MAK CHEE SIONG

Available to hire

Net Developer with extensive experience in front-end and back-end development. NET, and SQL Server.

About

I am a Full-Stack .Net Developer with extensive experience in front-end and back-end development. I have built web applications, Windows applications, Web.API, WCF REST services using Visual Studio .Net with C#.NET, ASP.NET, ADO.NET, and SQL Server. I am proficient in XML, JSON, JQuery, Angular, Bootstrap, CSS, HTML, AJAX, and PowerShell.

I have deep experience in SQL Server, developing T-SQL queries, stored procedures, table design, and database maintenance. I excel at communicating with teammates and clients to identify objectives and gather requirements, and I work effectively both independently and as part of a team.

  • 18 years' experience
  • Joined September 2025

Industry experience

  • Software & Internet
  • Energy & Utilities
  • Professional Services
  • Manufacturing
  • Healthcare
  • Financial Services
  • Media & Entertainment
  • Education

Work experience· 27 roles

Senior Sitecore Developer / Senior Software Engineer · Orsted Malaysia SDN BHDJun 2020 – Present · 6 yrs 6 mos

Responsibilities: Build new modules for corporate websites. Support and oversee new partnership website launches. Maintain existing systems. Modernize old components. Refactor old code to make sure it is cheaper to maintain. Build backend API for mobile application. Mainly used by technicians maintaining offshore wind farms that use iPads to log day-to-day jobs.

Senior Sitecore Developer / Senior Software Engineer · ORSTED MALAYSIA SDN BHDJun 2020 – Present · 6 yrs 6 mos

Built new modules for corporate websites, supported and oversaw new partnership website launches, maintained existing systems, modernized old components, and refactored old code for maintainability. Developed backend APIs for mobile applications used by offshore wind farm technicians leveraging iPads to log daily jobs.

Senior Sitecore Developer / Senior Software Engineer · ORSTED MALAYSIA SDN BHDJun 2020 – Present · 6 yrs 6 mos

Responsible for building new modules for corporate websites, supporting and overseeing new partnership website launches, maintaining existing systems, modernizing old components, and refactoring old code to reduce maintenance costs. Built backend APIs for mobile applications used by technicians maintaining offshore wind farms, mainly accessed via iPads to log daily jobs.

Principal Software Developer · DELL GLOBAL BUSINESS CENTER SDN BHDMay 2020 – Sep 2025 · 5 yrs 5 mos
Principal Software Developer · DELL GLOBAL BUSINESS CENTER SDN BHDMay 2020 – Sep 2025 · 5 yrs 5 mos
Principal Software Developer · DELL GLOBAL BUSINESS CENTER SDN BHDMay 2020 – Sep 2025 · 5 yrs 5 mos
Senior Software Developer · SITECORE MALAYSIA SDN BHDFeb 2020 – Sep 2025 · 5 yrs 8 mos
Senior Software Developer · SITECORE MALAYSIA SDN BHDFeb 2020 – Sep 2025 · 5 yrs 8 mos

Education

Bachelor of Computer Science/Information Technology (Software Engineering) · Multimedia University2006
Bachelor of Computer Science / Information Technology (Software Engineering) · Multimedia University2006

Certifications and awards

Sitecore 10.3 Certified2024 – 2025

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