Hire the Best PayPal API Developers
Islamabad, Pakistan
Hi, I am a Senior Full Stack Developer specializing in building high-performance web applications, SaaS platforms, and custom enterprise software. From crafting responsive, pixel-perfect user interfaces to designing complex backend architectures and databases, I handle the entire development lifecycle so you can focus on growing your business. Whether you are a startup validating an MVP or an established business needing to scale your infrastructure, I write clean, maintainable, and production-ready code tailored to your exact needs. ๐ป What I Do Best Custom Web & SaaS Development: Building end-to-end web applications, interactive dashboards, and scalable SaaS platforms. Frontend Development: Creating highly responsive, accessible, and dynamic user interfaces with a focus on seamless UX. Backend & API Development: Architecting secure, high-speed RESTful and GraphQL APIs, microservices, and robust server-side logic. Database Design: Structuring secure and optimized relational and NoSQL databases for lightning-fast querying. Third-Party Integrations: Seamlessly connecting payment gateways (Stripe, PayPal), CRMs, AWS services, and modern APIs (including OpenAI/Claude integration if needed). ๐ ๏ธ My Technical Stack To ensure your application is built on modern, reliable technologies, I specialize in the following stack: Frontend: React.js, Next.js, TypeScript, JavaScript (ES6+), Tailwind CSS, Redux, HTML5/CSS3 Backend: Node.js, Express.js, Python (Django, FastAPI, Flask) Databases: PostgreSQL, MySQL, MongoDB, Redis Cloud & DevOps: AWS (EC2, S3, RDS), Docker, CI/CD Pipelines, GitHub Actions, Vercel, Heroku Architecture & Version Control: Git, REST APIs, GraphQL, MVC, Microservices. Why Work With Me? โ End-to-End Ownership: I manage both the frontend and backend, eliminating the need to hire multiple developers. โ Clean & Scalable Code: I follow industry best practices, ensuring your app can grow with your user base without technical debt. โ Business-First Approach: I don't just write code; I build solutions designed to increase efficiency, drive sales, and improve customer experience. โ Transparent Communication: Daily or weekly updates, prompt responses, and reliable delivery timelines. Recent Projects Include: Custom SaaS platforms and multitenant architectures E-commerce web applications and admin dashboards Inventory and business management systems Complex API integrations and automated workflows If you are looking for a dedicated Full Stack Developer who delivers high-quality, reliable results on time, letโs talk. Send me a message with a brief overview of your project, and let's build something great together!
- Full-Stack Development
- Web Development
- SaaS Development
- Node.js
- React
- Python
- JavaScript
- TypeScript
- API Integration
- REST API
- Django
- FastAPI
- MERN Stack
- Web Design
- Chatbot Development
- Artificial Intelligence
- Deep Learning
- Generative AI
- AI Agent Development
- AI Bot
Islamabad, Pakistan
