Blockchain Developer

20 Best Blockchain Developer

to Hire
in 2023

Looking to hire Blockchain Developer freelancers with the perfect set of skills for your next project? Work with the world's best freelancing talent on Contra.

transparent shapes
Juls G's avatar

Juls G

San Francisco, CA, USA

Harmonizing code & sound

Recommended 1x
Arman Stepanyan's avatar
Top Independent

Arman Stepanyan

Yerevan, Armenia

Full stack Web / AI / Blockchain developer

Recommended 1x
Jamie N's avatar
Top Independent

Jamie N

Brisbane QLD, Australia

Trusted Top 1% Lawyer, Researcher & Crypto Nerd

Arshad Ahmed's avatar

Arshad Ahmed

Bengaluru, Karnataka, India

Blockchain Developer with FrontEnd Specialization

Rakesh Kumar's avatar

Rakesh Kumar

New York, NY, USA

UX Engineer, Fullstack Developer, Product Designer

Sheng Yu's avatar

Sheng Yu

Beijing, China

Full stack developer / Smart contract developer

Digital  Dive's avatar

Digital Dive

Dubai - United Arab Emirates

Results-driven digital marketer & SEO expert

Rizwan Akram's avatar

Rizwan Akram


Blockchain dev and UI designer

Benyam Seifu's avatar

Benyam Seifu

Addis Ababa, Ethiopia

Innovative software engineer for web & mobile

Samarth gugnani's avatar

Samarth gugnani


Quality-focused Fullstack Engineer Startup Expert

Daniel Ocean's avatar

Daniel Ocean

Bali, Indonesia

Looking for new sales directions to scale yor biz?

Pooya Mahmoodi's avatar

Pooya Mahmoodi

Aalborg, Denmark

Versatile software developer skilled in full stack

Arber Fazliu's avatar

Arber Fazliu


Experienced multi-discipline engineer

Safira Zahira's avatar

Safira Zahira

Jakarta, Indonesia

Web and Blockchain Developer

Ammar Khalid's avatar

Ammar Khalid

Lahore, Punjab, Pakistan

Expert Web Developer: Ruby on Rails

Lone Raashid's avatar

Lone Raashid


Fullstack developer for web2 & web3 projects

Nagori Mustakim's avatar

Nagori Mustakim

Ahmedabad, Gujarat, India

Fullstack Blockchain Developer

Jimish Parekh 's avatar

Jimish Parekh

Ahmedabad, Gujarat, India

Blockchain Developer|Smart Contract Engineer

Ratko Ivanov's avatar

Ratko Ivanov

Skopje, North Macedonia

Versatile backend, frontend, and blockchain developer

Hire the best freelancers with ease

Hire now
Discover vettedtalent

Discover vetted

Connect with verified, high-quality freelancers.

Expert matching foryour opportunity

Expert matching for
your opportunity

Post your opportunity and we’ll do the work for you.

Managecontracts & payments

contracts & payments

Create contracts, pay, and chat with freelancers.

Scale your business

Scale your business

Focus on core business functions by outsourcing.

Save time & money

Save time & money

Let our team help you through the process of hiring, all for free.

99% of Clients report having a positive experience on Contra

Why Clients trust Contra

The quality of independents on Contra is top-notch, and the onboarding process is one to model. Being able to speak with a team member to truly understand what we needed as well as offer suggestions of talent in the network was a whole new experience for me.

Profile Image
Live Streaming Platform

Love, love, love. Contra is an amazing place to find flexible, creative talent. The process of getting to know independents through their profiles was incredibly easy and fast.

Profile Image
Platform for Async Collaboration

The talent I find on Contra has been excellent. But aside from that, Contra’s community differentiates Contra from other freelancing platforms. I love the responsiveness of the Contra team, and how invested they are in your success. I actually pay freelancers I’ve found outside of Contra through Contra because I love the platform so much, especially that they don’t take a cut of your payment.

Profile Image
Grounded Insights
UX Research Consulting Firm

I used to waste hours trying to find talent. Switching to Contra was 10x on my time, energy and money as an Entrepeneur and Creator. Lauren was a perfect fit from day one, and I couldn’t have found someone of this calibor without Contra.

