Available to hire
Hi, I’m Sowmith Reddy Gaddam, a Lead Java Full Stack Developer with 15+ years of experience delivering scalable, secure enterprise applications across banking, investment, healthcare, and public sector domains. I thrive on building resilient, maintainable systems using Java 11/17, Spring Boot, microservices, and modern cloud platforms.
I specialize in real-time processing with Kafka and Redis, design for performance and security (OAuth2/JWT, HIPAA, OWASP), and enjoy mentoring teams through Agile practices. I’ve led cross-functional efforts to modernize platforms and improve time-to-value for business stakeholders.
Skills
Experience Level
Language
English
Fluent
Work Experience
Lead Java Full Stack Developer at Citi Bank
September 1, 2024 - PresentLed the development of cloud-native backend services for Citi Bank’s global Investment & Portfolio Management Platform, focusing on real-time processing, trading and portfolio features, and secure, scalable integration with core banking, trading, and payment systems. Contributed to UI enhancements for portfolio dashboards and trading workflows, streamlined data processing and storage logic, improved system response times, and strengthened security across services. Participated in deployment activities, monitoring, issue resolution, and continuous improvement across development, testing, and production support.
Full Stack Developer at MIO Partners
November 1, 2022 - August 1, 2024Developed and maintained scalable Java 17/Spring Boot microservices to support real-time trading, fund, and portfolio operations. Built event-driven architectures using Kafka, Redis, and Hazelcast; integrated with Angular dashboards. Implemented CI/CD pipelines with Jenkins, Docker, and Kubernetes/OpenShift. Ensured high performance and security (OAuth2/JWT, SAML SSO) and observability using Prometheus, Grafana, ELK Stack, and OpenTelemetry.
Lead Full Stack Developer at Centene Corporation
August 1, 2020 - October 1, 2022Led Centene’s Digital ID Card Platform development; designed cloud-native microservices using Java 11/17, Spring Boot, Spring Cloud; integrated with Kafka, RabbitMQ, MongoDB, Redis; implemented HIPAA-compliant ID and claims workflows; built FHIR/HL7 API integrations; created event-driven pipelines with Avro schemas; containerized with Docker/Kubernetes/OpenShift; CI/CD via Jenkins, Git, Nexus, SonarQube; implemented OAuth2/JWT/SAML SSO; added observability with Prometheus, Grafana, ELK, OpenTelemetry; performed performance testing.
Java Developer at Georgia Department of Public Health
April 1, 2018 - July 1, 2020Modernized legacy patient management and disease reporting platform into service-oriented architecture using Java 8/11; REST/SOAP APIs for statewide data exchange; HL7/CDC messaging; relational and NoSQL databases; security (OAuth2/JWT, SAML, TLS); containerized with Docker; Kubernetes/OpenShift; CI/CD; monitoring with Prometheus, Grafana, ELK; unit/integration/test using JUnit/Mockito; collaborated with health officials; created architecture docs.
Full Stack Developer at Fidelity Investments
January 1, 2016 - March 1, 2018Developed SOAP/REST services with Java, Spring, Hibernate; deployed to Tomcat; refactored legacy code; built dynamic reports with JasperReports; enhanced UI with HTML5, jQuery, Bootstrap; applied OWASP security; conducted testing; participated in Agile Scrum; collaborated with business teams.
Education
Master of Science in Mechanical Engineering at Texas A&M University - Kingsville
August 1, 2014 - December 1, 2015Bachelor of Engineering in Mechanical Engineering at CVR College of Engineering, Hyderabad
August 1, 2010 - May 1, 2014Master of Science in Mechanical Engineering at Texas A&M University-Kingsville
August 1, 2014 - December 1, 2015Bachelor of Engineering in Mechanical Engineering at CVR College of Engineering, Hyderabad
August 1, 2010 - May 1, 2014Qualifications
Industry Experience
Financial Services, Healthcare, Government, Software & Internet, Professional Services
Skills
Experience Level
Hire a Full Stack Developer
We have the best full stack developer experts on Twine. Hire a full stack developer in Tampa today.