Hire the Best Selenium Developers in Illinois

Network support engineer Web client-server solutions Selenium web scraping, content testing Back and front ends web applications Ajax, Perl CGI, JavaScript, jQuery, mod_perl, rrdtools MySQL design and management. Web interfaces to manage SQL databases (AJAX+JavaScript+Perl back end) Apache and Squid administration. Network automated monitoring tools development via SNMP or telnet, SSH Linux, FreeBSD management and support. Network protocol troubleshooting PIM, OSPF, TCP/IP with Nagios, Wireshark, Zabbix, Tcpdump, Multicast. Device management and remote development via CLI Automated third-party software testing, web application testing (Selenium), network equipment functionality testing Linux OS, FreeBSD, Linux/FreeBSD networking, netfilter, linux router/firewall, iptables, ipfw. Linux (OpenSUSE, Fedora, Debian, Ubuntu), FreeBSD supporting and maintenance. Monitoring via SNMP and troubleshooting IP network equipment. Virtual servers installation and management (Windows/Unix) on Vmware and VirtualBox Configuration backups, various traps/notification collection from UPS, Cisco, Alcatel-Lucent, TACACS Authentication

I build AI-native SaaS web and mobile applications, specializing in ETL pipelines, data extraction, web scraping solutions, automation systems, and REST APIs using React, React Native, Next.js, Python, Node.js, TypeScript, Tailwind CSS, Supabase, Claude API, OpenAI API. Clean code, production-ready project structures, mobile-first, full responsive interfaces, deployed to the cloud(Vercel, Netlify, DigitalOcean, AWS, etc.) I specialize in building ad scaling high-performance web and mobile applications, with deep expertise in e-commerce platforms, AI-powered tools, and intelligent chatbots. From concept to production, I design and develop scalable solutions that integrate AI to enhance performance and deliver seamless user experiences. With strong full-stack expertise, I can rapidly transform your idea into reliable, production-ready products and tackle complex technical challenges with confidence. I also design and build scalable data systems that extract, process, and deliver clean, reliable data - even from complex, protected, and unstructured sources. From high-volume scraping pipelines to fully automated workflows, I create production ready solutions that run continuously, handle scale, and integrate directly into your business systems. I use Claude Code as my primary development workflow - it allows me to deliver production-quality applications 2-3x faster than traditional development without sacrificing code quality. What I build: ✅ React / Next.js development (SEO-friendly, fast-loading app) ✅ React Native Expo Mobile Apps for iOS and Android ✅ Backend development with Python, Node.js, Express.js, and NestJS ✅ TypeScript-first full-stack applications ✅ AI-Powered SaaS & MVP Development (Claude, OpenAI) ✅ Web scraping, data extraction, web crawling, data mining ✅ Browser automation, workflow automation, business process automation ✅ Data pipelines, ETL workflows, large-scale data processing ✅ API integrations, API scraping, reverse engineering ✅ Data cleaning normalization, deduplication, validation, enrichment ✅ Excel, CSV, and Google Sheets automation ✅ Dashboards, reporting systems, analytics pipelines ✅ Cloud deployment and automation infrastructure(AWS, Google Cloud) My skills include: ⚙️ Frontend Development: Next.js, React, TypeScript, JavaScript | Tailwind CSS, SCSS, CSS3, HTML, HTML5 | GSAP, Chart.js, AG Grid, Three.js, Bootstrap ⚙️ Mobile App Development: React Native, Expo, iOS Development, Android Development ⚙️ Backend Development: Python (Django, Flask, FastAPI) | Node.js (Express.js, Nest.js) | REST APIs, GraphQL, OpenAI & Claude & Vertex &Gemini & Kie AI API Integration ⚙️ Shopify & Automation: Shopify themes & Shopify apps | API integrations(payments, CRMs. third-party services) ⚙️ Web Scraping & Data Extraction: Playwright, Puppeteer, Selenium | Requests, httpx, curl_cffi, tls_client | Custom header and cookie management, CSRF and token handling | Reverse-engineered private APIs and GraphQL endpoints | Scrapy, extensions | Beautiful Soup, lxml, parsel | Persistent contexts, cookie reuse, session warming | Pagination, infinite scroll, lazy-loaded content ⚙️ Anti-Bot & CAPTCHA: Cloudflare, DataDome, PerimeterX, Akamai Bot Manager, Kasada | hCaptcha, reCAPTCHA v2/v3 | 2Captcha, Anti-Captcha, CapSolver integration ⚙️ Proxy & infrastructure: Bright Data, Oxylabs, Smartproxy | Residential, mobile, ISP, and datacenter pools | Custom rotation logic with health checks and ban detection | Distributed scraping across multiple workers, queues, and regions | Dockerized scrapers, autoscaling on Cloud Run ⚙️Excel, CSV & Google Sheets Automation: Excel and CSV reports with openpyxl, xlsxwriter, pandas | Google Sheets API and gspread - live dashboards, auto updating reports, tow way database sync | Apps Scripts ⚙️ Database & Infrastructure: Supabase, PostgreSQL, MongoDB, MSSQL | Docker, AWS, Azure, Heroku | GitHub, CI/CD pipelines ⌚ How projects work for web scraping and data extraction: Sample first. I usually start with a small sample run - a few hundred records or a single category - delivered in a few days so you can validate quality before committing to the full build. From there, we move into the production system with clear milestones and fixed scope. Delivery goes straight into your environment" S3, GCS, BigQuery, Postgres, a Google Sheets, or a CSV How I work; ✅ I'll tell you in the first conversation if it's fit. if it's not, I'll say so and point you elsewhere ✅ Claude Code as my primary workflow ✅ Clear communication and steady updates ✅ Realistic estimates ✅ Code that another developer can easily pick up Keywords Next.js, React Native, Node.js, TypeScript, Supabase, PostgreSQL, BigQuery, SaaS, Web development, Back-end development, Front-end Development, Expo, web scraping, data extraction, automation, Python, Playwright, Selenium, Puppeteer, Scrapy, scraping expert, data pipelines, ETL, API integration, API reverse engineering, Excel, Google Sheets, CSV, Claude, OpenAI, RAG

