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I am a Full Stack Developer with 3 years of experience in building applications, specializing in frontend development with HTML, CSS, and JavaScript, and backend with Java frameworks like Spring and Hibernate, along with integrating databases using SQL and NoSQL. I have a proven track record of improving core products and building Web Assembly libraries, and I bring strong collaboration and testing discipline to ensure high-quality software. I have hands-on experience implementing and managing UI testing frameworks for web applications, including Karma, Jasmine, and Protractor for AngularJS and ReactJS, ensuring robust UI testing procedures. I have worked with AWS and containerized microservices, and I enjoy delivering responsive, scalable web solutions with a focus on developer efficiency and user experience.…I am a Full Stack Developer with 3 years of experience in building applications, specializing in frontend development with HTML, CSS, and JavaScript, and backend with Java frameworks like Spring and Hibernate, along with integrating databases using SQL and NoSQL. I have a proven track record of improving core products and building Web Assembly libraries, and I bring strong collaboration and testing discipline to ensure high-quality software. I have hands-on experience implementing and managing UI testing frameworks for web applications, including Karma, Jasmine, and Protractor for AngularJS and ReactJS, ensuring robust UI testing procedures. I have worked with AWS and containerized microservices, and I enjoy delivering responsive, scalable web solutions with a focus on developer efficiency and user experience.

RAJ HARENDRA SANGANI

Full Stack Developer, Web Developer, Programmer, +6

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I am a Full Stack Developer with 3 years of experience in building applications, specializing in frontend development with HTML, CSS, and JavaScript, and backend with Java frameworks like Spring and Hibernate, along with integrating databases using SQL and NoSQL. I have a proven track record of improving core products and building Web Assembly libraries, and I bring strong collaboration and testing discipline to ensure high-quality software. I have hands-on experience implementing and managing UI testing frameworks for web applications, including Karma, Jasmine, and Protractor for AngularJS and ReactJS, ensuring robust UI testing procedures. I have worked with AWS and containerized microservices, and I enjoy delivering responsive, scalable web solutions with a focus on developer efficiency and user experience.…I am a Full Stack Developer with 3 years of experience in building applications, specializing in frontend development with HTML, CSS, and JavaScript, and backend with Java frameworks like Spring and Hibernate, along with integrating databases using SQL and NoSQL. I have a proven track record of improving core products and building Web Assembly libraries, and I bring strong collaboration and testing discipline to ensure high-quality software. I have hands-on experience implementing and managing UI testing frameworks for web applications, including Karma, Jasmine, and Protractor for AngularJS and ReactJS, ensuring robust UI testing procedures. I have worked with AWS and containerized microservices, and I enjoy delivering responsive, scalable web solutions with a focus on developer efficiency and user experience.

Available to hire

I am a Full Stack Developer with 3 years of experience in building applications, specializing in frontend development with HTML, CSS, and JavaScript, and backend with Java frameworks like Spring and Hibernate, along with integrating databases using SQL and NoSQL. I have a proven track record of improving core products and building Web Assembly libraries, and I bring strong collaboration and testing discipline to ensure high-quality software.

I have hands-on experience implementing and managing UI testing frameworks for web applications, including Karma, Jasmine, and Protractor for AngularJS and ReactJS, ensuring robust UI testing procedures. I have worked with AWS and containerized microservices, and I enjoy delivering responsive, scalable web solutions with a focus on developer efficiency and user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

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Expert

Expert

Expert

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Expert

Intermediate

Intermediate

Language

Javanese

Advanced

English

Fluent

Work Experience

Full Stack Developer at BirlaSoftware

January 1, 2025 - Present

Migrated a legacy banking application into a cloud-based microservices architecture using Spring Boot, Spring Cloud, and Kafka, resulting in 35% faster transaction processing and 99.9% availability. Developed and maintained over 60 RESTful APIs servicing over 2 million monthly users. Integrated AWS services to manage backend scalability and monitoring, reducing latency by 40%. Improved UI performance of internal dashboard by 50%, cutting page load times in half using React.js, Redux, and Bootstrap 5. Created CI/CD pipelines with Jenkins, Docker, and Kubernetes, enabling zero-downtime deployments and reducing deployment time from hours to minutes. Coordinated Agile ceremonies, managing a large product backlog and achieving 95% on-time sprint delivery with a 14-member team. Implemented security enhancements with Spring Security and JWT tokens, reducing unauthorized access attempts by 60%. Automated over 500 test cases with JUnit and Postman, improving regression testing efficiency by 70%

Full Stack Developer at KellTon

July 31, 2023 - August 22, 2025

Led development of a scalable multi-tenant SaaS platform supporting 100K+ users and generating $1.2M revenue in its first year. Designed frontend components with AngularJS, TypeScript, and HTML5, enhancing usability scores by 30% and reducing bounce rates. Engineered backend asynchronous data flows using Java Multithreading and Kafka, increasing throughput by 45%. Optimized SQL queries and introduced MongoDB for unstructured content storage, reducing average query execution time by 55%. Built custom GraphQL APIs to reduce frontend data load size by 25%. Created CI/CD pipelines with Git, Maven, Jenkins, and Docker, cutting feature release cycles from 10 days to 3 days. Automated 600+ unit and integration tests, decreasing QA cycle time by 35% and improving release quality. Deployed application instances on Azure and AWS, leveraging autoscaling and monitoring for 99.95% uptime SLA.

Full Stack Developer at BirlaSoftware

January 1, 2015 - Present

Prepared design documentation (Sequence Diagrams, Class Diagrams) in MS Visio, reducing defects by 20%. Developed the Language Journalist Interface using AngularJS on the frontend and Node.js/HTML/CSS/JavaScript/AJAX/JSON on the backend to improve UI performance. Leveraged Bootstrap for responsive design, expanding the user base. Built an SPA with React JS, reducing load times and improving UX by about 35%. Implemented Spring MVC and a J2EE-based MVC framework to reduce development time by 20%. Deployed Spring Boot microservices in Docker on AWS, boosting productivity by 40%. Configured deployment to AWS EC2 and S3 storage, improving storage control by 25%.

Full Stack Developer at KellTon

January 1, 2021 - July 1, 2023

Developed an interactive React UI with a component-based architecture; optimized state management and user interactions for improved performance and UX. Optimized Spring MVC apps with PostgreSQL and MongoDB using Spring Data JPA; improved ORM mapping, lazy/eager loading, and query performance, reducing load times by 10%. Built RESTful APIs using Spring MVC and Spring WebFlux for efficient data communication between microservices and the front end, increasing API throughput by 30%. Implemented JMS for asynchronous messaging to enhance responsiveness and scalability. Created a GraphQL API to query data from diverse sources, enabling real-time metrics visualization via Grafana dashboards, boosting data retrieval efficiency by 40%. Implemented fine-grained authorization with Spring Security and JWT. Conducted SOAP UI testing and logged usage with Log4j, improving debugging rates. Used Git for version control, improving code management by 20%.