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I’m a senior software developer with 12+ years of experience building complete solutions. My work focuses on real-world integrations, automating business workflows, and connecting systems that normally don’t communicate. API Integration & Automation I’ve built end-to-end integrations for platforms such as: • Authorize.Net – ACH/credit card workflows, recurring billing, subscription engines, customer profiles • Shopify – GraphQL Admin API integrations, product and inventory sync, fulfillment workflows, reusable integration modules • Twilio – SMS automation, 10DLC compliance, sender profiles, message scheduling • DocuSign – embedded signing, routing workflows, signature tracking • Acumatica – inventory, orders, reporting, custom endpoints Most of my work centers around solving operational challenges: automating payments, syncing inventory, processing orders, handling messaging flows, and building dashboards or reporting tools that companies rely on day-to-day. Backend Development (.NET, Python, Azure) I design and build scalable backend systems including: • ASP.NET Core Web APIs • Python services and automation scripts • Azure Functions (scheduled tasks, event-driven workflows) • Cosmos DB and SQL-based architectures • Secure credential storage (Azure Key Vault) • OAuth2, token refresh processes, micro-service communication These backends typically support ecommerce integrations, billing systems, data pipelines, or custom business workflows. Swift iOS Development I develop native iOS applications in Swift and SwiftUI, focusing on clean UI, strong API communication, and secure data handling. Projects include medical record apps, document scanning workflows, and client-facing booking or scheduling apps. FileMaker Development (10+ Years) I have extensive experience building and improving FileMaker systems, including: • Custom API modules (Shopify, Authorize.Net, Twilio, Google, Microsoft, etc.) • Complex multi-step workflows and automation • Dashboards and reporting systems • Web viewer integrations with JavaScript • Modernizing legacy FileMaker solutions for performance and maintainability Background & Approach My military background built my discipline, attention to detail, and reliability. I take ownership of projects, communicate clearly, and design systems that are stable, maintainable, and practical for real business use. My approach is simple: deliver solutions that work in the real world, improve operations, and scale as the business grows.

I help businesses, startups and agencies build scalable web applications, websites and automated business systems that improve efficiency, streamline operations and support long-term growth. As a Full-Stack Developer, I provide end-to-end development services, from designing and building custom web applications to developing CMS-based websites, integrating third-party APIs, creating custom plugins, implementing payment gateways and automating business workflows. My Services: • Full-Stack Web Development • Web Application Development • CMS Development • WordPress Development • Shopify Development • Wix Development • Squarespace Development • Webflow Development • Framer Development • Custom Plugin Development • API Integration & Third-Party Integrations • Payment Gateway Integration • Website Redesign & Optimization • Custom Dashboard Development • Landing Page Development • Ecommerce Website Development • Automation & Workflow Development Automation Expertise: • Zapier • Make • n8n • Twilio • Monday • Calendly • HubSpot CRM • OpenAI Integrations • CRM & Business Process Automation • Lead Management & Workflow Automation I focus on building secure, scalable, responsive and high-performing solutions that help businesses save time, increase productivity and improve customer experience. Whether you need a custom web application, a CMS-powered website, advanced API integrations, automation workflows or a complete digital solution, I can manage the entire project from planning to deployment. Why Work With Me? • Clean and maintainable code • Scalable architecture and best practices • Strong communication and transparency • Reliable delivery and ongoing support • Business-focused solutions, not just development If you're looking for a developer who can combine full-stack development, CMS expertise, API integrations, payment systems and automation into one seamless solution, let's discuss your project.

☑️ 𝟮𝟮+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗰𝘂𝘀𝘁𝗼𝗺 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 𝗽𝗹𝘂𝗴𝗶𝗻 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. ✅ 𝗧𝗼𝗽 𝟬.𝟭% 𝗨𝗽𝘄𝗼𝗿𝗸𝗲𝗿. 𝗘𝘅𝗽𝗲𝗿𝘁 𝗩𝗲𝘁𝘁𝗲𝗱. 𝗖𝗵𝗼𝗼𝘀𝗲 𝗺𝗲 𝘄𝗵𝗲𝗻 𝘆𝗼𝘂 𝘄𝗮𝗻𝘁 𝗶𝘁 𝗱𝗼𝗻𝗲 𝗿𝗶𝗴𝗵𝘁 𝘁𝗵𝗲 𝗳𝗶𝗿𝘀𝘁 𝘁𝗶𝗺𝗲 𝗼𝗿 𝗻𝗲𝗲𝗱 𝗶𝘁 𝗳𝗶𝘅𝗲𝗱 𝗽𝗿𝗼𝗽𝗲𝗿𝗹𝘆! 𝗛𝗶𝗴𝗵𝗹𝘆 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 𝗽𝗹𝘂𝗴𝗶𝗻 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗯𝘂𝗶𝗹𝘁 𝘄𝗶𝘁𝗵 𝗰𝗹𝗲𝗮𝗻 𝗰𝗼𝗱𝗲 𝘁𝗵𝗮𝘁 𝗺𝗼𝘀𝘁 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝘁𝗹𝘆 𝘀𝗼𝗹𝘃𝗲𝘀 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗯𝗹𝗲𝗺. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 or 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲. I’ll be happy to schedule a call to chat about your needs, outline a solution and give you a timeline and price to make it happen. ❝ 𝗜 𝗵𝗮𝗱 𝗮 𝗱𝗶𝗳𝗳𝗶𝗰𝘂𝗹𝘁 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘁𝗵𝗮𝘁 𝗻𝗼 𝗼𝗻𝗲 𝗰𝗼𝘂𝗹𝗱 𝗳𝗶𝗴𝘂𝗿𝗲 𝗼𝘂𝘁—𝘂𝗻𝘁𝗶𝗹 𝗵𝗲 𝗱𝗶𝗱. 𝗡𝗼𝘁 𝗼𝗻𝗹𝘆 𝘁𝗵𝗮𝘁, 𝗯𝘂𝘁 𝗵𝗲 𝗮𝗹𝘀𝗼 𝗰𝗹𝗲𝗮𝗿𝗹𝘆 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗲𝗱 𝗲𝘃𝗲𝗿𝘆 𝘀𝘁𝗲𝗽 𝗼𝗳 𝘁𝗵𝗲 𝘄𝗮𝘆. 𝗜 𝗵𝗮𝗱 𝗮 𝗽𝗵𝗼𝗻𝗲 𝗰𝗼𝗻𝘃𝗲𝗿𝘀𝗮𝘁𝗶𝗼𝗻 𝘄𝗶𝘁𝗵 𝗵𝗶𝗺 𝗮𝗻𝗱 𝗮𝗻𝗼𝘁𝗵𝗲𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿, 𝗮𝗻𝗱 𝘁𝗵𝗲 𝗼𝘁𝗵𝗲𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘀𝗮𝗶𝗱, "𝙏𝙝𝙞𝙨 𝙜𝙪𝙮 𝙧𝙚𝙖𝙡𝙡𝙮 𝙠𝙣𝙤𝙬𝙨 𝙬𝙝𝙖𝙩 𝙝𝙚'𝙨 𝙙𝙤𝙞𝙣𝙜" 𝗜 𝗵𝗶𝗴𝗵𝗹𝘆 𝗿𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱 𝗵𝗶𝗺, 𝗮𝗻𝗱 𝗵𝗲'𝘀 𝗻𝗼𝘄 𝗺𝘆 𝗴𝗼-𝘁𝗼 𝗳𝗼𝗿 𝗮𝗻𝘆 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝘄𝗼𝗿𝗸. ❞ 🗣 𝗣𝗮𝘂𝗹 𝗠𝗮𝗿𝗸𝗼𝗳𝗳 - 𝗢𝘄𝗻𝗲𝗿, 𝗗𝗿. 𝗣𝗲𝗽𝗽𝗲𝗿 𝗦𝘁𝗮𝗿 𝗖𝗲𝗻𝘁𝗲𝗿𝘀 Highlights my clients appreciate about working together: ☑️ 𝗛𝗼𝗻𝗲𝘀𝘁𝘆 - I only quote exactly what’s needed and I track every hour using Upwork’s screen capture time tracker on every project ☑️ 𝗥𝗲𝗹𝗶𝗮𝗯𝗹𝗲 – I work 7 days a week, responding to messages within 30 minutes to 1 hour during work hours ☑️ 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 - API Integration & Automation Obsession – Real Estate - Payment Processing - SaaS ☑️ 𝗖𝗹𝗲𝗮𝗿 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 & 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻 – You’ll always know what’s happening with your project. You’ll have Loom videos explaining how everything works. ☑️ 𝗨𝗦 𝗠𝗮𝗿𝗸𝗲𝘁 𝗖𝗹𝗶𝗲𝗻𝘁 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 - All my experience and solutions are based on American standards, best practices and expectations Hi, I’m