I am a skilled Full Stack Developer with over 5 years of experience building scalable, cloud-native applications using technologies such as Java, Spring Boot, Node.js, and React.js. I specialize in creating RESTful and GraphQL APIs, integrating real-time data, and deploying services on AWS. I thrive in Agile team environments and am committed to delivering reliable, test-driven software that enhances e-commerce and financial platforms. I have extensive expertise in automating CI/CD pipelines, building secure and performant frontends, and leveraging cloud infrastructure tools like Kubernetes, Terraform, and AWS Lambda. My work experience includes developing microservices architecture, event-driven processing, and complex analytics solutions, always focusing on enhancing system scalability, security, and user experience.

Keval Makadiya

I am a skilled Full Stack Developer with over 5 years of experience building scalable, cloud-native applications using technologies such as Java, Spring Boot, Node.js, and React.js. I specialize in creating RESTful and GraphQL APIs, integrating real-time data, and deploying services on AWS. I thrive in Agile team environments and am committed to delivering reliable, test-driven software that enhances e-commerce and financial platforms. I have extensive expertise in automating CI/CD pipelines, building secure and performant frontends, and leveraging cloud infrastructure tools like Kubernetes, Terraform, and AWS Lambda. My work experience includes developing microservices architecture, event-driven processing, and complex analytics solutions, always focusing on enhancing system scalability, security, and user experience.

Available to hire

I am a skilled Full Stack Developer with over 5 years of experience building scalable, cloud-native applications using technologies such as Java, Spring Boot, Node.js, and React.js. I specialize in creating RESTful and GraphQL APIs, integrating real-time data, and deploying services on AWS. I thrive in Agile team environments and am committed to delivering reliable, test-driven software that enhances e-commerce and financial platforms.

I have extensive expertise in automating CI/CD pipelines, building secure and performant frontends, and leveraging cloud infrastructure tools like Kubernetes, Terraform, and AWS Lambda. My work experience includes developing microservices architecture, event-driven processing, and complex analytics solutions, always focusing on enhancing system scalability, security, and user experience.

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Experience Level

Expert
Expert
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Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

Javanese
Fluent

Work Experience

Java Full Stack Developer at Oracle
May 1, 2020 - Present
Engineered end-to-end enterprise applications using Java, Spring Boot, and Spring Cloud, applying domain-driven design (DDD) to decompose monoliths into scalable microservices and reduce deployment friction across environments. Built responsive, accessible UI components using React, Redux Toolkit, Tailwind CSS, and React Router, optimizing page load speed and maintaining cross-browser compatibility. Designed and implemented RESTful and reactive APIs with Spring WebFlux, integrating robust security layers via Spring Security, JWT, and OAuth2 protocols for controlled access management. Leveraged PostgreSQL for complex data modeling and performance tuning. Utilized Apache Kafka and Kafka Streams for asynchronous event-driven processing to enhance scalability. Implemented role-based access control (RBAC) and audited API logs to align with compliance standards such as SOC 2 and HIPAA. Containerized services using Docker and Kubernetes and automated CI/CD pipelines with Azure DevOps, GitHub
Full Stack Developer at Shopify
July 1, 2023 - Present
Designed and developed microservices with Java, Spring Boot, and JPA/Hibernate to support merchant onboarding, order processing, and payment workflows in a multi-tenant e-commerce system. Created scalable RESTful and GraphQL APIs with Node.js to connect internal portals and third-party integrations. Developed Apache Spark jobs over Kafka Streams for near real-time analytics and compliance dashboards. Delivered responsive UI components using Next.js, React.js, TypeScript, and CSS for operational monitoring. Modeled metadata in MySQL and MongoDB, automated infrastructure provisioning with Terraform and GitLab CI, and handled asynchronous tasks with RabbitMQ. Built CI/CD pipelines with Jenkins, Dockerized microservices, and deployed on AWS EKS using Helm charts supporting blue-green deployments. Integrated AWS Lambda, S3, and SQS for event-driven processing to improve scalability and responsiveness. Implemented centralized logging with ELK Stack and CloudWatch, developed automated testing
Full Stack Developer at Fiserv
June 30, 2023 - August 25, 2025
Developed full-stack financial applications using Java 8/11 and Spring Boot, integrating REST and GraphQL APIs to improve platform responsiveness by 35%. Built dynamic, component-based UIs with React.js, Redux, Bootstrap, jQuery, and TypeScript for responsive, cross-browser compatible modules. Implemented core business logic for transaction services, audit logging, and reporting with Spring Boot, Hibernate, and JPA, ensuring accurate financial processing. Enhanced security with Spring Security and JWT-based authentication, reducing vulnerabilities. Developed and maintained REST APIs in Spring Boot and Node.js for microservices and third-party integrations. Utilized Node.js for asynchronous workflows like payment processing and notifications to increase transaction speed. Integrated Apache Kafka for real-time streaming in alert systems and payment tracking. Wrote unit and integration tests achieving 80%+ code coverage, reducing bugs by 20%. Managed relational and NoSQL databases with Po

Education

Bachelors of Science at California State University, Northridge
January 1, 2020 - May 31, 2024
Bachelor of Science in Computer Science at California State University, Northridge
January 11, 2030 - May 1, 2024

Qualifications

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Industry Experience

Software & Internet, Financial Services, Healthcare, Professional Services, Government, Retail