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Hi, I’m Leela Gopala Bharath Kumar Challagulla, a Full Stack Developer with over 3 years of experience delivering scalable, enterprise-grade applications using Java, Spring Boot, React, and Node.js. I thrive on building secure, cloud-native microservices and responsive frontends for healthcare, automotive, and public sector domains, focusing on clean code, testing, and high-impact delivery. I am proficient in RESTful API development, FHIR integration, and OAuth 2.0 / JWT-based RBAC, and I enjoy automating CI/CD pipelines with Jenkins, GitHub Actions, and Docker, deploying to AWS and Azure. I collaborate in Agile teams to deliver reliable, user-centric solutions with measurable impact.…Hi, I’m Leela Gopala Bharath Kumar Challagulla, a Full Stack Developer with over 3 years of experience delivering scalable, enterprise-grade applications using Java, Spring Boot, React, and Node.js. I thrive on building secure, cloud-native microservices and responsive frontends for healthcare, automotive, and public sector domains, focusing on clean code, testing, and high-impact delivery. I am proficient in RESTful API development, FHIR integration, and OAuth 2.0 / JWT-based RBAC, and I enjoy automating CI/CD pipelines with Jenkins, GitHub Actions, and Docker, deploying to AWS and Azure. I collaborate in Agile teams to deliver reliable, user-centric solutions with measurable impact.

Leela Gopala Bharath Kumar Challagulla

Full Stack Developer, Developer, Programmer, +4

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Hi, I’m Leela Gopala Bharath Kumar Challagulla, a Full Stack Developer with over 3 years of experience delivering scalable, enterprise-grade applications using Java, Spring Boot, React, and Node.js. I thrive on building secure, cloud-native microservices and responsive frontends for healthcare, automotive, and public sector domains, focusing on clean code, testing, and high-impact delivery. I am proficient in RESTful API development, FHIR integration, and OAuth 2.0 / JWT-based RBAC, and I enjoy automating CI/CD pipelines with Jenkins, GitHub Actions, and Docker, deploying to AWS and Azure. I collaborate in Agile teams to deliver reliable, user-centric solutions with measurable impact.…Hi, I’m Leela Gopala Bharath Kumar Challagulla, a Full Stack Developer with over 3 years of experience delivering scalable, enterprise-grade applications using Java, Spring Boot, React, and Node.js. I thrive on building secure, cloud-native microservices and responsive frontends for healthcare, automotive, and public sector domains, focusing on clean code, testing, and high-impact delivery. I am proficient in RESTful API development, FHIR integration, and OAuth 2.0 / JWT-based RBAC, and I enjoy automating CI/CD pipelines with Jenkins, GitHub Actions, and Docker, deploying to AWS and Azure. I collaborate in Agile teams to deliver reliable, user-centric solutions with measurable impact.

Available to hire

Hi, I’m Leela Gopala Bharath Kumar Challagulla, a Full Stack Developer with over 3 years of experience delivering scalable, enterprise-grade applications using Java, Spring Boot, React, and Node.js. I thrive on building secure, cloud-native microservices and responsive frontends for healthcare, automotive, and public sector domains, focusing on clean code, testing, and high-impact delivery.

I am proficient in RESTful API development, FHIR integration, and OAuth 2.0 / JWT-based RBAC, and I enjoy automating CI/CD pipelines with Jenkins, GitHub Actions, and Docker, deploying to AWS and Azure. I collaborate in Agile teams to deliver reliable, user-centric solutions with measurable impact.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Java Full Stack Developer at CitiusTech

January 1, 2025 - Present

Architected scalable microservices using Java 17, Spring Boot, Apache Kafka, and MongoDB, improving healthcare data ingestion latency by 40%. Developed dynamic, component-based UIs with React.js, Redux Toolkit, and TypeScript, enhancing user experience and frontend load times by 30%. Built secure RESTful APIs using Spring Security, OAuth 2.0, and JWT to support over 50K daily active users with HIPAA compliance. Integrated HL7 FHIR R4 APIs with EHR systems, reducing manual data entry by 25%. Automated CI/CD pipelines with Jenkins, Docker, and Kubernetes, halving release cycle times and enabling zero-downtime deployments on AWS EKS. Established robust test suites that increased code coverage by 60% and reduced bugs by 35%, ensuring greater reliability and stakeholder trust.

