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Martin A. - Freelance Blockchain Developer

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Blockchain Developer
AWS, Azure, Data Visualization
AWS, Azure, Data Visualization
I'm a multidisciplinary software engineer with a passion for AI-driven systems, blockchain platforms, and full-stack development. I design and build scalable, secure prod...
Nadir A. - Freelance Blockchain Developer

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Blockchain Developer
https://nadirarbiaportfolio.netlify.app/ This is my portfolio website
Theodor T. - Freelance Blockchain Developer

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Blockchain Developer
I am a web developer and smart contract creator with a strong interest in the intersection of informatics and business. Currently, I am pursuing a bachelor's degree in in...
Georgi G. - Freelance Blockchain Developer

Available

Blockchain Developer
Hey there! I'm Georgi Georgiev, a seasoned web3 developer with years of experience in developing and maintaining production-ready web3 apps. My work spans research, MVPs,...
Rumen S. - Freelance Blockchain Developer

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Blockchain Developer
Hi, I’m Rumen Somov. I’m a Full Stack AI Engineer with 5+ years of experience designing and deploying high-performance web applications and intelligent automation systems...
Dragomir F. - Freelance Blockchain Developer

Available

Blockchain Developer
Hi, I’m Dragomir Filev—a creative and technically adept Backend & Blockchain Engineer. I’m passionate about building decentralized, AI-driven, and automation-based platfo...
Justin F. - Freelance Blockchain Developer

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Blockchain Developer
I am a hardworking frontend developer with over 4 years of experience building complex web applications for enterprise and blockchain projects. I am very knowledgeable in...
Artem K. - Freelance Blockchain Developer

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Blockchain Developer
I am a senior backend developer with extensive experience in designing and developing scalable, high-performance systems, particularly using Java, Kotlin, and Rust. Over ...
Dimitar J. - Freelance Blockchain Developer

Available

Blockchain Developer
Hi, I'm Dimitar Jilanov, a passionate Full Stack Engineer with years of experience building and designing high-quality software products. I thrive on overcoming challenge...

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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..."
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Joseph @ Cody Solutions
May 22, 2026
"Luthfi was the core developer behind Web3 Cianjur, our community learning platform for Web3 education. He single-handedly built the entire platform from scratch — including a gamified reward system, a trading simulator, and real-time community features — all using Next.js, TypeScript, and Tailwind CSS. What impressed me..."
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Apr 10, 2026
"Gorun Soghomonian was great to work with. They really listened to my needs and all work was delivered on time."
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Apr 6, 2026
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OTHER CREATIVES IN YOUR AREA

We've got more than blockchain developers in Bulgaria
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From the blog

Frequently Asked Questions

What does a Blockchain Developer do?

A Blockchain Developer is a specialized software engineer focused on developing and optimizing blockchain protocols, crafting smart contracts, and building decentralized applications (dApps). Their responsibilities typically include:

  • Designing and implementing blockchain architecture.
  • Creating smart contracts that govern transactions.
  • Integrating blockchain technology with existing systems.
  • Conducting security assessments and audits of blockchain solutions.
  • Staying updated on industry trends and technologies.

Blockchain Developers work with various platforms like Ethereum and Hyperledger and are crucial for businesses looking to leverage blockchain for increased security, transparency, and efficiency.

How to Hire a Blockchain Developer in Bulgaria?

Hiring a Blockchain Developer in Bulgaria involves several key steps. First, clearly define your project requirements, including the technology stack and deliverables. You can post your job on platforms like Twine, where you can reach a pool of talented professionals. Leverage local networks and tech communities to find recommendations. Be specific about the skills you need, such as experience with smart contracts or cryptography. Finally, conduct thorough interviews to assess candidates' technical abilities and cultural fit.

How much does it cost to hire a Blockchain Developer in Bulgaria?

The cost of hiring a Blockchain Developer in Bulgaria varies based on experience level:

  • Beginner: BGN 1,500 - BGN 2,500 per month
  • Junior: BGN 2,500 - BGN 4,000 per month
  • Mid-level: BGN 4,000 - BGN 6,500 per month
  • Senior: BGN 6,500 - BGN 10,000 per month
  • Expert: BGN 10,000+ per month

These ranges can fluctuate based on demand, specific skill sets, and project complexity.

What qualities set exceptional Blockchain Developers apart from the rest?

Exceptional Blockchain Developers possess a blend of technical skills and personal attributes that distinguish them in the field. Key qualities include:

  • Strong understanding of cryptography and security protocols.
  • Proficiency in various programming languages, such as Solidity and JavaScript.
  • Problem-solving skills to tackle complex challenges.
  • Ability to work collaboratively in teams and communicate effectively.
  • Continuous learning to stay ahead in a rapidly evolving landscape.

These attributes enable them to deliver high-quality, innovative solutions that meet client needs.

How do you recognize the perfect Blockchain Developer in Bulgaria for your needs?

To identify the perfect Blockchain Developer for your project in Bulgaria, start by assessing their technical expertise and relevant experience. Look for a strong portfolio showcasing similar projects, particularly in your industry. Conduct interviews focusing on problem-solving skills and their approach to challenges. Additionally, consider their communication style and ability to work with your team. Client reviews and references can provide insights into their reliability and work ethic. Ensure they align with your project’s vision and culture.

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

When interviewing a Blockchain Developer, ask questions that gauge their technical knowledge and problem-solving abilities, such as:

  • Can you explain the differences between various blockchain platforms?
  • What is your experience with smart contracts and dApps?
  • How do you ensure security in blockchain applications?
  • Can you describe a challenging blockchain project you worked on?
  • How do you stay current with blockchain trends and technologies?

These questions will help you assess their competence and fit for your project.

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

Hiring a freelance Blockchain Developer offers flexibility and often lower costs, as freelancers typically have lower overhead than agencies. You can directly negotiate terms and have a one-on-one working relationship. However, working with an agency provides access to a team of experts with diverse skills and resources. Agencies often have established processes for project management and quality assurance, which can lead to faster delivery and reduced risk. Your choice should depend on your project’s complexity, budget, and timeline.

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

A comprehensive project brief for a Blockchain Developer should include:

  • A clear project overview outlining objectives and goals.
  • Specific technical requirements, including desired programming languages and frameworks.
  • Timeline and milestones for deliverables.
  • Budget range and payment structure.
  • Information on your company and team culture to attract the right candidates.

This clarity will help potential candidates understand your needs and determine if they are a good fit.

How do I hire a Blockchain Developer in Bulgaria 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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