Arnaldo A.

# Senior Python Automation & Backend Engineer | Web Scraping | API Integration **$20.00/hr** Need to automate a repetitive workflow, integrate multiple APIs, build a backend service, or extract data at scale? I build reliable **Python automation systems, backend applications, API integrations, QA automation, and high-performance web scrapers** that replace manual work and turn complex processes into scalable solutions. With **4+ years on Upwork and $30K+ in earnings**, I have completed **100+ projects**, helping businesses automate operations, collect and process large datasets, integrate platforms, and deploy production-ready systems. ### ⚡ Expertise **Large-Scale Web Scraping Systems** ✔ Scrapers capable of collecting hundreds of thousands or millions of records ✔ Async/concurrent architecture for faster extraction ✔ Automatic pagination, retries, deduplication, and resume support ✔ CSV, Excel, JSON, databases, Google Sheets, or API output ### 📌 What I Build **Business Process Automation** ✔ Replace repetitive manual workflows with Python automation ✔ Connect APIs, websites, databases, spreadsheets, and cloud services ✔ Schedule automations to run hourly, daily, weekly, or on demand ✔ Deploy automation using Docker and cost-efficient cloud infrastructure **Backend & API Systems** ✔ FastAPI and Flask backend services ✔ REST API integrations and webhooks ✔ PostgreSQL, MySQL, SQLite, and MongoDB integrations ✔ Async workers and data-processing pipelines ✔ Dockerized production deployments **Web Scraping & Data Extraction** ✔ Dynamic and JavaScript-rendered websites ✔ Login-protected websites and authenticated sessions ✔ Playwright, Selenium, BeautifulSoup, and Requests ✔ Proxy rotation and session/cookie management ✔ CAPTCHA integration and anti-bot handling ✔ High-speed asynchronous and concurrent crawlers ✔ Pagination, retries, error handling, and automatic recovery ✔ Large-scale extraction with checkpoint/resume support **QA & Browser Automation** ✔ Automated browser workflows with Playwright and Selenium ✔ End-to-end and regression testing ✔ API testing and validation ✔ Appium mobile automation ✔ Maintainable Pytest automation frameworks **API & Platform Integration** ✔ REST API development and integration ✔ Google Sheets, Drive, and Gmail APIs ✔ Shopify and WooCommerce integrations ✔ Webhooks and third-party SaaS integrations ✔ Automated data synchronization between platforms ### 🛠 Technologies **Python | FastAPI | Flask | Playwright | Selenium | Appium | BeautifulSoup | Requests | Pandas | Pytest | asyncio | PostgreSQL | MySQL | SQLite | MongoDB | RabbitMQ | Docker | Git | GitHub | Linux | AWS S3 | Google Cloud Platform** ### 💡 Why Clients Hire Me ✔ **100+ completed projects** ✔ **4+ years of Upwork experience** ✔ **$30K+ earned on Upwork** ✔ Extensive experience with complex web scraping and automation projects ✔ Clean, maintainable, and documented Python code ✔ Production-ready solutions instead of disposable scripts ✔ Experience handling large datasets and long-running automation ✔ Strong communication and long-term project support ### 👨‍💻 About Me I'm not just a web scraper—I build complete **automation and backend systems** around real business problems. A project might start with collecting data from a website, but I can also build the processing pipeline, connect APIs, store the data in a database or Google Sheets, automate scheduled runs, containerize everything with Docker, and deploy it to the cloud. My goal is simple: **replace repetitive work with reliable software and build systems that continue working as your business grows.** If you need a Python developer for **automation, backend development, API integration, QA automation, or large-scale web scraping**, let's discuss your project.