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We run a small but rapidly expanding web-3 studio and I’m looking for one experienced blockchain engineer I can rely on for a steady stream of work. The assignments range from writing and testing production-grade smart contracts to troubleshooting main-net deployments, building full dApps, and occasionally reviewing other developers’ code for security and gas optimisation. Because our clients come with very different ideas, you should be comfortable jumping between chains such as Ethereum, Binance Smart Chain, or even Polkadot when required, and you’ll likely touch Solidity most days, with Rust or Go popping up on some specialty jobs. If you have strengths in only one of those stacks, that’s fine—we can shape early tasks around your core expertise and then branch out together. Typical week-to-week work might involve: • Designing and unit-testing new smart contracts • Integrating on-chain logic with React or [login to view URL] front ends through [login to view URL] or [login to view URL] • Preparing migration scripts, verifying contracts on block explorers, and setting up CI for automated tests • Investigating failed transactions or odd state changes and producing a concise post-mortem for the client All code must be clean, easily auditable, and pushed to our private GitHub repo with clear commit messages. I handle project management and client communication, so you can focus on shipping solid code on time. If you like long-term collaboration, quick feedback loops, and technically interesting problems, let’s talk. Please include a link to a repo or main-net contract you’re proud of so I can see your style in action.
Project ID: 40532065
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52 freelancers are bidding on average $33 USD/hour for this job

With over a decade of experience in blockchain development, including expertise in Ethereum, I understand the importance of finding a reliable and experienced engineer for your rapidly expanding web-3 studio. My background in scaling solutions for over 1 million users and high-security FinTech systems directly applies to the complex challenges of writing production-grade smart contracts, troubleshooting main-net deployments, and building full dApps for your diverse client base. A strategic insight for ensuring project scalability is to focus on clean, easily auditable code that can be efficiently verified and tested. My past success in building Telegram Mini Apps for over 1 million users exemplifies my ability to handle high levels of complexity and deliver solid solutions on time. If you are looking for a seasoned blockchain developer who thrives on long-term collaboration and technically interesting problems, I am here to help. Let's discuss how we can work together to meet your project goals. Feel free to reach out to me to discuss the specifics of your project further.
$40 USD in 15 days
6.6
6.6

Hi,------->>>>> I am an experienced blockchain developer with strong expertise in Solidity, smart contract development, dApp integration, deployment, and security optimization. I’m comfortable working across EVM chains and can deliver clean, well-tested, production-ready code for long-term collaboration. Thanks!!
$35 USD in 40 days
2.8
2.8

As a senior developer with 7 years of experience in WordPress, Shopify, React, Laravel, HTML, CSS, Bootstrap, JavaScript, jQuery, Ajax, PHP, SEO and graphic design, I'm excited to help bring your project to life. Let's begin with a conversation. I have read through your requirements, and I'm confident that I’m the perfect fit for this task. My goal is to deliver work that exceeds your expectations. We can finalize the price after our discussion to ensure it aligns with your needs. Let's get started!
$25 USD in 1 day
0.0
0.0

Cacak, Serbia
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Member since Apr 25, 2024
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