Full Stack Developer (Digital Specialist Engineer) at Infosys Limited

July 1, 2023 - August 5, 2025

Engineered scalable frontends using React.js and Angular 11 with lazy loading, reducing load times by 30%. Developed backend microservices using Node.js and Express to support over 100K daily API transactions managing vehicle profiles and digital workflows. Optimized PostgreSQL and MongoDB queries increasing API throughput by 40%. Automated CI/CD workflows using GitHub Actions, Jenkins, and Docker, reducing manual effort by 80%. Implemented OAuth 2.0 and JWT with RBAC securing vehicle ownership data. Led Agile sprint-based development for vehicle verification and digital signature modules, ensuring timely releases with minimal defects. Migrated legacy Node.js services to Dockerized Azure App Services, cutting downtime by 50%.

Java Full Stack Developer at Trigyn Technologies

July 1, 2021 - August 5, 2025

Designed and implemented RESTful APIs using Java 11, Spring Boot, and Hibernate, reducing manual reconciliation by 35% for a municipal finance application. Created interactive frontends with React.js and Bootstrap, increasing self-service usage by 40%. Refactored legacy JSP and Struts modules into Spring Boot microservices, improving maintainability and cutting deployment time by 60%. Optimized SQL Server stored procedures, reducing report generation time drastically. Secured user access with Spring Security and JWT compliant with e-Governance standards. Collaborated in Agile sprints using JIRA, Postman, and Git for smooth development and QA cycles.

Java Full Stack Developer at CitiusTech

January 1, 2025 - Present

Architected a scalable microservices architecture using Java 17, Spring Boot, Apache Kafka, and MongoDB, reducing healthcare data ingestion latency by 40%. Developed dynamic UIs with React.js, improving frontend load times by 30% and enhancing productivity for clinicians. Built secure RESTful APIs implementing Spring Security, OAuth 2.0, and JWT to support HIPAA compliance. Integrated HL7 FHIR R4 APIs for real-time clinical data interoperability, cutting manual data entry by 25%. Automated CI/CD pipelines with Jenkins, Docker, and Kubernetes on AWS EKS, halving release cycles and enabling zero-downtime deployments. Established comprehensive testing with JUnit, Mockito, and Cypress, increasing code coverage and reducing bugs significantly.

Full Stack Developer (Digital Specialist Engineer) at Infosys Limited

July 31, 2023 - August 18, 2025

Developed scalable frontends using React.js and Angular 11 to improve user experience in vehicle and dealership onboarding, reducing load times by 30%. Built backend microservices with Node.js and Express, supporting over 100K daily API requests for vehicle profile and document workflows. Enhanced database performance via query optimization and indexing in PostgreSQL and MongoDB, boosting API throughput by 40%. Automated and streamlined CI/CD pipelines with GitHub Actions, Jenkins, and Docker, cutting manual effort by 80%. Implemented OAuth 2.0 and JWT-based RBAC for security of sensitive vehicle ownership data. Led Agile sprint teams to timely deliver key modules and modernized legacy services through Dockerized Azure App Services, reducing downtime by 50%.

Java Full Stack Developer at Trigyn Technologies

July 31, 2021 - August 18, 2025

Designed RESTful APIs with Java 11, Spring Boot, and Hibernate, integrating internal modules and reducing manual reconciliation by 35% in municipal finance applications. Developed interactive frontends using React.js and Bootstrap, driving a 40% increase in self-service for government portals. Refactored legacy systems into modular Spring Boot microservices, improving maintainability and cutting deployment times by 60%. Optimized SQL Server stored procedures to reduce report generation times from minutes to seconds. Secured applications with Spring Security and JWT in compliance with Indian e-Governance standards. Collaborated in Agile sprints for iterative releases with JIRA, Postman, and Git integration.

Java Full Stack Developer at CitiusTech

January 1, 2025 - Present

Architected scalable cloud-native microservices using Java 17, Spring Boot, Apache Kafka, and MongoDB for a healthcare analytics platform, improving ingestion latency by 40% and boosting throughput. Implemented secure RESTful APIs with Spring Security, OAuth 2.0, and JWT for RBAC, supporting over 50k daily active users. Built dynamic UIs with React.js, Redux Toolkit, and TypeScript to enhance clinician productivity. Integrated HL7 FHIR R4 APIs with provider EHRs for real-time data interoperability and reduced manual entry by 25%. Automated CI/CD pipelines with Jenkins, Docker, and Kubernetes for multi-environment deployments on AWS EKS, achieving near-zero downtime. Established comprehensive test suites (JUnit, Mockito, Cypress) increasing code coverage by 60% and reducing production defects by 35%.

