Software Developer at Abbott

Architected and optimized scalable Java/Spring Boot microservices integrated with Kafka, improving responsiveness. Built responsive React/Node.js front-end features and reusable UI components. Implemented concurrent processing utilities using Java concurrency APIs and streams. Developed RESTful APIs and full-stack solutions (REST/GraphQL) backed by PostgreSQL. Built CI/CD pipelines with Jenkins and achieved high test coverage using JUnit/Mockito. Containerized services using Docker and deployed on AWS (EC2/ECS/EKS) with Kubernetes for scaling and availability. Implemented asynchronous messaging with ActiveMQ and event-driven serverless workloads using AWS Lambda and Step Functions.

Senior Java Full Stack Developer at Abbott

Designed and developed scalable, event-driven microservices using Java and Spring Boot, integrating Apache Kafka for real-time processing across multiple downstream consumers. Built responsive front-end applications with React, Redux, Next.js, Node.js, and TypeScript, contributing reusable components to a shared UI library. Implemented multi-threaded Java utilities using J2SE concurrency APIs (ExecutorService, Future, CompletableFuture) to improve throughput under high load. Delivered end-to-end full-stack features including GraphQL and REST API design backed by PostgreSQL, plus corresponding front-end implementation and releases. Supported Jenkins CI/CD pipeline improvements, containerized services with Docker, and deployed Spring Boot microservices on AWS EC2. Participated in code reviews and collaborated with product, architects, and QA to align service boundaries and API contracts. Explored Generative AI/LLM-assisted tooling for code generation and testing workflows.

Software Engineer at Amazon

Delivered full-stack development for Alexa Video onboarding using Java/Spring and cloud-native microservices on AWS. Refactored legacy backend APIs using TDD to improve throughput for large-scale integrations. Implemented RESTful services and J2EE components (Servlets/JSP/EJB) for high availability. Built onboarding experiences across Echo Show devices. Implemented streaming workflows with AWS Lambda integrating SQS/SNS/Firehose/S3 and orchestrated pipelines using Step Functions. Created CI/CD using AWS CodeCommit/CodeBuild/CodeDeploy, deployed containerized services on ECS/EKS, and used CloudWatch for monitoring. Achieved 90% unit test coverage with JUnit/Mockito and reduced regression time.

Software Development Engineer at Amazon

Led full-stack development of video application onboarding workflows for Amazon Alexa Video using Java, Spring, and AWS microservices. Migrated/refactored legacy backend APIs with a Test-Driven Development approach to increase throughput and enable future LLM integration. Designed RESTful Spring Boot services and developed J2EE components (Servlets/JSP/EJB, JAX-RS/Servlet APIs) to expose endpoints for internal and partner clients. Implemented AWS Lambda-based streaming ingestion integrating SQS, SNS, Firehose, and S3 for near real-time downstream availability. Built and maintained CI/CD pipelines using AWS Code Commit/Build/Deploy. Engineered trailer pause/resume functionality for Fire TV Stick with Spring Boot and AWS services. Used CloudWatch for monitoring and provided production support, resolving customer-impacting issues. Performed unit testing with JUnit/Mockito to shorten regression cycles.

Software Engineer at HP Micro Focus

Built an IoT data visualization single-page app using Angular deployed on Azure AKS with Kubernetes. Developed backend persistence with JPA/Hibernate and optimized data access. Implemented RESTful APIs using Java and Spring Boot. Automated testing via Jenkins CI/CD and improved quality and deployment cadence. Designed Node.js multi-protocol broker architecture bridging MQTT/CoAP/REST and implemented QEST with Redis queues. Built ETL pipelines using Apache Airflow and AWS Glue and integrated Elasticsearch for near real-time search/analytics. Deployed containerized services on AWS Fargate and supported hybrid cloud with Azure AKS and Azure Service Bus.