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I design, code and build production-ready SaaS, Full-Stack, VoIP, CPaaS, UCaaS, Contact Center, SIP/RTP/WebRTC, AI Voice and CRM platforms. 20+ years across software engineering, architecture and delivery, with 90+ successful Upwork projects. Need one technical partner who can own the solution from architecture to production? I work across frontend, backend, APIs, databases, real-time communications, AI integrations, cloud and DevOps. 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 • Multi-tenant SaaS, CRM/ERP, admin portals, customer portals and enterprise applications • CPaaS, UCaaS, CCaaS, hosted/multi-tenant PBX and telecom platforms • Predictive, progressive, power and automated dialers • IVR, call queues, routing, recording, transcription, call analytics and agent management • AI Voice Agents, AI receptionists, conversational AI and real-time voice systems • WebRTC softphones, browser calling, SIP clients and real-time communication • REST/GraphQL APIs, WebSockets, webhooks and third-party integrations • CRM, ERP, payment, telecom carrier, DID, SMS and enterprise system integrations • E-commerce, Magento/headless commerce, mobile commerce and PWAs • MVP, platform modernization, feature development and enterprise-scale systems 𝗧𝗘𝗟𝗘𝗖𝗢𝗠 & 𝗥𝗘𝗔𝗟-𝗧𝗜𝗠𝗘 FreeSWITCH, Asterisk, FusionPBX, FreePBX, VICIDIAL, SIP, RTP, WebRTC, SIP.js, ESL, AGI, AMI, ARI, IVR, DID, DNC, SIP trunking, carrier integration, SBC, telecom billing, call recording, queues, dialers and voice broadcasting. 𝗔𝗜 𝗩𝗢𝗜𝗖𝗘 & 𝗔𝗚𝗘𝗡𝗧𝗜𝗖 𝗔𝗜 OpenAI, Claude, Gemini, OpenAI Realtime API, Deepgram, ElevenLabs, LiveKit, LangChain, LangGraph, MCP, RAG, vector databases, AI agents, knowledge assistants, AI customer support, call automation and CRM-integrated AI workflows. 𝗙𝗨𝗟𝗟-𝗦𝗧𝗔𝗖𝗞 Frontend: React, Next.js, Vue.js, Angular, JavaScript, TypeScript, Tailwind CSS, Material UI, PWA Backend: Node.js, NestJS, Python, FastAPI, Django, Laravel, PHP, Go Mobile: React Native, Flutter, Ionic, Android, iOS APIs: REST, GraphQL, WebSockets, OpenAPI, Swagger, OAuth, JWT, Webhooks, MCP Data: PostgreSQL, MySQL, MongoDB, Redis VOIP/Server: Vicidial, FreePBX, FusionPBX, Issabel UcaaS, Linux, Docker/K8, AWS/GCP/Azure/VPS, FreeSWITCH, Asterisk 𝗖𝗟𝗢𝗨𝗗, 𝗗𝗘𝗩𝗢𝗣𝗦 & 𝗣𝗥𝗢𝗗𝗨𝗖𝗧𝗜𝗢𝗡 Linux, Docker, Kubernetes, Terraform, AWS, Azure, Google Cloud, Nginx, HAProxy, CI/CD, GitHub Actions, GitLab CI, monitoring, logging, Prometheus, Grafana, Loki, auto-scaling, high availability and production deployment. 𝗘-𝗖𝗢𝗠𝗠𝗘𝗥𝗖𝗘 & 𝗘𝗡𝗧𝗘𝗥𝗣𝗥𝗜𝗦𝗘 𝗜𝗡𝗧𝗘𝗚𝗥𝗔𝗧𝗜𝗢𝗡 Magento 2, GraphQL, Headless Commerce, PWA Commerce, OMS, SAP, Navision, Unicommerce, Flute Commerce, Razorpay and custom enterprise integrations. Experience includes QSR, retail, insurance, banking, airline, real estate and environmental platforms. 𝗔𝗥𝗖𝗛𝗜𝗧𝗘𝗖𝗧𝗨𝗥𝗘 • Solution/software architecture and system design • Database, API and integration architecture • Microservices and event-driven architecture • Multi-tenant and white-label SaaS architecture • Real-time communication architecture • Cloud architecture and containerization • Security, scalability and performance optimization • High availability and disaster recovery 𝗧𝗥𝗢𝗨𝗕𝗟𝗘𝗦𝗛𝗢𝗢𝗧𝗜𝗡𝗚 & 𝗠𝗢𝗗𝗘𝗥𝗡𝗜𝗭𝗔𝗧𝗜𝗢𝗡 I can analyze existing systems, identify architectural bottlenecks, troubleshoot VoIP/SIP issues, optimize APIs and databases, modernize legacy applications, improve scalability, integrate new services and take existing products toward production readiness. 