Available
Alex Morgan
London, UK
Blockchain Developer
Design, Illustration
Award-winning creative with a decade of experience across brands and startups.
See MorePost a project and get matched with Blockchain Developers in Krakow, Poland. Matched in 24 hours. No agency fees.
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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.
We've got more than Blockchain Developers in Krakow, Poland
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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
zł12,000 – zł32,000
Full possible range for a mid-level Blockchain Developer over 2–4 weeks
Common questions answered before you post a project.
A Blockchain Developer is a specialized software engineer focused on developing and implementing blockchain technology solutions. Their responsibilities include designing blockchain protocols, creating smart contracts, and building decentralized applications (dApps). They also work on integrating blockchain with existing systems and ensuring security and compliance. Developers may specialize in either front-end or back-end development, dealing with aspects such as user interfaces or the underlying blockchain architecture. Overall, they play a crucial role in leveraging blockchain technology to improve transparency, security, and efficiency in various business applications.
Exceptional Blockchain Developers possess a unique blend of technical expertise and soft skills. Key qualities include:
Additionally, a passion for technology and a commitment to staying updated on industry trends can set top-tier developers apart, ensuring they deliver innovative solutions for your projects.
Typical day rates for Blockchain Developers in Poland 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, start by reviewing their portfolio to assess previous work and relevant projects. Look for developers who demonstrate a deep understanding of blockchain technology and have experience in your specific industry. Conduct thorough interviews to gauge their problem-solving skills and ability to communicate effectively. Additionally, check their references and client reviews on platforms like Twine to validate their reliability and expertise. Ultimately, the right developer should not only possess the necessary technical skills but also align with your project goals and company culture.
During the interview, consider asking the following key questions to evaluate a Blockchain Developer's qualifications:
These questions will help you assess their technical abilities, problem-solving skills, and commitment to continuous learning.
Hiring a Blockchain Developer in Krakow involves a few strategic steps. Start by clearly defining your project requirements, including the specific technologies and skills you need. Utilize platforms like Twine to post your job, ensuring to highlight the scope of work, timeline, and budget. You can also network within local tech communities or attend blockchain meetups to find potential candidates. When interviewing, look for candidates with a proven track record in blockchain projects and ask for references to validate their experience. This will help you find a qualified developer who aligns with your project's goals.
When deciding between hiring a freelance Blockchain Developer and working with an agency, consider the following differences:
Your choice should depend on the complexity of your project, budget, and preferred working style.
A comprehensive project brief for a Blockchain Developer should include the following elements:
A well-crafted project brief helps attract the right talent and sets clear expectations for both parties.
Hiring on Twine is simple.
Post your project and meet your expert within 24 hours. Over 45,000+ high growth companies that trust Twine.
