RemoteLeaf Logo
Log in Sign up

Smart Contract QA Engineer (Oracle)

2 weeks, 6 days ago
United Arab Emirates, Malaysia, Singapore, Taiwan, Vietnam, United Kingdom, Hong Kong
Full-time
Mid Level
Blockchain Developer
Quality Assurance and Testing
Agile Gatling GitHub JavaScript K6 Oracle Python TypeScript
Apply Now
CoinMarketCap

CoinMarketCap

CoinMarketCap is the leading source for crypto market data, providing accurate and unbiased information for users to make informed decisions in the cryptocurrency space.

IT Services
11-50
Founded 2013
View All Jobs 18

Description

  • Design and implement automated testing frameworks for oracle smart contracts, including unit, integration, and end-to-end tests.
  • Develop and execute security test cases covering price data feeds, off-chain data retrieval, multi-party consensus, and Sybil attack resistance.
  • Simulate abnormal on-chain and network conditions such as high gas fees, latency, and node failures to perform stress and fault-tolerance testing.
  • Work with the development team to perform vulnerability scanning and support code audits before contract deployment.
  • Create and maintain test documentation, defect reports, and quality assessment reports.
  • Verify the accuracy of oracle node data and conduct performance benchmarking.
  • Continuously evaluate blockchain testing tools and best practices and introduce new testing methodologies to improve 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.
  • Proficiency in Solidity and mainstream testing frameworks such as Hardhat, Truffle, or Foundry.
  • Deep understanding of oracle mechanisms such as Chainlink or Band Protocol.
  • Familiarity with common attack vectors such as flash loan attacks and data tampering.
  • Strong knowledge of blockchain fundamentals, including consensus mechanisms, gas optimization, and event logs.
  • Experience with Web3.js, Ethers.js, and automated testing scripts using JavaScript, TypeScript, Python, or similar languages.
  • Experience in security testing or code auditing is preferred, including knowledge of reentrancy, integer overflow, and mitigation methods.
  • Strong communication skills, a collaborative mindset, and adaptability to agile environments.
  • Hands-on experience with oracle projects, decentralized data sources, and node networks is preferred.
  • Knowledge of zero-knowledge proofs, TEE, or other privacy-related oracle technologies is preferred.
  • Experience with performance testing tools such as K6 or Gatling, or with on-chain monitoring tool development, is preferred.
  • Open-source contributions to blockchain projects on GitHub or a demonstrable testing portfolio is preferred.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

NEORIS

QA Automatizador

NEORIS 5K-10K Internet Software & Services

NEORIS is seeking a QA Automation professional to support software quality initiatives for client solutions within a multicultural digital consulting environment.

Mexico Colombia Ecuador Full-time Mid Level SDET (Software Development Engineer in Test)
Appium CI/CD Confluence DB2 Git Gradle JIRA JMeter K6 Oracle PostgreSQL SQL
2 hours, 45 minutes ago
Point Wild

QA Automation Engineer (Mobile/Android)

Point Wild Internet Software & Services

Point Wild is seeking an experienced QA Automation Engineer (Mobile/Android) to lead automation and testing for its VPN and antivirus products, ensuring reliability across a global cybersecurity portfolio.

Romania Mid Level SDET (Software Development Engineer in Test)
Agile Android Bash CircleCI Cybersecurity Espresso Gradle Jetpack Compose Kotlin Mockito XML
10 hours, 39 minutes ago
Credence Independent

Test Automation Engineer (ACWS)

Credence Independent 1K-5K Internet Software & Services

Credence is hiring a Test Automation Engineer for the Army Contract Writing System (ACWS) within the Acquisition, Training and Readiness (AT&R) PMO to build and run automated testing in a secure federal enterprise environment supporting mission-critical software.

United States Full-time Mid Level SDET (Software Development Engineer in Test)
Agile C# CI/CD DevSecOps Git Java Microservices Python
12 hours, 21 minutes ago
Backblaze

Sr. QA Automation Engineer

Backblaze 251-1K IT Services

Backblaze is hiring a Senior QA Automation Engineer to own end-to-end testing and quality strategy for its cloud storage products across UI and API experiences.

Mexico Colombia Argentina Costa Rica Senior SDET (Software Development Engineer in Test)
Agile GitHub JavaScript Jenkins JIRA Linux Playwright Postman Python Scrum Selenium
12 hours, 51 minutes ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers