Hire the best Payment Gateway Integration Specialists in Illinois

Check out Payment Gateway Integration Specialists in Illinois with the skills you need for your next job.
  • $150 hourly
    Hello and thank you for visiting my profile. 👋 I am an advanced VBA developer (Excel) and JavaScript coder (Google Sheets) with over 10 years of experience building high-impact automations, dynamic reporting systems, and seamless system integrations. 🚀 I don’t simply write code — I design efficient, scalable solutions that eliminate manual work, reduce error, and optimize performance across organizations. 🛠️ Examples of recent projects include: 🔵 Excel VBA Expertise: End-to-end payroll automation: Pulls employee data ➔ performs calculations ➔ generates secured PDF paystubs ➔ emails them to recipients automatically. ERP integrations with SAP, NetSuite, and QuickBooks: Extracts real-time financial data and syncs customized reports without manual input. Custom matter management systems: Designed for professional service firms to track billable hours, automate invoicing, and streamline client communications. Inventory management automations: Real-time stock tracking with automated reorder triggers based on dynamic thresholds. OneStream and Tableau automations: Automated data extraction, report refreshes, and dashboard uploads. Power Query transformations: Advanced data cleansing and consolidation across multiple sources for accurate, efficient reporting. 🟢 Google Sheets + JavaScript Automation: Automated client communications: Appointment confirmation and reminder systems sending SMS and email notifications using Twilio and Gmail API integrations. Real-time financial dashboards: Automated feeds from payment processors and bank data into live Google Sheets dashboards. Client intake and workflow routing: Intelligent form responses automatically triage new clients to the appropriate teams and systems. Slack and Drive integrations: Immediate notifications to Slack when key updates occur in Google Drive or Sheets. 💬 Client Feedback: "What we thought would take 20 hours to manage manually now happens automatically in under 10 minutes. The ROI was immediate." "Extremely knowledgeable, highly responsive, and consistently delivers solutions that exceed expectations." Core Specialties: ✅ Excel VBA Process Automation ✅ Google Apps Script (JavaScript) ✅ Advanced Power Query Solutions ✅ Financial Reporting and Dashboard Automation ✅ SAP, NetSuite, QuickBooks System Integrations ✅ Tableau and OneStream Workflow Automation ✅ API Integrations (Email, SMS, CRM, Slack) ✅ Data Transformation and Consolidation ✅ CRM and Case Management Custom Tools Why partner with me? Extensive domain expertise in financial, legal, healthcare, and manufacturing workflows Clear, well-documented coding for maintainability and team scaling Strategic problem-solving approach — anticipating challenges before they arise Data security first 🔒 — with special care for payroll, client confidentiality, and healthcare compliance 📈 If you are seeking efficient, reliable automation and reporting solutions, I would be happy to discuss how I can assist. Let's connect! 🚀
    Featured Skill Payment Gateway Integration
    Pitch Deck
    Graphic Design
    Business Operations
    SAP Manufacturing Execution
    Due Diligence
    Ecommerce SEO
    Tableau
    Vendor Management
    Financial Analysis
    Commodity Management
    Market Research
    Business Analysis
    Logistics Management
    Excel Macros
  • $40 hourly
    Over the years, I have developed a wide range of websites using PHP, and MySQL, HTML, CSS, Javascript, including small, medium and large sites/applications for different types of companies, institutions and organizations. I've worked on CMS, E-commerce, CRM, POS, SCM, account and SaaS applications. I've experience of setting up click funnels and all kind of API and payment solutions integration including Stripe, Authorize.net, Paypal. I also have some experience in the following areas: Wordpress, WooCommerce, OsCommerce, Yii, Ajax, jquery, OOP, Magento, Joomla, CodeIgniter, Hubspot, Mailchimp, Infusionsoft/Keap, Zapier. I don't just write code but I write efficient code and develop professional applications. Over 10 years experience in IT field makes me understand the details about the task in better way. 10 years experience of webmaster and web publishers help me understand the needs of client and end users of the application. All my IT related experience has helped me to develop efficient and professional software/web applications for the last 6 years. I've joined Upwork to explore the market and play my part in the professional development in an efficient manner. Looking forward to work with the best organization/individuals to develop professional applications for the world.
    Featured Skill Payment Gateway Integration
    API Development
    Yii
    PHP
    CodeIgniter
    WooCommerce
    Web Development
    WordPress Development
    HTML
    AJAX
    JavaScript
    WordPress
    CSS 3
    HTML5
    jQuery
  • $60 hourly
    Seasoned developer with expertise with custom applications, e-commerce, pwa, and ios/android development. I'm looking for work in the following areas: - RESTful API and GraphQL - Headless BigCommerce and Stencil Themes - CMS sites - Vue.js/Nuxt applications - Web Core Vitals optimizations
    Featured Skill Payment Gateway Integration
    Payment Processing
    JSON
    DNS
    Nuxt.js
    Google APIs
    API Development
    PHP
    JavaScript
    WordPress
    BigCommerce
    Theme Customization
    Vue.js
    API Integration
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