# Senior QA Engineer - Company: [Shuttlelabs]() - Location: Remote - Team: Engineering - Employment type: Full Time - Posted: January 16, 2026 ## Job description ## Role Summary Genius is building a professional, high-velocity on-chain trading terminal where correctness, determinism, and execution integrity are non-negotiable. This role owns automated testing across both the frontend interface and the on-chain execution layer. The Senior QA Engineer is responsible for designing, implementing, and maintaining automated test coverage that continuously validates UI behavior, backend coordination, and on-chain state transitions. This is an **automation-first role** with real ownership over quality infrastructure. ## Core Responsibilities * Design and maintain automated test suites covering: + Frontend user flows (wallet connection, balances, trading, error states) + Backend coordination and API contracts + On-chain execution flows and state transitions * Build deterministic tests for: + Order submission and cancellation + Slippage enforcement and fee calculation + Transaction lifecycle (submitted, pending, confirmed, reverted) + Balance and position reconciliation between UI and chain * Automate regression coverage for critical trading paths * Validate frontend state against on-chain truth * Create mocks, fixtures, and local chain environments where appropriate * Integrate automated tests into CI/CD pipelines * Triage failures and distinguish product bugs from test instability * Work closely with engineers to enforce testability at the architecture level ## Required Qualifications * 5+ years experience in QA engineering with a strong automation focus * Proven experience testing complex, stateful systems * Strong proficiency with modern test frameworks for: + Frontend automation (e.g. Playwright, Cypress, Selenium) + API and integration testing * Ability to design deterministic, non-flaky tests * Strong debugging skills across frontend, backend, and execution layers * Clear written communication and disciplined documentation ## Preferred Qualifications * Experience testing trading systems, financial platforms, or real-time systems * Familiarity with blockchain execution models and on-chain state * Working knowledge (or fast ramp-up ability) on concepts such as: + Wallets and signing flows + Gas estimation and failures + Slippage, MEV, and partial execution scenarios * Experience running tests against: + Local chains or forks + Testnets and simulated mainnet conditions ## Explicitly Not Part of This Role * Manual-only testing without automation ownership * Writing superficial UI tests that do not validate execution correctness * Treating QA as a downstream or passive function ## Success Criteria * High-confidence releases backed by automated coverage * Early detection of execution-breaking regressions * Low test flakiness and fast CI signal * Clear ownership of quality across frontend and on-chain execution ## Apply [Apply on Shuttlelabs]() Canonical job page: