QA Developer
Automation, AI-Driven Testing, Blockchain & Payments
I. Role Summary & Mission
Location: Base in Czechia (Remote)
Role Overview
We are seeking a meticulous and proactive QA Developer with strong expertise in modern test automation and a growing focus on blockchain/Web3 application testing, alongside solid grounding in payments and fintech systems more broadly (credit card processing, open banking, transaction flows). This role requires hands-on experience with automation frameworks like Playwright (preferred), Selenium, or Cypress, and increasingly, AI-assisted testing tools and practices. Mobile testing experience (iOS/Android) is valued but secondary to automation, blockchain, and payments-related QA skills.
II. Key Responsibilities
- Develop, execute, and maintain automated test scripts using Playwright (preferred), Selenium, or Cypress, incorporating AI-assisted test generation, self-healing test frameworks, and intelligent test maintenance tools to reduce flakiness and manual upkeep.
- Design and execute test strategies for blockchain-based features, including smart contract behavior, wallet integrations, transaction flows, and on-chain/off-chain data consistency.
- Test payment flows across multiple rails, including credit card processing (authorization, capture, refunds, chargebacks) and open banking integrations (account linking, PSD2/consent flows, payment initiation).
- Validate fintech-specific concerns across all payment types: reconciliation accuracy, idempotency, retries/timeouts, currency/rounding edge cases, failure/error handling.
- Use AI-powered tools for test case generation, exploratory testing assistance, log/anomaly analysis, and visual regression testing (e.g., AI-based visual diffing tools).
- Perform manual and automated testing of web applications, with secondary responsibility for mobile application testing (iOS and Android) as needed.
- Collaborate with development and product teams to understand blockchain, payments, and fintech product features and requirements.
- Utilize the Atlassian suite (Jira, Confluence) for tracking and documentation.
- Manage test cases and plans using Zephyr.
- Use Postman for API testing (blockchain node/RPC endpoints, payment gateway and open banking APIs) and Grafana for monitoring application and infrastructure performance.
- Leverage browser Dev Tools for debugging and identifying issues, including wallet connections, signing flows, and payment checkout flows.
- Continuously evaluate and integrate emerging AI-driven QA tools and practices into the team's testing framework.
- Conduct compatibility and usability testing across different devices and platforms, with a secondary focus on mobile.
III. Required Qualifications
- Proven experience as a QA Developer or similar role, with a strong focus on test automation.
- Proficiency in one or more automation tools: Playwright (preferred), Selenium, or Cypress.
- Experience or strong interest in testing blockchain/Web3 applications (smart contracts, wallets, transaction flows, on-chain data).
- General fintech/payments testing experience — e.g., credit card processing, open banking, or other payment rails — is valued even without blockchain-specific background.
- Familiarity with AI-assisted testing tools and approaches (e.g., AI-generated test cases, self-healing locators, AI-driven visual/log analysis).
- Strong experience with the Atlassian suite (Jira, Confluence) and Zephyr.
- Familiarity with API testing using Postman, including payment gateway, open banking, and/or blockchain node/RPC endpoints.
- Experience with performance monitoring tools like Grafana.
- Solid understanding of browser Dev Tools for debugging and performance profiling.
- Excellent problem-solving skills and attention to detail, especially around financial/transactional correctness.
IV. Why Join us?
We believe in empowering our people and fostering a culture of continuous learning and growth. When you join us, you will get to/ receive:
- Work on high impact projects in an extreme-engineering fast-paced environment.
- Collaborate in fast-paced culture with global exposure.
- Competitive salary and performance-based bonus structure.
- Flexible Working Conditions: enjoy the flexibility of remote work and adaptable hours.
If you are passionate about software quality and eager to contribute to the success of a dynamic team, we encourage you to apply for this exciting opportunity. Join us in shaping the future of technology through innovation and excellence in software testing and quality assurance.