The SDET Blueprint

You already understand how software breaks. What the job market demands now is turning that testing instinct into automated code that runs by itself on every commit. The SDET Blueprint is a 30-day, hands-on engineering roadmap from Manual QA to SDET (Software Development Engineer in Test) using the three tools modern hiring teams look for: Playwright, TypeScript, and CI/CD with GitHub Actions. You will not just read about a framework—you will build an enterprise-ready portfolio project chapter by chapter, complete with a live cloud test report you can send directly to hiring managers. What You Will Build in 30 Days: • Days 1–3 (The Automation Mandate & Playwright Advantage): Set up VS Code, Node.js, Playwright Codegen, and the forensic Trace Viewer. • Days 4–7 (Code-Light Foundations): Master the Minimum Viable Syntax of TypeScript—variables, async/await, loops, conditionals, and reusable arrow functions. • Days 8–14 (Core Mechanics & Stable Locators): Replace brittle XPaths and hard sleeps with resilient role-based locators (getByRole), auto-waiting, iFrame penetration, and multi-tab flows. • Days 15–20 (API Testing & Network Interception): Use Playwright's native request context to set up test data in milliseconds, bypass UI logins via API token injection, and mock 500 server errors with page.route(). • Days 21–25 (Building the Enterprise Framework): Architect a scalable Page Object Model (POM), global storageState authentication, JSON Data-Driven Testing (DDT), and pixel-to-pixel visual regression checks. • Days 26–28 (CI/CD Pipelines & Reporting): Build a zero-touch GitHub Actions YAML pipeline with secure GitHub Secrets and live GitHub Pages test reports. • Days 29–30 (The Portfolio & Interview Pivot): Rewrite your QA resume for SDET ROI, structure your GitHub portfolio, and master architectural SDET interview questions. Who This Book Is For: • Manual testers and QA analysts moving into test automation. • Career changers and bootcamp graduates who want a structured, day-by-day execution plan. • Testers who have dabbled in scripts but want to engineer a framework that survives UI redesigns.