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We have over 14,500 blockchain developers who've worked in many different industries and cover various styles and skillsets.
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Trusted by companies around the world

"Vladislav was responsible for all development from A to Z and based on his great expertise and knowledge about Blockchain development, he completed the project very perfectly and delivered on time. I believe his blockchain development skills and with him, we could complete our presale successfully with large Market..."
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Lukasz @ Charlie Unicorn AI
Nov 27, 2025
"I had the pleasure of working with Lok Lee during his time as a Software Engineer at OpenPhron.ai, and I can say with confidence that he was one of the driving forces behind the progress we made in the early stages of the product. Lok demonstrated exceptional skill in full-stack development — particularly in React,..."
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Guillermo @ OpenPhron.ai
Nov 26, 2025
"Awesome Engineer and love to work with him more and more. Excellent his leading skillset is also attractive."
Sven @ Sky Talent Management
Nov 25, 2025
"Working with Bharath Vishnu was an absolute pleasure. He was incredibly responsive, understood our needs perfectly, and delivered exactly what we were looking for. He communicated clearly throughout the project, making the entire process straightforward and positive. Apart from this, he transformed and delivered my vision..."
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Sanwar @ Crocklytech
Nov 20, 2025
"This is really innovation platform. No need to find other farming pool It can support all of chain. If you wanna make profit, use this. This is easy to use and manage."
martin @ phron.ai
Nov 15, 2025
"Pretty Good Developer I felt happy all time that work with you."
Riora @ Personal Work
Nov 11, 2025
"Working with Twine enabled us to scale projects quicker than before and the Twine Business makes it so easy to manage and pay contractors over the world."
-Josh Bolland
CEO, J B Cole
"I found an amazing designer and she's fast. I now send her my ideas and she transforms them into great design. The collaboration is fast, professional and easy. It feels like she is already part of our team."
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-Achim Kohli
CEO, Legal-i
5 star reviews

Clients Rate Twine Blockchain Developers

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/ 5.0

on average across

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82

reviews as of December 6, 2025

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From the blog

Frequently Asked Questions

What does a Blockchain Developer do?

A Blockchain Developer is a tech professional who specializes in the development and implementation of blockchain technology. Their primary responsibilities include designing blockchain protocols, creating smart contracts, and developing decentralized applications (dApps). They also focus on ensuring the security and scalability of blockchain systems. Key tasks include:

  • Writing code for blockchain applications.
  • Integrating blockchain with existing systems.
  • Conducting research on new technologies and trends in the blockchain space.

Overall, Blockchain Developers play a crucial role in transforming how data is managed and secured across various industries.

How to Hire a Blockchain Developer in Seattle, US?

To hire a Blockchain Developer in Seattle, start by defining your project needs clearly. This includes outlining the specific skills required, such as expertise in various blockchain platforms (like Ethereum or Hyperledger), programming languages (like Solidity or JavaScript), and the experience level needed. Next, utilize platforms like Twine, where you can post your job listing, and browse through skilled professionals’ portfolios. Networking in local meetups or tech events can also help you find talented developers. Finally, conduct interviews to assess technical and interpersonal skills, ensuring a good fit for your project.

How much does it cost to hire a Blockchain Developer in Seattle, US?

The cost to hire a Blockchain Developer in Seattle varies based on experience level:

  • Beginner: $30 - $50 per hour
  • Junior: $50 - $80 per hour
  • Mid-level (industry average): $80 - $130 per hour
  • Senior: $130 - $180 per hour
  • Expert: $180+ per hour

These rates can fluctuate based on the complexity of the project and the specific skills required, so it's essential to evaluate your budget accordingly.

What qualities set exceptional Blockchain Developers apart from the rest?

Exceptional Blockchain Developers possess a unique combination of technical skills and personal attributes. Key qualities include:

  • Strong problem-solving abilities, allowing them to tackle complex challenges.
  • Proficiency in multiple programming languages and frameworks.
  • Attention to detail, ensuring the accuracy and security of code.
  • Good communication skills, crucial for collaborating with teams.
  • A continuous learning mindset to stay updated with evolving technologies.

These qualities enable them to deliver high-quality solutions and adapt to project demands effectively.

How do you recognize the perfect Blockchain Developer in Seattle, US for your needs?

Recognizing the perfect Blockchain Developer involves assessing both technical skills and cultural fit. Start by reviewing their portfolio for relevant projects that showcase their expertise in the specific blockchain technology you need. Check their references and client feedback to gauge reliability and work ethic. During interviews, ask about their problem-solving approaches and past experiences. Evaluate their understanding of your business goals and how they can contribute to achieving them. A well-rounded developer will not only have the necessary technical abilities but also align with your company’s values and communication style.

What are the key questions to ask in a Blockchain Developer interview?

When interviewing a Blockchain Developer, consider asking the following key questions:

  • Can you explain the blockchain technology you have worked with, and what projects you’ve implemented it in?
  • How do you ensure the security of the applications you develop?
  • What programming languages and frameworks are you most comfortable with?
  • Can you describe a challenging problem you faced in a blockchain project and how you resolved it?
  • How do you keep yourself updated with the latest developments in the blockchain space?

These questions will help you gauge the candidate’s technical proficiency, problem-solving abilities, and enthusiasm for the field.

What’s the difference between hiring a freelance Blockchain Developer and working with an agency in Seattle, US?

Hiring a freelance Blockchain Developer offers flexibility and often lower costs, as freelancers typically have lower overhead. They can provide personalized attention to your project and may offer more innovative solutions due to their diverse experience. However, working with an agency can provide a broader range of expertise and resources, ensuring that multiple aspects of a project are managed simultaneously. Agencies usually have established processes, which can lead to quicker turnaround times. Ultimately, the choice depends on your specific project needs, budget, and timeline.

What should be in a Blockchain Developer project brief / job description?

A well-crafted project brief for a Blockchain Developer should include:

  • An overview of your company and the project goals.
  • Specific blockchain platforms and technologies required.
  • Details on the expected deliverables and timeline.
  • Budget constraints or hourly rates.
  • Required qualifications and experience level.
  • Information on the project team and communication channels.

Providing clear expectations in your job description will help attract the right candidates and ensure a smoother hiring process.

How do I hire a Blockchain Developer in Seattle, US on Twine?

Hiring on Twine is simple.

  1. Post a job with your project details, timeline, and budget.
  2. Browse portfolios of vetted Blockchain Developers and invite those who match your needs.
  3. Receive proposals and compare experience, pricing, and reviews.
  4. Communicate expectations, set milestones, and finalize the hire.
  5. Securely pay through Twine, ensuring protection for both parties. Twine connects you with top freelance Blockchain Developers, making it easy to find the perfect creative professional for your project.

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