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EngineeringRemote

Smart Contract QA Engineer, Atlas Oracle

Coin Market Cap Ltd · Remote

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Last seen by MeritLog September 10, 2026Source: LeverSource version: lever-postings-v1

MeritLog read this listing from Coin Market Cap Ltd's Lever job board and last checked it on September 10, 2026.

Source: the employer's Lever job board. Open the original listing for current details.

Job details

Work model
Remote
Salary
Not listed by source
Location
Global; Dubai; Hong Kong; Kuala Lumpur; Taipei; London; Penang; Singapore; Hanoi; Ho Chi Minh

Hiring context

How this role compares at Coin Market Cap Ltd

Coin Market Cap Ltd has 6 live roles in MeritLog’s catalog across 3 job families, and 3 of them are in engineering. 0 of those listings publish a pay range, a disclosure rate of 0%.

Coin Market Cap Ltd concentrates this hiring in:

Counted across the job boards MeritLog tracks, at the time this page was served. Pay comparisons use only listings that publish a complete range in the same currency and period.

What the role asks for

What they're asking for

  • Bachelor’s degree or higher in Computer Science, Software Engineering, or a related field.Education
  • 3+ years of experience in smart contract testing or development, with proficiency in Solidity and mainstream testing frameworks (e.g., Hardhat, Truffle, Foundry).Experience
  • Deep understanding of oracle mechanisms (e.g., Chainlink, Band Protocol) and awareness of common attack vectors (e.g., flash loan attacks, data tampering).Skill
  • Familiar with fundamental blockchain concepts (consensus mechanisms, Gas optimization, event logs, etc.) and tools (e.g., Web3.js, Ethers.js).Skill
  • Capable of developing automated testing scripts using JavaScript/TypeScript, Python, or similar languages.Skill
  • Experience in security testing or code auditing is preferred, with knowledge of common vulnerabilities (e.g., reentrancy, integer overflow) and mitigation methods.SkillPreferred
  • Strong communication skills and a collaborative mindset, adaptable to agile development environments.Skill
  • Hands-on experience in testing or developing oracle projects, with familiarity in decentralized data sources and node networks.SkillPreferred
  • Knowledge of zero-knowledge proofs, TEE (Trusted Execution Environment), and other privacy-related oracle technologies.SkillPreferred
  • Experience with performance testing tools (e.g., K6, Gatling) or on-chain monitoring tool development.SkillPreferred
  • Open-source contributions to blockchain projects on GitHub or demonstrable testing case portfolios.SkillPreferred

Parsed by MeritLog from the employer’s own posting. The full description follows below.

Job description

Core Responsibilities: - Design and implement automated testing frameworks for oracle smart contracts, covering unit tests, integration tests, and end-to-end tests. - Develop and execute security test cases, focusing on core scenarios such as price data feeds, off-chain data retrieval, multi-party consensus mechanisms, and resistance to Sybil attacks. - Simulate various on-chain and network abnormal conditions (e.g., high Gas fees, network latency, node failures) to conduct stress testing and fault tolerance testing. - Work closely with the development team to perform vulnerability scanning and assist in code audits before contract deployment, ensuring no critical security risks. - Create and maintain clear test documentation, defect reports, and quality assessment reports. - Participate in verifying the accuracy of oracle node data and conducting performance benchmarking. - Continuously follow blockchain testing tools and best practices, and introduce new testing methodologies to enhance efficiency.   Requirements: - Bachelor’s degree or higher in Computer Science, Software Engineering, or a related field. - 3+ years of experience in smart contract testing or development, with proficiency in Solidity and mainstream testing frameworks (e.g., Hardhat, Truffle, Foundry). - Deep understanding of oracle mechanisms (e.g., Chainlink, Band Protocol) and awareness of common attack vectors (e.g., flash loan attacks, data tampering). - Familiar with fundamental blockchain concepts (consensus mechanisms, Gas optimization, event logs, etc.) and tools (e.g., Web3.js, Ethers.js). - Capable of developing automated testing scripts using JavaScript/TypeScript, Python, or similar languages. - Experience in security testing or code auditing is preferred, with knowledge of common vulnerabilities (e.g., reentrancy, integer overflow) and mitigation methods. - Strong communication skills and a collaborative mindset, adaptable to agile development environments.   Preferred Qualifications: - Hands-on experience in testing or developing oracle projects, with familiarity in decentralized data sources and node networks. - Knowledge of zero-knowledge proofs, TEE (Trusted Execution Environment), and other privacy-related oracle technologies. - Experience with performance testing tools (e.g., K6, Gatling) or on-chain monitoring tool development. - Open-source contributions to blockchain projects on GitHub or demonstrable testing case portfolios.

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