Profile Image
Creator Store

I can vouch for Contra that it is a great hiring tool. I shoot my shot and the candidates I keep seeing are incredible.The process took minutes and the support I always get from their team is 10/10.

Profile Image
Cecilia Reusch
Community Strategist

Freelancers on Contra come across very professionally. They actually seem to read your job posting and have directly relevant skills, which isn’t always the case on most other freelancer sites. On Contra, freelancers who matched with my job seemed to have the relevant skills I was seeking.

Profile Image
Joseph Liu
Career Consultant
Our reviews are glowing
See more reviews
Clients hiring on Contra

Frequently asked

Blockchain development is the process of creating and maintaining a decentralized and tamper-resistant digital ledger using blockchain technology. A blockchain is a digital database that records transactions and stores them in a secure and transparent manner, making it almost impossible to manipulate or change the data. Blockchain developers work on building blockchain-based applications that can be used to solve various business problems and create new opportunities. They use programming languages such as Solidity, Java, or C++ to create smart contracts and blockchain-based decentralized apps (DApps). Some of the popular blockchain platforms where developers work include Ethereum, EOS, Hyperledger Fabric, and Corda.

Blockchain development is the process of creating and maintaining a decentralized and tamper-resistant digital ledger using blockchain technology. A blockchain is a digital database that records transactions and stores them in a secure and transparent manner, making it almost impossible to manipulate or change the data. Blockchain developers work on building blockchain-based applications that can be used to solve various business problems and create new opportunities. They use programming languages such as Solidity, Java, or C++ to create smart contracts and blockchain-based decentralized apps (DApps). Some of the popular blockchain platforms where developers work include Ethereum, EOS, Hyperledger Fabric, and Corda.

A freelance Blockchain developer is a self-employed professional who works on creating blockchain-based applications and solutions for clients on a project-by-project basis. They are responsible for developing smart contracts, designing and implementing various blockchain-based protocols, creating decentralized apps (DApps), and providing technical guidance and support for clients looking to integrate blockchain into their business processes.

As a freelancer, they work with companies or individuals that need blockchain development solutions, project requirements, and specifications. Some of the tasks they undertake as a freelance Blockchain developer include coding and testing smart contracts, auditing and testing blockchain-based applications, integrating blockchain into existing systems, and implementing best practices in the design of blockchain-based solutions.

To become a freelance Blockchain developer, one needs to have strong skills in programming languages such as Solidity, Java, or C++, an understanding of blockchain technology, and experience with blockchain development tools and platforms. They also need to be proficient in project management, client communication, and problem-solving to succeed as a freelance Blockchain developer.

Hiring a Blockchain developer can provide a range of advantages for businesses and individuals looking to leverage the benefits of blockchain technology. Some of the main reasons to hire a Blockchain developer include:

  1. Expertise: Blockchain developers have in-depth knowledge of blockchain technology, including its features, possibilities, and limitations. They can develop highly effective and secure blockchain-based solutions for your business.
  2. Customized solutions: Blockchain developers can provide customized blockchain solutions tailored to your specific business requirements. They can help you build blockchain applications that are unique to your business.
  3. Efficiency: Blockchain developers can create smart contracts, decentralized applications, and other blockchain solutions that can automate manual processes, streamline operations, and improve overall efficiency.
  4. Security: Blockchain developers can help you create a secure and tamper-proof data infrastructure using blockchain. This ensures that your data and valuable assets are safe from cyber threats and other types of attacks.
  5. Cost-effectiveness: Hiring a blockchain developer can be cost-effective in the long run. They can help you build solutions that reduce operational costs, improve efficiency, and increase profit margins.

Overall, blockchain developers can help businesses and individuals explore the full potential of blockchain technology and unlock new opportunities.

