About Johnny Ha | Contra Johnny Ha

Johnny Ha

Pro

Johnny Ha

Senior Full-Stack Engineer | Web Development | AI Automation

New to Contra

Johnny is ready for their next project!

Alhambra, USA

Work Posts Services About

Alhambra, USA

Meet Johnny

Followed by Marc B, Jeremie L, and Rohan |

I’m a Senior Full-Stack Software Engineer and web development expert with a strong background in e-commerce platforms and AI-driven automation.
I’ve built and scaled production systems across both enterprise environments and fast-moving startups, owning features end-to-end from architecture and implementation to performance and long-term maintainability.

Identity verifiedVetted for secure and trusted collaboration.

Rate

$50 - $75/hr

Skills and tools

Fullstack Engineer Web Developer AI Automation Frontend Engineer Software Engineer Automation Engineer Database Engineer Database Specialist Data Engineer UX Engineer Email Automation UX Designer AI Application Developer Software Architect AI Agent Developer UI Designer Framer Developer Web Designer Framer Designer DevOps Engineer Low-Code/No-Code Developer

Visual Studio Code

Details

Alhambra, USA

(GMT-8) Pacific Standard Time (PST), ±3 hours

Professional Working Proficiency in English

Join 50k+ companies and 1M+ independents

Hire creatives Get hired

For independents

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

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 Challenges 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

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

Contact

Contact support

For independents

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

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 Challenges 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

Contact

Contact support

Company

Mission Careers Terms & conditions Privacy policy Cookie policy

© 2026 Contra.Work Inc