EXPLORE


4.6
4.6
100%
$25 USD / Hour
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Vietnam (2:25 PM)
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Joined on March 7, 2010
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1 Recommendation
$25 USD / Hour
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I am a Senior Web Developer with 12+ years of professional experience building, maintaining, debugging, and improving websites and web applications. I have completed many projects on Freelancer and have a proven track record working with PHP, MySQL, WordPress, Joomla, SocialEngine, HTML, CSS, JavaScript, jQuery, and custom web development. I can help with: • PHP & MySQL development • WordPress development, customization, and bug fixing • Joomla development and maintenance • SocialEngine customization and development • HTML, CSS, JavaScript, and jQuery • API integration and third-party services • Existing website maintenance and troubleshooting • Fixing PHP/MySQL errors and compatibility issues • Adding new features to existing websites • Performance improvements and code maintenance • Migrating and upgrading legacy websites I am comfortable working with both existing codebases and projects built from scratch. If you have an older PHP website that needs fixing, upgrading, or extending, I can quickly understand the existing system and work with it without requiring a complete rebuild. I value clear communication, reliable delivery, and practical solutions. For smaller tasks, bug fixes, maintenance work, or ongoing development, I can usually get started quickly. Feel free to send me your project details or the issue you are facing. I will review the requirements and let you know the best way to proceed.
Verifications
On time
100%
On budget
100%
Accept rate
91%
Repeat hire rate
17%

CraDiff Studio – Company Website Dev

Magento Affiliate Website – Full Web

Website Dev & Maintenance Dr. Kezian

CraDiff Studio – Company Website Dev

Magento Affiliate Website – Full Web

Website Dev & Maintenance Dr. Kezian
Good attitude, communication and quick understanding of the work needed to be done. Looking forward to have him work on my other site.
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The project completed accordingly with great communication between each steps.
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Excellent and professional work, he knows what hes doing.
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Excellent Worker, Very good communicating, completed job fast and with no errors. Highly Recommended.
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Excellent work and great communication skills verbally and written from Great to work with from the USA via skype or e-mail. Very talented with Facebook understanding and implementation. Right on Budjet and will offer more time just to finish the project within quoted price. Rate is very reasonable for the quality of performance. We are doing 3 phases in the project , The first 2 were very smooth and quality. We will use again in the future and Ill update for the completion of the project AK
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Experience
TECHNICAL LEAD
Jul, 2021 - Present
•
5 years, 1 month
Heatmob Co., LTD
Jul, 2021 - Present
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5 years, 1 month
Basecoin Project (May 2022 – Present) • BaseCoins is a loyalty point accumulation platform based on Binance cryptocurrency exchange technology, through the Shop-to-Earn cashback model. Dragon War Project (July 2021 – Present) • Dragon War is the Turn-based Strategy & Play to Earn Game on Solana Blockchain which combines the best gameplays and features from Heroes of Might and Magic and Axie Infinity https://dragonwar.io/
Jul, 2021 - Present
•
5 years, 1 month
TECH LEAD
Jan, 2014 - Present
•
12 years, 7 months
Inotech Vietnam,
Jan, 2014 - Present
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12 years, 7 months
• Outsourcing more than 30 projects for Lavi Industries (an Israel company based in the US) • Outsourcing more than 5 big projects: all are Korean government projects, related to urban water supply and drainage system. Create mobile games using Unity and Cocos2d-X: • Force of Saiyan https://apps.apple.com/us/app/force-of-saiyan/id1325374077 • Battle of Honor: https://play.google.com/store/apps/details?id=com.thunder.battlehonor
Jan, 2014 - Present
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12 years, 7 months
SENIOR PROGRAMMER, IOS & ANDROID, LEADER OF PROJECT
Feb, 2011 - Dec, 2013
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2 years, 10 months
Geonsoft, Gangwon
Feb, 2011 - Dec, 2013
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2 years, 10 months
• Built Pollution Source & Load Management System: A water pollution source management system that verifies errors in national pollution source survey data, builds a reliable DB, automatically calculates pollution load according to pollution source fluctuations, and supports watershed management tasks using the spatial analysis function of GIS. • Contributing to technical management of total pollution control and sustainable development of local governments
Feb, 2011 - Dec, 2013
•
2 years, 10 months
Education
Kangwon National University
2010 - 2012
•
2 years
Master of Science (M.S.) Computer Science

Korea, Republic of
2010 - 2012
•
2 years
Dai hoc Quôc Gia Tp. Hô Chí Minh
2005 - 2010
•
5 years
Bachelor's in Computer Science

Vietnam
2005 - 2010
•
5 years
Certifications
G
General Orientation Exam
F
Foundation vWorker Member