Pre-launch · In development · ZYNC is not listed · No live price, market cap, or holders · ZyncSwap is not a live exchange
ZYNCCOIN
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Hiring · Remote · Pre-launch product

Senior Blockchain Developer — Remote

Solidity · EVM · Hardhat/Foundry · TypeScript

Join the engineering team building ZyncSwap, a non-custodial Web3 trading platform currently in active development.

Apply with name, email, LinkedIn, GitHub/portfolio, and resume. We reply at james@zynccoin.com.

Apply for this roleCompany

Responsibilities

Smart contracts, planned token and swap logic, wallet/RPC integrations, testing, and audit readiness.

  • Design, develop, test, and prepare secure EVM contracts for token and trading flows.
  • Integrate contracts with backend services, frontend, wallets, and RPC providers.
  • Write unit, integration, and deployment tests.
  • Review architecture for security, gas, and maintainability.
  • Support audit readiness and production troubleshooting when we deploy.

Requirements

Strong Solidity and EVM experience; production contract work; testing; security-aware delivery.

  • Strong Ethereum / EVM development experience.
  • Advanced Solidity and smart-contract testing skills.
  • Experience with Hardhat, Foundry, ethers.js, viem, or similar.
  • Ability to work full-time with BST overlap.

Web3 experience

Required.

Process

Profile review → GitHub technical assessment → technical interview with a stack specialist → final review.

  1. 01

    Profile review

    We read your LinkedIn, GitHub/portfolio, and resume against the role stack.

  2. 02

    GitHub technical assessment

    A practical task in the role’s stack. We look at judgment, clarity, and production habits — not trick questions.

  3. 03

    Technical interview with a stack specialist

    Remote conversation on past work, ZyncSwap scope, and how you would ship in this codebase.

  4. 04

    Final review

    We decide and reply by email at james@zynccoin.com.

Engagement

Remote · Full-time / long-term. 40 hours / week. BST (UTC+1) core hours — expect meaningful overlap with the UK / BST team during the workday.

About the role

You will design and maintain the on-chain components that ZyncSwap will use after launch. ZYNC is not live and is not listed. This role is to build and test that stack now, not to operate a live staking product.

Nice to have

  • DEX, AMM, or token-standard production work.
  • Layer 2, bridging, or indexer experience.
  • Prior audit or security review collaboration.

Compensation

$110,000–$180,000 USD / year · ZYNC grant