Java Developer Stack

Nekkanti Vinuthna

********.*****@*****.*** 980-***-**** https://www.linkedin.com/in/vinuthna-n/ PROFESSIONAL SUMMARY:

• Full Stack Java Developer with 5+ years of experience in designing, developing, and deploying scalable, secure, and high-performance applications across healthcare, networking, and education domains.

• Strong expertise in Core Java (8–17), applying multithreading, concurrency utilities, Streams API, and Collections Framework to build efficient, maintainable solutions.

• Hands-on experience architecting and building applications using the Spring ecosystem (Spring Boot, Spring MVC, Spring Data JPA, Spring Cloud, Spring Security, Spring Batch, Hibernate) and Microservices Architecture.

• Proficient in implementing distributed and event-driven systems, using Kafka, RabbitMQ, JMS, and REST APIs for reliable inter-service communication. Applied microservices design patterns, including SAGA, CQRS, Strangler, and Domain-Driven Design (DDD) to ensure modularity and fault tolerance.

• Skilled in RESTful and SOAP API development, secured with OAuth2.0 and JWT, enabling robust service-to-service and client-to-service integrations.

• Proficient in Angular (6–16) and React.js, developing SPAs with RxJS, NgRx, Redux, Context API, and Hooks; optimized UI performance with lazy loading, memoization, and modular components.

• Experienced in database design and optimization across Oracle, PostgreSQL, MySQL, SQL Server, MongoDB, and DynamoDB; expertise in schema design, indexing, partitioning, stored procedures, and query tuning.

• Cloud-native expertise with AWS (EC2, S3, RDS, DynamoDB, Lambda, EKS, CloudWatch, SQS, SNS); skilled in containerization (Docker, Kubernetes) and Infrastructure as Code

(Terraform, CloudFormation) for automated and consistent deployments.

• Implemented CI/CD pipelines using Jenkins, GitLab CI, Nexus, and SonarQube with automated builds, code quality scans, and secure blue-green deployments.

• Strong background in application performance tuning (JVM optimization, GC tuning, database tuning) and load/stress testing with JMeter, Gatling, and LoadRunner to validate scalability under high concurrency.

• Proficient in monitoring and observability with ELK Stack, Splunk, Grafana, Prometheus, Datadog, and Log4J, enabling proactive issue detection and reduced MTTR.

• Hands-on in test automation and quality assurance with JUnit, Mockito, Selenium, Jest, and Postman, supporting TDD/BDD practices for stable releases.

• Skilled in version control with Git, Bitbucket, and GitLab, collaborating in Agile Scrum teams to deliver enterprise-grade solutions on time.

• Strong communicator and problem-solver, with proven ability to work effectively with cross-functional teams and adapt quickly in dynamic environments.

TECHNICAL SKILLS:

Programming Languages Core Java, SQL, PL/SQL, JavaScript, TypeScript, Python, Shell Scripting, C, C++

Frameworks & Libraries Spring Boot, Spring MVC, Spring Cloud, Spring Security, Hibernate, Spring Data JPA, Spring Batch, JUnit, Mockito, Log4j, Microservices (SAGA, CQRS, DDD patterns), Apache Kafka, RabbitMQ, JMS

Frontend Technologies Angular, React.js, Redux, RxJS, Context API, Hooks, HTML5, CSS3, Bootstrap, Material-UI, Node.js, Express.js

Databases Oracle, PostgreSQL, MySQL, SQL Server, DynamoDB, MongoDB Cloud Platforms AWS (EC2, S3, RDS, DynamoDB, Lambda, EKS, SQS, SNS, CloudWatch, IAM), GCP (Compute Engine, Cloud Storage, Pub/Sub, BigQuery, GKE) DevOps & IaC Terraform, CloudFormation, Docker, Kubernetes, Helm, Jenkins, GitLab CI, Nexus, SonarQube, Maven, Gradle

Caching, Monitoring & Logging Redis, Hazelcast, ElasticSearch, ELK Stack, Splunk, Grafana, Prometheus, Datadog, Log4J

Testing & API Tools Postman, Swagger/OpenAPI, Selenium, Playwright, Jest, React Testing Library, JUnit, Mockito, JMeter, Gatling, LoadRunner Version Control & Tools Git, Bitbucket, GitLab, IntelliJ IDEA, Eclipse, STS, Visual Studio Code, MySQL Workbench

Certifications AWS Certified Developer – Associate, Oracle Certified Java Developer, MuleSoft Certified Developer

PROFESSIONAL EXPERIENCE:

Client: Elevance Health Duration: Aug 2024 –Present Role: Full Stack Java Developer Location: Chicago, IL Project Description: Delivered a comprehensive digital healthcare solution, supporting efficient patient record management, automated claim alerts, and insightful analytics dashboards for care providers and members.

Responsibilities:

• Developed and modernized full-stack healthcare applications using Java, Spring Boot, React, and Angular, delivering responsive SPAs that improved patient engagement and provider workflows.

• Built reusable React.js components with Hooks, Context API, and Redux; optimized state management and reduced re-renders, improving portal performance under heavy user load.

• Migrated Angular modules to React, modularizing UI with React Router and lazy loading, improving maintainability and reducing load time.

• Engineered real-time analytics dashboards with Chart.js and D3.js to visualize claim trends, utilization, and member health KPIs.

• Optimized API performance using React Query + Axios for efficient data fetching and caching, reducing healthcare portal latency.

• Designed secure RESTful APIs with Spring Boot, Spring Security, OAuth2, and JWT; integrated with PostgreSQL, ElasticSearch, and DynamoDB for patient and claims data.

