Blockchain developer – how to hire the right professional

Maciej Zieliński

16 May 2021
Blockchain developer – how to hire the right professional

There are hundreds of new projects using blockchain technology every month around the world. It is estimated that by 2025, the value of the blockchain market will reach 39.5 billion. Therefore, blockchain remains one of the few industries where the demand for specialists so far exceeds the supply. In that case, which blockchain developer will meet your company's expectations and how to find one?

How much demand is there for Blockchain developers?

Entrepreneurs around the world are investing more and more money in blockchain development, and companies like JP Morgan, Oracle, Amazon, and Facebook are already using blockchain technology to handle their daily financial operations. 

If the number of top companies, including the world's largest banks and real estate giants, interested in blockchain technology is growing every day, there is basically no doubt that the demand for Blockchain developers is also growing. 

That's why LinkedIn has already rated blockchain as the most needed skill in 2020. And the U.S. Bureau of Labor Statistic has ranked Blockchain programmers among the fastest growing occupations in 2019-2020.

What skills a blockchain developer should have?

We have already written more about the skills needed by a Blockchain programmer in our article Blockchain programmer - how to become one?  

In a nutshell, every Blockchain programmer should understand the concept and tenets of Blockchain technology, cryptography, and be comfortable with topics such as tokens, smart contracts, decentralized applications and registries, and be fluent in the necessary programming languages. 

What programming languages should a blockchain programmer know?

The blockchain programmer you hire for your company should be proficient in all or most of the following programming languages:

  • C++
  • Scala
  • Python
  • Java
  • Javascript
  • Golang
  • Solidity

In addition, you should look for a blockchain developer who:

  • They previously worked with OOPS (Object-Oriented Programming Structure), this structure allows the program to be quickly updated when needed.
  • Deep understanding of language syntax makes a really big difference with Dapps
  • Be able to implement multithreading 
blockchain developer

Specific skills a Blockchain developer should have

A Blockchain developer should have a deep understanding of Blockchain technology and its applications. As a rule of thumb, a Blockchain programmer will be comfortable with the following concepts, which you should also be familiar with before interviewing him:

SHA (Security Hash Algorithm) - its familiarity is an absolute must, make sure that your company's Blockchain developer candidate knows the difference between SHA-1 and SHA-2 and can choose the right one for your application.

Encryption and decryption methods - necessarily along with a deep understanding of public and private key concepts. 

DLT (Distributed Ledger Technology) - a technology that allows data to be stored in multiple, distributed nodes rather than in a single location. The developer should be able to identify and explain its use cases in different Blockchain. 

Consensus- defines how new data is added to the blockchain (each node in the network must "agree" to add new information). A blockchain developer should distinguish between consensus methods such as PoS (Proof of Stake) and PoW (Proof of Work).

Tokenization - Tokenization is the process of converting both physical and non-physical assets into digital tokens using Blockchain technology. Every Blockchain developer should be able to create tokens and distinguish their basic types such as Utility, Security or NFT tokens. You can read more about them in our article: New token types – everything you need to know about them.

Dapps - decentralized, peer-to-peer applications.

Smart contracts - this is a self-enforcing contract in which the terms agreed between the parties are written directly into the lines of code. Smart contracts are the backbone of decentralized applications, where they allow for the abandonment of intermediaries. 

Various Blockchain Protocols - Currently, the most popular are Ethereum, Hyper Ledger Fabric and Corda. Blockchain projects mostly use one of these, so a Blockchain developer does not need to be proficient with all of them. On the other hand, his or her experience with them should certainly coincide with your needs. If you do not know which Blockchain protocol will work best for your project, our consultants can help you free of charge: contact@nextrope.com

Public and Private Blockchain - A blockchain developer should understand and be able to explain the differences between the two and justify their different business uses.

blockchain developer

Where to find a Blockchain developer

Online forums

Online platforms, forums, and groups on sites like Facebook, Reddit, and the IEEE Blockchain Community can also prove to be good places to look for Blockchain developers

Conferences

Nowadays, all such events have moved online, making it difficult but not impossible to find a blockchain developer at them. 

Schools

More and more universities are introducing courses focused on Blockchain. It is among their students and graduates that you will most easily find young people hungry for development and experience for the position of Blockchain programmer. 

Websites for freelancers

Among them, especially noteworthy are: CodementorXX-TeamToptal, BountyOne and Stack Overflow.

How to hire a Blockchain developer with Nextrope

We are a Polish software house providing Blockchain outsourcing services. We approach each project with great attention to detail and personal commitment. Among our clients there are revolutionary startups from financial and legal sector as well as one of the biggest banks in Poland - Alior Bank. You can read more about our success here. 

After years of work, we simply know the basics of fantastic projects. Want to find out why Nextrope - make an appointment for a free consultation: contact@nextrope.com

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Blockchain for Creators: Secure and Sustainable Infrastructure

Miłosz Mach

07 Nov 2025
Blockchain for Creators: Secure and Sustainable Infrastructure

In today’s digital creative space, where the lines between art and technology are constantly blurring, projects like MARMALADE mark the beginning of a new era - one where creators can protect their work and maintain ownership through blockchain technology.