Senior Software Engineer with 8+ years building scalable applications for Fortune 500 companies including Bloomberg and JP Morgan Chase. Specialized in React, Node.js, and AWS solutions that serve 100k+ users. ✅ Led teams of 5-7 engineers at Bloomberg LP ✅ Reduced system costs by 83% through automation ✅ Built OAuth solutions used across 10+ applications ✅ AWS Certified Solutions Architect ✅ Available for long-term projects and ongoing partnerships Ready to bring enterprise-level expertise to your project. Let's discuss your requirements!

Yuri is a versatile consultant with a unique skillset that blends the technical expertise of a developer with the financial acumen of a CPA accountant. With extensive experience in Python, VBA, Excel, Google Scripts, API Integrations, and Web Scraping, Yuri brings a wealth of knowledge to any consulting engagement. Yuri has worked on a range of exciting projects that include VBA time-saving solutions, Excel automation, web scraping, API setups, web browser automation, mass emailing, and website archiving. Yuri's proficiency in these areas has enabled clients to streamline their business processes, improve efficiency, and achieve better outcomes. Whether you are looking to automate routine tasks, analyze data, or integrate disparate systems, Yuri has the skills and expertise to help you achieve your goals. Yuri's ability to bridge the gap between programming and accounting makes him an invaluable resource for businesses seeking to optimize their financial operations. If you are looking for a consultant who can help you take your business to the next level, look no further than Yuri. With his unique skillset and track record of success, Yuri is the consultant you can trust to deliver results.

⭐️ Experienced Full Stack Developer 💡 Scalable, performance-driven problem solver. ✅ Skilled in backend & API integrations. ✅ 25+ years of experience ✅ Excelling in delivering Fortune projects I am a professional developer mainly focused on backend. I like interesting and complicated things. But the most interesting and challenging part - a creation of site's logics. Indeed I'm very familiar with PHP, WordPress, CodeIgnitor and Laravel Frameworks. I'm hungry for a new projects - always glad to talk to the customers. If you need help of a professional - let me know. My technical expertise includes - Web Development (PHP, Wordpress, Laravel, Codeigniter, CakePHP, ASP.NET Core, jQuery, AJAX, Node.Js, Angular.Js, Express, Vue.js, Shopify, Wix, JS, AJAX) - Mobile Development (Android, IOS, Cordova, Flutter, React-Native) - Web-servers setup (Linux+IIS+PostgreSQL+Nginx, CloudLinux) - Internet business/UI/UX/design consulting – Web Scraping (lxml, scrapy, BeautifulSoup, selenium) – Data Analysis (scipy, numpy, pandas, matplotlib) – Machine Learning and Deep Learning (sklearn, keras,tensorflow) I have maintained, developed and launched multiple projects from scratch, carrying the development of its' back-end and front-end codebases. Personal qualities are: - Enthusiastic - Responsible - Only latest versions and technologies - Fast-learning - Purposeful Seeking complex web works at Upwork, something interesting, something creative!

Dynamic and results-driven Software Developer with extensive experience designing and implementing internal and external business applications across diverse platforms. Proficient in full-stack development, with a proven track record of enhancing operational efficiency and replacing legacy systems with robust, scalable solutions. Expertise spans software development, IT support, network and database administration, and training for both users and developers.