With the acceleration of blockchain technology integration into multiple industries, the demand for blockchain developers is also increasing.

Blockchain programmers assist businesses by designing highly advanced tools that empower digital asset management, automatic execution, trusted business networks, production grading, and advanced security.

Additionally, blockchains are the perfect solution for stakeholders in various industries that offer transparency, security, data traceability, and increased trust.

For this purpose, various companies need to hire dedicated blockchain developers who can lead the company to high success.

Let’s discuss in detail about blockchain and see what factors you should consider when hiring blockchain developers and why you should hire blockchain developers in Poland or Ukraine.

What is A Blockchain Developer?

A blockchain developer is a professional software engineer who develops smart contracts and decentralized applications using blockchain technology while considering the protocols and architecture of technology.

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What Does A Blockchain Developer Do? Roles & Responsibilities

As you now understand what a blockchain developer is, now is time to dive in further to understand what does a blockchain developer do.

The main roles and responsibilities of blockchain developers include:

  • Designing and directing network topology.
  • Establishing the blockchain protocol and designing network protection and consensus methods.
  • Designing safety measures and utilizing encryption to deter cybercrimes and protect against online threats, including hackers.
  • Establishing the latest technology for blockchain network security and guiding the other team members about blockchain technology.
  • Research, analyze, develop, evaluate, design, and build application features of blockchain systems while utilizing various code languages.
  • Noticing backend development for blockchain as well as forming a convertible front end for decentralized applications (DApps) is also one of the key responsibilities of blockchain developers.
What is DApps?DApps or dapps are software programs that direct on peer-to-peer (P2P) networks or blockchains of computers instead of running on a single computer.

Types Of Blockchain Developers

Blockchain engineers are of two types:

  • Core blockchain engineers
  • Blockchain software engineers

Through these types, we can determine the roles and responsibilities of blockchain developers.

1. Core Blockchain Developers

The primary type of blockchain developer is the core blockchain programmer, who maintains the existing blockchains.

Core blockchain developers have the following roles and responsibilities.

  • Responsible for establishing blockchain architecture.
  • Design blockchain protocols and consensus procedures.
  • Develop the network’s architecture and assure security.
  • Supervise the entire blockchain network.

2. Blockchain Software Developers

Another type of blockchain engineer is a blockchain software developer who designs the latest blockchain applications.

Blockchain software programmers have the following roles and responsibilities:

  • Build smart contracts
  • Create interactive front-end designs for Dapps
  • Maintain the entire stack running their Dapps
  • Maintain backend development specific to the blockchain.
  • Develop decentralized applications (Dapps) by utilizing blockchain technology.
  • Utilize the architecture and protocols designed by Core Blockchain Engineers.

Top 5 Benefits Of Blockchain 

Blockchain offers a wide range of perks to stakeholders from multiple industries. Blockchain not only boosts security but also offers many other advantages, which are explained below.

1. Automation

The primary benefit of blockchain lies in its capacity to automate transactions through the use of smart contracts, boosting efficiency and expediting the process. When all the specified conditions are met, these smart contracts seamlessly trigger the next steps in the transaction, creating a streamlined and enhanced way to manage the business.

Hiring blockchain developers in Poland

Smart contracts reduce dependency on third parties and human interventions for verifying contract terms once they are complete.

2. Boost Security

Blockchain assists in preventing unauthorized activities and fraud by creating a record that cannot be altered and is end-to-end encrypted.

Keeping data protected from third parties, including hackers, is very crucial, especially for stakeholders, and this is where the blockchain comes in. Blockchain helps you to choose how you want your data and information to be viewed by others.

3. Fast Traceability

Another top advantage of blockchain is instant traceability. Blockchain designs an audit trail that documents the asset origin at each step on its journey. With blockchain, it is convenient to share your provenance data directly with the customers. 

4. Higher Transparency

Blockchain offers greater transparency to organizations around the world. In the absence of blockchain, organizations have to keep separate databases. 

The blockchain uses a distributed ledger to record the data and transactions identically in various locations. Through blockchain, all the network participants with permission can access the information simultaneously, thus offering full transparency.

3. Enhanced Efficiency and Speed

Last but not least, the advantage of blockchain is that it offers efficient and fast transactions of various processes that otherwise require paper-heavy processes and are prone to human error and time-consuming.

