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codebygk/README.md

Gopalakrishnan (@codebygk)

Senior SDET & QA Automation Expert

Website LinkedIn X Email

Code By GK

👨‍💻 About Me

AI-Powered SDET with over a decade of experience building intelligent, resilient, and self-healing test frameworks.

  • Test automation, AI tooling, and LLM evaluation engineering
  • Building Chrome extensions, web apps, and AI-powered tools
  • Exploring the intersection of QA + AI - RAGAS, RAG pipelines, LLM evals
  • Building in public and Sharing everything that I learn

🛠️ Technologies

AI & Machine Learning

Generative AI LLMs LLM Evaluation

Test Automation - UI

Playwright Selenium Squish Appium WinAppDriver PyWinAuto

Test Automation - API

REST GraphQL RestAssured RestSharp Postman Swagger

Security & Performance Testing

Burp Suite OWASP ZAP Nmap Wireshark FFUF Metasploit Hashcat JMeter

Programming Languages

Python TypeScript Java C#

Frontend Development

React Vue 3 Angular Next.js Tailwind CSS

Backend & Mobile

FastAPI Express.js Flutter

Databases

PostgreSQL SQL Server Neon

DevOps & Infrastructure

Git GitHub Actions Azure DevOps Jenkins Docker Kubernetes Vercel

Frameworks & Miscellaneous

Specflow Behave TestNG NUnit Maven JFrog Log4J Jira Linux

🚀 Products

Product Description Type
NanoRead AI-powered webpage summarizer Web App
DOM2POM Generates Page Object Models from live DOM Chrome Extension
Dorkmine Google dork query generator Web App

More at codebygk.com/products

📦 Resources

Resource Category
XPath Cheatsheet Cheatsheet
CSS Selector Cheatsheet Cheatsheet
Playwright Locator Cheatsheet Cheatsheet

More at codebygk.com/resources

📕 Learnings

Tutorial Category
LLM Fundamentals Artificial Intelligence

More at codebygk.com/learn

📊 GitHub Stats

© 2026 - Code By GK - Build. Automate. Scale.

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  1. dsa-handbook dsa-handbook Public

    A practical handbook of Data Structures and Algorithms problems solved primarily using Python, covering fundamental concepts, problem-solving patterns, and interview-focused challenges.

    Python

  2. test-automation-handbook test-automation-handbook Public

    Test Automation Handbook For SDETs and QA Automation Engineers: Notes, Tips, and Interview Questions on Python, Playwright, Selenium, Pytest, API Testing, Framework Design, and CI/CD.

    Python 1

  3. playwright-handbook playwright-handbook Public

    Playwright handbook: practical notes and examples on setup, locators, assertions, auto-waiting, fixtures, API testing, and CI for end-to-end web test automation by SDETs and QA engineers.

    TypeScript

  4. ai-handbook ai-handbook Public

    AI handbook: practical notes on machine learning, LLMs, prompt engineering, RAG, AI agents, and evaluation, with examples and resources for engineers learning and building with AI.

    2

  5. cybersecurity-handbook cybersecurity-handbook Public

    Cybersecurity handbook for beginners: notes on Linux, Windows, networking, cryptography, reconnaissance, and exploitation, with a learning path toward ethical hacking and bug bounty.

  6. hackerone-bug-bounty-reports hackerone-bug-bounty-reports Public

    Complete collection of bug bounty reports from Hackerone.

    Python 94 27