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Jeffrey N.

Somerville, Massachusetts

$120/hr
5.0
9 jobs

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
Patrick M.

Whitney, Texas

$111/hr
4.9
157 jobs

โ˜‘๏ธ ๐Ÿฎ๐Ÿฎ+ ๐˜†๐—ฒ๐—ฎ๐—ฟ๐˜€ ๐—ผ๐—ณ ๐—ฐ๐˜‚๐˜€๐˜๐—ผ๐—บ ๐—ช๐—ผ๐—ฟ๐—ฑ๐—ฃ๐—ฟ๐—ฒ๐˜€๐˜€ ๐—ฝ๐—น๐˜‚๐—ด๐—ถ๐—ป ๐˜€๐—ผ๐—น๐˜‚๐˜๐—ถ๐—ผ๐—ป๐˜€. โœ… ๐—ง๐—ผ๐—ฝ ๐Ÿฌ.๐Ÿญ% ๐—จ๐—ฝ๐˜„๐—ผ๐—ฟ๐—ธ๐—ฒ๐—ฟ. ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜ ๐—ฉ๐—ฒ๐˜๐˜๐—ฒ๐—ฑ. ๐—–๐—ต๐—ผ๐—ผ๐˜€๐—ฒ ๐—บ๐—ฒ ๐˜„๐—ต๐—ฒ๐—ป ๐˜†๐—ผ๐˜‚ ๐˜„๐—ฎ๐—ป๐˜ ๐—ถ๐˜ ๐—ฑ๐—ผ๐—ป๐—ฒ ๐—ฟ๐—ถ๐—ด๐—ต๐˜ ๐˜๐—ต๐—ฒ ๐—ณ๐—ถ๐—ฟ๐˜€๐˜ ๐˜๐—ถ๐—บ๐—ฒ ๐—ผ๐—ฟ ๐—ป๐—ฒ๐—ฒ๐—ฑ ๐—ถ๐˜ ๐—ณ๐—ถ๐˜…๐—ฒ๐—ฑ ๐—ฝ๐—ฟ๐—ผ๐—ฝ๐—ฒ๐—ฟ๐—น๐˜†! ๐—›๐—ถ๐—ด๐—ต๐—น๐˜† ๐˜€๐—ฝ๐—ฒ๐—ฐ๐—ถ๐—ฎ๐—น๐—ถ๐˜‡๐—ฒ๐—ฑ ๐—ช๐—ผ๐—ฟ๐—ฑ๐—ฃ๐—ฟ๐—ฒ๐˜€๐˜€ ๐—ฝ๐—น๐˜‚๐—ด๐—ถ๐—ป ๐˜€๐—ผ๐—น๐˜‚๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐—ฏ๐˜‚๐—ถ๐—น๐˜ ๐˜„๐—ถ๐˜๐—ต ๐—ฐ๐—น๐—ฒ๐—ฎ๐—ป ๐—ฐ๐—ผ๐—ฑ๐—ฒ ๐˜๐—ต๐—ฎ๐˜ ๐—บ๐—ผ๐˜€๐˜ ๐—ฒ๐—ณ๐—ณ๐—ถ๐—ฐ๐—ถ๐—ฒ๐—ป๐˜๐—น๐˜† ๐˜€๐—ผ๐—น๐˜ƒ๐—ฒ๐˜€ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฝ๐—ฟ๐—ผ๐—ฏ๐—น๐—ฒ๐—บ. ๐—œ๐—ป๐˜ƒ๐—ถ๐˜๐—ฒ ๐—บ๐—ฒ ๐˜๐—ผ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฝ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜ ๐—ผ๐—ป ๐—จ๐—ฝ๐˜„๐—ผ๐—ฟ๐—ธ or ๐˜€๐—ฒ๐—ป๐—ฑ ๐—บ๐—ฒ ๐—ฎ ๐—ฑ๐—ถ๐—ฟ๐—ฒ๐—ฐ๐˜ ๐—บ๐—ฒ๐˜€๐˜€๐—ฎ๐—ด๐—ฒ. Iโ€™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. โ ๐—œ ๐—ต๐—ฎ๐—ฑ ๐—ฎ ๐—ฑ๐—ถ๐—ณ๐—ณ๐—ถ๐—ฐ๐˜‚๐—น๐˜ ๐—ฝ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜ ๐˜๐—ต๐—ฎ๐˜ ๐—ป๐—ผ ๐—ผ๐—ป๐—ฒ ๐—ฐ๐—ผ๐˜‚๐—น๐—ฑ ๐—ณ๐—ถ๐—ด๐˜‚๐—ฟ๐—ฒ ๐—ผ๐˜‚๐˜โ€”๐˜‚๐—ป๐˜๐—ถ๐—น ๐—ต๐—ฒ ๐—ฑ๐—ถ๐—ฑ. ๐—ก๐—ผ๐˜ ๐—ผ๐—ป๐—น๐˜† ๐˜๐—ต๐—ฎ๐˜, ๐—ฏ๐˜‚๐˜ ๐—ต๐—ฒ ๐—ฎ๐—น๐˜€๐—ผ ๐—ฐ๐—น๐—ฒ๐—ฎ๐—ฟ๐—น๐˜† ๐—ฐ๐—ผ๐—บ๐—บ๐˜‚๐—ป๐—ถ๐—ฐ๐—ฎ๐˜๐—ฒ๐—ฑ ๐—ฒ๐˜ƒ๐—ฒ๐—ฟ๐˜† ๐˜€๐˜๐—ฒ๐—ฝ ๐—ผ๐—ณ ๐˜๐—ต๐—ฒ ๐˜„๐—ฎ๐˜†. ๐—œ ๐—ต๐—ฎ๐—ฑ ๐—ฎ ๐—ฝ๐—ต๐—ผ๐—ป๐—ฒ ๐—ฐ๐—ผ๐—ป๐˜ƒ๐—ฒ๐—ฟ๐˜€๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐˜„๐—ถ๐˜๐—ต ๐—ต๐—ถ๐—บ ๐—ฎ๐—ป๐—ฑ ๐—ฎ๐—ป๐—ผ๐˜๐—ต๐—ฒ๐—ฟ ๐—ฑ๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—ฒ๐—ฟ, ๐—ฎ๐—ป๐—ฑ ๐˜๐—ต๐—ฒ ๐—ผ๐˜๐—ต๐—ฒ๐—ฟ ๐—ฑ๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—ฒ๐—ฟ ๐˜€๐—ฎ๐—ถ๐—ฑ, "๐™๐™๐™ž๐™จ ๐™œ๐™ช๐™ฎ ๐™ง๐™š๐™–๐™ก๐™ก๐™ฎ ๐™ ๐™ฃ๐™ค๐™ฌ๐™จ ๐™ฌ๐™๐™–๐™ฉ ๐™๐™š'๐™จ ๐™™๐™ค๐™ž๐™ฃ๐™œ" ๐—œ ๐—ต๐—ถ๐—ด๐—ต๐—น๐˜† ๐—ฟ๐—ฒ๐—ฐ๐—ผ๐—บ๐—บ๐—ฒ๐—ป๐—ฑ ๐—ต๐—ถ๐—บ, ๐—ฎ๐—ป๐—ฑ ๐—ต๐—ฒ'๐˜€ ๐—ป๐—ผ๐˜„ ๐—บ๐˜† ๐—ด๐—ผ-๐˜๐—ผ ๐—ณ๐—ผ๐—ฟ ๐—ฎ๐—ป๐˜† ๐—ฑ๐—ฒ๐˜ƒ๐—ฒ๐—น๐—ผ๐—ฝ๐—บ๐—ฒ๐—ป๐˜ ๐˜„๐—ผ๐—ฟ๐—ธ. โž ๐Ÿ—ฃ ๐—ฃ๐—ฎ๐˜‚๐—น ๐— ๐—ฎ๐—ฟ๐—ธ๐—ผ๐—ณ๐—ณ - ๐—ข๐˜„๐—ป๐—ฒ๐—ฟ, ๐——๐—ฟ. ๐—ฃ๐—ฒ๐—ฝ๐—ฝ๐—ฒ๐—ฟ ๐—ฆ๐˜๐—ฎ๐—ฟ ๐—–๐—ฒ๐—ป๐˜๐—ฒ๐—ฟ๐˜€ Highlights my clients appreciate about working together: โ˜‘๏ธ ๐—›๐—ผ๐—ป๐—ฒ๐˜€๐˜๐˜† - I only quote exactly whatโ€™s needed and I track every hour using Upworkโ€™s screen capture time tracker on every project โ˜‘๏ธ ๐—ฅ๐—ฒ๐—น๐—ถ๐—ฎ๐—ฏ๐—น๐—ฒ โ€“ I work 7 days a week, responding to messages within 30 minutes to 1 hour during work hours โ˜‘๏ธ ๐—ฆ๐—ฝ๐—ฒ๐—ฐ๐—ถ๐—ฎ๐—น๐—ถ๐˜‡๐—ฒ๐—ฑ ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜๐—ถ๐˜€๐—ฒ - API Integration & Automation Obsession โ€“ Real Estate - Payment Processing - SaaS โ˜‘๏ธ ๐—–๐—น๐—ฒ๐—ฎ๐—ฟ ๐—–๐—ผ๐—บ๐—บ๐˜‚๐—ป๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป & ๐——๐—ผ๐—ฐ๐˜‚๐—บ๐—ฒ๐—ป๐˜๐—ฎ๐˜๐—ถ๐—ผ๐—ป โ€“ Youโ€™ll always know whatโ€™s happening with your project. Youโ€™ll have Loom videos explaining how everything works. โ˜‘๏ธ ๐—จ๐—ฆ ๐— ๐—ฎ๐—ฟ๐—ธ๐—ฒ๐˜ ๐—–๐—น๐—ถ๐—ฒ๐—ป๐˜ ๐—ฆ๐—ฝ๐—ฒ๐—ฐ๐—ถ๐—ฎ๐—น๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป - All my experience and solutions are based on American standards, best practices and expectations Hi, Iโ€™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. Iโ€™m the creator of the โ€œWordPress Plugin Dragon Frameworkโ€ and follow Robert C. Martinโ€™s Clean Code principles (SOLID, DRY, YAGNI) to ensure exceptional quality. ๐—›๐—ถ๐—ด๐—ต๐—น๐—ถ๐—ด๐—ต๐˜๐˜€ ๐—ข๐—ณ ๐— ๐˜† ๐—–๐—ผ๐—ฟ๐—ฒ ๐—˜๐˜…๐—ฝ๐—ฒ๐—ฟ๐˜๐—ถ๐˜€๐—ฒ โœ” Custom WordPress API Integrations - API Development & API Automation - โœ” Real Estate IDX Plugin & MLS API Solutions - Housecall Pro โœ” Custom WordPress Plugin Development & WordPress Web Development โœ” Business Automation Solutions - Zapier - Zapier Workflows - Google Sheets โœ” WooCommerce API - E-commerce Solutions - SaaS Solutions - Data Synchronization - Stripe - PayPal ๐—›๐—ถ๐—ด๐—ต๐—น๐—ถ๐—ด๐—ต๐˜๐˜€ ๐—ข๐—ณ ๐— ๐˜† ๐—ข๐˜๐—ต๐—ฒ๐—ฟ ๐—–๐—ผ๐—บ๐—บ๐—ผ๐—ป๐—น๐˜† ๐—จ๐˜€๐—ฒ๐—ฑ ๐—ฆ๐—ธ๐—ถ๐—น๐—น๐˜€ โœ” Senior