Dheeraj Karnati

Led the modernization of a national-scale fleet management system by developing scalable, cloud native full stack applications using React, Node.js, GraphQL, and AWS. Delivered reusable services and optimized front-end components that significantly improved performance and system efficiency across the platform

• Migrated a monolithic Java system to a Node.js and React.js based SPA using GraphQL, boosting system responsiveness by 60%.
• Built scalable microservices with AWS Lambda, API Gateway, and CloudFormation templates for automated deployments.
• Developed React components and GraphQL schemas using Apollo Client and Sequelize ORM.
• Integrated agentic AI features for workflow automation, improving operational efficiency by 40%.
• Enhanced system performance with optimized queries and state management (Redux and Apollo cache).
• Led the CI/CD pipeline setup using Jenkins for AWS-based deployments, reducing deployment errors by 70%.

Designed and developed reusable Spring Boot microservices supporting enterprise lending applications, driving secure API access and service standardization across business units.

• Designed and implemented reusable Spring Boot microservices using the organizational framework “Chassis”.
• Built custom Spring annotations and Gradle plugins to enforce enterprise patterns.
• Developed and onboarded services through APIGEE Gateway, implementing OAuth2 security.
• Automated secure configuration with AWS IAM roles and policies.

Modernized legacy case management systems by delivering single-page web applications (SPAs) with Angular and Spring Boot, improving usability and service delivery for state-wide users.

• Converted legacy applications into SPAs using Angular, TypeScript, and Spring Boot-based microservices.
• Built JWT-authenticated UI components and implemented RESTful APIs across services.
• Used WSO2 API Manager for gateway-based authentication and routing.

Migrated legacy OSB services for Private Fleet / Transportation Management system into resilient, scalable Java microservices using Apache Camel and Spring Boot. Designed and deployed real-time data integration solutions leveraging ActiveMQ and IBM MQ, increasing message throughput and reliability in transportation systems processing 100,000+ transactions per day.

• Developed microservices-based APIs using Spring Boot, Apache Camel, ActiveMQ, and IBM MQ.
• Built scalable data pipelines using Camel routes for ingestion, transformation (via XQuery/XPath), and export in JSON/TEXT formats.
• Designed and exposed RESTful services while consuming legacy SOAP services via OSB.
• Implemented CI/CD pipelines with Jenkins and Docker, deploying containerized applications into Kubernetes environments.
• Wrote robust JUnit test cases, and collaborated in Agile sprints.

Modernized employee management and scheduling systems by migrating monolithic Java apps into RESTful microservices. Built dynamic single-page web applications using Angular 2+ and implemented secure, scalable authentication via SAML and third-party integrations.

• Migrated legacy Java modules into modular, RESTful Microservices, enabling reusable, loosely coupled architectures aligned with modern enterprise standards.
• Developed Single Page Applications (SPAs) using Angular 2, TypeScript, HTML5, and Bootstrap, delivering responsive and dynamic user interfaces.
• Built Angular services and components leveraging Dependency Injection, enabling seamless communication across components and consuming REST APIs effectively.
• Integrated secure third-party authentication using OpenSAML, ensuring SSO-compliant session creation and robust authorization across applications.
• Conducted vulnerability assessments and performance testing to validate application security, scalability, and compliance before production deployments.
• Utilized Maven for build automation and implemented CI pipelines in Jenkins, accelerating the release process and maintaining consistent code quality.

Contributed to UHG's flagship platform by developing enterprise-grade RESTful services using Apache CXF and Spring OSGi. Led initiatives to integrate over 300+ portals via unified SSO, implemented service versioning, and delivered performance tuning and monitoring using Splunk to ensure reliability in production environments.

• Developed scalable RESTful microservices using Apache CXF (JAX-RS) and the Spring OSGi framework, enabling modular service deployment and lifecycle management.
• Designed and implemented API versioning strategies to maintain backward compatibility with legacy clients while introducing new service layers.
• Created RESTful wrappers over existing SOAP services, facilitating modernization without breaking downstream dependencies.
• Utilized Hibernate and JPA for ORM abstraction, enabling consistent DAO implementations across varying database technologies.
• Led migration of repositories from SVN to Git, establishing branching strategies and improving development velocity and collaboration.
• Built a proactive log analysis system using Splunk, enabling early detection of service failures and improving system observability and uptime.