Test Planning and Design:

• Deeply understand DEX product requirements (user interface, trading logic, liquidity pools, token swaps, gas fee mechanism, cross-chain functionality, etc.) and smart contract features.
• Develop clear and comprehensive test plans, test cases, and test strategies covering functional, UI/UX, API, security, performance, and compatibility testing.
• Design specialized test scenarios for complex on-chain interactions (e.g., transaction signing, authorization, contract invocation, event listening).
• Test Execution and Defect Management:
• Manually perform functional testing, UI testing, and compatibility testing (across different browsers, devices, and wallets such as MetaMask, Trust Wallet, WalletConnect, etc.).
• Key responsibility: Execute end-to-end tests involving smart contract interactions, validating on-chain transaction correctness, state changes, and event triggers.
• Use blockchain explorers (e.g., Etherscan, BscScan) to verify on-chain transaction details and contract states.
• Set up environments and conduct testing on testnets (e.g., Goerli, Sepolia, BSC Testnet).
• Precisely document, track, and manage defects (using tools like Jira), drive issue resolution, and verify fixes.
• Perform regression testing to ensure fixes and new features do not impact existing functionality.

Security Testing:

• Understand common DEX security risks (such as reentrancy attacks, front-running, price oracle manipulation, authorization vulnerabilities, etc.).
• Design and execute security-related test cases to verify user asset protection and smart contract security boundaries.
• Collaborate with security teams or audit reports to validate fixes for known vulnerabilities.
• Test the security of wallet connections, private key/mnemonic management (simulated scenarios), and transaction signing processes.

Performance and Stress Testing:

• Design and execute performance tests to assess front-end page load times, API response times, and concurrent processing capabilities.
• Key responsibility: Design and execute tests simulating high on-chain load scenarios (e.g., gas fee volatility, network congestion transaction success rates, mempool handling) to evaluate system stability and user experience under stress.
• Analyze performance bottlenecks and propose optimization recommendations.

Test Automation:

• Develop, maintain, and execute web UI automation test scripts (using Selenium, Cypress, Playwright, etc.).
• Develop, maintain, and execute API automation test scripts (using Postman, RestAssured, Pytest, etc.).
• Core value: Explore and implement automation testing frameworks and scripts for blockchain node interactions, smart contract calls, and on-chain state verification (potentially involving Web3.js, ethers.js, Hardhat, Foundry, etc.).
• Integrate automated tests into CI/CD pipelines to enable rapid feedback.

Collaboration and Communication:

• Work closely with product managers, development engineers (front-end, back-end, blockchain/smart contract developers), and UI/UX designers to understand requirements, participate in design reviews, and ensure testability.
• Collaborate with DevOps engineers to maintain test environments (including testnet nodes).
• Clearly report test progress, risks, and quality status.
• Participate in the release process and perform final verifications before deployment.

Required Skills and Experience:

• Bachelor’s degree or higher in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• Over 3 years of experience in software testing or test development.
• Proficient in software testing theories, methodologies, processes, and common tools.
• Skilled in at least one programming language (e.g., JavaScript/TypeScript, Python, Java) with the ability to write automation test scripts.
• Extensive experience in web application and API testing.
• Familiar with Linux operating systems and command-line operations.
• Familiar with Git version control.
• Strong analytical, problem-solving, and logical thinking skills.
• Strong quality awareness, responsibility, and attention to detail.
• Excellent communication skills and team collaboration spirit.
• Blockchain/DEX Domain Knowledge (Core Requirements):
• Deep understanding of blockchain fundamentals (consensus mechanisms, blocks, transactions, gas, wallets, account models, etc.).
• Practical experience using leading DEXs (e.g., Uniswap, PancakeSwap, SushiSwap, Curve) and understanding their interaction workflows.
• Familiarity with Web3 application interaction processes (wallet connection, signing, transaction submission, status confirmation).
• Proficient in using at least one major blockchain explorer (e.g., Etherscan, BscScan).
• Experience testing on testnets (e.g., Goerli, Sepolia, BSC Testnet).
• Understanding of smart contract basics and common vulnerability types (plus: experience using tools like Hardhat, Foundry, Truffle for basic interactions or testing).
• Understanding of common Web3/DEX security risks.