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Information Technology 🏢 Full Time ⭐️ Verified

Senior Smart Contract Engineer

PolyChain Solutions
San Francisco
Estimated Salary
USD 160.000 – USD 240.000
New
Live Update
3 Juli 2026
Deadline
3 Jul 2027

Job Description

Are you ready to architect the decentralized future? PolyChain Solutions is looking for a visionary Senior Smart Contract Engineer to lead our blockchain initiatives in San Francisco. In this role, you will be at the forefront of Web3 innovation, building secure, scalable, and efficient smart contracts that power the next generation of decentralized applications (dApps).

We are a cutting-edge firm focusing on DeFi, NFTs, and cross-chain interoperability. If you thrive in a fast-paced environment and are passionate about cryptography and distributed systems, we want to meet you.

Why Join Us?
We offer competitive equity, a remote-first culture with a vibrant SF office, and the opportunity to shape the infrastructure of the web.

Responsibilities

  • Design, develop, and audit smart contracts primarily in Solidity and Rust.
  • Implement robust testing suites and security protocols to prevent vulnerabilities.
  • Collaborate with frontend developers to integrate dApps with blockchain backends.
  • Optimize gas usage and ensure high transaction throughput on various chains.
  • Stay updated with the latest Ethereum upgrades and Layer 2 scaling solutions.
  • Mentor junior developers and conduct rigorous code reviews.

Qualifications

  • 5+ years of experience in software engineering with a focus on blockchain technology.
  • Deep knowledge of Solidity, Rust, or Vyper.
  • Experience with tools like Hardhat, Truffle, or Foundry.
  • Strong understanding of cryptographic principles and consensus mechanisms.
  • Excellent problem-solving skills and ability to write clean, maintainable code.
  • Must be legally authorized to work in the United States.

Required Skills

Solidity Rust Web3 Ethereum Smart Contracts DeFi Security Blockchain Smart Contract Audit

Ready to Take This Challenge?

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