𝗦𝗘𝗟𝗘𝗖𝗧𝗘𝗗 𝗦𝗬𝗦𝗧𝗘𝗠𝗦 Enterprise CCaaS | AI Voice Agents | UCaaS | CPaaS | Telecom ERP | Hosted PBX | Multi-Tenant PBX | FreeSWITCH/Asterisk | VICIDIAL | Predictive Dialers | WebRTC Calling | Telecom Billing | CRM | AI Knowledge Platforms | Magento Headless Commerce | OMS/SAP Integration | Workflow Automation | Call Analytics 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗛𝗜𝗥𝗘 𝗠𝗘 ✓ Architecture + hands-on development ✓ End-to-end ownership from discovery to production ✓ Full-Stack + SaaS + AI + VoIP + Cloud/DevOps ✓ Strong telecom and real-time communication experience ✓ Production-focused, scalable and maintainable engineering ✓ Able to work with an existing codebase or build from zero If your project combines SaaS, Full-Stack development, AI, APIs, CRM, VoIP, CPaaS, Contact Center, e-commerce or cloud infrastructure, I can architect, develop, integrate and deploy the complete production system. 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗖𝗔𝗡 𝗘𝗫𝗣𝗘𝗖𝗧 Clear architecture, practical technical decisions, clean APIs, maintainable code and production-ready deployment not just a prototype. I can join at any stage: idea/MVP, architecture, existing codebase, feature development, system integration, performance optimization or production troubleshooting. 𝗟𝗘𝗧’𝗦 𝗕𝗨𝗜𝗟𝗗 Have an existing system that needs improvement, or a product that needs to be built from scratch? Share your requirements, current architecture/codebase and goals. I can identify the right architect

Missed calls cost you bookings, revenue, and repeat customers. I build AI voice agents and VoIP systems that answer 24/7, book appointments, route calls, and sound genuinely human — so your phone stops being a bottleneck. I'm a Top Rated, 100% Job Success VoIP engineer with 20+ years in telecom and 5+ years building production voice AI agents. I've shipped agents for clinics, restaurants, fintech, and coaching businesses across the US, UAE, Australia, and India — handling real-world problems like appointment booking, multilingual support, call transfers, and SIP routing that actually works in production. I cover the complete voice stack: Carrier/SIP → Kamailio/PBX/CPaaS → STT → LLM → TTS → CRM/API/Calendar What I can do for you: - AI voice agents that book, answer, qualify, and convert — ElevenLabs, Retell AI, Vapi, OpenAI, Ultravox, Pipecat, LiveKit, Dograh — with barge-in, interruption handling, and natural turn-taking - AI automation — WhatsApp/Telegram bots, Harmis Agent, MCP servers, function calling, and integrations with all major LLMs and APIs - End-to-end VoIP/PBX systems — Asterisk, FreePBX, Kamailio, OpenSIPS, FreeSWITCH, SBC, load balancing, failover, high availability - CPaaS — Twilio, Plivo, Telnyx, SignalWire, Bandwidth, Vonage, Sinch, Agora - Multilingual & localized agents (EN/HI/TA/Indian languages and more, with AU/NZ/UAE localization) - Custom tools, API integrations, calendar booking, CRM, and call routing - Full-stack delivery when needed — Node.js, React, REST APIs Unlike no-code "prompt and pray" builders, I bring real SIP/RTP engineering depth — I troubleshoot one-way audio, NAT traversal, codec mismatches, and carrier interoperability at the packet level. Your system stays reliable, scalable, and secure under real call volume. If you want a voice agent that sounds human and a phone system that just works, let's talk. Tell me what's breaking or what you're trying to launch, and I'll tell you exactly how I'd build it.

