Senior QA Engineer

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