Senior Frontend Developer with 8+ years of experience building scalable, high-performance web applications using React.js and Next.js. Expert in TypeScript, Redux Toolki...
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Senior Frontend Developer with 8+ years of experience building scalable, high-performance web applications using React.js and Next.js. Expert in TypeScript, Redux Toolki...
See MoreBased in Warsaw, I build production-grade web apps, intelligent AI systems, and decentralized blockchain protocols. I bring European precision to full-stack engineering a...
See MoreI am an executive-level Solution Architect with over 14 years of experience designing high-performance technology ecosystems for fintech, compliance, and healthcare. I le...
See MoreHi, I’m Arista Indrajaya, a software developer focusing on Web3, API design, and secure cloud-based tooling. I enjoy turning complex requirements into scalable solutions ...
See MoreDynamic Senior Backend Engineer with over 8 years of expertise in blockchain integrations and wallet infrastructure. Proven track record in designing and deploying scalab...
See MoreHello, I'm Neo Pholushe, a blockchain engineer specializing in high-performance Solana arbitrage bots using Rust and Go. I design and optimize cross-protocol trading stra...
See MoreI am a Senior Blockchain Developer with 5 years of specialized experience in blockchain technology and over 10 years of full-stack development, including expertise in Gol...
See MoreHi, I'm Nabeel Javed, a full stack engineer with 5 years of experience building cloud-native, high-throughput, mission-critical systems. I enjoy crafting scalable backend...
See MoreHi, I'm Muhammad Usama Saleem, a software engineer with over 4 years of experience building scalable, high-performance web applications. I'm proficient in Next.js, React....
See MoreHi, Im Anastasiia, I’m a Game & Gambling Software Developer with strong experience in online casino games, blockchain projects, and custom iGaming solutions. I work as pa...
See MoreI'm a Senior Software Engineer with 10+ years of experience building backend and blockchain systems in fast-paced environments. I specialize in Solidity, TypeScript, Node...
See MoreI am an experienced software engineer with a passion for building high-performance applications. My journey in software development spans over seven years, primarily focu...
See MoreWe have over 14,500 Blockchain Developers who've worked in many different industries and cover various styles and skillsets.
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Reviews
“Omais is a highly skilled and reliable freelancer who did a fantastic job on my Web App project. I trusted him with complex technical tasks, including working directly within a Windows Server VPS environment, and he handled everything seamlessly. He is professional, efficient, and delivers great results. I highly recommend...”
Julio @ Two Brothers Flooring, LLC
Jul 13, 2026
“Crystal‑INC was a transformative force in my creative and professional journey. The company brought clarity, structure, and artistic excellence to every project we touched. Their ability to merge luxury editorial aesthetics with precise engineering, corporate discipline, and emotional storytelling is unmatched.Crystal‑INC...”
H.E.R1 @ Crystal -INC
Jul 6, 2026
“Adam did a phenomenal job building DIMCPrep. He expertly managed the entire development process to deliver a flawless product. We now have a robust platform housing over 1,400 questions that allows candidates to track their progress effectively. His skill and attention to detail turned our vision into a reality, and we are...”
Sabrina @ DIMCPrep
Jun 24, 2026
“I worked with Daniel as one of our lead engineers on a military FPV drone training simulator built in Unreal Engine 5, a high-stakes project that needed to go from rough prototype to demo-ready in seven weeks for a live demonstration at IITSec 2025. The biggest technical win on the project was the drone flight dynamics...”
Robert @ Good Game Devs
Jun 1, 2026
“Great experience working with him. I explained what I wanted for my app and he not only got it but exceeded my expectation. The final result was better than what I had in mind. Super easy to work with.”
Michael @ MH LLC
May 24, 2026
“I had the pleasure of working with Zhenchang and was consistently impressed by his technical expertise, professionalism, and strong sense of ownership. He delivers high-quality, scalable solutions, communicates effectively, and collaborates exceptionally well across teams. Zhenchang is proactive, reliable, and quick to...”
Joseph @ Cody Solutions
May 22, 2026

Clients Rate Twine Ethereum Blockchain Developers 5.0 / 5.0
on average across 8383 reviews
3–5 minutes. Tell us about your project, your timeline, and how you want experts to contact you.
Within 24 hours, you'll see a shortlist of vetted Blockchain Developers matched to your project.
Flexible payments on your terms, bill experts directly or use the Twine vault for added security.
Transparent rates, no hidden markup, and a payment path for every need.
Agencies bury a 20–40% markup inside the retainer, you never see it. On Twine, you set the price and you see the platform fee as a separate, explicit line. No surprises at checkout.
Prefer your own payment flow? Pay your expert outside Twine, incurring no commission fees. Most useful for ongoing or trusted relationships.
Funds are held in escrow and only released when you approve the deliverables. If the work isn't right, your money doesn't move. 10% commission on payments up to $10,000, just 5% on anything above.
Pick the role, the experience level and how long you need. We’ll show you what similar projects have cost on Twine. It’s a guide, not a quote.
Estimates based on research on US and European freelancers. Actual budget is set by you and agreed with your expert before any work begins.
ESTIMATED RANGE
$6,400 – $17,000
Full possible range for a mid-level Blockchain Developer over 2–4 weeks
Common questions answered before you post a project.
An Ethereum Blockchain Developer specializes in creating and implementing smart contracts and decentralized applications (dApps) on the Ethereum blockchain. They work with programming languages like Solidity to build and maintain blockchain-based applications, ensuring security and efficiency. Their responsibilities often include:
Ultimately, they contribute significantly to the growing ecosystem of Ethereum, driving innovation and functionality within the blockchain space.
Exceptional Ethereum Blockchain Developers possess a unique blend of technical skills and personal attributes that distinguish them in the marketplace. Key qualities include:
These qualities enable them to deliver high-quality solutions and adapt to evolving project requirements.
Typical day rates for Blockchain Developers vary by experience level:
These are indicative ranges based on Twine project data. Final budgets depend on project scope and are agreed directly with your freelancer.
To recognize the perfect Ethereum Blockchain Developer, consider the following criteria:
By evaluating these aspects, you can identify a developer who is well-suited to meet your project demands.
During an interview with an Ethereum Blockchain Developer, consider asking the following key questions:
These questions will help you assess their technical knowledge, problem-solving skills, and project experience.
To hire an Ethereum Blockchain Developer, start by identifying your project requirements and desired skills. Consider the following steps:
By following these steps, you can ensure you select a developer who aligns with your project’s goals.
Hiring a freelance Ethereum Blockchain Developer offers flexibility and often lower costs, allowing direct communication with the developer. In contrast, working with an agency provides a team of experts, ensuring diverse skills and resources. Key differences include:
Choosing between the two depends on your project’s complexity and your budget.
An effective project brief for an Ethereum Blockchain Developer should include:
A well-defined brief helps attract qualified candidates and sets clear expectations from the start.
Hiring on Twine is simple.
Post your project and meet your expert within 24 hours. Over 45,000+ high growth companies that trust Twine.