Startale Group - Senior Quality Assurance Engineer (Trading)
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Requirements
• 3+ years in QA for web or fintech products, with at least 2+ years focused on test automation and E2E testing. • test automation and E2E testing • Strong experience building and maintaining E2E test frameworks (e.g. Playwright, Cypress, or similar). • E2E test frameworks • Solid experience in API testing and automation (REST, JSON-RPC, or similar). • API testing and automation • Strong JavaScript/TypeScript skills. • Experience testing complex transactional or financial systems. • complex transactional or financial systems • Good understanding of trading concepts: slippage, liquidity, routing paths, execution flow. • Experience designing stable, maintainable automated test suites (CI integration, flakiness reduction). • Nice-to-have • Experience testing DEXs, trading platforms, or financial systems. • Familiarity with blockchain basics, smart contracts, and on-chain transaction flows. • Understanding of AMMs, liquidity pools, and routing algorithms. • Experience with performance/API load testing tools (e.g. k6, Artillery). • Experience using AI tools to improve test generation and coverage.
Responsibilities
• Quality strategy & process: Define and evolve QA standards, release criteria, and quality metrics tailored to a trading platform. Establish best practices for validating execution accuracy, pricing, and API reliability. • Quality strategy & process • Automation (E2E-first approach): • Automation (E2E-first approach) • Design, build, and maintain a scalable end-to-end automation framework for the web app, covering critical user journeys. • end-to-end automation framework • API testing & validation: • API testing & validation • Develop comprehensive automated tests for backend services and APIs. Ensure consistency between API responses and frontend behavior. • Trading logic validation: • Trading logic validation • Validate correctness of execution paths, price impact, and fee calculations across different trading pairs and liquidity sources. • Performance & reliability: • Performance & reliability • Drive API-level load and stress testing for high-throughput scenarios. Validate system behavior under peak traffic and degraded conditions (timeouts, partial failures, node issues). • Test data & environment strategy: • Test data & environment strategy • Design reliable test environments and datasets (mocked or real blockchain interactions), ensuring repeatability of E2E and API tests. • Cross-team collaboration & leadership: • Cross-team collaboration & leadership • Work closely with Engineering and Product to define testable acceptance criteria. Take ownership of QA processes, drive automation adoption, and set quality standards across the team.
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