About John Ngai | Contra John Ngai

John Ngai

Pro

John Ngai

Full stack developer ，AI Expert，Cloud Architect

1x: Hired

2: Followers

Hong Kong

Hong Kong

Meet John

John brings over 15 years of experience in data engineering, full-stack development, and AI-driven solutions. He began programming with C and C++, transitioning to Python since 2014 and JavaScript/Golang since 2016 to meet the demands of data science and full-stack development. His certifications also include PMP and CISA.

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Rate

$75 - $100/hr

Skills and tools

Game Developer Fullstack Engineer AI Engineer AI Developer AI Agent Designer

Details

Hong Kong

(GMT+8) China Standard Time (CST), ±5 hours

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For independents

Contra Pro Manage freelance projects Get verified as an expert Find jobs Get discovered Sign contracts Send invoices Commission-free payments

For companies

For companies Manage team projects Share hiring workspace Post jobs Discover contractors Sign contracts Approve invoices Global payments & tax compliance

Use Cases

For companies For freelancers For creator tools For agencies For VCs

Resources

Partner networks Advertising Hackathons Creative Human Data Human Creativity Benchmark Human in the loop API Project-based hiring calculator Guide to flexible hiring Guide for agencies Creator tools awards Customer stories Blog FAQs for freelancers FAQs for companies Referrals

Hire Freelancers

Explore all Top independents Design Engineering Marketing Music & audio Social media Video & animation Product Business consulting & HR Other

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Contact support

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