Developer - Laravel - PHP - React - XML - JSON โœ” API Expert - RESTful API - Google API - MLS API - RESTful API - RESTful Architecture - SOAP API - Google API - Laravel API - RESO API โœ” Business Automation Solutions - Zapier - Google Sheets Thanks for learning about me! If youโ€™re looking to get your WordPress plugin integration project done right the first time, ๐—ถ๐—ป๐˜ƒ๐—ถ๐˜๐—ฒ ๐—บ๐—ฒ ๐˜๐—ผ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฝ๐—ฟ๐—ผ๐—ท๐—ฒ๐—ฐ๐˜ ๐—ผ๐—ป ๐—จ๐—ฝ๐˜„๐—ผ๐—ฟ๐—ธ or ๐˜€๐—ฒ๐—ป๐—ฑ ๐—บ๐—ฒ ๐—ฎ ๐—ฑ๐—ถ๐—ฟ๐—ฒ๐—ฐ๐˜ ๐—บ๐—ฒ๐˜€๐˜€๐—ฎ๐—ด๐—ฒ. Iโ€™ll invite you to book a complimentary consultation call together. Talk soon! Rick aka Patrick Mac Gillis โ ๐˜พ๐™ค๐™ช๐™ก๐™™๐™ฃ'๐™ฉ ๐™๐™–๐™ซ๐™š ๐™—๐™š๐™š๐™ฃ ๐™๐™–๐™ฅ๐™ฅ๐™ž๐™š๐™ง ๐™ฌ๐™ž๐™ฉ๐™ ๐™๐™ž๐™˜๐™ '๐™จ ๐™ฌ๐™ค๐™ง๐™ , ๐™˜๐™ค๐™ข๐™ข๐™ช๐™ฃ๐™ž๐™˜๐™–๐™ฉ๐™ž๐™ค๐™ฃ, ๐™–๐™ฉ๐™ฉ๐™š๐™ฃ๐™ฉ๐™ž๐™ค๐™ฃ ๐™ฉ๐™ค ๐™™๐™š๐™ฉ๐™–๐™ž๐™ก๐™จ, ๐™ง๐™š๐™จ๐™ฅ๐™ค๐™ฃ๐™จ๐™ž๐™ซ๐™š๐™ฃ๐™š๐™จ๐™จ, ๐™–๐™ฃ๐™™ ๐™š๐™ซ๐™š๐™ง๐™ฎ ๐™ค๐™ฉ๐™๐™š๐™ง ๐™–๐™จ๐™ฅ๐™š๐™˜๐™ฉ ๐™ฎ๐™ค๐™ช'๐™™ ๐™š๐™ญ๐™ฅ๐™š๐™˜๐™ฉ ๐™›๐™ง๐™ค๐™ข ๐™– ๐™ฅ๐™ง๐™ค๐™›๐™š๐™จ๐™จ๐™ž๐™ค๐™ฃ๐™–๐™ก ๐™™๐™š๐™ซ๐™š๐™ก๐™ค๐™ฅ๐™š๐™ง. ๐™„๐™› ๐™„ ๐™ฃ๐™š๐™š๐™™ ๐™–๐™™๐™™๐™ž๐™ฉ๐™ž๐™ค๐™ฃ๐™–๐™ก ๐™ฌ๐™ค๐™ง๐™  ๐™ค๐™ง ๐™๐™–๐™ซ๐™š ๐™– ๐™ฃ๐™š๐™ฌ ๐™ฅ๐™ง๐™ค๐™Ÿ๐™š๐™˜๐™ฉ, ๐™๐™ž๐™˜๐™  ๐™ž๐™จ ๐™ฉ๐™๐™š ๐™ค๐™ฃ๐™ก๐™ฎ ๐™ค๐™ฃ๐™š ๐™„'๐™ก๐™ก ๐™ง๐™š๐™–๐™˜๐™ ๐™ค๐™ช๐™ฉ ๐™ฉ๐™ค! โž ๐Ÿ—ฃ ๐™๐™ค๐™— ๐™‚๐™ง๐™–๐™—๐™ค๐™ฌ๐™จ๐™ ๐™ž - ๐™Š๐™ฌ๐™ฃ๐™š๐™ง - ๐™‚๐™ช๐™ฃ๐™‚๐™ง๐™ค๐™ช๐™ฅ๐™ž๐™š

