Blockchain Developer

Project overview

Blockchain Developer

Role Overview

We are looking for a Blockchain Developer to design, develop, and maintain blockchain-based applications and decentralized solutions. The ideal candidate has strong software engineering skills, experience with smart contracts, and an understanding of blockchain architecture and security principles.

Responsibilities

• Design, develop, test, and deploy blockchain applications and smart contracts.
• Build and maintain decentralized applications (dApps) and blockchain integrations.
• Work with blockchain protocols, distributed systems, and cryptographic mechanisms.
• Develop and integrate APIs connecting blockchain solutions with external systems.
• Optimize smart contract performance, scalability, and transaction costs.
• Conduct code reviews, testing, and security assessments to ensure code quality.
• Collaborate with product managers, architects, and other developers to deliver reliable solutions.
• Stay up to date with emerging blockchain technologies and industry best practices.

Requirements

• Professional experience in software development, preferably in blockchain projects.
• Knowledge of blockchain architecture, distributed ledgers, and consensus mechanisms.
• Hands-on experience developing and deploying smart contracts.
• Proficiency in at least one relevant programming language, such as Rust, Python, Go, or JavaScript/TypeScript.
• Experience with blockchain development frameworks, APIs, and testing tools.
• Understanding of cryptography, wallet integrations, and blockchain security.
• Familiarity with Git, automated testing, and CI/CD practices.
• Good problem-solving skills and the ability to work independently and collaboratively.

Nice to have

What We Offer

• Experience with Ethereum, EVM-compatible networks, or other blockchain platforms.
• Knowledge of Web3 libraries and tools, such as ethers.js, Hardhat, or Foundry.
• Experience with DeFi, tokenization, NFTs, or other blockchain use cases.
• Familiarity with Layer 2 solutions, cross-chain integrations, and scalability mechanisms.
• Experience with cloud infrastructure and containerization technologies.
• Understanding of smart contract auditing and security best practices.
• The opportunity to work on innovative blockchain solutions.
• A collaborative engineering environment.
• Opportunities for professional development and learning.
• The chance to contribute to the design and implementation of modern distributed systems.

Project details

• Start: flexible
• Remote: hybrid
• Location: Warszawa, Centrum, PL