I am Khang Nguyen, I am an ** Automation Developer** specializing in web scraping, API reverse engineering, and building commercial automation tools.

Currently available for freelance/contract work focused on Python automation, data extraction, and workflow optimization.

📍 Vietnam | 📧 duykhang5687@gmail.com | ✍️ Dev.to

Core expertise:

• Reverse-engineering private APIs (mobile apps, web platforms)
• Building production web scrapers with Selenium, Playwright, Python requests
• Developing Apify Actors for commercial automation workflows
• Automating vendor portals and business processes (90%+ time savings for clients)

Tech stack

• Primary: Python (Selenium, Playwright, requests, BeautifulSoup)
• Tools: Burp Suite, Charles Proxy, Chrome DevTools, Apify SDK
• Secondary: Flutter (mobile app development hobbyist)
• AI-assisted development: Cursor, Kiro.dev, with MCP servers

Co-Creator, TheDoor (Apify Marketplace) | apify.com/thedoor
Built and launched 5 commercial Apify Actors serving 52 monthly active users. Extracted 50K+ Facebook group posts/month with rotating proxies, rate limiting, and structured error handling for near-zero failure rates.

Freelance Clients:

• Home Depot vendor portal automation: Reduced daily SKU image upload time from 8 hours to <1 hour for 300+ items
• Dropbox asset pipeline: Cut retrieval + organization time from 3 hours to 5 minutes with parallel downloads

Reverse-engineered the private API of an 80M+ download social networking app by intercepting encrypted mobile traffic (Burp Suite), then built a Python client that spoofs device telemetry to emulate official app functions.

Status: Open to freelance Python automation projects and full-time opportunities
Response time: Usually within 24 hours