Rick aka Patrick! For more than 22 years my expertise has focused on making third-party applications work flawlessly with WordPress through the use of custom built plugins and API integrations. I’m the creator of the “WordPress Plugin Dragon Framework” and follow Robert C. Martin’s Clean Code principles (SOLID, DRY, YAGNI) to ensure exceptional quality. 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗢𝗳 𝗠𝘆 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ✔ Custom WordPress API Integrations - API Development & API Automation - ✔ Real Estate IDX Plugin & MLS API Solutions - Housecall Pro ✔ Custom WordPress Plugin Development & WordPress Web Development ✔ Business Automation Solutions - Zapier - Zapier Workflows - Google Sheets ✔ WooCommerce API - E-commerce Solutions - SaaS Solutions - Data Synchronization - Stripe - PayPal 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗢𝗳 𝗠𝘆 𝗢𝘁𝗵𝗲𝗿 𝗖𝗼𝗺𝗺𝗼𝗻𝗹𝘆 𝗨𝘀𝗲𝗱 𝗦𝗸𝗶𝗹𝗹𝘀 ✔ Senior Developer - Laravel - PHP - React - XML - JSON ✔ API Expert - RESTful API - Google API - MLS API - RESTful API - RESTful Architecture - SOAP API - Google API - Laravel API - RESO API ✔ Business Automation Solutions - Zapier - Google Sheets Thanks for learning about me! If you’re looking to get your WordPress plugin integration project done right the first time, 𝗶𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 or 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲. I’ll invite you to book a complimentary consultation call together. Talk soon! Rick aka Patrick Mac Gillis ❝ 𝘾𝙤𝙪𝙡𝙙𝙣'𝙩 𝙝𝙖𝙫𝙚 𝙗𝙚𝙚𝙣 𝙝𝙖𝙥𝙥𝙞𝙚𝙧 𝙬𝙞𝙩𝙝 𝙍𝙞𝙘𝙠'𝙨 𝙬𝙤𝙧𝙠, 𝙘𝙤𝙢𝙢𝙪𝙣𝙞𝙘𝙖𝙩𝙞𝙤𝙣, 𝙖𝙩𝙩𝙚𝙣𝙩𝙞𝙤𝙣 𝙩𝙤 𝙙𝙚𝙩𝙖𝙞𝙡𝙨, 𝙧𝙚𝙨𝙥𝙤𝙣𝙨𝙞𝙫𝙚𝙣𝙚𝙨𝙨, 𝙖𝙣𝙙 𝙚𝙫𝙚𝙧𝙮 𝙤𝙩𝙝𝙚𝙧 𝙖𝙨𝙥𝙚𝙘𝙩 𝙮𝙤𝙪'𝙙 𝙚𝙭𝙥𝙚𝙘𝙩 𝙛𝙧𝙤𝙢 𝙖 𝙥𝙧𝙤𝙛𝙚𝙨𝙨𝙞𝙤𝙣𝙖𝙡 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧. 𝙄𝙛 𝙄 𝙣𝙚𝙚𝙙 𝙖𝙙𝙙𝙞𝙩𝙞𝙤𝙣𝙖𝙡 𝙬𝙤𝙧𝙠 𝙤𝙧 𝙝𝙖𝙫𝙚 𝙖 𝙣𝙚𝙬 𝙥𝙧𝙤𝙟𝙚𝙘𝙩, 𝙍𝙞𝙘𝙠 𝙞𝙨 𝙩𝙝𝙚 𝙤𝙣𝙡𝙮 𝙤𝙣𝙚 𝙄'𝙡𝙡 𝙧𝙚𝙖𝙘𝙝 𝙤𝙪𝙩 𝙩𝙤! ❞ 🗣 𝙍𝙤𝙗 𝙂𝙧𝙖𝙗𝙤𝙬𝙨𝙠𝙞 - 𝙊𝙬𝙣𝙚𝙧 - 𝙂𝙪𝙣𝙂𝙧𝙤𝙪𝙥𝙞𝙚

⚠️ IMPORTANT: Your Initial 60-Minute Consultation is FREE! I offer all new prospects a complimentary 60-minute video consultation to discuss their project with me—no strings attached. Even if you're unsure whether I'm the right fit, let’s chat! I’m happy to provide guidance and help point you in the right direction. With experience spanning startups, non-profits, and big tech companies, I bring a wealth of knowledge to the table. And if I don’t have the answer, chances