Here are the steps you can take to hire a Blockchain developer:

  1. Define your goals and requirements: Start by clearly defining your goals and requirements for the blockchain project. Determine what you want to achieve with the blockchain application, what features and functionalities you require, and how it will integrate with your existing systems.
  2. Look for qualified candidates: Look for qualified blockchain developers through various channels like freelance websites like Contra, job posting boards, and social media platforms. You can also contact specialized blockchain development companies for assistance in finding the right candidate for your project.
  3. Review credentials and past work: Review the credentials of each candidate, their experience, and expertise in blockchain development. Look at their past projects, testimonials, and client reviews to evaluate their abilities and performance.
  4. Conduct an interview: Shortlist candidates based on their credentials and conduct an interview. During the interview, assess the developer's knowledge, problem-solving skills, communication skills, and their ability to work as part of a team.
  5. Check references: Contact their references to verify their experience, work ethic, and professionalism.
  6. Decide on terms and conditions: Once you have selected your blockchain developer, agree on the terms and conditions, including the project timeline, milestones, payment structure, and deliverables.
  7. Start working: Once you have agreed on the terms and conditions, collaborate with the developer and start working on the project. Keep communication lines open throughout the project to ensure that you are working towards achieving the project goals.

Blockchain developers use various software tools to create, test, deploy, and manage blockchain-based applications. Some of the commonly used software tools in Blockchain development include:

  1. IDE (Integrated Development Environment): IDEs are software tools that provide a programming environment with features such as auto-completion, debugging, and code editing. Some popular IDEs used in Blockchain development are Visual Studio Code, IntelliJ IDEA, and Eclipse.
  2. Blockchain Framework: Blockchain developers use different frameworks to build blockchain applications. The choice of the framework depends on the intended usage, network size, and other factors. Some of the popular blockchain frameworks include Ethereum, Hyperledger Fabric, EOS, and Corda.
  3. Smart Contract Language: Smart contracts are self-executing contracts that automate the execution of the contract conditions. Blockchain developers use languages like Solidity, Go, and Java to create smart contracts.
  4. Testing Tools: To test and debug blockchain-based applications, developers use various testing tools like Truffle, Ganache, and Remix.
  5. Version Control Systems: Version control tools help developers manage their code like Git, which can help in collaboration and changes control purposes.
  6. Deployment Tools: The process of deploying blockchain-based applications requires a tool like Geth or Parity client that connects to the blockchain network.

Overall, Blockchain developers use a range of software tools to build, test, and deploy blockchain-based applications. Each tool has different features that make it suitable for specific use cases, and developers must be familiar with these tools to build effective blockchain-based solutions.

Freelance Blockchain developers can get paid in various ways, depending on the payment terms agreed upon with the client. Some of the common payment methods include:

  1. Hourly rate: In this payment model, the freelance Blockchain developer charges an hourly rate for their services. The payment is based on the number of hours worked on the project.
  2. Fixed price: In this model, the Blockchain developer agrees to a fixed price for the completion of a specific task or project. The payment is made once the project is delivered according to the requirements.
  3. Milestone-based payments: This payment model involves breaking down the project into milestones, and the payment is released on completion of each milestone.
  4. Revenue or profit-sharing: In some cases, Blockchain developers may agree to receive a percentage of the revenue or profits generated from the blockchain solution they develop.
  5. Crypto payments: Freelance Blockchain developers may also be paid in cryptocurrency, depending on the preferences of both the developer and the client.

Overall, freelance Blockchain developers can choose the payment model that suits them best and agree on payment terms with their clients to enable smooth and secure payment transactions.

The cost of hiring a Blockchain developer varies depending on several factors, including the developer's experience, location, and project requirements. According to various reports, the average hourly rate for a Blockchain developer can range from $50 to $250, depending on their experience and expertise. However, some developers may demand a higher rate depending on their skills and the complexity of the project.

The cost of hiring a Blockchain developer may also vary based on project requirements, such as the amount of time and resources required, the size and scope of the project, and the level of security required. For example, developing a simple blockchain application may cost less compared to building a complex, highly secure blockchain solution.

In addition, hiring a blockchain developer from different countries may cost differently. For example, a developer from a country with a lower cost of living may charge lower fees compared to a developer from a country with a higher cost of living.

Overall, to determine the cost of hiring a Blockchain developer, businesses need to consider various factors such as project requirements, the developer's experience and location, and the payment model used to pay the developer.

The salary of a Blockchain developer depends on factors like their experience level, geographic location, job position, and the company they work for. According to various job websites, the average annual salary of a Blockchain developer in the United States ranges from $90,000 to $175,000 depending on experience and expertise. However, more experienced developers can earn significantly higher salaries.

