Brazil
C6 Bank
Grupo Data
Blockchain Quality and Test Engineer
Brazil
São Paulo, São Paulo, Brazil
JavaScriptPythonGo
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What You'll Do
- Create, execute, and document manual and automated test plans and test cases for tokenization systems, smart contracts, and crypto-asset functionalities
- Test end-to-end interactions between distributed systems, APIs, blockchain components, and supporting services
- Actively participate in agile ceremonies, fostering a quality-driven mindset
- Collaborate with product managers, developers, and architects to identify risks and improve processes
- Support release cycles, monitor production behavior, and perform root cause analyses with an investigative approach
- Validate integrations, data flows, and security-related behaviors between blockchain and backend services
Must-Haves
- Proven experience as a QA Analyst / Tester in software development environments
- Familiarity with smart contracts and tools like Hardhat, Truffle, or Remix
- Strong understanding of functional, regression, integration, and performance testing
- Hands-on experience with APIs testing using tools like Postman or Swagger
- Fluent English for documentation, communication, and technical discussions
- Strong analytical skills, curiosity, and clear communication abilities
- Experience with test automation frameworks such as Selenium, Cypress, or Playwright
- Knowledge of blockchain technologies (Ethereum, Hyperledger, Polygon, or similar) and blockchain/crypto security concepts
- Basic programming knowledge in JavaScript, Python, Go, or similar languages
- Previous experience in fintech, financial services, tokenization, or Web3 organizations
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