3 month

Moving into Security Testing is a brilliant pivot. In the 2026 freelance market, "Automation Engineers" are common, but "Security-Aware SDETs" are rare and highly paid.
Since you already have a technical foundation in Java and TypeScript, you can approach security from a "Shift-Left" perspective—automating security checks directly into the code.
3-Month Learning Path: Security & Advanced QA
Month 1: The "Hacker Mindset" & Web Security
Before touching tools, you must understand how applications are attacked.
 * Focus: The OWASP Top 10 (2026 Update). This is the "Bible" of web vulnerabilities.
 * Key Concepts to Master:
   * Injection: SQL Injection and the new Prompt Injection (for AI-integrated apps).
   * Broken Access Control: Testing if a regular user can access admin APIs.
   * SSRF (Server-Side Request Forgery): A massive risk in cloud-native apps.
 * Hands-on Practice: Use "OWASP Juice Shop" (a broken web app). Try to "break" it using what you've learned.
Month 2: Professional Tooling (DAST & SAST)
Now, automate the discovery of those vulnerabilities using industry-standard tools.
 * Tool 1: OWASP ZAP (Dynamic Testing): * Learn to use it as a proxy to intercept requests.
   * Automation: Integrate ZAP into your existing Playwright/Selenium scripts so a security scan runs every time your UI tests run.
 * Tool 2: Snyk (Static Testing): * Use Snyk to scan your GitHub repositories. It finds "vulnerable dependencies" (e.g., an old Java library with a known security hole).
 * Tool 3: Burp Suite (Community Edition):
   * Learn the Repeater and Intruder modules. This is how you manually "fuzz" an API to see if it crashes or leaks data.
Month 3: DevSecOps & Cloud Integration
The goal this month is to make security invisible and automatic.
 * Dockerize Everything: Wrap your security tools (like ZAP) in Docker containers so they can run on any machine.
 * GitHub Actions Security: Build a pipeline where:
   * Code is committed.
   * Snyk scans the libraries.
   * Playwright runs functional tests.
   * OWASP ZAP runs a baseline security scan.
 * Freelance Portfolio: Create a GitHub repo that demonstrates this "Full-Stack Quality Pipeline." This is what you show clients to justify a higher hourly rate.
Your New Freelance "Service Menu"
By the end of these 3 months, you can stop selling "Testing" and start selling "Quality Architecture":
| Service Tier | Included Tools | Client Value |
|---|---|---|
| Standard | Playwright + Rest Assured | "I ensure your features work." |
| Premium | Standard + k6 Performance | "I ensure your site won't crash on launch." |
| Elite | Premium + OWASP ZAP Security | "I protect your user data and your reputation." |
Next Step Recommendation
To start Month 1, I recommend setting up OWASP Juice Shop on your local machine using Docker. It’s the safest and most fun way to learn.
Would you like me to give you the Docker commands and a "Day 1" checklist for your first security hack?

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