Hire the Best Facebook API Developers
in the United States
Somerville, Massachusetts
I help businesses fix broken tracking, attribution issues, and platform integrations. Most of the work I do is in the middle of a tech stack: websites, ad platforms, analytics tools, CRMs, CDPs, eCommerce platforms, databases, and custom APIs. If two systems need to share data, or if the data being reported does not match what is actually happening, I can usually help figure out why. I am a full-stack engineer with 13+ years of experience building and maintaining production systems. I work across website code, checkout flows, GTM, server-side tracking, APIs, webhooks, databases, cloud infrastructure, and reporting. I am also the lead developer for ONNO, a multi-million-dollar eCommerce brand, where I built and maintain the storefront, tracking setup, server-side events, attribution flow, and data pipelines. Common issues I work on: Meta Ads is under-reporting purchases or leads Meta CAPI is installed, but deduplication or event match quality is not right GA4 purchases, leads, or key events are missing or inaccurate Google Ads conversions do not match backend sales Shopify or WooCommerce tracking broke after a site, theme, plugin, or checkout update GTM tags are firing twice, not firing at all, or sending the wrong data Segment, HubSpot, Klaviyo, Salesforce, or another platform is receiving incomplete or incorrect data Two systems need to sync, but the native integration is limited or does not exist Reports do not line up with actual sales, leads, or customer activity A Zapier, Make, or n8n automation mostly works, but fails in edge cases How I can help: Attribution and tracking audits I trace the data from the website through GTM, GA4, Meta, Google Ads, server-side tracking, checkout, backend systems, and reporting. The goal is to find where the data is getting lost, duplicated, or changed. Meta CAPI and server-side tracking I build and troubleshoot Meta CAPI, server-side GTM, Stape, GA4, Google Ads Enhanced Conversions, TikTok events, and custom server-side event flows. I focus on clean events, reliable deduplication, and better first-party data. Platform integrations I connect platforms using native integrations, Zapier, Make, n8n, webhooks, REST APIs, or custom code. This can include websites, CRMs, CDPs, ad platforms, eCommerce stores, databases, internal tools, and reporting systems. eCommerce tracking and data flows I work with Shopify, WooCommerce, WordPress, and custom checkout flows. I can help track purchases, checkout steps, customer data, lead events, cart activity, and ad platform conversions. Custom API and webhook work When the standard integration is not enough, I can build the missing piece. That may be a webhook handler, API connection, data transformation, middleware, event router, backend script, or lightweight internal tool. Reporting and data cleanup I help clean up duplicate events, missing parameters, broken UTMs, inconsistent customer IDs, bad attribution, and mismatches between GA4, ad platforms, CRMs, CDPs, and backend sales data. Tools and platforms I work with: Meta CAPI, Facebook Pixel, Google Ads Enhanced Conversions, GA4, GTM, server-side GTM, Stape, Segment, HubSpot, Salesforce, Klaviyo, Shopify, WooCommerce, WordPress, BigQuery, Looker Studio, Zapier, Make, n8n, REST APIs, webhooks, AWS, GCP, and custom code. Why clients work with me: I am not just looking at one tag or one platform. Tracking and integration problems usually involve several systems at once, so I look at the full path the data takes. Because I am a full-stack engineer, I can usually debug past the surface-level setup and get into the actual code, API calls, payloads, server logs, and data flow when needed. If your tracking is off, your attribution does not make sense, or your platforms are not syncing correctly, send me a message with what is going on. I can help find where it is breaking and what it would take to fix it.