All the documents and transaction details can be instantly stored on the blockchain without reconciling various ledgers; thus, the settlement and clearing process can be instant and reliable.

Blockchain Benefits In Various Industries

Blockchain is secure and decentralized, so it offers various benefits in a wide range of industries. The following sections show why blockchain is important.

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Supply Chains and Food Industry

Tracking joint supply chains from end to end is a difficult task. Still, blockchains make this process easy to handle by ensuring that the products are delivered within fundamental parameters safely.

The benefits blockchain offers in supply chains, and the food industry are:

  • Strengthens supply chains
  • Enhances visibility
  • Resolves issues faster.

 Banking and Financial Services

Blockchain is helpful in anything associated with finance and banking because money-related attacks and fraud are high. Blockchain offers multiple services in the banking sector such as designing and implementing smart contracts and creating decentralized, secure platforms for safe financial transactions.

In banking and financial services, blockchain plays a key role in many ways, such as blockchain:

  • Removes friction
  • Boosts efficiency of banking and finance
  • Proving beneficial to global trade.


Technology is rapidly evolving in the healthcare industry, and blockchain technology is also helpful in this field.

Implementing blockchain technology in the healthcare industry can resolve issues costing more than hundreds of billions of dollars annually. 

Healthcare is a wide industry, and blockchain proves beneficial in this industry as it

  • Improves data security
  • Facilitates record sharing
  • Empowers patients with data control


The pharmaceutical industry also takes full advantage of blockchain as blockchain performs function in pharmaceuticals by providing the following benefits.

  • Enables end-to-end traceability
  • Preventing counterfeiting
  • Ensuring product recalls


Blockchain is also offering many benefits in Government sectors by permanently recording asset transactions, enhancing service delivery, and boosting transparency.

The benefits of blockchain technology in government are as follows.

  • Enhances data sharing
  • Regulatory compliance
  • Identity management
  • Citizen services


Dynamic development is occurring in the insurance industry, but along with this growth, new issues are arising. Blockchain offers a perfect solution for enhancing cyber insurance policies and detecting fraud in the insurance sector.

When it comes to the insurance industry, blockchain plays its role by

  • Automating processes
  • Reducing fraud
  • Expediting claims settlement while cutting costs.

Key Skills To Look Out For When Hiring Blockchain Developers

A wide range of expertise and in-depth knowledge are important for blockchain programmers. A blockchain programmer with both technical and soft skills is considered professional. Some of these skills are discussed below.

Blockchain engineer skills

Technical Blockchain Developer Skills

1. Programming Languages

Programming languages are most often used in blockchain technologies. Indeed, programmers can’t be skilled in every programming language; however, they should be experts in more common languages like Solidity (for Ethereum), Go (Golang), and JavaScript for building decentralized applications (dApps).

A solid base in object-oriented programming is the initial skill a blockchain engineer must possess.

2. Understanding of Blockchain Architecture

Another important skill a blockchain developer should be an expert in is the knowledge of blockchain architecture, distributed ledger technology, consensus algorithms, and peer-to-peer networking protocols. 

Blockchain programmers should thoroughly understand hash functions, cryptography, smart contracts, distributed ledgers, and decentralized applications.

3. Blockchain Frameworks and Protocols:

These are the basic technologies that underpin the network of blockchains.  They highlight the standards and rules for validating, designing, and recording transactions on a blockchain.

Therefore, familiarity with blockchain frameworks like Ethereum, Hyperledger Fabric, and protocols like Bitcoin is another main expertise of blockchain programmers that should be considered when hiring a blockchain developer.

4. Smart Contract Development

Self-executing digital contracts or smart contracts allow two parties to exchange services or goods without a mediator.

Smart contracts are an important part of blockchain networks, so those engineers who understand what they are and how they carry out business logic are considered experts in this field.

Therefore, the experience of a blockchain engineer in creating smart contracts using languages like Solidity and GoLang is also crucial.

5. Cryptography and Cybersecurity

For ensuring the protection of blockchain operations, effective cryptography is critical. Blockchain programmers should strongly grasp cryptographic practices and concepts such as keys, wallets, and asymmetric/symmetric encryption. 

Additionally, a deep understanding of cryptographic techniques, hash functions, digital signatures, and cybersecurity best practices for securing blockchain applications also counts in the technical skills of blockchain developers.