• Architected microservices with Spring Boot & Spring Cloud, applying 12-factor principles and patterns such as SAGA, CQRS, and DDD to ensure modular, resilient healthcare workflows.

• Enabled asynchronous communication between services using Kafka and RabbitMQ, with Feign Client for synchronous calls, ensuring timely claims adjudication and alerts.

• Provisioned cloud infrastructure on AWS (EC2, S3, RDS, DynamoDB, Lambda, EKS) with Terraform; implemented Node.js Lambda + SQS for event-driven claim notifications.

• Automated CI/CD pipelines in Jenkins, building Docker images, integrating SonarQube scans, and deploying securely to AWS EKS.

• Improved query performance with Hibernate ORM, caching, and custom SQL tuning, enabling faster reporting and analytics for large claim datasets.

• Implemented centralized monitoring and logging with ELK Stack, Datadog, SLF4J, and Log4j, enabling proactive incident detection and compliance auditing.

• Enhanced test coverage by implementing unit and integration tests for React (Jest, React Testing Library) and Java (JUnit, Mockito), ensuring high-quality HIPAA-compliant releases.

• Collaborated in Agile Scrum teams, participating in sprint planning, backlog refinement, and cross- functional healthcare initiatives using JIRA

Client: Telmar Network / Cisco Duration: May 2022- Aug 2024 Role: Full Stack Java Developer Houston, TX

Project Description: Developed and modernized a network device testing and monitoring platform, enabling automated diagnostics, real-time log retrieval, and scalable service delivery across thousands of production devices.

Responsibilities:

• Designed and implemented RESTful microservices in Java and Kotlin using Spring Boot, deployed on AWS for scalable and modular functionality.

• Architected Angular 8 + TypeScript micro-frontends within an Nx monorepo, leveraging RxJS for reactive state management, improving UI responsiveness by 40% across 2,000+ daily network device test runs.

• Built dynamic dashboards with Angular, integrating WebSockets and Kafka Streams to provide near real- time visibility into device health and diagnostic events.

• Developed Spring MVC flows with Hibernate/JPA and optimized database access via Spring JDBC Template, ensuring high-performance queries and reduced latency in device data retrieval.

• Automated parsing of diagnostic logs and telemetry data using Python scripts, integrated into CI/CD pipelines (Jenkins + Docker), reducing test cycle times by 25%.

• Deployed AWS Lambda functions for event-driven log processing and built AWS EKS clusters to handle large-scale orchestration of network tests.

• Enhanced application security and authentication using Keycloak SSO, Spring Security policies, and caching strategies, cutting login/authentication latency by 40%.

• Set up centralized logging and monitoring using Splunk, Datadog, and ELK Stack, enabling proactive detection of device issues and reducing MTTR (mean time to resolution).

• Conducted rigorous unit/integration testing with JUnit, Mockito, and JaCoCo, maintaining 85%+ code coverage across critical services.

• Streamlined CI/CD with Jenkins, SonarQube, and Docker, automating build validation, quality checks, and deployments across multiple environments.

• Applied design patterns (Singleton, Factory, Proxy, Builder) to maintain scalable, modular architecture and support new device onboarding with minimal changes.

• Collaborated with cross-functional network engineers to translate test requirements into reusable backend APIs and automated workflows.

• Mentored junior developers in Angular best practices, API development, and CI/CD automation, improving team delivery speed and quality.

Client: Scholarship Auditions Duration: May 2019-April 2022 Role: Java Developer Nashville, TN(Remote)

Project Description: Built a scalable dashboard and content management platform to support students, educators, and administrators with improved data visualization, performance tracking, and interactive reporting in the education sector.

Responsibilities:

• Engineered RESTful APIs using Spring Boot, Spring MVC, and REST Controllers to process JSON payloads for student enrollment and scholarship application data.

• Developed reusable Angular 6 components and services with TypeScript, integrating APIs via HTTPClient for real-time dashboards and dynamic data visualization.

• Optimized database operations by leveraging Hibernate ORM, Spring Data JPA, JPQL queries, and caching, reducing query latency across Oracle and PostgreSQL databases.

• Authored complex SQL scripts, stored procedures, and PL/SQL functions to handle large-scale student data sets and improve reporting performance.

• Automated ingestion workflows with Spring Batch and custom ETL logic, increasing throughput by 50% and minimizing manual intervention.

• Containerized applications using Docker and orchestrated deployments with Kubernetes Pods and Helm charts, enabling horizontal scaling and faster rollouts.

• Streamlined CI/CD pipelines using Jenkins declarative pipelines, Maven, and Terraform, integrating SonarQube scans and automated environment provisioning.

• Architected AWS solutions including S3 for content storage, EC2 with auto-scaling groups, and Lambda

(Node.js) functions for event-driven triggers, ensuring high availability.

• Provisioned secure environments with Terraform IaC by configuring VPCs, subnets, and security groups for staging and production deployments.

• Implemented centralized logging and monitoring using Splunk, CloudWatch, and Log4J, cutting mean time to resolution (MTTR) during peak usage cycles.

• Performed unit and integration testing with JUnit, Mockito, and Postman collections, maintaining 85%+ coverage and stable deployments.

• Applied Agile Scrum practices including sprint planning, backlog refinement, and sprint reviews to deliver features iteratively and improve release predictability.

• Documented API specifications using Swagger/OpenAPI and deployment workflows, enabling smoother knowledge transfer and developer onboarding.

EDUCATION:

• Master of Science in Computer Science - George Mason University 2023

• Bachelor of Technology in Computer Science - Christ University 2021

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