are I know someone who does. About Me I’m a full-stack web developer based in the Central Time Zone. While I excel in all aspects of development, my greatest expertise lies in custom enterprise API development. Whether it’s SOAP, gRPC, REST, or GraphQL, I’ve designed, built, integrated, tested—or optimized—solutions across the board. Technologies & Tools Here’s a non-exhaustive list of technologies I’ve worked with: Languages & Frameworks: JavaScript / TypeScript Node.js React / Next.js / Angular / Vue Express Python Databases: SQL (MS SQL, MySQL, SQLite, Postgres) NoSQL (MongoDB, Firestore, DynamoDB, CosmosDB) Redis Cloud & DevOps: Firebase / AWS S3 / SQS / Cognito / EC2 CodeBuild / Amplify Serverless Functions (Firebase Functions, AWS Lambda, Azure Functions) For more details on my work, feel free to check out my LinkedIn profile and portfolio page. I look forward to speaking with you soon!

Greetings! My name is Gary, and I am an expert software engineer and API integration specialist with over 7 years of experience building, optimizing, and maintaining advanced, scalable platforms. As a Top Rated Plus freelancer here on Upwork, you can rest assured that your project will be done correctly the first time around, with no corners cut. I develop only the best quality sites, plugins, and themes with code that is clean, efficient, and easy to maintain. I'll get straight to the point – primarily, my skillset includes: • Custom Software Development (Rust, Go, C++, PHP, and more) • Principal-Level Leadership/Guidance for Engineering Teams • Fully Custom WP Plugin and Theme Development (PHP, JS/TypeScript, HTML/CSS) • Shopify Plus Development (Custom Themes, Apps, and Extensions) • API Integration • Theme Installation and Setup • Plugin Installation and Setup • Single Sign-On (SSO) Implementation • Infrastructure, CI/CD, & DevOps (AWS, Cloudflare) • Microservices I have extensive experience and knowledge with Rust, C++, Liquid, PHP, JS/TypeScript, and of course, HTML and CSS. I'm very comfortable working with traditional SQL and NoSQL databases of all sizes to ensure secure and scalable performance. Don't hesitate to reach out if you're looking to kickstart or discuss an interesting project. I'm open to both direct contribution and consulting projects, as time allows. Thank you for your time!