In some countries, the salaries of Blockchain developers can be significantly lower or higher depending on the economic situation and the cost of living in each location. For example, in India, the average annual salary of a Blockchain developer ranges from $20,000 to $80,000, but it can vary depending on the years of experience and expertise.

Overall, the demand for Blockchain developers is growing as more companies adopt Blockchain technology, which is expected to increase the salaries of Blockchain developers in the years to come.

If you want to start working as a Blockchain developer, below are the steps to follow:

  1. Learn Blockchain basics: To become a Blockchain developer, you need to have a strong foundational knowledge of Blockchain technology. You can start by reading Blockchain guides, watching tutorial videos, and taking online courses to gain a basic understanding of Blockchain.
  2. Learn programming languages: Blockchain developers must be proficient in programming languages such as Solidity, Java, or C++. Learning these languages is essential to build smart contracts and other Blockchain-based applications.
  3. Participate in online Blockchain communities: Join online Blockchain communities and forums to share knowledge, gain insights, and connect with fellow Blockchain developers.
  4. Build a portfolio: Create a portfolio of the blockchain projects you have worked on, the skills you have acquired, and the contributions you have made to Blockchain communities. This can help you showcase your skills and expertise to potential clients or employers.
  5. Find work: You can find work as a Blockchain developer through freelance websites, job posting boards, blockchain development companies, or by networking with people in the Blockchain community.
  6. Keep learning: Blockchain technology continues to evolve, and it's essential to keep up with the latest trends, updates, and best practices. Attend Blockchain conferences, read blockchain news, and take courses to stay informed.

Overall, becoming a Blockchain developer requires continuous learning and the ability to adapt to new technologies. With a strong foundational knowledge, expertise in programming languages, and collaboration with the Blockchain community, you can start working as a Blockchain developer and build a successful career.

The time it takes to become a Blockchain developer varies based on several factors, including your previous experience, the time you can dedicate to learning, and the complexity of the projects you want to develop. To become a competent Blockchain developer, you need to:

  1. Learn blockchain basics: To have a strong foundational knowledge of Blockchain technology takes a few days to a few weeks, depending on the resources and time you can productively allocate.
  2. Learn programming languages: It could take up to several months to learn a blockchain programming language such as Solidity, Java, or C++. This duration can vary depending on your familiarity with programming, or experience as a software developer as well as the underlying concepts of blockchain technology.
  3. Participate in online communities: Joining blockchain communities and forums can take several weeks to months as one needs to actively participate to grasp valuable insights.
  4. Build a portfolio: Developing blockchain projects could take a few weeks to several months depending on the scope and complexity of your projects.
  5. Keep learning: Blockchain Technology is continuously evolving; it's important to keep abreast with the latest trends, academic research, designing standards, and best practices to remain competitive and relevant.

Overall, it takes several months to years to become a qualified Blockchain developer. Dedication and a commitment to learning the underlying concepts, programming languages, and keeping up with the technological developments can significantly shorten the learning curve.

Yes, Blockchain development is a good career with a lot of growth potential. As blockchain technology continues to gain acceptance and implementation across various industries, the demand for skilled blockchain developers is on the rise. Here are some reasons why Blockchain development is a good career:

  1. High demand: The demand for Blockchain developers is growing rapidly as more companies adopt Blockchain technology. This has led to a shortage of skilled Blockchain developers, which means that competent Blockchain developers are in high demand.
  2. High-paying job: Blockchain development is a high-paying career. According to various studies, Blockchain developers earn above-average salaries compared to other software development fields.
  3. Opportunity for innovation: Blockchain technology is relatively new, and there is a lot of room for innovation. As a Blockchain developer, you have the opportunity to work on exciting projects and develop new solutions that can revolutionize various industries.
  4. Continuous learning: As Blockchain technology continues to grow and evolve, Blockchain developers must keep learning and adapting to new technologies, tools, and programming languages. This makes the profession dynamic and exciting.
  5. Global market: Blockchain is a global market, and with the widespread implementation of this technology, Blockchain developers can work with clients or employers anywhere in the world.

Overall, Blockchain development is a promising career with a lot of growth potential. With the growth of decentralized finance, NFTs, and other Blockchain use cases, the demand for Blockchain developers will continue to grow, making it a secure career choice.

Start hiring
Blockchain Developer

Hire now
contra logo

Related articles