๐ ๐ ๐ญ๐ฌ๐ฌ% ๐ฟ๐ฒ๐ณ๐๐ป๐ฑ ๐ถ๐ณ ๐ ๐๐ฒ๐ ๐๐ต๐ฒ ๐๐ฟ๐ผ๐ป๐ด ๐ฒ๐ ๐ฝ๐ฒ๐ฐ๐๐ฎ๐๐ถ๐ผ๐ป ๐ฎ๐ป๐ฑ ๐ฐ๐ฎ๐ปโ๐ ๐ฑ๐ฒ๐น๐ถ๐๐ฒ๐ฟ. ๐ก๐ผ ๐พ๐๐ฒ๐๐๐ถ๐ผ๐ป๐ ๐ฎ๐๐ธ๐ฒ๐ฑ! I architect the AI systems other developers can't ship production RAG pipelines, multi-agent LLM apps and chatbots on a full-stack React, Next.js and Node.js base. ๐ฃ๐ฟ๐ฒ๐๐ถ๐ผ๐๐๐น๐ ๐ง๐ผ๐ฝ ๐ฅ๐ฎ๐๐ฒ๐ฑ ๐ฃ๐น๐๐ (๐๐ผ๐ฝ ๐ญ% ๐ผ๐ป ๐จ๐ฝ๐๐ผ๐ฟ๐ธ) โ AI architecture, not AI demos production multi-tenant platforms that scale โ End-to-end ownership agent architecture to deployment to team handoff โ 15+ years, 50+ AI agents in production, 24,000+ Upwork hours โ Multi-LLM, multi-tenant, multi-channel platform scale, not script scale โ Top Rated Plus with 100% JSS sustained, not seasonal ๐ About I architect production AI agent systems multi-tenant LLM orchestration, agentic RAG, voice AI, and MCP servers for SaaS founders and agencies who need real systems, not chatbot demos. 15+ years of full-stack engineering means your AI doesn't just work in a Loom video; it scales, bills, and survives real traffic. ๐ What I Deliver โ AI Agent Platforms Multi-tenant orchestration with multi-LLM execution (OpenAI, Anthropic, Gemini), agentic RAG, MCP servers, embeddable widgets, LangSmith tracing, cost/KPI analytics โ Voice AI & Conversational Agents Production voice with VAPI, ElevenLabs, Twilio inbound/outbound calling, transcription, workflow triggers, per-call cost attribution โ AI Workflow Automation n8n-powered agentic workflows connecting LLMs, CRMs, payments, and 70+ APIs into autonomous business processes โ Multi-Tenant SaaS Infrastructure Laravel/Node backends with per-tenant isolation, subscription billing, role-based access, React frontends scaling 100 to 100K users โ Enterprise AI Integrations Stripe, Salesforce, HubSpot, Go High Levek (GHL) ,Shopify, OpenAI, Anthropic, Gemini, ElevenLabs, VAPI, Twilio webhook routing, async queues, full observability ๐๏ธ What I Build AI Agent Orchestration Platforms Production multi-tenant systems that deploy, manage, monitor AI agents at scale: multi-LLM, agentic RAG (Pinecone/MongoDB), streaming chat, cost tracking, KPI dashboards, embeddable widgets. Voice AI & Conversational Automation Voice agents with ElevenLabs, VAPI, Twilio inbound/outbound calls, real-time transcription, post-call analysis, workflow triggers, per-call cost attribution. n8n Workflow Automation Builders No-code automation backed by n8n with drag-and-drop editors, multi-step agentic workflows, webhooks, 20+ tool integrations (Slack, Sheets, Asana, ClickUp, HubSpot). MCP Servers & Agent Tool Integration Custom Model Context Protocol servers giving AI agents tool-use, structured outputs, and secure access to internal data. Multi-Tenant SaaS Backends Laravel backends with per-tenant isolation, subscription billing, role-based permissions, REST APIs built to scale from first customer to thousands. React Frontends at Scale TypeScript React 18 with BLoC, real-time streaming (Socket-io + Pusher), embeddable widgets, browser extensions, visual workflow builders CI/CD deployed. API Integration Systems 70+ integrations across Stripe, Salesforce, HubSpot, Shopify, FedEx, VAPI, Twilio, OpenAI, Anthropic, Gemini webhook routing, async queues (Laravel Horizon), error tracking. ๐ Signature Work ๐ท Studio98-ai AI Workforce Platform (flagship): Multi-tenant AI agent orchestration serving 50+ clients across sales, marketing, ops, support. LangChain orchestration with OpenAI/Anthropic/Gemini, agentic RAG via MongoDB/PostgreSQL, MCP server, n8n workflows, LangSmith tracing. React 18 frontend with 27 modules, embeddable chat widget, browser extension, visual