I can solve any custom API integration issue that other developers have given up on - from phone door openers to Swiss and American banks, from 1974's nacha technologies to artificial intelligence, crypto and blockchain. I have 22+ years of overall 🌐 Web Development experience, including 18+ years with ⚙️ Custom PHP, 16+ years with 📝 WordPress and 🛠️ API Integration, and 12+ years with 🛍️ eCommerce, along with other related technologies and programming languages. Located in Washington State, I have no problem working 30-40+ hours during American time. I am self-controlled, self-organized, flexible and learnable, I can adapt to whatever your project requires. ================================ 🛠️ API INTEGRATION I offer custom API integration for a wide range of services using the most common REST, SOAP and GraphQL protocols. There is a strong focus on authentication, error handling and personal data security. I have extensive experience working with 1,200,000+ records at a time with regular automatic updates down to the minute. 🛠️ API integration development 🛠️ Data transformation and processing 🛠️ Analytics, reporting and visualization 🛠️ Custom API/feeds development Some API integrations I have experience with: Ahrefs API, Amazon API Gateway, Amazon AWS API, Amazon Lambda API, Amazon PA API, Amazon S3 API, Bank Of America API, Barcode Lookup API, BigCommerce API, BlueBanc API, Brevo API, Bright Data API, ChatGPT API, Cloudflare API, CoinBase API, Detroit Trading API, Dukascopy API, Dynadot API, eBay Product API, Envato API, Ethereum API, Etherscan API, First Data API, Fiserv API, GoDaddy API, Google Places API, HubSpot API, Jobber API, Lead Byte API, Lead Galore API, Lead Horizon API, Lead Prosper API, Leads Hook API, MaxMind API, Meta Marketing API, Modern Dropship API, NameSilo API, NowPayments API, OpenAI API, PayPal API, Plaid API, Polygon API, Polygon Scan API, Quin Stage API, Quin Street API, Relograde API, RiskPay API, Round Sky API, Samsara API, Seamless Chex API, SendGrid API, Shopify API, Slack API, Square API, Stripe API, Supabase API, Tatum API, Thumbtack API, Trulia API, Twilio API, VideoHive API, WhatsApp Cloud API, WooCommerce API, WordPress API, Zillow API, etc... ================================ 🧠 DATA PROCESSING I offer ETL (Extract, Transform, Load) data processing services that include cleaning, transforming, and analyzing data to extract valuable insights. This can involve working with external APIs, large datasets, cloud or database storage. I have extensive experience with tools like PHP, databases and cloud services for efficient processing. 🧠 Data cleaning and transformation 🧠 Real-time data analysis and reporting 🧠 Data files creating and processing 🧠 Artificial intelligence enhancing ================================ ⚙️ MICROSERVICES I offer development of microservices for external project management or communication between different projects. This includes receiving data via API, converting it to the required format, storing it in a database or sending it via API to another service. I have experience working with Amazon, Google, Meta as well as smaller private services. ⚙️ Inbound and outbound API integration ⚙️ Converting one type of API to another type ⚙️ Splitting large queries into multiple queries ⚙️ Automatic processing of requests on schedule ================================ 🛍️ ECOMMERCE I offer product import/export and inventory management for eCommerce stores. This includes working with popular WordPress, Shopify, WooCommerce and BigCommerce as well as external marketplaces such as Amazon, eBay, Google Shopping, etc. I have extensive experience working with 100,000+ inventory processing and synchronization. 🛍️ Inventory management solutions 🛍️ Sales and performance analytics 🛍️ Fraud detection and prevention 🛍️ Marketplaces synchronization ================================ One last thing... there's a reason I have a 100% success score on Upwork. That's because I get it right the first time, or I will work for free until you're happy. Thank you for taking the time to review my profile. Looking forward to connecting with you!