- Google Tag Manager
- Google Analytics 4
- Tracking Pixel
- Facebook Pixel Setup & Optimization
- API
- Google Analytics
- Google Analytics API
- Google Analytics Report
- WordPress
- Shopify
- WooCommerce
Whitney, Texas
โ๏ธ ๐ฎ๐ฎ+ ๐๐ฒ๐ฎ๐ฟ๐ ๐ผ๐ณ ๐ฐ๐๐๐๐ผ๐บ ๐ช๐ผ๐ฟ๐ฑ๐ฃ๐ฟ๐ฒ๐๐ ๐ฝ๐น๐๐ด๐ถ๐ป ๐๐ผ๐น๐๐๐ถ๐ผ๐ป๐. โ ๐ง๐ผ๐ฝ ๐ฌ.๐ญ% ๐จ๐ฝ๐๐ผ๐ฟ๐ธ๐ฒ๐ฟ. ๐๐ ๐ฝ๐ฒ๐ฟ๐ ๐ฉ๐ฒ๐๐๐ฒ๐ฑ. ๐๐ต๐ผ๐ผ๐๐ฒ ๐บ๐ฒ ๐๐ต๐ฒ๐ป ๐๐ผ๐ ๐๐ฎ๐ป๐ ๐ถ๐ ๐ฑ๐ผ๐ป๐ฒ ๐ฟ๐ถ๐ด๐ต๐ ๐๐ต๐ฒ ๐ณ๐ถ๐ฟ๐๐ ๐๐ถ๐บ๐ฒ ๐ผ๐ฟ ๐ป๐ฒ๐ฒ๐ฑ ๐ถ๐ ๐ณ๐ถ๐ ๐ฒ๐ฑ ๐ฝ๐ฟ๐ผ๐ฝ๐ฒ๐ฟ๐น๐! ๐๐ถ๐ด๐ต๐น๐ ๐๐ฝ๐ฒ๐ฐ๐ถ๐ฎ๐น๐ถ๐๐ฒ๐ฑ ๐ช๐ผ๐ฟ๐ฑ๐ฃ๐ฟ๐ฒ๐๐ ๐ฝ๐น๐๐ด๐ถ๐ป ๐๐ผ๐น๐๐๐ถ๐ผ๐ป๐ ๐ฏ๐๐ถ๐น๐ ๐๐ถ๐๐ต ๐ฐ๐น๐ฒ๐ฎ๐ป ๐ฐ๐ผ๐ฑ๐ฒ ๐๐ต๐ฎ๐ ๐บ๐ผ๐๐ ๐ฒ๐ณ๐ณ๐ถ๐ฐ๐ถ๐ฒ๐ป๐๐น๐ ๐๐ผ๐น๐๐ฒ๐ ๐๐ผ๐๐ฟ ๐ฝ๐ฟ๐ผ๐ฏ๐น๐ฒ๐บ. ๐๐ป๐๐ถ๐๐ฒ ๐บ๐ฒ ๐๐ผ ๐๐ผ๐๐ฟ ๐ฝ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐ ๐ผ๐ป ๐จ๐ฝ๐๐ผ๐ฟ๐ธ or ๐๐ฒ๐ป๐ฑ ๐บ๐ฒ ๐ฎ ๐ฑ๐ถ๐ฟ๐ฒ๐ฐ๐ ๐บ๐ฒ๐๐๐ฎ๐ด๐ฒ. Iโll 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. โ ๐ ๐ต๐ฎ๐ฑ ๐ฎ ๐ฑ๐ถ๐ณ๐ณ๐ถ๐ฐ๐๐น๐ ๐ฝ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐ ๐๐ต๐ฎ๐ ๐ป๐ผ ๐ผ๐ป๐ฒ ๐ฐ๐ผ๐๐น๐ฑ ๐ณ๐ถ๐ด๐๐ฟ๐ฒ ๐ผ๐๐โ๐๐ป๐๐ถ๐น ๐ต๐ฒ ๐ฑ๐ถ๐ฑ. ๐ก๐ผ๐ ๐ผ๐ป๐น๐ ๐๐ต๐ฎ๐, ๐ฏ๐๐ ๐ต๐ฒ ๐ฎ๐น๐๐ผ ๐ฐ๐น๐ฒ๐ฎ๐ฟ๐น๐ ๐ฐ๐ผ๐บ๐บ๐๐ป๐ถ๐ฐ๐ฎ๐๐ฒ๐ฑ ๐ฒ๐๐ฒ๐ฟ๐ ๐๐๐ฒ๐ฝ ๐ผ๐ณ ๐๐ต๐ฒ ๐๐ฎ๐. ๐ ๐ต๐ฎ๐ฑ ๐ฎ ๐ฝ๐ต๐ผ๐ป๐ฒ ๐ฐ๐ผ๐ป๐๐ฒ๐ฟ๐๐ฎ๐๐ถ๐ผ๐ป ๐๐ถ๐๐ต ๐ต๐ถ๐บ ๐ฎ๐ป๐ฑ ๐ฎ๐ป๐ผ๐๐ต๐ฒ๐ฟ ๐ฑ๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐ฒ๐ฟ, ๐ฎ๐ป๐ฑ ๐๐ต๐ฒ ๐ผ๐๐ต๐ฒ๐ฟ ๐ฑ๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐ฒ๐ฟ ๐๐ฎ๐ถ๐ฑ, "๐๐๐๐จ ๐๐ช๐ฎ ๐ง๐๐๐ก๐ก๐ฎ ๐ ๐ฃ๐ค๐ฌ๐จ ๐ฌ๐๐๐ฉ ๐๐'๐จ ๐๐ค๐๐ฃ๐" ๐ ๐ต๐ถ๐ด๐ต๐น๐ ๐ฟ๐ฒ๐ฐ๐ผ๐บ๐บ๐ฒ๐ป๐ฑ ๐ต๐ถ๐บ, ๐ฎ๐ป๐ฑ ๐ต๐ฒ'๐ ๐ป๐ผ๐ ๐บ๐ ๐ด๐ผ-๐๐ผ ๐ณ๐ผ๐ฟ ๐ฎ๐ป๐ ๐ฑ๐ฒ๐๐ฒ๐น๐ผ๐ฝ๐บ๐ฒ๐ป๐ ๐๐ผ๐ฟ๐ธ. โ ๐ฃ ๐ฃ๐ฎ๐๐น ๐ ๐ฎ๐ฟ๐ธ๐ผ๐ณ๐ณ - ๐ข๐๐ป๐ฒ๐ฟ, ๐๐ฟ. ๐ฃ๐ฒ๐ฝ๐ฝ๐ฒ๐ฟ ๐ฆ๐๐ฎ๐ฟ ๐๐ฒ๐ป๐๐ฒ๐ฟ๐ Highlights my clients appreciate about working together: โ๏ธ ๐๐ผ๐ป๐ฒ๐๐๐ - I only quote exactly whatโs needed and I track every hour using Upworkโs screen capture time tracker