Soft Skills 

1. Collaboration and Teamwork

A blockchain engineer should understand how to collaborate and work in a team because blockchain management requires a team effort.

Blockchain programmers working together

2. Problem-Solving

Blockchain programmers have problem-solving ability, making it convenient to solve even the most complex issues while developing blockchain.

3. Flexibility and Adaptability:

The soft skill set includes flexibility and adaptability. Therefore, blockchain engineers should be interested in learning new technologies and adaptable to change.

4. Communication Skills

Another vital soft skill is strong communication. The more effectively a blockchain programmer can deliver his ideas to the team, the more likely his chances of success are. 

5. Deadline Management

A blockchain developer should understand how to work under pressure and manage deadlines while not compromising the quality of work.

5 Common Mistakes To Avoid When Hiring Blockchain Developers

1. Neglecting Blockchain Knowledge

The first mistake you should avoid while hiring a blockchain programmer is focusing on something other than the candidate’s blockchain knowledge. Ensure candidates have a solid understanding of blockchain technology, not just general programming skills.

2. Focusing Solely on Experience

Make sure to dismiss candidates lacking extensive blockchain development experience; also look for a candidate open to adaptability and willing to learn.

3. Ignoring the Importance of Smart Contracts

Ensure candidates are experts in writing, deploying, and managing smart contracts.

4. Neglecting Security Expertise

Ensure candidates are well-versed in blockchain security best practices, including cryptography and secure coding, because security is the most important feature of blockchain.

5. Rushing the Hiring Process

Take your time to evaluate candidates thoroughly; rushing can lead to hiring the wrong fit for your project’s long-term needs.

How To Hire A Blockchain Developer: Choosing The Perfect Candidate

To understand how to hire blockchain developers, read the following steps.

Blockchain developers in Poland and Ukraine

1. Define Your Blockchain Needs

Conduct thorough research to identify how blockchain can benefit your business or project.

2. Determine Developer Type

Decide whether you need a core blockchain developer or someone to work on blockchain-related applications.

3. Craft a Detailed Job Description

While hiring a blockchain developer for your company, design a clear and detailed job description that helps the candidates understand your needs and makes it easy for you to hire a blockchain application developer that fits your company’s needs.

4. Establish Selection Process

Define the criteria for evaluating candidates, including technical skills, soft skills, programming languages, and relevant experience. This will help you easily choose the right candidate.

5. Commence Recruitment

Begin the talent search using your defined strategy and criteria.

Best Models for Hiring Blockchain Developers

1. In-House


In-house blockchain developers work closely with businesses and deeply understand their objectives.


  • Sensitive to the business environment
  • Works extraordinarily for the betterment of the company


  • Costly
  • Less range of professionals

2. Freelance 


Freelance blockchain developers are those who work remotely as self-employed professionals. They are the best option when your project is simple and you want to introduce one or two blockchain developer specialists to your team.


  • Cost-effective 
  • Focused expertise


  • Limited availability
  • It may impact the project quality if not understood properly 

3. Outsourcing


Outsourcing allows the stakeholders to give the task of hiring and managing blockchain tasks to a well-reputed third-party company. 


  • Stability
  • Seamless management 


  • Security risks
  • The language barrier

Hiring Remote Blockchain Developers

Why Hire Blockchain Developers From Poland Or Ukraine?

Cost-Effective Expertise

Benefit from skilled blockchain developers from Poland and Ukraine professionals at competitive rates compared to Western counterparts.

Technical Excellence

A strong tradition of technical education ensures a range of highly skilled blockchain developers with expertise in multiple blockchain technologies.

Effective Communication

Remote blockchain developers from Poland and Ukraine have proficiency in English, which simplifies communication and collaboration with international clients.

Proven Track Record

These blockchain development companies have a solid global history of delivering quality blockchain projects, enhancing their reputation.

Let RemoDevs Help You Hire Blockchain Developers

Do you need an expert and skilled blockchain developer to take your project to new heights? Look no further than RemoDevs!

Get assistance to hire a blockchain developer at RemoDevs, as our blockchain developers are highly expert and deliver exceptional results in the given time frame. Additionally, RemoDevs ensures your project scales up at competitive pricing without compromising quality.

Ready to enter the world of blockchain? Contact RemoDevs now, and let’s bring your vision to life together!

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Lukasz Wybieralski

Lukasz Wybieralski

Founder and Chief Executive Officer at RemoDevs

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