Hire the Best PhoneGap Developers
in the United States

I'm a full-stack web developer who builds custom websites and web applications that solve real business problems. I specialize in complex projects - ecommerce platforms, business management systems, and specialized tools that require careful architecture and custom features. I handle the complete technical lifecycle: custom development from scratch, database design, cloud and server infrastructure, domain management, and ongoing hosting and support. My experience spans payment processing integrations (Stripe), communication systems (Twilio), and scalable solutions built on platforms like Google Cloud and AWS. What sets me apart is my ability to translate complex requirements into clean, maintainable code and my commitment to transparent communication throughout the project. I don't just build websites - I create reliable, performance-optimized solutions that grow with your business. Whether you need a brand new platform, want to modernize an existing site, or require end-to-end technical management, I deliver on schedule and within budget. Let's discuss how I can bring your vision to life.

Over 30 years of contact center experience. Pivotal participant in many large contact center design and migration efforts. Cisco UCCE and Avaya are the best examples. Lately lots of 3CX,FreePBX and Asterisk assignments. Almost every call center change or migration requires a new recording. All of the recordings can be in the same voice making for a better user experience. We have invented a new scenario that allows us to provide our clients a Google TTS methodology. If the client can provide the text, we can turn the recordings around in very short order. We can do English, Spanish and many other languages. This is a very exciting technology shift that allows us to make the new recordings in minutes at at a very affordable price.

Experienced and versatile database and web developer. Wordpress, Paid Memberships Pro, plugins, C# .Net, AWS (EC2, Route53, Lambda, API Gateway), Node.js, jQuery, HTML, CSS, Databases REST API, Twilio SMS and Sendgrid.

Expert Twilio & AI Conversational Solutions Developer | Top 1% Expert-Vetted Talent AI Communication Solutions Architect specializing in Twilio integrations and conversational AI tools that transform customer interactions. As an Expert-Vetted Talent (top 1% on Upwork), I help businesses implement intelligent communication systems that deliver measurable results. I combine deep technical expertise with strategic consulting to create solutions that solve real business problems. My Expertise: Twilio Development & Integration Specialist - Full-stack Twilio platform development with 7+ years of experience - Custom SMS, voice, and messaging workflows that scale with your business - Integration of Twilio services with existing business systems and CRMs AI Conversational Tool Development - Custom chatbots, SMS bots, and voice assistants powered by ChatGPT and other LLMs - Multi-channel AI solutions (phone, SMS, WhatsApp, Facebook Messenger, live chat) - Intelligent IVR systems that improve customer experience and operational efficiency Strategic Communication Consultant - Process analysis to identify automation opportunities - ROI-focused solutions that deliver measurable business impact - Clear roadmaps for implementing AI communication strategies Results I've Delivered: - Developed a custom missed call Slack app that reduced agent response time from 30+ minutes to under 3 minutes, improving customer satisfaction and sales conversion - Created custom screen pop tools for Five9 that decreased call handling time by 6 seconds per call and reduced agent training by 4 hours per client - Built React components and plugins for custom call-center dashboards that streamlined agent workflows - Implemented multi-channel messaging flows with AI integration that provide 24/7 customer support Technology Stack: Twilio, ChatGPT (OpenAI API), Claude API, Ruby, JavaScript, React, Node.js, Bootstrap, WhatsApp Business API, Facebook Messenger API, Slack API, Airtable API, Monday.com API, Pipedrive API, Make.com API, Zapier API, Hubspot API, and more. I bring both technical expertise and business acumen to every project. Whether you need implementation support or strategic consulting on your communication systems, I'm here to help you leverage AI and cloud communication platforms to achieve your business goals. Let's discuss how we can transform your customer interactions.

Software developer with 20+ years experience. Many of these years in large telecommunication companies. Developed and project managed complex products. I am focused in a few areas. This focus and experience enables quicker turnaround for you. Expert in Twilio. Tier 1 partner of Twilio and recognized by Twilio itself. Expert in complex asterisk PBX setup for multi-extensions, multi-trunks, queues, hunt group, IVR. Complex IVRs, customizations and scripts for asterisk. Large PBX setup using Kamailio as proxy. Expert in developing large distributed systems using Amazon AWS. Expert in Roku. Developed several popular Roku Channels including that of Fortune 100 companies (Details provided on request)

I build, troubleshoot, and optimize production voice AI systems using Pipecat, LiveKit, SIP, Telnyx, Retell, Vapi, and advanced AI IVR. My greatest strength is prompt and conversation engineering for voice agents. Many voice agents technically work but still give inaccurate answers, call the wrong tools, qualify leads inconsistently, mishandle interruptions, lose control of the conversation, or break when callers go off script. These problems are often mistaken for coding or platform failures. I diagnose and improve the prompts, tool instructions, conversation flows, routing logic, guardrails, and fallback behavior that determine how an agent performs during real calls. I also work across the infrastructure beneath the conversation: • Self-hosted Pipecat and LiveKit voice agents • Custom SIP trunks and Telnyx telephony integrations • Conversational AI IVR and intelligent call routing • Tool calling, DTMF navigation, transfers, escalation, and fallback logic • Retell and Vapi agents when managed platforms are the right solution • CRM, scheduling, n8n, webhook, and workflow integrations • Troubleshooting call quality, latency, routing, and production failures I have built conversational agents for HVAC companies, mortgage and tax professionals, hospitality businesses, and other service companies. This includes a self-hosted multilingual voice agent for a hotel in Germany. These agents answer calls, qualify leads, automate intake, answer FAQs, book appointments, route callers, and escalate urgent issues. More importantly, they are designed to remain accurate and useful when real callers behave differently from the ideal test script. Before moving into voice AI, I ran maintenance operations for a manufacturing company that grew from a $20 million to $100 million valuation. That experience shapes how I approach every build: customer experience first, reliable operations, and clear business outcomes. I support businesses and agencies that need someone who can design, improve, rescue, or deploy a voice AI system beyond the basic platform setup.