Hyphen Connect Limited logo
Est. Monthly
Estimated €13,890
Posted August 28, 2026 · 1 day agoLast seen August 26, 2026Est. expiry October 2, 2026

Blockchain Developer

Blockchain Developer (Smart Contracts)
How this salary compares
Salary Context: Blockchain Developer

Hover or tap a row for full statistics (EUR / month on this chart).

Salary analysis

Compared with the selected benchmark ("All roles in Hong Kong, China"), this listing's salary midpoint is about 92% lower. The offer sits below the benchmark range (€13,890–€13,890). Range-width comparison is limited because one of the salary bands is incomplete. This benchmark is based on 1 comparable listings.

Monthly salary comparison for Blockchain Developer
MarketLower bound (25th percentile)MedianUpper bound (75th percentile)
All roles in Hong Kong, China€13,890/per month€13,890/per month€13,890/per month
About the role

Job Description: Design and develop blockchain-based trading platforms, including decentralized exchanges (DEX), automated market makers (AMM), or order-book systems. Write, test, and deploy secure smart contracts using platforms such as Ethereum, Binance Smart Chain, Solana, or other blockchain networks. Integrate blockchain solutions with front-end and back-end systems to enable seamless trading functionality. Implement security best practices to protect against vulnerabilities, including reentrancy attacks, front-running, and unauthorized access. Optimize smart contracts for gas efficiency and system performance to handle high-frequency trading scenarios. Collaborate with cross-functional teams, including traders, product managers, and DevOps engineers, to define system requirements and ensure alignment with business goals. Ensure compliance with relevant financial regulations and standards for trading systems. Monitor and maintain blockchain nodes, ensuring uptime and reliability of the trading infrastructure. Stay updated on emerging blockchain technologies, protocols, and industry trends to enhance system capabilities. Qualifications: Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience). 3+ years of experience in blockchain development, with a focus on building decentralized applications (dApps) or trading systems. Proficiency in programming languages such as Solidity, Rust, or Go for smart contract development. Strong understanding of blockchain protocols (e.g., Ethereum, Solana, Polygon) and consensus mechanisms (e.g., PoW, PoS). Experience with trading system concepts, including order matching, liquidity pools, or market-making algorithms. Familiarity with DeFi protocols, token standards (e.g., ERC-20, ERC-721), and interoperability frameworks. Knowledge of cryptographic principles, including public/private key infrastructure and hashing algorithms. Experience with tools like Truffle, Hardhat, or Foundry for smart contract development and testing. Understanding of front-end and back-end integration (e.g., Web3.js, Ethers.js, REST APIs). Strong problem-solving skills and attention to detail in writing secure and efficient code. Excellent communication and collaboration skills to work in a fast-paced, team-oriented environment. Nice to have: Experience with layer-2 scaling solutions (e.g., Optimism, Arbitrum) or cross-chain bridges. Knowledge of financial markets, trading strategies, or algorithmic trading. Familiarity with cloud platforms (e.g., AWS, Azure) and containerization (e.g., Docker, Kubernetes). Contributions to open-source blockchain projects or active participation in blockchain communities. Understanding of regulatory frameworks for cryptocurrencies and trading platforms (e.g., KYC/AML compliance).

Job Details

Responsibilities

  • Design and develop blockchain-based trading platforms.
  • Write, test, and deploy secure smart contracts.
  • Integrate blockchain solutions with front-end and back-end systems.
  • Implement security best practices.
  • Optimize smart contracts for gas efficiency.
  • Collaborate with cross-functional teams.
  • Ensure compliance with financial regulations.
  • Monitor and maintain blockchain nodes.
  • Stay updated on emerging technologies.

Requirements

  • Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
  • 3+ years of experience in blockchain development, with a focus on building decentralized applications (dApps) or trading systems.
  • Proficiency in programming languages such as Solidity, Rust, or Go for smart contract development.
  • Strong understanding of blockchain protocols (e.g., Ethereum, Solana, Polygon) and consensus mechanisms (e.g., PoW, PoS).
  • Experience with trading system concepts, including order matching, liquidity pools, or market-making algorithms.

Skills & Technologies

SolidityRustGoEthereumSolanaPolygonWeb3.jsEthers.jsTruffleHardhatFoundryREST APIs

Education Level

Bachelor
Seen 3 days agoPartial Schema
Hyphen Connect Limited logo
Hyphen ConnectLimited · 3 open roles
Top locations: Remote - Europe · 2 · Remote - Global · 1
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Current open roles at Hyphen Connect Limited on JobCrawls
LocationActive listings
Remote - Europe2
Remote - Global1
Current role mix at Hyphen Connect Limited on JobCrawls
Role typeActive listings
Backend Engineer2
Chain Protocol Engineer1
Current role-level mix at Hyphen Connect Limited on JobCrawls
Role levelActive listings
Mid-Level2
Senior1

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