Hantsy Bai - Self-employed Consultant And Freelancer at Independent Consultant

Hantsy Bai

Self-employed Consultant And Freelancer at Independent Consultant

Guangzhou City, Guangdong Province, China

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Summary

🤩

Rockstar

🎓

Top School

Hantsy Bai is a seasoned software engineer and independent consultant with over 20 years in the industry and 14 years of active GitHub-backed development, specializing in migrating monoliths to microservices and designing reactive, REST/GraphQL architectures. He blends hands-on full-stack implementation (Spring Boot/WebFlux, Quarkus, Angular/Next.js) with pragmatic engineering practices like TDD, CI/CD automation, and containerization. An active open-source contributor, he has improved core projects such as Netflix DGS and Jakarta EE CargoTracker and won the 2012 JBoss Community Recognition Award for his community work. As an agile programming coach and technical blogger, he helps teams adopt scalable patterns (DDD, CQRS, EDA) while also contributing translations and reviews for influential books and courses. Based in Guangzhou, he combines deep backend expertise with front-end fluency, and a pragmatic habit of turning complex distributed-system challenges into maintainable, well-tested solutions.

14 years of coding experience

11 years of employment as a software developer

B.S. Food Science and Technology, B.S. Food Science and Technology at Jiangsu University

Chinese, English

Stackoverflow

Stats

8,687reputation

1.2mreached

192answers

194questions

Badges

spring

top-5%

spring-boot

top-5%

spring-webflux

top-5%

Github Skills (58)

jakartaee10

angular10

javascript10

bootstrap10

apidoc10

javaee10

testing10

user-authentication10

authentication10

spring-webflux10

spring-security10

spring-mvc10

wpgraphql10

mongodb-database10

java10

Programming languages (23)

C#PowerShellJavaC++CSSPugCScala

Github contributions (5)

hantsy/spring-webmvc-jwt-sample

Apr 2018 - Sep 2021

Secures REST APIs with Spring Security and JWT Token based Authentication

Role in this project:

Back-end Developer

Contributions:4 reviews, 37 commits, 12 PRs in 3 years 5 months

Contributions summary:Hantsy primarily contributed to the back-end of the Spring Boot and JWT authentication sample. They focused on implementing features and refactoring code related to user authentication, data auditing, and API endpoints. They also updated the project dependencies and configurations, ensuring compatibility with newer Spring Boot versions and addressing specific issues, including the addition of brand filtering to endpoints.

spring-boottoken-based-authenticationtoken-basedspring-data-restsecurity

hantsy/angularjs-springmvc-sample

Jun 2014 - Feb 2020

A RESTful sample using AnguarJS/Bootstrap as frontend and Spring MVC as REST API producer

Role in this project:

Front-end Developer

Contributions:129 commits, 9 PRs, 101 pushes in 5 years 9 months

Contributions summary:Hantsy's commits primarily focus on front-end development within an AngularJS and Spring MVC project. They made changes to the `defects.html`, `main.html`, `home.html`, and `posts/home.html` files, indicating work on the user interface and application layout. The contributions involve the implementation of new features and overall cleaning of the existing code.

spring-bootapirestfulanguarjsspring-mvc

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