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I am an experienced Full Stack Developer with over 10 years of expertise in designing and developing scalable, high-performance applications primarily across financial and e-commerce domains. I specialize in Java 17, Spring Boot, microservices, and cloud-native solutions using AWS and Azure. My work involves building robust backend systems, integrating secure authentication methods such as OAuth2 and SSO, and applying JVM tuning and reactive programming techniques to enhance system performance. I have a strong passion for leveraging cutting-edge technologies like Kotlin, Golang, Apache Kafka, and Kubernetes to build event-driven, scalable systems. My experience extends to crafting CI/CD pipelines, automating deployments, and delivering cloud-native applications across multiple platforms. I am committed to agile methodologies and best practices like TDD/BDD to deliver high-quality software solutions aligned with business needs.…I am an experienced Full Stack Developer with over 10 years of expertise in designing and developing scalable, high-performance applications primarily across financial and e-commerce domains. I specialize in Java 17, Spring Boot, microservices, and cloud-native solutions using AWS and Azure. My work involves building robust backend systems, integrating secure authentication methods such as OAuth2 and SSO, and applying JVM tuning and reactive programming techniques to enhance system performance. I have a strong passion for leveraging cutting-edge technologies like Kotlin, Golang, Apache Kafka, and Kubernetes to build event-driven, scalable systems. My experience extends to crafting CI/CD pipelines, automating deployments, and delivering cloud-native applications across multiple platforms. I am committed to agile methodologies and best practices like TDD/BDD to deliver high-quality software solutions aligned with business needs.

Sai Kommineni

Full Stack Developer, Developer, Back-End Developer, +2

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I am an experienced Full Stack Developer with over 10 years of expertise in designing and developing scalable, high-performance applications primarily across financial and e-commerce domains. I specialize in Java 17, Spring Boot, microservices, and cloud-native solutions using AWS and Azure. My work involves building robust backend systems, integrating secure authentication methods such as OAuth2 and SSO, and applying JVM tuning and reactive programming techniques to enhance system performance. I have a strong passion for leveraging cutting-edge technologies like Kotlin, Golang, Apache Kafka, and Kubernetes to build event-driven, scalable systems. My experience extends to crafting CI/CD pipelines, automating deployments, and delivering cloud-native applications across multiple platforms. I am committed to agile methodologies and best practices like TDD/BDD to deliver high-quality software solutions aligned with business needs.…I am an experienced Full Stack Developer with over 10 years of expertise in designing and developing scalable, high-performance applications primarily across financial and e-commerce domains. I specialize in Java 17, Spring Boot, microservices, and cloud-native solutions using AWS and Azure. My work involves building robust backend systems, integrating secure authentication methods such as OAuth2 and SSO, and applying JVM tuning and reactive programming techniques to enhance system performance. I have a strong passion for leveraging cutting-edge technologies like Kotlin, Golang, Apache Kafka, and Kubernetes to build event-driven, scalable systems. My experience extends to crafting CI/CD pipelines, automating deployments, and delivering cloud-native applications across multiple platforms. I am committed to agile methodologies and best practices like TDD/BDD to deliver high-quality software solutions aligned with business needs.

Available to hire

I am an experienced Full Stack Developer with over 10 years of expertise in designing and developing scalable, high-performance applications primarily across financial and e-commerce domains. I specialize in Java 17, Spring Boot, microservices, and cloud-native solutions using AWS and Azure. My work involves building robust backend systems, integrating secure authentication methods such as OAuth2 and SSO, and applying JVM tuning and reactive programming techniques to enhance system performance.

I have a strong passion for leveraging cutting-edge technologies like Kotlin, Golang, Apache Kafka, and Kubernetes to build event-driven, scalable systems. My experience extends to crafting CI/CD pipelines, automating deployments, and delivering cloud-native applications across multiple platforms. I am committed to agile methodologies and best practices like TDD/BDD to deliver high-quality software solutions aligned with business needs.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Javanese

Advanced

Work Experience

Full Stack Developer at Discover Financial Services

November 1, 2022 - Present

Engaged in full SDLC for scalable financial transaction processing applications using Scala, Spark, and AWS-native services including Lambda, S3, Kinesis, and EMR. Developed Spring Boot microservices deployed via Docker and Kubernetes on AWS ECS. Implemented secure coding practices and SSO integrations via OAuth2/SAML. Improved payment workflows with Golang, Kafka, RabbitMQ, and reactive Spring WebFlux microservices. Automated CI/CD pipelines with GitHub Actions and managed front-end components using jQuery and Angular 11. Led IAM/SSO strategy and optimized JVM performance. Migrated legacy services to Kotlin and built backend integrations with AWS services like DynamoDB and S3.

Full Stack Developer at PayPal, CA

October 31, 2022 - August 18, 2025

Built scalable cloud-native microservices with Spring Boot and AWS, incorporating JWT/OAuth2 authentication and secure REST APIs. Migrated legacy UIs to Angular 9+ with reusable components and integrated CI/CD using Jenkins and GitHub Actions. Developed batch and stream processing workflows on AWS EMR, Spark, and Hive. Automated deployments with Jenkins, Gradle, and Artifactory. Created Kotlin microservices with coroutines and managed secure token-based accesses using SSO. Developed reactive endpoints with Spring WebFlux, containerized apps with Docker and ECS, and managed infrastructure with Terraform and CloudFormation. Collaborated in Agile teams and handled multi-environment CI/CD workflows.

Full Stack Developer at eBay, CA

August 31, 2020 - August 18, 2025

Migrated legacy Java backend to Kotlin, developed Kotlin REST APIs integrated with Kafka for real-time order processing, and implemented modular front-end UI components using Angular 5/7 and Bootstrap. Built high-throughput microservices with Spring Boot and Hibernate and optimized database interactions with Oracle and DB2. Led GitHub Actions integration for Docker builds and deployments. Enhanced legacy applications with jQuery and DOJO, participated in database tuning and maintained asynchronous messaging with SQS. Practiced TDD and delivered CI/CD pipelines using Jenkins. Involved in legacy system support and production issue resolution.

Full Stack Developer at State of Minnesota, Department of Education

September 30, 2018 - August 18, 2025

Designed and developed microservices using Spring Boot with secure SSO integration via SAML and OAuth2 for government portals. Collaborated with .NET teams on Azure App Services and Blob Storage. Created backend JSP, Servlet, and Spring MVC forms, implemented FTP/SFTP workflows with AWS S3, and optimized PL/SQL queries. Used Kafka for message routing and retry. Migrated legacy reporting modules to cloud-native data stores and supported data pipelines with Scala analytics. Contributed to ReactJS-based presentation layers, and deployed microservices with Docker and AWS EC2. Developed automated CI pipelines and supported production maintenance.

Java Developer at MetLife, Inc., NY

December 31, 2016 - August 18, 2025

Followed agile Scrum methodology to deliver Java and Spring Boot applications integrating with .NET systems using OAuth2. Designed microservices with Apache Camel and JMS mirroring service bus patterns. Managed file handling with AWS S3 and Sybase backups. Supported legacy C++ services and worked extensively with Sybase ASE for transactional data processing. Developed authentication mechanisms with OAuth2 and early SSO implementations. Automated builds and deployments using Jenkins and Maven. Developed modular UI components with jQuery, Dojo, and early AngularJS implementations. Participated in root cause analysis, testing, and production support.