workflow builder, real-time SSE streaming. ๐ท Rave 2.0 Multi-tenant SaaS retail platform with subscription management, analytics, drag-and-drop page builder. ๐ท Enterprise Jira Governance Multi-team Agile system for 50+ developers with workflow automation and executive dashboards. ๐ ๏ธ Core Tech Stack AI & Agents: LangChain ยท LangGraph ยท LangSmith ยท MCP ยท Agentic RAG (Pinecone, MongoDB) ยท OpenAI ยท Anthropic Claude ยท Gemini ยท Prompt Engineering Voice AI: VAPI ยท ElevenLabs ยท Twilio ยท Real-time Transcription Automation: n8n ยท Make ยท Webhooks Backend: Laravel 11 ยท PHP 8.1+ ยท Node.js ยท TypeScript ยท Nova ยท Sanctum ยท Octane ยท Horizon ยท Redis ยท MongoDB ยท PostgreSQL Frontend: React 18 ยท TypeScript ยท Vue.js ยท Inertia.js ยท Socket-io ยท Pusher Infra: Docker ยท AWS ยท GCP ยท Firebase ยท CI/CD Delivery: Scrum (PSM I) ยท Jira ยท Confluence ยท ACP-620 Last updated: 01.07.2026
- API
- API Development
- Laravel
- React
- PHP
- TypeScript
- RESTful API
- Zapier
- Vue.js
- AI Development
- Stripe API
- PayPal Integration
- Vercel
- API Integration
- Node.js
- JavaScript
- AWS Development
- Replit
- Next.js
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
- API Development
- API Integration
- Automation
- Real Estate IDX
- WordPress
- WooCommerce
- MLS Consulting
- WordPress Plugin
- Web Development
- RESTful API
- PHP
- Zapier
- JSON API
- GPT API
Yerevan, Armenia
"He reduced our API response time by 80%" โ SaaS founder after Laravel optimization Senior Laravel developer who transforms complex business ideas into profitable, scalable platforms. With 300+ completed projects and $1M+ in delivered value, I specialize in the challenging stuff that makes or breaks businesses. What I actually deliver: - Multi-tenant SaaS platforms serving thousands of users - AI-powered Laravel applications with ChatGPT integration - Performance optimization delivering 3-5x speed improvements - "Unfixable" Laravel rescue projects brought back to life - Enterprise APIs processing millions of requests daily Recent client wins: โ Scaled startup's Laravel app from 100 to 10,000+ concurrent users โ Reduced server costs by 60% through database optimization โ Built SaaS platform generating $50K+ monthly recurring revenue โ Migrated legacy system to modern Laravel 11 architecture My TALL Stack expertise: Laravel 11 (any version) โข Livewire 3 โข Alpine.js โข Tailwind CSS โข Filament Admin โข Vue.js โข Inertia.js โข Laravel Nova โข Sanctum API โข Laravel Octane โข Docker deployment Why clients choose me over other developers: โ 9+ years preventing costly mistakes that doom projects โ Senior-level delivery speed (days vs weeks for complex features) โ Long-term partnership approach (not disappearing after launch) โ Proven at enterprise scale with Fortune 500 clients โ 100% Job Success Score with zero failed projects Perfect for: - SaaS founders needing scalable Laravel architecture - CTOs requiring performance optimization expertise - Agencies seeking reliable Laravel development partner - Startups wanting enterprise-grade technical foundation Next steps: Send me your Laravel challenge with current pain points. I'll review your requirements and provide a clear roadmap with realistic timelines and guaranteed outcomes. Available for complex builds, rescue projects, and long-term partnerships.