  • 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
Shah Fahad M.

Adelanto, California

$15/hr
5.0
3 jobs

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: โ€ข Full-Stack Web Development โ€ข Web Application Development โ€ข CMS Development โ€ข WordPress Development โ€ข Shopify Development โ€ข Wix Development โ€ข Squarespace Development โ€ข Webflow Development โ€ข Framer Development โ€ข Custom Plugin Development โ€ข API Integration & Third-Party Integrations โ€ข Payment Gateway Integration โ€ข Website Redesign & Optimization โ€ข Custom Dashboard Development โ€ข Landing Page Development โ€ข Ecommerce Website Development โ€ข Automation & Workflow Development Automation Expertise: โ€ข Zapier โ€ข Make โ€ข n8n โ€ข Twilio โ€ข Monday โ€ข Calendly โ€ข HubSpot CRM โ€ข OpenAI Integrations โ€ข CRM & Business Process Automation โ€ข 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? โ€ข Clean and maintainable code โ€ข Scalable architecture and best practices โ€ข Strong communication and transparency โ€ข Reliable delivery and ongoing support โ€ข 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
Matthew M.

Farmington, Arkansas

$90/hr
4.7
58 jobs

โš ๏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 meโ€”no strings attached. Even if you're unsure whether I'm the right fit, letโ€™s chat! Iโ€™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 donโ€™t have the answer, chances are I know someone who does. About Me Iโ€™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 itโ€™s SOAP, gRPC, REST, or GraphQL, Iโ€™ve designed, built, integrated, testedโ€”or optimizedโ€”solutions across the board. Technologies & Tools Hereโ€™s a non-exhaustive list of technologies Iโ€™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!

  • API Development
  • Node.js
  • JavaScript
  • React
  • Angular
  • Java
  • GraphQL
  • Kotlin
  • PHP
  • RESTful Architecture
  • .NET Core
  • API
Saad J.

West Hempstead, New York

$65/hr
4.9
92 jobs

โœจExperienced Senior API Integration Specialist with a DECADE of Expertise Building Scalable Solutions โœจ โญโญโญโญโญ 5-Star rating and 100% Client Satisfaction. Available for โ— FREE 15 MINUTE CONSULTATIONโ— โœ…API Integration โœ…Payment Gateway Integration โœ…Open AI API Integration โœ…ERP Integration โœ…Chatbot Integration โœ… Microservices Integration โœ…Marketing Integration โœ…Healthcare Integration โœ… Financial Integration โœ…Middleware Integration โœ…CRM Integration โœ…Social Media Integration โœ… Database Integration โœ… 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. ๐Ÿ’ผ Need to integrate your e-commerce platform with a payment gateway for frictionless transactions? Consider it done. ๐Ÿ“Š 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 dotsโ€”it'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: โžค ๐ŸŒŸ Why Choose Me? โœ… Client Satisfaction: Committed to exceeding client expectations by delivering high-quality, scalable, and user-friendly solutions. โœ… Proven Track Record: Successfully delivered a diverse range of projects, from small-scale applications to enterprise-level systems. โœ… 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. ๐ŸŒŸ

  • 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
Gary S.

Birdsboro, Pennsylvania

$75/hr
5.0
39 jobs

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: โ€ข Custom Software Development (Rust, Go, C++, PHP, and more) โ€ข Principal-Level Leadership/Guidance for Engineering Teams โ€ข Fully Custom WP Plugin and Theme Development (PHP, JS/TypeScript, HTML/CSS) โ€ข Shopify Plus Development (Custom Themes, Apps, and Extensions) โ€ข API Integration โ€ข Theme Installation and Setup โ€ข Plugin Installation and Setup โ€ข Single Sign-On (SSO) Implementation โ€ข Infrastructure, CI/CD, & DevOps (AWS, Cloudflare) โ€ข 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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