on every project โ๏ธ ๐ฅ๐ฒ๐น๐ถ๐ฎ๐ฏ๐น๐ฒ โ I work 7 days a week, responding to messages within 30 minutes to 1 hour during work hours โ๏ธ ๐ฆ๐ฝ๐ฒ๐ฐ๐ถ๐ฎ๐น๐ถ๐๐ฒ๐ฑ ๐๐ ๐ฝ๐ฒ๐ฟ๐๐ถ๐๐ฒ - API Integration & Automation Obsession โ Real Estate - Payment Processing - SaaS โ๏ธ ๐๐น๐ฒ๐ฎ๐ฟ ๐๐ผ๐บ๐บ๐๐ป๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป & ๐๐ผ๐ฐ๐๐บ๐ฒ๐ป๐๐ฎ๐๐ถ๐ผ๐ป โ Youโll always know whatโs happening with your project. Youโll have Loom videos explaining how everything works. โ๏ธ ๐จ๐ฆ ๐ ๐ฎ๐ฟ๐ธ๐ฒ๐ ๐๐น๐ถ๐ฒ๐ป๐ ๐ฆ๐ฝ๐ฒ๐ฐ๐ถ๐ฎ๐น๐ถ๐๐ฎ๐๐ถ๐ผ๐ป - All my experience and solutions are based on American standards, best practices and expectations Hi, Iโm 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. Iโm the creator of the โWordPress Plugin Dragon Frameworkโ and follow Robert C. Martinโs Clean Code principles (SOLID, DRY, YAGNI) to ensure exceptional quality. ๐๐ถ๐ด๐ต๐น๐ถ๐ด๐ต๐๐ ๐ข๐ณ ๐ ๐ ๐๐ผ๐ฟ๐ฒ ๐๐ ๐ฝ๐ฒ๐ฟ๐๐ถ๐๐ฒ โ Custom WordPress API Integrations - API Development & API Automation - โ Real Estate IDX Plugin & MLS API Solutions - Housecall Pro โ Custom WordPress Plugin Development & WordPress Web Development โ Business Automation Solutions - Zapier - Zapier Workflows - Google Sheets โ WooCommerce API - E-commerce Solutions - SaaS Solutions - Data Synchronization - Stripe - PayPal ๐๐ถ๐ด๐ต๐น๐ถ๐ด๐ต๐๐ ๐ข๐ณ ๐ ๐ ๐ข๐๐ต๐ฒ๐ฟ ๐๐ผ๐บ๐บ๐ผ๐ป๐น๐ ๐จ๐๐ฒ๐ฑ ๐ฆ๐ธ๐ถ๐น๐น๐ โ Senior Developer - Laravel - PHP - React - XML - JSON โ API Expert - RESTful API - Google API - MLS API - RESTful API - RESTful Architecture - SOAP API - Google API - Laravel API - RESO API โ Business Automation Solutions - Zapier - Google Sheets Thanks for learning about me! If youโre looking to get your WordPress plugin integration project done right the first time, ๐ถ๐ป๐๐ถ๐๐ฒ ๐บ๐ฒ ๐๐ผ ๐๐ผ๐๐ฟ ๐ฝ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐ ๐ผ๐ป ๐จ๐ฝ๐๐ผ๐ฟ๐ธ or ๐๐ฒ๐ป๐ฑ ๐บ๐ฒ ๐ฎ ๐ฑ๐ถ๐ฟ๐ฒ๐ฐ๐ ๐บ๐ฒ๐๐๐ฎ๐ด๐ฒ. Iโll invite you to book a complimentary consultation call together. Talk soon! Rick aka Patrick Mac Gillis โ ๐พ๐ค๐ช๐ก๐๐ฃ'๐ฉ ๐๐๐ซ๐ ๐๐๐๐ฃ ๐๐๐ฅ๐ฅ๐๐๐ง ๐ฌ๐๐ฉ๐ ๐๐๐๐ '๐จ ๐ฌ๐ค๐ง๐ , ๐๐ค๐ข๐ข๐ช๐ฃ๐๐๐๐ฉ๐๐ค๐ฃ, ๐๐ฉ๐ฉ๐๐ฃ๐ฉ๐๐ค๐ฃ ๐ฉ๐ค ๐๐๐ฉ๐๐๐ก๐จ, ๐ง๐๐จ๐ฅ๐ค๐ฃ๐จ๐๐ซ๐๐ฃ๐๐จ๐จ, ๐๐ฃ๐ ๐๐ซ๐๐ง๐ฎ ๐ค๐ฉ๐๐๐ง ๐๐จ๐ฅ๐๐๐ฉ ๐ฎ๐ค๐ช'๐ ๐๐ญ๐ฅ๐๐๐ฉ ๐๐ง๐ค๐ข ๐ ๐ฅ๐ง๐ค๐๐๐จ๐จ๐๐ค๐ฃ๐๐ก ๐๐๐ซ๐๐ก๐ค๐ฅ๐๐ง. ๐๐ ๐ ๐ฃ๐๐๐ ๐๐๐๐๐ฉ๐๐ค๐ฃ๐๐ก ๐ฌ๐ค๐ง๐ ๐ค๐ง ๐๐๐ซ๐ ๐ ๐ฃ๐๐ฌ ๐ฅ๐ง๐ค๐๐๐๐ฉ, ๐๐๐๐ ๐๐จ ๐ฉ๐๐ ๐ค๐ฃ๐ก๐ฎ ๐ค๐ฃ๐ ๐'๐ก๐ก ๐ง๐๐๐๐ ๐ค๐ช๐ฉ ๐ฉ๐ค! โ ๐ฃ ๐๐ค๐ ๐๐ง๐๐๐ค๐ฌ๐จ๐ ๐ - ๐๐ฌ๐ฃ๐๐ง - ๐๐ช๐ฃ๐๐ง๐ค๐ช๐ฅ๐๐
- API Development
- API
- API Integration
- Automation
- Real Estate IDX
- WordPress
- WooCommerce
- MLS Consulting
- WordPress Plugin
- Web Development
- RESTful API
- PHP
- Zapier
- JSON API
- GPT API
Adelanto, California
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: โข Full-Stack Web Development โข Web Application Development โข CMS Development โข WordPress Development โข Shopify Development โข Wix Development โข Squarespace Development โข Webflow Development โข Framer Development โข Custom Plugin Development โข API Integration & Third-Party Integrations โข Payment Gateway Integration โข Website Redesign & Optimization โข Custom Dashboard Development โข Landing Page Development โข Ecommerce Website Development โข Automation & Workflow Development Automation Expertise: โข Zapier โข Make โข n8n โข Twilio โข Monday โข Calendly โข HubSpot CRM โข OpenAI Integrations โข CRM & Business Process Automation โข 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? โข Clean and maintainable code โข Scalable architecture and best practices โข Strong communication and transparency โข Reliable delivery and ongoing support โข 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.
