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ALLPS Linkedin · Posted 1mo ago

Blockchain Engineer

Switzerland

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Indexed description

Job Title: Blockchain Engineer (2–5 Years Experience)

Location: Remote

Experience: 2–5 Years

Employment Type: Full-time

About The Role

We are looking for a Blockchain Engineer with 2–5 years of experience to build secure, scalable, and high-performance blockchain solutions. You will work on smart contracts, decentralized applications and blockchain integrations while collaborating with cross-functional teams.

Key Responsibilities

  • Design, develop, and deploy smart contracts and blockchain-based applications
  • Build and maintain decentralized applications (DApps)
  • Integrate blockchain solutions with backend systems and APIs
  • Optimize smart contracts for performance, security, and gas efficiency
  • Perform testing, debugging, and code reviews
  • Identify and mitigate security risks and vulnerabilities
  • Stay updated with blockchain trends, tools, and best practices
  • Collaborate with product, engineering, and security teams

Must-Have Skills

  • 2–5 years of hands-on experience in blockchain development
  • Strong understanding of blockchain fundamentals (distributed ledgers, consensus mechanisms, cryptography)
  • Proven experience with smart contract development (Solidity mandatory)
  • Hands-on experience with Ethereum or EVM-compatible blockchains
  • Proficiency in Web3.js, Ethers.js, or similar Web3 libraries
  • Strong programming skills in JavaScript / TypeScript (Python, Go, or Rust is a plus)
  • Experience with REST APIs and backend integration
  • Solid understanding of data structures, algorithms, and system design
  • Experience with Git and version control systems

Good-to-Have Skills

  • Experience with DeFi protocols, NFTs, DAOs, or Web3 products
  • Knowledge of Layer 2 scaling solutions (Polygon, Optimism, Arbitrum)
  • Familiarity with smart contract security audits and best practices
  • Exposure to IPFS, oracles (Chainlink), or cross-chain solutions
  • Experience with Solana, Hyperledger, or other non-EVM blockchains
  • Knowledge of cloud platforms (AWS, Azure, GCP)
  • Experience with CI/CD pipelines and DevOps practices
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