- PayPal
- API
- Laravel
- PHP
- Vue.js
- MySQL
- JavaScript
- Stripe
- RESTful API
- PostgreSQL
- Shopify
- CS-Cart
- WordPress
- Yii
- CodeIgniter
Jauharabad, Pakistan
You don't need someone to write code. You need someone who understands your business problem and delivers a backend that doesn't need to be rebuilt in a year. 6+ years working in PHP and Laravel across SaaS platforms, e-commerce systems, and custom WordPress backends. I've shipped 450+ projects and I maintain open-source Laravel packages actively used by other developers - that's not a line on a resume, you can read the code on GitHub before you hire me. What I actually work on: โ Laravel SaaS backends - multi-tenant architecture, billing integrations (Stripe, PayPal), job queues, real-time features with Reverb or Pusher โ RESTful and headless API development - versioning, authentication (Sanctum, Passport, JWT), third-party integrations, and passive contract monitoring so integrations don't silently break โ WordPress - custom plugins, hook architecture, WooCommerce extensions, REST API bridges between WP and Laravel systems โ Performance and refactoring - I regularly take over legacy Laravel codebases, add test coverage, resolve N+1 issues, and modernize to current standards without breaking production โ E-commerce - order pipelines, multi-channel inventory (Shopify, WooCommerce, Amazon, Etsy), payment gateway integrations A few things I've shipped publicly: Built a multi-channel notification engine for Laravel 12 with parallel dispatching and smart routing. A static analysis tool that catches dangerous migrations before they hit production. A passive API contract monitor that detects breaking changes in third-party REST APIs using probabilistic inference. These aren't portfolio pieces - they're tools other developers use. On working with AI: Yes, I use AI tools in my workflow. The difference between a developer who uses AI well and one who doesn't is knowing what to verify, what to question, and what to never let near production without review. My open-source work exists partly because I kept running into problems that AI-generated boilerplate can't solve. Who I work well with: Founders and technical leads who know what they want to build but need someone who can own the backend without constant hand-holding. If you have a spec, I'll ask the right questions and deliver clean, documented code. If you have a problem, I'll figure out the architecture. Available for fixed-price projects and ongoing contracts. Response time is fast - usually within 10 minutes
- API
- API Development
- PHP
- Web Development
- WordPress
- Custom PHP
- Laravel
- Core PHP
- PHP Script
- Website Integration
- Website & CMS Bug Fix
- Website Optimization
- Ecommerce Website Development
- Website Customization
- API Framework
- API Documentation
- API Integration
- AI Development
- ChatGPT API Integration
- Next.js
Kalaheo, Hawaii
Top Rated USA Based! Online Payments Specialist. 10+yrs of experience with Low & High Risk Merchants Utilizing Shopify WIX Woo eCommerce Platforms. Specializing in Startups and able to service enterprise level merchants also. Happy to help with the following: - Native Gateway Integration for popular platforms like Shopify, Wix, and WooCommerce (eliminating cart redirects) - Automated Recurring Payments for subscription-based "subscribe & save" offerings - A convenient Buy Now Pay Later option for your customers - An Invoice Feature that allows you to send payable email invoices and text payment links - Comprehensive Credit Card Payment Processing capabilities - Options for Crypto Payment Processing - Echeck Payment Processing functionality - Integrated AI Marketing Tools to support your promotional efforts - Advanced Fraud Tools to protect your transactions - Chargeback Alerts to help you manage payment disputes - ApplePay integration for seamless mobile payments - QuickBooks Integration for streamlined accounting - POS systems and Card Readers for efficient in-person sales * Worldwide Payments Solutions for Any Region and Products or Service type * Navigating the challenges High Risk Merchant Account Setup * Multiple MID's for volume load balancing or different region coverage * Fast Timelines for Approval, Integration, and Deployment * Full project management from start to finish Constant Communication is key to me when dealing with something as important as your sales revenues and functionality. Let's keep in touch, Aloha!
- Wix
- Shopify
- API Integration
- Payment Gateway Integration
- Payment Gateway
- Merchant Account Setup
- Payment Processing
- Payment Functionality
- Payment Plugin
- Mobile Payment Functionality
- In-App Subscription
- Ecommerce
- Ecommerce Store Setup
- Ecommerce Plugin Installation
- Ecommerce Platform
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Rates charged by PayPal API Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a PayPal API Developer on Upwork?
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Depending on availability and the quality of your job post, itโs entirely possible to sign up for Upwork and receive PayPal API Developer proposals within 24 hours of posting a job description.
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