About Joe Caldwell | Contra Joe Caldwell

Joe Caldwell

Joe Caldwell

Web3 Dev | Smart Contract Architect | AI Integration Expert

New to Contra

Joe is ready for their next project!

Miami, USA

Work Services About

Miami, USA

Meet Joe

Followed by arafat50 u

Revolutionary auto-liquidity WITHOUT Market manipulation - zero price impact DeFi innovation. 500+ CTO hours.Deployed multiple mainnet tokens, Hybrid GPT architect creating AI personalities with 10x engagement. Smart contracts so advanced scanner sites throw warnings. Built YeetBurger: $500K+ platform in 30 days. I don't code websites, I architect Web3 empires. Meta Deviant Universe. mrbarrio.eth

Identity verifiedVetted for secure and trusted collaboration.

Rate

$100 - $150/hr

Skills and tools

Web Developer Fullstack Engineer AI Developer Blockchain Developer Smart Contract Engineer AI Engineer AI Automation Solidity Engineer

Details

Miami, USA

(GMT-5) Eastern Standard Time (EST), ±5 hours

Fluent 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

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

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