I am a passionate software engineer with a keen interest in artificial intelligence and blockchain technologies. My goal is to leverage my skills to create innovative sol...
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I am a passionate software engineer with a keen interest in artificial intelligence and blockchain technologies. My goal is to leverage my skills to create innovative sol...
See MoreI am an AI Developer and Data Scientist with hands-on experience in machine learning, natural language processing, speech technologies, and computer vision. I build end-t...
See MoreI am an AI/ML Developer with over 3 years of experience building intelligent solutions that bridge advanced research with real-world applications. My background spans mac...
See MoreI am a recent engineering graduate with a strong foundation in blockchain technologies and hands-on experience with system troubleshooting, debugging, and technical suppo...
See MoreI am a motivated Full Stack Developer with a robust background in web, mobile, and desktop development. Proficient in JavaScript, Java, and Python, I have a strong passio...
See MoreI am a second-year engineering student specializing in computer engineering, passionate about computing and emerging technologies. I am skilled in programming and compute...
See MoreWe have over 14,500 Blockchain Developers who've worked in many different industries and cover various styles and skillsets.
Start your searchProjects that brands and startups post most often.
End-to-end build of a v1 product: front-end, back-end, and deployment.
Build your MVPShort engagement to clear a backlog of bugs and stabilise a release.
Stabilise your releaseAdd LLM-powered features to your product, copilots, semantic search, or summarisation.
Integrate AIReact Native or Flutter app for iOS and Android from your existing spec.
Build your appDevelopment specialisms and the cross-functional roles you'll often hire alongside.
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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 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 only. Actual budget is set by you and agreed with your expert before any work begins.
ESTIMATED RANGE
$1,900 – $5,200
Full possible range for a mid-level Blockchain Developer over 2–4 weeks
Common questions answered before you post a project.
A Blockchain Developer is a specialized software engineer focused on developing and implementing blockchain technology solutions. Their primary responsibilities include designing blockchain protocols, crafting smart contracts, and building decentralized applications (dApps). They also work on optimizing existing blockchain networks for efficiency and security. In addition, they often collaborate with other developers, project managers, and stakeholders to ensure that the technology aligns with the business objectives. Blockchain Developers are skilled in various programming languages, including Solidity and JavaScript, and possess a deep understanding of cryptography, data structures, and peer-to-peer networking.
Exceptional Blockchain Developers possess a unique blend of technical and soft skills. Key qualities include:
Moreover, a passion for innovation and continuous learning is essential, as the blockchain landscape is dynamic and ever-changing.
Typical day rates for Blockchain Developers in Tunisia 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 identify the perfect Blockchain Developer in Tunisia, focus on a few key aspects. First, assess their technical expertise by reviewing their portfolio and previous projects, ensuring they have relevant experience in your specific area of interest. Look for candidates who demonstrate a solid understanding of blockchain technology and its applications. Next, evaluate their communication skills, as effective collaboration is crucial. Conduct interviews to gauge their problem-solving abilities and how they approach challenges. Lastly, seek out references or testimonials from past clients to gain insight into their work ethic, reliability, and overall performance.
During a Blockchain Developer interview, consider asking the following key questions:
These questions will help you assess their technical knowledge, practical experience, and commitment to professional growth.
Hiring a Blockchain Developer in Tunisia involves several key steps to ensure you find the right fit for your project. Start by defining your project requirements, including the specific skills and experience you need. Utilize platforms like Twine to post your job listing, detailing the project scope, timeline, and budget. Leverage local professional networks or social media groups focused on technology in Tunisia. Conduct thorough interviews and technical assessments to gauge candidates' expertise. During the selection process, consider not only technical skills but also cultural fit and communication abilities, as these are crucial for successful collaboration.
Hiring a freelance Blockchain Developer offers flexibility and direct communication, often at a lower cost. Freelancers typically have specialized skills and can focus solely on your project. However, they may lack the resources for larger projects and might juggle multiple clients. On the other hand, working with an agency provides access to a broader range of expertise and resources, ideal for comprehensive projects. Agencies often have structured processes and support teams, but they tend to charge higher rates. Ultimately, the choice depends on your project scope, budget, and desired level of collaboration.
A comprehensive project brief for a Blockchain Developer should include the following elements:
This clarity will help attract suitable candidates and streamline the hiring process.
Hiring on Twine is simple.
Post your project and meet your expert within 24 hours. Over 45,000+ high growth companies that trust Twine.