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I'm Arunachalam, a senior Java full-stack developer with 7+ years of experience delivering scalable web applications across finance, healthcare, and retail sectors. I specialize in Java/J2EE, Spring, Hibernate, and modern front-end frameworks, and I love turning tricky requirements into reliable software. I enjoy collaborating with cross-functional teams, writing clean code, and continuously learning new technologies. I'm comfortable with cloud deployments (AWS, GCP, PCF), containerization (Docker/Kubernetes), and building data-driven microservices that perform at scale.…I'm Arunachalam, a senior Java full-stack developer with 7+ years of experience delivering scalable web applications across finance, healthcare, and retail sectors. I specialize in Java/J2EE, Spring, Hibernate, and modern front-end frameworks, and I love turning tricky requirements into reliable software. I enjoy collaborating with cross-functional teams, writing clean code, and continuously learning new technologies. I'm comfortable with cloud deployments (AWS, GCP, PCF), containerization (Docker/Kubernetes), and building data-driven microservices that perform at scale.

Arunachalam S

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

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I'm Arunachalam, a senior Java full-stack developer with 7+ years of experience delivering scalable web applications across finance, healthcare, and retail sectors. I specialize in Java/J2EE, Spring, Hibernate, and modern front-end frameworks, and I love turning tricky requirements into reliable software. I enjoy collaborating with cross-functional teams, writing clean code, and continuously learning new technologies. I'm comfortable with cloud deployments (AWS, GCP, PCF), containerization (Docker/Kubernetes), and building data-driven microservices that perform at scale.…I'm Arunachalam, a senior Java full-stack developer with 7+ years of experience delivering scalable web applications across finance, healthcare, and retail sectors. I specialize in Java/J2EE, Spring, Hibernate, and modern front-end frameworks, and I love turning tricky requirements into reliable software. I enjoy collaborating with cross-functional teams, writing clean code, and continuously learning new technologies. I'm comfortable with cloud deployments (AWS, GCP, PCF), containerization (Docker/Kubernetes), and building data-driven microservices that perform at scale.

Available to hire

I’m Arunachalam, a senior Java full-stack developer with 7+ years of experience delivering scalable web applications across finance, healthcare, and retail sectors. I specialize in Java/J2EE, Spring, Hibernate, and modern front-end frameworks, and I love turning tricky requirements into reliable software.

I enjoy collaborating with cross-functional teams, writing clean code, and continuously learning new technologies. I’m comfortable with cloud deployments (AWS, GCP, PCF), containerization (Docker/Kubernetes), and building data-driven microservices that perform at scale.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Java Full Stack Developer at Best Buy

July 1, 2023 - Present

Implemented core Java concepts (multithreading, concurrency, exception handling) and led SDLC activities in an Agile environment. Developed SPAs with ReactJS, using Java 17, HTML5, CSS3, and Bootstrap. Built RESTful services using Spring MVC/Spring Boot and integrated with a React frontend; authored DAOs with Hibernate mapping to Oracle schemas. Created monitoring utilities publishing metrics to Grafana via Graphite API and New Relic, and implemented Kafka-based streaming. Built data analytics tooling in Python (Pandas, Matplotlib) for dashboards; exposed REST APIs with HATEOAS and applied design patterns (Adapter, Service Locator, DAO). Involved in CI/CD with Jenkins and cloud deployment (PCF, AWS Lambda/S3). Contributed to front-end with Angular/NodeJS and integrated with back-end services via REST/SOAP.

Sr Java/J2EE Developer at Medcan

January 1, 2020 - July 31, 2023

Led analysis, design, and development in an Agile SDLC. Built microservices with Spring Boot and Spring Batch for assignment workflows, with REST authentication endpoints. Managed MongoDB collections and indexes for efficient data access. Coordinated event-driven communication using Apache Kafka. Deployed services to AWS EC2 with Docker and implemented CI/CD via Azure DevOps. Developed batch jobs (Perl/Unix) for Broadridge data loading, migrated data from SQL to MongoDB, and contributed to front-end with Angular11. Migrated logging from Log4j to Logback; implemented OAuth2/Spring Security for REST endpoints. Wrote unit tests with JUnit/Mockito and deployed through Jenkins; leveraged Google Cloud and AWS for analytics pipelines.

Java Developer at TCS

September 1, 2017 - January 31, 2020

Actively contributed to analysis, design, development, testing, and deployment in an Agile environment. Scaled microservices using AWS Fargate and SQS; developed Java applications in Eclipse; deployed on WebLogic and Cloud Foundry. Consumed REST services and integrated with front-end frameworks (AngularJS). Implemented SLF4J/LOG4J logging, Swagger API documentation, and REST/SOAP services with WSDL. Worked with Cassandra (CQL) and Hadoop ecosystem, migrated data to GKE, and used JUnit/Mockito for testing. Maintained Git workflows, built CI/CD pipelines with Jenkins, and collaborated across teams to deliver robust back-end services.

Sr Java/J2EE Developer at Medcan, CA

January 1, 2020 - July 1, 2023

Led Java/J2EE development with microservices using Spring Boot and Spring Batch. Designed and maintained MongoDB collections with indexing, and orchestrated data flows between microservices using Apache Kafka. Deployed backend services to AWS EC2 with Docker containers and managed CI/CD using Azure DevOps. Implemented batch jobs for data loading, implemented REST/SOAP services, and contributed to data analytics initiatives using Python. Created dashboards and monitoring via New Relic and Grafana. Worked on transitioning to microservices architecture and cloud-native deployments, and collaborated with frontend teams to build SPA interfaces using Angular/React.

Java Full Stack Developer at Best Buy

July 1, 2023 - Present

Implemented core Java concepts (multithreading, concurrency, collections) and developed SPAs with React.js. Built RESTful services using Spring MVC and Spring Boot, with Hibernate ORM for data access. Integrated monitoring and metrics using Grafana, New Relic, and custom dashboards. Led AWS Lambda data ingestion to S3, containerized services with Docker, and deployed via Jenkins to PCF. Contributed to data warehousing models and BI dashboards, and supported microservices-based architecture with Akka/Scala components.

Java Developer at TCS, India

September 1, 2017 - January 1, 2020

Actively involved in analysis, design, and development following Agile/Scrum. Built microservices with Spring Boot and Spring Batch, including REST services and OAuth security. Designed and managed MongoDB collections, and orchestrated data flows using Apache Kafka. Migrated and deployed services to AWS EC2, implemented containerization with Docker, and supported CI/CD pipelines with Jenkins. Worked on API design (SOAP/REST), front-end integration with Angular, and data modeling across relational and NoSQL databases.