About John McLaughlin | Contra John McLaughlin

John McLaughlin

John McLaughlin

Innovative & Secure Smart Contracts Since 2017

Ready for work

John is ready for their next project!

New York, USA

Work Services About

New York, USA

Meet John

I'm John, a seasoned Blockchain Developer specializing in Solidity smart contract development for Ethereum and EVM chains. Since 2017, I've been creating secure and innovative blockchain solutions using audited libraries to ensure the highest safety standards. Let's build something revolutionary together!

Identity verifiedVetted for secure and trusted collaboration.

Featured on

Best Italian-speaking freelance Database Specialists to hire in 2026 Best OpenZeppelin freelancers to hire in 2026

Rate

$50 - $75/hr

Skills and tools

Blockchain Developer Smart Contract Engineer Fullstack Engineer Database Specialist

Details

New York, USA

(GMT-5) Eastern Standard Time (EST), ±3 hours

Fluent in English • Limited Working Proficiency in Italian

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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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