Senior Software Engineer, Quality Engineering (SDET)

Design and build testing architecture, automation frameworks, developer tooling, CI/CD integrations, and AI-powered quality systems across backend services, frontend applications, blockchain integrations, and trading infrastructure.

Responsibilities

• Design and evolve the quality engineering platform
• Define unit, integration, contract, API, and end-to-end testing architecture
• Build reusable testing frameworks, shared libraries, fixtures, and developer tooling
• Design deterministic test data generation and management strategies
• Build AI-assisted quality engineering workflows
• Build LLM-based systems for test generation, maintenance, failure analysis, root cause identification, and regression detection
• Build automated test suites for APIs, backend services, frontend applications, and blockchain interactions
• Integrate automated testing into CI/CD pipelines and implement quality gates
• Optimize test execution through parallelization, test selection, caching, and infrastructure improvements
• Validate trading flows, order matching, execution paths, routing logic, fee calculations, and settlement
• Verify consistency between backend services, blockchain state, and frontend behavior
• Develop load, stress, endurance, and resilience testing
• Validate system behavior during failures, timeouts, and outages
• Improve system observability and production issue investigation
• Collaborate with Backend, Frontend, Blockchain, DevOps, and Product teams
• Mentor engineers on automated testing and quality engineering

Requirements

• Write clean, maintainable, production-quality software
• Build scalable automation frameworks and reusable testing libraries from scratch
• Have 5+ years of experience in SDET, quality engineering, test automation, or software engineering
• Have strong JavaScript or TypeScript skills
• Have experience with Playwright or Cypress
• Have experience testing REST, JSON-RPC, GraphQL, WebSocket, or similar APIs
• Have experience integrating automated testing into CI/CD pipelines
• Have experience with Docker and containerized testing environments
• Have strong communication and cross-disciplinary collaboration skills