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I am Kaung Sett Hein, a results-driven Full Stack / Backend Developer with over 5 years of experience building scalable, user-centric web applications. I specialize in Java (Quarkus), .NET, C#, Vue.js and React.js, and I have a strong background in PostgreSQL and test-driven development. I thrive in fast-paced agile environments, collaborate cross-functionally, and continuously optimize performance and reliability through automated testing and CI/CD pipelines.…I am Kaung Sett Hein, a results-driven Full Stack / Backend Developer with over 5 years of experience building scalable, user-centric web applications. I specialize in Java (Quarkus), .NET, C#, Vue.js and React.js, and I have a strong background in PostgreSQL and test-driven development. I thrive in fast-paced agile environments, collaborate cross-functionally, and continuously optimize performance and reliability through automated testing and CI/CD pipelines.

Kaung Sett Hein

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

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I am Kaung Sett Hein, a results-driven Full Stack / Backend Developer with over 5 years of experience building scalable, user-centric web applications. I specialize in Java (Quarkus), .NET, C#, Vue.js and React.js, and I have a strong background in PostgreSQL and test-driven development. I thrive in fast-paced agile environments, collaborate cross-functionally, and continuously optimize performance and reliability through automated testing and CI/CD pipelines.…I am Kaung Sett Hein, a results-driven Full Stack / Backend Developer with over 5 years of experience building scalable, user-centric web applications. I specialize in Java (Quarkus), .NET, C#, Vue.js and React.js, and I have a strong background in PostgreSQL and test-driven development. I thrive in fast-paced agile environments, collaborate cross-functionally, and continuously optimize performance and reliability through automated testing and CI/CD pipelines.

Available to hire

I am Kaung Sett Hein, a results-driven Full Stack / Backend Developer with over 5 years of experience building scalable, user-centric web applications. I specialize in Java (Quarkus), .NET, C#, Vue.js and React.js, and I have a strong background in PostgreSQL and test-driven development.

I thrive in fast-paced agile environments, collaborate cross-functionally, and continuously optimize performance and reliability through automated testing and CI/CD pipelines.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Burmese

Fluent

English

Fluent

Japanese

Intermediate

Work Experience

Backend Developer at Phinion

November 1, 2024 - Present

Developed and maintained backend services for a large-scale municipal government housing platform using Java (Quarkus, Hibernate), ensuring reliability, scalability, and integration with multiple systems. Built and optimized PostgreSQL queries with CTEs, and designed email and messaging features via SMTP and Microsoft Graph API. Applied Test-Driven Development (TDD) with JUnit 5 and Mockito, and automated tests integrated into Docker, Maven builds, and GitLab CI/CD pipelines to enable stable releases.

Full Stack Developer at Technopro Engineering

May 1, 2024 - September 30, 2025

Led phase one testing for a data analysis application for Hitachi Machinery, covering 80% of the work using C# and .NET to ensure timely and accurate delivery of testing reports. Enhanced data accuracy by 30% through SQL query optimization and MySQL data table management. Improved project efficiency by 20% through streamlined backend data handling and workflow optimization. Contributed to both front-end and back-end components using React.js, Redux, and TypeScript.

Full Stack Developer (Hybrid) at Fusion Solution Co., Ltd

August 1, 2022 - September 30, 2025

Led UI/UX design using Vue.js and JavaScript for three web applications, boosting user engagement by 25% and optimizing data flow through RESTful API integration with JWT Authentication and OAuth. Enhanced data retrieval efficiency by 20% and strengthened backend infrastructure by developing APIs with C#, ASP.NET Core, and Entity Framework Core. Delivered QA through test case writing and manual testing, reducing system bugs by 15%. Collaborated with cross-functional teams in an Agile environment.