✅ Top Rated Plus AI Agent Development ✅ 100% Job Success Score ✅ Fluent English Verified AI Voice Agents | Twilio Expert | SMS, Calling & CRM Automation I help businesses automate customer communication using AI Voice Agents, SMS Automation, Calling Systems, CRM Integrations, and Communication Workflows. With 130+ completed projects, Top Rated Plus status, and a 100% Job Success Score, I specialize in building production-ready systems that answer calls, qualify leads, book appointments, automate follow-ups, improve customer response times, and reduce manual work. My expertise combines modern AI technologies with real-world communication infrastructure, helping businesses move from manual processes to scalable automation. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 📞 Voice AI & Communication Automation AI Voice Agents, AI Receptionists, AI Calling Systems, Appointment Booking Agents, Lead Qualification Systems, Customer Support Automation, Contact Centers, IVR Systems, SIP, SMS Automation, Call Routing 🤖 AI Solutions & Conversational Systems OpenAI, Claude, Gemini, Vapi, Retell AI, Conversational AI, Knowledge Assistants, Internal AI Tools, Business Automation ⚙️ CRM & Workflow Automation Lead Management, Pipeline Automation, Customer Communication Workflows, CRM Integrations, Automated Follow-Up Systems 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 📞 AI Voice Agents & Calling Systems • AI Receptionists • AI SDRs • Appointment Booking Agents • Customer Support Agents • Outbound Calling Systems • Inbound Voice Automation • Voice AI Integrations 📡 Twilio & Communication Solutions • Twilio Development • SMS Platforms • IVR Systems • Call Center Solutions • Twilio Flex • Voice & Messaging Automation • Toll-Free & A2P 10DLC Solutions ⚙️ CRM & Business Automation • HubSpot Integrations • GoHighLevel Automation • Salesforce Integrations • Custom CRM Development • Lead Qualification Workflows • Business Process Automation 🧠 OpenAI, Claude & AI Integrations • ChatGPT Solutions • Claude Integrations • AI Assistants • Knowledge Systems • Internal AI Tools • RAG Applications 📱 SaaS, Web & Mobile Applications • Customer Portals • Admin Dashboards • AI-Powered Platforms • Web Applications • Mobile Applications 🖥️ Backend Development Python, Node.js, FastAPI, Express.js, REST APIs, Webhooks, Microservices 💻 Frontend Development React, Next.js, Vue.js, Angular 📱 Mobile Development React Native, Flutter, Swift, Kotlin ☁️ Cloud & Infrastructure AWS, Azure, GCP, Docker, CI/CD, Serverless Architectures 📊 Databases & AI Infrastructure PostgreSQL, MongoDB, Firebase, Supabase, Vector Databases 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 • Real Estate & Property Management • Healthcare & Wellness • LegalTech • Financial Services • Logistics & Transportation • Professional Services • Call Centers • Home Services • SaaS & Technology Companies If you're looking to automate calls, SMS, customer communication, lead qualification, appointment booking, or customer support using AI and Twilio-based communication systems, let's discuss your project. Keywords: AI Voice Agent, AI Receptionist, AI Calling Agent, Twilio Developer, SMS Automation, IVR Development, CRM Automation, Voice AI, OpenAI, Claude, Vapi, Retell AI, Contact Center Solutions, Call Center Automation, Lead Qualification, Appointment Booking, Customer Communication Automation, Workflow Automation, Conversational AI, SaaS Development, Python, Node.js, React

