As Project Manager at Playtech Studios (playtechstudios.com), I led the development of 10+ casino and casual games from concept to launch, collaborating with multidiscipl...
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As Project Manager at Playtech Studios (playtechstudios.com), I led the development of 10+ casino and casual games from concept to launch, collaborating with multidiscipl...
See MoreI'm Murtaza Khan, a Full Stack Engineer with a passion for building scalable, reliable systems. I enjoy turning complex problems into clean, efficient solutions, whether ...
See MoreI am a Software Engineer with over five years of experience developing scalable, user-friendly, and accessible web applications with robust backend infrastructures. I hav...
See MoreI am a multidisciplinary software engineer specializing in virtual and augmented reality. I am comfortable working on all aspects of immersive software development, in...
See MoreI'm an experienced Blockchain Developer based in London, United Kingdom. I specialise in 3D Model, Blocks UI, and Ethereum and enjoy helping teams turn ideas into polishe...
See MoreVersatile developer with attention to detail, 25 years experience and ability to sit across entire stack.
See MoreSoftware Engineer with 4+ years of professional experience across finance and cryptocurrency, with a long-standing interest in startups and early-stage products. I’m incr...
See MoreI am Gopinath Emmidisetty, a British citizen with a strong foundation in software development and a track record as a QA leader who builds automation frameworks, ensures ...
See MorePrincipal Engineer and Technical Lead with 15+ years delivering full-stack, cloud-native platforms end-to-end. Experienced in architecture governance, multi-tenant SaaS d...
See MoreI'm Mars Robertson, a Senior Full Stack Engineer with a frontend focus. I specialise in React, Next.js, TypeScript, and modern UI systems, delivering high-quality, perfor...
See MoreHi there, I'm Giacomo Sorbi, a senior full stack engineer with 20+ years of software development experience. I specialize in modern web technologies including React, Node...
See MoreHi, I'm Usman Baloch, a Senior Software Engineer specializing in building Web3 and AI applications. With a background as a CTO and founding engineer at several companies,...
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
£4,100 – £11,000
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 the development and implementation of blockchain technology. They design and build blockchain protocols, crafting the architecture of blockchain systems and smart contracts. Their responsibilities include:
These experts are instrumental in industries ranging from finance to supply chain, helping businesses leverage blockchain for enhanced security and efficiency.
Exceptional Blockchain Developers possess a unique blend of technical expertise and soft skills. They are proficient in programming languages such as Solidity, JavaScript, and Python. In addition to technical skills, look for qualities such as:
These attributes help developers deliver high-quality solutions and contribute positively to your project’s success.
Typical day rates for Blockchain Developers in United Kingdom 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, start by assessing their portfolio for relevant projects that demonstrate their skills. Look for developers who have experience in your specific industry or technology stack. Conduct interviews to evaluate their problem-solving approach and communication skills. Additionally, consider their cultural fit with your team and their ability to work collaboratively. Seeking testimonials or reviews from previous clients can also provide valuable insights into their reliability and professionalism.
When interviewing Blockchain Developers, focus on questions that reveal their technical expertise and problem-solving capabilities. Key questions include:
These questions will help you gauge their proficiency and suitability for your project.
Hiring a Blockchain Developer in London involves a few strategic steps. Start by defining your project requirements, including the specific skills and experience needed. Next, consider using platforms like Twine to access a vast pool of freelance talent. Post your job listing with clear objectives and expectations. Networking within local tech communities can also yield recommendations. Remember to review portfolios and conduct thorough interviews to assess technical skills and cultural fit before making a decision.
The choice between hiring a freelance Blockchain Developer and working with an agency depends on your project requirements. Freelancers often provide personalized attention and flexibility, allowing for direct communication and potentially lower costs. However, agencies typically offer a team of professionals with diverse skills, providing a broader range of expertise and resources. Agencies may also have established processes for project management and delivery. Consider your project scope, budget, and timeline when making this decision.
A well-crafted project brief or job description for a Blockchain Developer should include the following elements:
This clarity will attract qualified candidates who align with your project needs and expectations.
Hiring on Twine is simple.
Post your project and meet your expert within 24 hours. Over 45,000+ high growth companies that trust Twine.