For Nextrope, being part of MARMALADE goes far beyond implementing features like screenshot blocking or digital watermarking. It’s about building trust infrastructure - systems that empower creators to thrive in the digital world safely and sustainably.

A new kind of blockchain challenge

Cultural and educational projects come with a completely different set of challenges than typical DeFi systems. Here, the focus isn’t on returns or complex smart contracts - it’s on people: artists, illustrators, educators.

That’s why our biggest task was to design secure yet intuitive infrastructure - lightweight, energy-efficient, and accessible for non-technical users exploring Web3 for the first time.

“Our mission wasn’t to build another financial protocol. It was to create a layer of trust for digital creators.”
— Nextrope Team

Security that stays invisible

The best security is the kind you don’t notice.
Within MARMALADE, we focused on making creators' protection seamless:

  • Screenshot blocking safeguards artworks viewed in browsers.
  • Dynamic watermarking helps identify unauthorized copies.
  • Blockchain registry ensures every proof of ownership remains transparent and immutable

“Creators shouldn’t have to think about encryption or private keys - our job is to make security invisible.”

Sustainability by design

MARMALADE also answers a bigger question - how to innovate responsibly.
Nextrope’s infrastructure relies on low-emission blockchain networks and modular architecture that can easily be adapted for other creative or cultural initiatives.

This means the technology built here can support not only artists but also institutions, universities, and educators seeking to integrate blockchain in meaningful ways.

Beyond technology

For Nextrope, MARMALADE is more than a project — it’s proof that blockchain can empower culture and creators, not just finance. By building tools for digital artists, we’re helping them protect their creativity and discover how technology can amplify human expression.

Plasma blockchain. Architecture, Key Features & Why It Matters

Miłosz Mach

21 Oct 2025
Plasma blockchain. Architecture, Key Features & Why It Matters

What is Plasma?

Plasma is a Layer-1 blockchain built specifically for stablecoin infrastructure combining Bitcoin-level security with EVM compatibility and ultra-low fees for stablecoin transfers.

Why Plasma Blockchain Was Created?

Existing blockchains (Ethereum, L2s, etc.) weren’t originally designed around stablecoin payments at scale. As stablecoins grow, issues like congestion, gas cost, latency, and interoperability become constraints. Plasma addresses these by being purpose-built for stablecoin transfers, offering features not found elsewhere.

  • Zero-fee transfers (especially for USDT)
  • Custom gas tokens (separate from XPL, to reduce friction)
  • Trust-minimized Bitcoin bridge (to allow BTC collateral use)
  • Full EVM compatibility smart contracts can work with minimal modifications

Plasma’s Architecture & Core Mechanisms

EVM Compatibility + Smart Contracts

Developers familiar with Ethereum tooling (Solidity, Hardhat, etc.) can deploy contracts on Plasma with limited changes making it easy to port existing dApps or DeFi, similar to other EVM-compatible infrastructures discussed in the article „The Ultimate Web3 Backend Guide: Supercharge dApps with APIs".

Gas Model & Token Mechanism

Instead of forcing users always to hold XPL for gas, Plasma supports custom gas tokens. For stablecoin-native flows (e.g. USDT transfers), there is often zero fee usage, lowering UX friction.

Bitcoin Bridge & Collateral

Plasma supports a Bitcoin bridge that lets BTC become collateral inside smart contracts (like pBTC). This bridges the security of Bitcoin with DeFi use cases within Plasma.
This makes Plasma a “Bitcoin-secured blockchain for stablecoins".

Security & Finality

Plasma emphasizes finality and security, tuned to payment workloads. Its consensus and architecture aim for strong protection against reorgs and double spends while maintaining high throughput.
The network launched mainnet beta holding over $2B in stablecoin liquidity shortly after opening.

Plasma Blockchain vs Alternatives: What Makes It Stand Out?

FeaturePlasma (XPL)Other L1 / L2
Stablecoin native designusually second-class
Zero fees for stablecoin transfersrare, or subsidized
BTC bridge (collateral)only some chains
EVM compatibilityyes in many, but with trade-offs
High liquidity early✅ (>$2B TVL)many chains struggle to bootstrap

These distinctions make Plasma especially compelling for institutions, stablecoin issuers, and DeFi innovators looking for scalable, low-cost, secure payments infrastructure.

Use Cases: What You Can Build with Plasma Blockchain

  • Stablecoin native vaults / money markets
  • Payment rails & cross-border settlement
  • Treasury and cash management flows
  • Bridged BTC-backed stablecoin services
  • DeFi primitives (DEX, staking, yield aggregation) optimized for stablecoins

If you’re building any product reliant on stablecoin transfers or needing strong collateral backing from BTC, Plasma offers a compelling infrastructure foundation.

Get Started with Plasma Blockchain: Key Steps & Considerations

  1. Smart contract migration: assess if existing contracts can port with minimal changes.
  2. Gas token planning: decide whether to use USDT, separate gas tokens, or hybrid models.
  3. Security & audit: focus on bridge logic, reentrancy, oracle risks.
  4. Liquidity onboarding & market making: bootstrap stablecoin liquidity, incentives.
  5. Regulation & compliance: stablecoin issuance may attract legal scrutiny.
  6. Deploy MVP & scale: iterate fast, measure gas, slippage, UX, security.