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Open nowFirst seen 2 days ago

Senior DEX Test Engineer (Exchange / Smart Contract QA)

Hyphen Connect71 open roles

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Your applicationOpen nowSenior DEX Test Engineer (Exchange / Smart Contract QA)Hyphen Connect

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  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

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The clock on this job

Early applications get read.

12.1% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.1%7 days
  4. 19.1%14 days
  5. 35.6%30 days
  6. 52.7%60 days
This job: first seen 2 days ago

The posting

Responsibilities

  • End-to-End Testing: Lead full-lifecycle testing for DEX/CEX platforms, covering integration, UAT, performance/stress testing, and security testing across Web, H5, and Mobile.
  • Smart Contract QA: Conduct onchain white-box testing (unit and integration tests) for core contract modules, including Vaults, Clearinghouse, Settlement, and Oracles.
  • Framework Development: Build and maintain scalable smart contract testing frameworks using Hardhat, Foundry, and related tools.
  • Release & Validation: Execute production deployment verification, regression testing, and pre-launch acceptance to ensure zero-defect rollouts.
  • Cross-Functional Collaboration: Partner with Product and Engineering to review requirements, draft test designs, and uphold overall platform quality.

Requirements

  • Education & Experience: Bachelor's degree in CS, Software Engineering, or a related field with 8+ years of QA experience (with deep expertise across PC, H5, and mobile platforms).
  • Domain Knowledge: 3+ years in CEX/DEX testing, with deep familiarity in order matching, clearing, settlement, and asset flows.
  • Multi-Chain Contract Mastery: Proficient in contract testing for at least two major environments: EVM (Solidity), Sui (Move), or Solana (Rust/Anchor).
  • Technical Stack: Proficient in Foundry, Hardhat, or Truffle for source-code white-box testing, Chainlink oracle integrations, and Web3 wallet connectors (WalletConnect, Web3 Providers).
  • Automation & Risk Controls: Proven experience in end-to-end automation (UI + API + Onchain) and hands-on testing of exchange risk-management systems.

Preferred Qualifications

  • Testing experience with ERC-20, ERC-4626, ERC-7540, ERC-7575, AMMs, or Order Book contracts.
  • Familiarity with smart contract security auditing, common vulnerabilities (reentrancy, access control, math overflows), and testing techniques like fuzzing or formal verification.
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