Full Stack Developer (Digital Specialist Engineer) at Infosys Limited

July 1, 2023 - September 23, 2025

Delivered scalable frontend modules using React.js and Angular 11 with lazy loading and code-splitting to reduce initial load times by 30%. Built backend microservices in Node.js/Express to manage vehicle profiles, ownership histories, and digital documents, handling 100k+ API transactions daily. Optimized PostgreSQL and MongoDB performance with refined queries and indexing, boosting API throughput by 40%. Streamlined CI/CD with GitHub Actions, Jenkins, and Docker for multi-environment deployments and RBAC-secured access via OAuth 2.0/JWT. Led Agile sprints for vehicle verification, digital signatures, and document validation, ensuring timely releases and minimal post-launch defects. Modernized legacy Node.js services by containerizing on Azure App Services, reducing downtime by 50% during version rollouts.

Java Full Stack Developer at Trigyn Technologies

July 1, 2021 - September 23, 2025

Designed and implemented RESTful APIs using Java 11, Spring Boot, and Hibernate, enabling seamless integration between internal modules and reducing reconciliation efforts by 35% for a municipal finance application. Created interactive frontends with React.js and Bootstrap for government portals, increasing self-service usage by 40%. Refactored legacy JSP/Struts into modular Spring Boot microservices, improving maintainability and cutting deployment time by 60%. Optimized SQL Server stored procedures and queries, reducing report generation time for high-volume datasets. Enforced authentication and RBAC with Spring Security and JWT to protect user data per e-governance standards. Collaborated in Agile sprints with JIRA, Postman, and Git to ensure traceability and rapid feedback across dev/QA teams.

Java Full Stack Developer at CitiusTech

January 1, 2025 - Present

Architected scalable microservices using Java 17, Spring Boot, Apache Kafka, and MongoDB to reduce healthcare data ingestion latency by 40% and increase throughput on a cloud-native analytics platform. Built component-based UIs with React.js, Redux Toolkit, and TypeScript, reducing frontend load times by 30% and boosting physician productivity on population health dashboards. Secured RESTful APIs with Spring Security, OAuth 2.0, and JWT for RBAC across 50K+ daily users. Integrated HL7 FHIR R4 APIs for real-time interoperability, reducing manual data entry by 25% and speeding care decisions. Automated CI/CD with Jenkins, Docker, and Kubernetes for zero-downtime deployments on AWS EKS. Implemented unit/integration tests with JUnit, Mockito, and Cypress, increasing code coverage by 60% and reducing production bugs by 35%.

Full Stack Developer (Digital Specialist Engineer) at Infosys Limited

July 31, 2023 - September 23, 2025

Developed scalable frontends with React.js and Angular 11 for vehicle and dealership onboarding; leveraged lazy loading/code-splitting to reduce load times by 30%. Built backend microservices with Node.js/Express supporting 100K+ daily API transactions across dealer/customer portals. Optimized PostgreSQL and MongoDB queries with indexing, increasing API throughput by 40%. Streamlined CI/CD with GitHub Actions, Jenkins, and Docker for multi-environment deployments and RBAC with OAuth 2.0/JWT. Led Agile campaigns delivering modules for vehicle verification, digital signatures, and document validation; migrated legacy Node.js services to Dockerized Azure App Services, reducing downtime by 50%.

Java Full Stack Developer at Trigyn Technologies

July 31, 2021 - September 23, 2025

Designed RESTful APIs using Java 11, Spring Boot, and Hibernate to enable seamless internal module integration; reduced reconciliation efforts by 35% in municipal finance app. Built interactive frontends with React.js and Bootstrap; increased self-service usage by 40%. Refactored JSP/Struts into modular Spring Boot microservices; improved maintainability and deployment time by 60%. Optimized SQL Server stored procedures and queries; reduced report generation time for high-volume datasets. Enforced authentication and authorization with Spring Security/JWT; followed Indian e-Governance security standards. Led Agile sprints with JIRA/Postman/Git for traceability and rapid feedback.