Available
Alex Morgan
London, UK
Blockchain Developer
Design, Illustration
Award-winning creative with a decade of experience across brands and startups.
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Every Blockchain Developer's portfolio and application is manually reviewed by our Customer Success team. You only see vetted matches.
We 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 83 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
€5,000 – €13,500
Full possible range for a mid-level Blockchain Developer over 2–4 weeks
Common questions answered before you post a project.
A Blockchain Developer specializes in creating and implementing digital solutions using blockchain technology. Their primary responsibilities include designing blockchain protocols, developing smart contracts, and building decentralized applications (dApps). They are proficient in programming languages like Solidity, Java, and Python, and have a strong understanding of cryptography and distributed ledger technology. Additionally, Blockchain Developers work on improving the security and efficiency of blockchain systems and often collaborate with other IT professionals to integrate blockchain solutions into existing infrastructures. Their expertise is essential for businesses looking to harness blockchain for various applications, including finance, supply chain management, and digital identity verification.
Exceptional Blockchain Developers possess a unique set of qualities that differentiate them from their peers. Firstly, they have a deep understanding of blockchain technology and its applications, allowing them to innovate and solve complex problems. Strong analytical skills enable them to assess challenges critically and devise effective solutions. Additionally, they demonstrate excellent communication abilities to articulate technical concepts to non-technical stakeholders. A passion for continuous learning is also crucial, given the rapidly evolving nature of blockchain technology. Lastly, strong project management skills help them to deliver projects on time and within budget while maintaining high-quality standards.
Typical day rates for Blockchain Developers in France 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 Blockchain Developer for your needs in Toulouse, start by assessing their technical skills and experience relevant to your project. Review their portfolio to evaluate previous work and success stories. Look for developers who demonstrate a strong understanding of the specific blockchain technology you intend to use. Additionally, consider their problem-solving abilities and how they approach challenges. Conduct interviews to gauge their communication skills and cultural fit within your team. Checking references and client reviews can also provide insights into their work ethic and reliability, ensuring you make an informed hiring decision.
During an interview with a Blockchain Developer, consider asking the following key questions:
These questions will help you assess their technical knowledge, problem-solving skills, and commitment to ongoing learning, ultimately guiding your hiring decision.
Hiring a Blockchain Developer in Toulouse, France, involves several key steps. First, clearly define your project requirements, including the specific blockchain technology you want to use and the skills necessary for the job. Next, utilize platforms like Twine to post your job listing, making sure to include detailed descriptions of your project, timelines, and budgets. You can also attend local tech meetups or conferences to network with potential candidates. Screening applicants should involve reviewing portfolios, conducting interviews, and assessing their technical skills through practical tests. Finally, ensure you establish clear communication channels and expectations to facilitate a successful collaboration.
When hiring a freelance Blockchain Developer, you generally benefit from more flexibility, lower costs, and the ability to build a direct working relationship with the developer. Freelancers often have specialized skills and can adapt quickly to project needs. In contrast, working with an agency provides access to a broader range of expertise and resources, as agencies typically have a team of developers with diverse skills. Agencies can also offer more reliability and continuity, especially for larger projects that require ongoing support. Ultimately, the choice depends on your project requirements, budget, and desired level of collaboration.
A well-crafted project brief or job description for a Blockchain Developer should contain several key elements:
Providing detailed information helps attract the right candidates and sets clear expectations for the project.
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