Mid QA Engineer
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Job Description
QA Engineer ensuring quality across Rails API and React frontend in cloud-based dental practice solutions. Collaborating with engineers for test strategy and automation.
Responsibilities:
- Design, build, and maintain an automated test suite covering E2E, integration, and API-contract layers across the Rails backend and React frontend
- Own and maintain Playwright E2E test suites covering critical user journeys (scheduling, provider workflows, huddle boards, patient lookups, authentication)
- Collaborate with engineers on RSpec integration and unit test coverage — reviewing test quality, identifying gaps, and contributing tests where needed
- Define and enforce quality gates in the CI/CD pipeline: test pass thresholds, coverage floors, Brakeman/bundler-audit clean runs, and ESLint/RuboCop compliance
- Develop and maintain test data strategies using synthetic data exclusively — patient names with -SYN suffix, IDs with SYNTHETIC_ prefix — ensuring no PHI enters any test artifact
- Validate data mapping correctness across dental practice management systems (DPMS): Orthotrac, PracticeWorks, SoftDent, WinOMS, and others
- Write and maintain VCR cassettes and WebMock stubs for external HTTP integrations, ensuring tests remain deterministic and do not call live services
- Review and triage Brakeman security findings, coordinating remediation with engineers before PRs are merged
- Perform exploratory testing against staging environments, filing clear, reproducible bug reports with steps, environment context, and expected vs. actual behavior
- Maintain and evolve the QA section of the AI Code Review Checklist as the team's practices mature
- Participate in pull request reviews with a quality and compliance lens: PHI exposure, OWASP Top 10 risks, hardcoded secrets, overly broad rescue blocks, invalid dependencies
- Collaborate with frontend-focused engineers to ensure React components and TanStack Query state management are covered by meaningful tests
- Contribute to and validate API contract tests as the Rails API evolves
- Participate in AI-augmented development workflows, reviewing AI-generated tests for correctness, hallucinated mocks, and phantom assertions
- Proactively update test documentation, coverage reports, and QA runbooks when behavior or architecture changes
Requirements:
- Proven experience designing and maintaining automated test suites across backend APIs and frontend UIs
- Hands-on Playwright experience for E2E testing of modern React applications
- Solid understanding of RSpec — able to read, write, and review unit/integration specs confidently
- Strong knowledge of test data management: fixture design, factory patterns (FactoryBot), synthetic data conventions
- Experience with HTTP stubbing strategies (WebMock, VCR, or equivalents) for reliable integration tests
- Familiarity with CI/CD pipelines and the role of automated quality gates (GitHub Actions or equivalent)
- Comfortable reading Rails application code and React component code to understand behavior and identify testable contracts
- Working knowledge of REST API design — able to test endpoints using request specs or API clients independently of the UI
- Familiarity with Git-based workflows, pull requests, and conventional commits AI-Augmented Development (Required)
- Hands-on experience using AI coding assistants (e.g., Claude Code, GitHub Copilot, Cursor) for test generation and coverage analysis
- Clear understanding of the Human → AI → Human review loop — AI generates, humans validate; no phantom assertions or hallucinated mocks ship
- Ability to critically evaluate AI-generated tests for correctness: mock contracts that match real API behavior, assertions that would actually catch regressions
- Awareness of AI traceability practices: commit trailers, review checklists, prompt hygiene HIPAA & Compliance Awareness (Required)
- Strong understanding that Protected Health Information (PHI) must never appear in tests, test fixtures, VCR cassettes, logs, screenshots, or CI artifacts
- Discipline around synthetic data usage — no real patient names, DOBs, addresses, or record IDs in any test asset
- Ability to identify PHI exposure risks in test code during PR review
- Comfort working exclusively with mock or synthetic data environments
- Awareness of OWASP Top 10 and secure coding patterns relevant to test design (e.g., authentication bypass risks in test setup)
- Preferred / Nice-to-Have Qualifications
- Experience testing healthcare or dental SaaS applications
- Familiarity with dental practice management system data models or healthcare data normalization workflows
- Experience with Azure Cosmos DB data structures and how to assert against document-shaped responses
- Prior work in a TDD/BDD environment with red-green-refactor discipline
- Experience with performance or load testing (k6, Locust, or equivalent) for API endpoints
- Familiarity with Kamal-based deployment workflows and containerized staging environments
- Experience writing or maintaining Cucumber/Gherkin feature specs in collaborative QA environments
- Healthcare data exchange familiarity (HL7, FHIR, or dental-specific formats)
- Playwright component testing or visual regression testing experience
Benefits:
- Work remotely Monday - Friday, 40 hours a week (no weekends)
- Health Care Reimbursement
- Active Lifestyle Reimbursement
- Quarterly Home Office Reimbursement
- Did we mention it's REMOTE?!!
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