Senior Full Stack Developer

Hi, I'm Saowapan K.(May)

14+ Years of Engineering Excellence. Senior Full Stack Engineer specializing in High-Traffic E-commerce and Modern Web Architectures. From React/Next.js to Custom WordPress & Shopify Engines, I build products that scale. Currently based in the UK, delivering technical leadership for global brands. Full UK Right to Work.

Get In TouchGitLabGitHub

Location

London / Kent, United Kingdom

Experience

10+ Years

Working Style

Remote · International Teams / Hybrid

Technical Skills

Backend

Node.jsPHP (WordPress CMS)Java (Spring Boot)C#

Frontend

ReactNext.js (App Router)TypeScriptJavaScript (ES6+)Angular 4HTML5CSS3Tailwind CSSBootstrap

E-Commerce & CMS

WordPress (Custom Theme Development)Shopify (Liquid)Amazon Product Advertising APIWooCommerce

DevOps & Tools

AWS (EC2, S3, RDS, Amplify)CI/CDVercelDockerGitUnit Testing (Jest / React Testing Library)MySQLPostgreSQL

Mobile

Flutter (Dart)

Work Experience

March 2026 - Present

Senior Full Stack Consultant / Contract (GTBCO UK, XCM LTD UK & Independent Projects)

XCM LTD. UK · UK - Remote

  • Leading the technical architecture for bespoke E-commerce solutions, specialising in Custom WordPress Theme development and Shopify (Liquid) customisation.
  • Amazon API Integration: Architected a sophisticated data-sync engine using the Amazon Product Advertising API, managing inventory and pricing for thousands of SKUs across high-traffic platforms.
  • Focusing on modernising legacy systems using React, Next.js, Node, Nest.js, Express.js and TypeScript
March 2024 - March 2026

Full Stack Developer

XCM LTD. · UK - Remote

  • Architecting and building a mortgage comparison and lead generation engine
  • Backend: Designing and implementing APIs using Node.js and PostgreSQL
  • Frontend: Developing a high-performance, responsive user interface using Next.js and Tailwind CSS
January 2019 - February 2024

Lead Engineer / Senior Full Stack Developer

GTBCO LTD. · UK - Remote

  • Built and scaled content platforms to over 2 million monthly visitors
  • Mobile Development (Flutter): Built a native mobile application using Flutter (Dart), focusing on state management, smooth UI transitions, and integration with REST APIs
  • UI/UX Implementation: Designed responsive, user-friendly interfaces using modern CSS frameworks and JavaScript
  • API Integration: Designed efficient data fetching strategies to connect the frontend with custom WordPress REST APIs and MySQL databases
December 2015 - January 2018

Senior Front-End Developer

Medical Departures · Remote (International Team)

  • Worked 100% remotely in an international team, using English daily for all meetings and technical documentation
  • Developed and maintained the booking platform using PHP (Zend & Laravel), Google AMP, Angular 4, and Vanilla JavaScript
  • Conducted code reviews to ensure software reliability and quality
March 2014 - November 2015

Web Developer

Invisible Ink · Remote

  • Developed custom WordPress websites, themes, and plugins
  • Worked closely with designers to translate designs into responsive, production-ready code
  • Ensured cross-browser compatibility and mobile performance

Earlier Career

Venda Software

UK Company

Built high-end e-commerce websites for major brands like Wickes and Boohoo

Digital Alchemy

Australian Company

Developed marketing automation pages using PHP

GITS

Thai Government

Developed Java web applications using Spring Framework and .Net C#

Education

B.Sc. Computer Science (English Program)

King Mongkut's University of Technology Thonburi (KMUTT)