Intern at Thorium Co., Ltd

June 1, 2020 - September 30, 2025

Assisted senior developers in designing wireframes and relational database models (MSSQL, PostgreSQL), supporting project planning and application design. Developed internal applications using C#, ASP.NET MVC, JavaScript, and React.js, improving efficiency and maintainability. Built responsive user interfaces with HTML, CSS, Bootstrap, and jQuery, enhancing the company’s web portfolio and user experience. Applied OOP principles and architectural patterns (MVC, MVVM) to improve code quality and long-term maintainability.

Backend Developer at Phinion

November 1, 2024 - Present

Developed and maintained backend services for a large-scale municipal government housing platform using Java (Quarkus, Hibernate), ensuring reliability, scalability, and integration with multiple systems. Built and optimized PostgreSQL queries with CTEs, improving performance and data handling. Designed and integrated email and messaging features via SMTP and Microsoft Graph API. Applied Test-Driven Development (TDD) with JUnit 5 and Mockito, ensuring maintainable, high-quality code. Automated testing integrated into Docker, Maven builds and GitLab CI/CD pipelines, enabling stable releases.

Full Stack Developer at Technopro Engineering

May 31, 2024 - September 30, 2025

Led phase one testing for a data analysis application for Hitachi Machinery, covering 80% of the work using C# and .NET, to ensure timely and accurate delivery of testing reports. Enhanced data accuracy by 30% through optimizing SQL queries and managing MySQL data tables. Improved project efficiency by 20% by streamlined backend data handling and workflow optimization. Utilized proficiency in React.js, Redux, TypeScript to strengthen full-stack development capabilities, contributing to both front-end and back-end components in cross-functional projects.

Full Stack Developer at Fusion Solution Co., Ltd

August 31, 2022 - September 30, 2025

Led UI/UX design using Vue.js and JavaScript for three web applications, boosting user engagement by 25%, and optimized data flow through RESTful API integration with JWT Authentication and OAuth. Enhanced data retrieval efficiency by 20% and strengthened backend infrastructure by developing APIs with C#, ASP.Net Core, and Entity Framework Core (EF Core). Delivered quality assurance through test case writing and manual testing, reducing system bugs by 15%. Collaborated with cross-functional teams, improving project delivery in an agile environment.

Intern at Thorium Co., Ltd

June 30, 2020 - September 30, 2025

Assisted senior developers in designing wireframes and relational database models (MSSQL, PostgreSQL), supporting project planning and application design. Developed internal applications using C#, ASP.NET MVC, JavaScript, and React.js improving efficiency and maintainability. Built responsive user interfaces with HTML, CSS, Bootstrap, and jQuery, enhancing the company’s web portfolio and user experience. Applied OOP principles and architectural patterns (MVC, MVVM) to improve code quality and long-term maintainability.

Backend Developer at Phinion, Netherlands (Remote)

November 1, 2024 - November 2, 2025

Developed and maintained backend services for a large-scale municipal government housing platform using Java (Quarkus, Hibernate), ensuring reliability, scalability, and integration with multiple systems. Built and optimized PostgreSQL queries with CTEs, improving performance and data handling. Designed and integrated email and messaging features via SMTP and Microsoft Graph API. Applied Test-Driven Development (TDD) with JUnit 5 and Mockito, ensuring maintainable, high-quality code. Automated testing integrated into Docker, Maven builds and GitLab CI/CD pipelines, enabling stable releases.

Full Stack Developer at Technopro Engineering, Japan

May 1, 2024 - May 1, 2024

Full Stack Developer (Hybrid) at Fusion Solution Co., Ltd, Thailand

August 1, 2022 - August 1, 2022

Intern at Thorium Co., Ltd, Myanmar

June 1, 2020 - June 1, 2020

Assisted senior developers in designing wireframes and relational database models (MSSQL, PostgreSQL), supporting project planning and application design. Developed internal applications using C#, ASP.NET MVC, JavaScript, and React.js improving efficiency and maintainability. Built responsive user interfaces with HTML, CSS, Bootstrap, and jQuery, enhancing the company’s web portfolio and user experience. Applied OOP principles and architectural patterns (MVC, MVVM) to improve code quality and long-term maintainability.