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Web3 Backend Developer

This vacancy is with one of our clients and is delivered through byteSpark.ai workflow support. Review the full role detail below, then apply directly through our secure application portal.

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Role Overview

We are seeking a highly skilled Web3 Backend Developer with over five years of robust backend engineering experience to join our innovative team. In this role, you will be instrumental in designing, building, and maintaining the critical infrastructure that powers our decentralized applications. You will take ownership of architecting and implementing scalable systems that seamlessly integrate on-chain and off-chain data. Your expertise will be crucial in developing and deploying secure, gas-efficient smart contracts on EVM-compatible blockchains. You will also create resilient backend services and APIs that interact with the blockchain, ensuring our platform is performant, reliable, and secure. This position requires a deep understanding of blockchain principles, smart contract security, and modern backend technologies. Join us to build the future of the decentralized web.

Posted
Aug 2, 2025
Closing
Jan 30, 2026
Location
Dubai, UAE
Salary
AED 25,000 – 40,000 per month
Work mode
Onsite
Job level
Mid Level
Experience
5-8 Years
Domain
Information Technology
Industry
Technology, Information & Media | Web3 Services
Applicants
263

Requirements

  • 5+ years of professional backend development experience (e.g., in Node.js, Go, Python, or Rust).
  • Proven experience designing, developing, and deploying smart contracts using Solidity.
  • Proficiency with Web3 development frameworks such as Hardhat or Foundry.
  • Demonstrable experience building backend services that interact with blockchains using libraries like ethers.js or web3.js.
  • Strong understanding of EVM-compatible blockchains, their architecture, and core concepts.
  • Experience in architecting and building scalable systems that combine on-chain and off-chain data.
  • In-depth knowledge of smart contract security principles and best practices to mitigate common vulnerabilities.
  • Experience creating and maintaining robust APIs (REST, GraphQL) for decentralized applications (dApps).

Desirable

  • Experience with L2 scaling solutions like Polygon, Arbitrum, or Optimism.
  • Familiarity with blockchain data indexing solutions such as The Graph.
  • Experience with cloud infrastructure (AWS, GCP, Azure) and containerization (Docker, Kubernetes).
  • Contributions to open-source Web3 projects.
  • Knowledge of DeFi, NFTs, or DAO protocols and mechanics.