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Hi, I’m Raghavamma Mannem. I’m a Full Stack Developer with 4+ years of experience building scalable microservices and responsive user interfaces for healthcare and e-commerce. I enjoy turning complex requirements into robust, secure software using Java, Spring Boot, React, and modern cloud and container technologies. I thrive in collaborative teams, value clean architecture, and continuously optimize performance and reliability. I’m passionate about healthcare interoperability (FHIR, HL7, C-CDA), event-driven systems with Kafka, and delivering high-quality features through TDD, code reviews, and continuous learning.…Hi, I’m Raghavamma Mannem. I’m a Full Stack Developer with 4+ years of experience building scalable microservices and responsive user interfaces for healthcare and e-commerce. I enjoy turning complex requirements into robust, secure software using Java, Spring Boot, React, and modern cloud and container technologies. I thrive in collaborative teams, value clean architecture, and continuously optimize performance and reliability. I’m passionate about healthcare interoperability (FHIR, HL7, C-CDA), event-driven systems with Kafka, and delivering high-quality features through TDD, code reviews, and continuous learning.

Raghavamma Mannem

Full Stack Developer, Web Developer, Front-End Developer, +3

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Hi, I’m Raghavamma Mannem. I’m a Full Stack Developer with 4+ years of experience building scalable microservices and responsive user interfaces for healthcare and e-commerce. I enjoy turning complex requirements into robust, secure software using Java, Spring Boot, React, and modern cloud and container technologies. I thrive in collaborative teams, value clean architecture, and continuously optimize performance and reliability. I’m passionate about healthcare interoperability (FHIR, HL7, C-CDA), event-driven systems with Kafka, and delivering high-quality features through TDD, code reviews, and continuous learning.…Hi, I’m Raghavamma Mannem. I’m a Full Stack Developer with 4+ years of experience building scalable microservices and responsive user interfaces for healthcare and e-commerce. I enjoy turning complex requirements into robust, secure software using Java, Spring Boot, React, and modern cloud and container technologies. I thrive in collaborative teams, value clean architecture, and continuously optimize performance and reliability. I’m passionate about healthcare interoperability (FHIR, HL7, C-CDA), event-driven systems with Kafka, and delivering high-quality features through TDD, code reviews, and continuous learning.

Available to hire

Hi, I’m Raghavamma Mannem. I’m a Full Stack Developer with 4+ years of experience building scalable microservices and responsive user interfaces for healthcare and e-commerce. I enjoy turning complex requirements into robust, secure software using Java, Spring Boot, React, and modern cloud and container technologies.

I thrive in collaborative teams, value clean architecture, and continuously optimize performance and reliability. I’m passionate about healthcare interoperability (FHIR, HL7, C-CDA), event-driven systems with Kafka, and delivering high-quality features through TDD, code reviews, and continuous learning.

Skills

Experience Level

Expert

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Intermediate

Language

Javanese

Advanced

Work Experience

Full Stack Developer at McKesson

January 1, 2025 - Present

Developed secure and scalable microservices using Java, Spring Boot, Spring MVC and Spring Security for healthcare interoperability and medication workflow processing platforms. Designed RESTful APIs with OpenAPI/Swagger documentation to support EHR integrations, prescription workflows and clinical data exchange services. Integrated HL7v2, FHIR, C-CDA and SCRIPT standards for seamless exchange of patient demographics, medication orders, lab records and clinical summaries between EHR systems. Built event-driven healthcare workflow using Apache Kafka for asynchronous processing of HL7v2 & FHIR clinical events across distributed healthcare system. Implemented JPA/Hibernate-based persistence layers with Oracle and PostgreSQL databases while optimizing SQL queries and transaction management for high-volume healthcare transactions. Developed responsive React & TypeScript-based provider-facing dashboards with reusable frontend integration layer & end-to-end UI validation mechanism. Containeri

Full Stack Developer at HCLTech

August 1, 2020 - June 1, 2023

Architected and scaled high-volume transaction processing microservices using Java and Spring Boot for e-commerce order checkout, improving throughput during peak traffic. Engineered the core Shopping Cart & Order Management Systems, redesigned Payment Gateway Integration with Apache Kafka event-driven architecture, and optimized relational databases (MySQL, PostgreSQL, Oracle). Frontend modernization with Angular, TypeScript and Redux, achieving faster render times on low-bandwidth networks. Migrated services to Docker containers orchestrated by Kubernetes on AWS (EC2, S3, RDS), cutting cloud overhead by 18%. Led Agile/Scrum practices, emphasized TDD, code reviews, and performance optimization.