- Full-Stack Development
- Web Application Development
- CMS Development
- WordPress Development
- Shopify Development
- Webflow
- Wix
- Squarespace
- Framer
- API Integration
- Plugin Development
- Payment Gateway Integration
- Automation
- Zapier
- Make.com
- n8n
- React
- JavaScript
- Ecommerce Website Development
- Custom Web Design
Farmington, Arkansas
โ ๏ธ IMPORTANT: Your Initial 60-Minute Consultation is FREE! I offer all new prospects a complimentary 60-minute video consultation to discuss their project with meโno strings attached. Even if you're unsure whether I'm the right fit, letโs chat! Iโm 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 donโt have the answer, chances are I know someone who does. About Me Iโm 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 itโs SOAP, gRPC, REST, or GraphQL, Iโve designed, built, integrated, testedโor optimizedโsolutions across the board. Technologies & Tools Hereโs a non-exhaustive list of technologies Iโve 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!
- API Development
- Node.js
- JavaScript
- React
- Angular
- Java
- GraphQL
- Kotlin
- PHP
- RESTful Architecture
- .NET Core
- API
West Hempstead, New York
โจExperienced Senior API Integration Specialist with a DECADE of Expertise Building Scalable Solutions โจ โญโญโญโญโญ 5-Star rating and 100% Client Satisfaction. Available for โ FREE 15 MINUTE CONSULTATIONโ โ API Integration โ Payment Gateway Integration โ Open AI API Integration โ ERP Integration โ Chatbot Integration โ Microservices Integration โ Marketing Integration โ Healthcare Integration โ Financial Integration โ Middleware Integration โ CRM Integration โ Social Media Integration โ Database Integration โ E-commerce Integration I'm passionate about helping businesses like yours thrive by seamlessly connecting your software systems and services through API integrations. With years of experience under my belt, I've honed my skills as a problem-solver and a tech enthusiast, specializing in making your workflows more efficient and your operations smoother than ever before. As your API integration specialist, I bring a wealth of expertise in a wide range of integrations. From payment processing to e-commerce, CRM to marketing automation, and everything in between, I've got you covered. ๐ผ Need to integrate your e-commerce platform with a payment gateway for frictionless transactions? Consider it done. ๐ Want to sync your CRM system with your email marketing platform to gain deeper insights into your customer base? I've got just the solution. But it's not just about connecting the dotsโit's about delivering real value to your business. That's why I take the time to truly understand your unique needs and objectives, ensuring that each integration is tailor-made to seamlessly fit into your existing workflows. Whether it's streamlining operations, improving data accuracy, or enhancing the overall customer experience, I'm dedicated to delivering results that make a tangible difference. So why should you hire me? Here's why: โค ๐ Why Choose Me? โ Client Satisfaction: Committed to exceeding client expectations by delivering high-quality, scalable, and user-friendly solutions. โ Proven Track Record: Successfully delivered a diverse range of projects, from small-scale applications to enterprise-level systems. โ Effective Communication: Strong communication skills ensure clarity in project requirements and smooth collaboration with team members and clients. Ready to take your business to the next level with seamless API integrations? Let's chat! I'm excited to learn more about your project and how I can help you succeed. ๐
- Laravel
- Django
- Python
- Python Script
- PHP
- Back-End Development
- Web Application
- Web Development
- React
- Vue.js
- Front-End Development
- WordPress
- OpenAI Inc.
- QuickBooks Online API
- Data Visualization
Birdsboro, Pennsylvania
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 โ primarily, my skillset includes: โข Custom Software Development (Rust, Go, C++, PHP, and more) โข Principal-Level Leadership/Guidance for Engineering Teams โข Fully Custom WP Plugin and Theme Development (PHP, JS/TypeScript, HTML/CSS) โข Shopify Plus Development (Custom Themes, Apps, and Extensions) โข API Integration โข Theme Installation and Setup โข Plugin Installation and Setup โข Single Sign-On (SSO) Implementation โข Infrastructure, CI/CD, & DevOps (AWS, Cloudflare) โข 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!
- Scala
- API Integration
- JavaScript
- PHP
- HTML
- MySQL
- WordPress
- CSS
- RESTful API
- API
- React Native
- Graphic Design
- Plugin Development
- Theme Development
- Swift
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- Stripe Developers in the United States