform, and CI/CD automation pipelines. My experience spans: • HIPAA-compliant healthcare platforms • PCI-DSS secure retail payment systems • Insurance underwriting & claims processing • High-volume distributed retail systems • Logistics and transportation microservices I combine strong backend engineering with modern frontend frameworks (Angular, React, Vue.js) and DevOps automation to deliver highly resilient, observable, and secure systems. Technical Leadership Strengths: ✔ Distributed Systems Architecture ✔ Event-Driven Design (Kafka, RabbitMQ, ActiveMQ) ✔ Multi-Cloud Deployment (AWS, Azure, GCP) ✔ Kubernetes & Container Orchestration ✔ CI/CD & DevSecOps Automation ✔ JVM Performance Optimization ✔ Security Implementation (OAuth2, JWT, SAML, TLS) ✔ Observability (ELK, Prometheus, Grafana, Dynatrace) I build systems that scale, self-heal, and deliver business impact. Open to: Senior/Lead/Principal Engineer roles | Cloud Architect | AI-Accelerated Engineering Roles | High-Impact Contract (C2C)

Country

City

United States

Industry

Information Technology & Services

Skill

Event-Driven Architecture, Distributed Systems, Microservices, REST APIs, AWS Elastic Beanstalk, Java 8, GCP GKE, ActiveMQ, Cassandra, Elasticsearch, Vue.js, Java 11, Azure Kubernetes Service (AKS), RabbitMQ, MongoDB, Terraform, React.js, Java Development, Java, Embedded Java

Experience

Sr. Full Stack Developer

Cardinal Health

2024-7 - Present · 2 yrs 3 mos

At Cardinal Health, leading development of HIPAA-compliant cloud-native healthcare microservices deployed on AWS EKS. Key Impact: • Architected distributed microservices using Java 17 + Spring Boot handling HL7 & FHIR interoperability • Designed Kafka-based real-time streaming platform for patient enrollment and clinical workflows • Reduced API latency by 40% via Redis caching and JPA optimization • Built Kubernetes deployment automation using Helm + Argo CD • Implemented OAuth2, SAML, and API Gateway security controls • Integrated ELK + Dynatrace monitoring for production observability • Automated CI/CD pipelines with Jenkins & Maven enabling zero-downtime releases.

Sr. Full Stack Developer

Equifax

2021-9 - 2024-6 · 2 yrs 10 mos

Atlanta, Georgia, United States

At Equifax, engineered scalable insurance underwriting and claims processing systems deployed on Azure AKS. Impact: • Designed domain-driven microservices for policy lifecycle management • Integrated RabbitMQ for asynchronous underwriting workflows • Implemented secure OAuth2/JWT authentication + MFA • Automated Azure infrastructure provisioning via Terraform • Built React + Redux frontends for agent portals • Tuned JVM performance reducing memory overhead by 30%

Java Full Stack Developer

Costco IT

2018-11 - 2021-8 · 2 yrs 10 mos

Issaquah, Washington, United States

At Costco Wholesale, developed high-volume retail microservices on GCP handling PCI-DSS compliant payment workflows. Impact: • Built product catalog & order management microservices • Designed Elasticsearch search optimization platform • Deployed GKE-based scalable infrastructure • Automated CI/CD using GitLab CI & Spinnaker • Reduced production incidents through proactive monitoring

Java Full Stack Developer

UPS

2016-12 - 2018-10 · 1 yr 11 mos

Atlanta, Georgia, United States

At UPS, engineered transportation microservices for real-time package tracking. Impact: • Developed OAuth2-secured REST APIs • Integrated RabbitMQ & Redis for shipment notifications • Built React dashboards for logistics monitoring • Deployed to AWS Elastic Beanstalk & Kubernetes