Hello! I am an expert 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 and 𝐀𝐈 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 with a strong track record of building robust API integrations, custom EMR systems, and automated communication workflows. With deep expertise in 𝐏𝐇𝐏, 𝐋𝐚𝐫𝐚𝐯𝐞𝐥, 𝐏𝐲𝐭𝐡𝐨𝐧, 𝐍𝐨𝐝𝐞.𝐣𝐬 and modern backend stacks, I design and implement custom databases, connect 3rd-party platforms, and build tailored tools that streamline business operations. Here is how I can add value to your projects: 🔌 𝐀𝐏𝐈 𝐈𝐍𝐓𝐄𝐆𝐑𝐀𝐓𝐈𝐎𝐍 & 𝐀𝐔𝐓𝐎𝐌𝐀𝐓𝐈𝐎𝐍 • 𝐂𝐮𝐬𝐭𝐨𝐦 𝐑𝐄𝐒𝐓 𝐀𝐏𝐈𝐬: Building robust, secure, and well-documented API endpoints. • 𝐂𝐑𝐌 & 𝐒𝐚𝐚𝐒 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Connecting 𝐙𝐨𝐡𝐨 𝐀𝐏𝐈𝐬, 𝐆𝐨𝐇𝐢𝐠𝐡𝐋𝐞𝐯𝐞𝐥 (𝐆𝐇𝐋) 𝐀𝐏𝐈, Pipedrive, Airtable, and Asana for seamless data sync. • 𝐧𝟖𝐧 & 𝐙𝐚𝐩𝐢𝐞𝐫 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬: Streamlining tasks, syncing leads, and scraping web data to eliminate manual work. • 𝐀𝐈 & 𝐕𝐨𝐢𝐜𝐞 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Integrating 𝐄𝐥𝐞𝐯𝐞𝐧𝐋𝐚𝐛𝐬 for realistic voice generation and AI-powered automation. 💳 𝐏𝐀𝐘𝐌𝐄𝐍𝐓𝐒 & 𝐖𝐄𝐁 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 • 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐆𝐚𝐭𝐞𝐰𝐚𝐲 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: 𝐒𝐭𝐫𝐢𝐩𝐞 & 𝐏𝐚𝐲𝐏𝐚𝐥 setup, checkout sessions, custom payment links, subscription management, and webhook handling. • 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 & 𝐖𝐨𝐨𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞: WooCommerce setup, payment gateway integrations, Elementor customization, and fast landing pages. 🏥 𝐄𝐌𝐑, 𝐇𝐄𝐀𝐋𝐓𝐇𝐂𝐀𝐑𝐄 𝐓𝐄𝐂𝐇 & 𝐏𝐀𝐓𝐈𝐄𝐍𝐓 𝐏𝐎𝐑𝐓𝐀𝐋𝐒 • 𝐄𝐌𝐑 𝐂𝐨𝐧𝐟𝐢𝐠𝐮𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Specialized in configuring and customizing 𝐎𝐩𝐞𝐧𝐄𝐌𝐑 systems for Primary Care Clinics. • 𝐂𝐮𝐬𝐭𝐨𝐦 𝐏𝐚𝐭𝐢𝐞𝐧𝐭 𝐏𝐨𝐫𝐭𝐚𝐥𝐬: Development of secure, HIPAA-compliant patient portals and custom EMR workflows. • 𝐏𝐨𝐫𝐭𝐚𝐥 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲: Managing secure clinic servers, patient portals, data backups, and access management. 🚀 𝐓𝐖𝐈𝐋𝐈𝐎, 𝐕𝐎𝐈𝐏 & 𝐂𝐀𝐋𝐋 𝐂𝐄𝐍𝐓𝐄𝐑𝐒 • 𝐕𝐨𝐈𝐏 & 𝐂𝐚𝐥𝐥 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: Configuration of 𝐃𝐢𝐚𝐥𝐟𝐢𝐫𝐞, 𝐓𝐞𝐥𝐧𝐲𝐱, 𝟑𝐂𝐗, 𝐃𝐢𝐚𝐥𝐌𝐲𝐂𝐚𝐥𝐥𝐬, and 𝐂𝐚𝐥𝐥𝐓𝐨𝐨𝐥𝐬 systems. • 𝐒𝐈𝐏 𝐓𝐫𝐮𝐧𝐤𝐢𝐧𝐠: Expert in 𝐒𝐈𝐏 𝐓𝐫𝐮𝐧𝐤𝐢𝐧𝐠 𝐬𝐞𝐭𝐮𝐩 𝐢𝐧 𝐓𝐰𝐢𝐥𝐢𝐨 𝐚𝐧𝐝 𝐓𝐞𝐥𝐧𝐲𝐱 for unified communication setups. • 𝐓𝐰𝐢𝐥𝐢𝐨 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Custom 𝐓𝐰𝐢𝐥𝐢𝐨 𝐓𝐞𝐥𝐞𝐩𝐡𝐨𝐧𝐲 integrations synced with databases like 𝐌𝐲𝐒𝐪𝐥, 𝐒𝐮𝐩𝐚𝐛𝐚𝐬𝐞 or 𝐏𝐨𝐬𝐭𝐠𝐫𝐞𝐒𝐐𝐋. • 𝐈𝐕𝐑 & 𝐒𝐌𝐒 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬: Building multi-business communication suites, automated call routing, and campaigns. • 𝟏𝟎𝐃𝐋𝐂 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞: Streamlining brand/campaign registrations to ensure 𝟏𝟎𝟎% 𝐒𝐌𝐒 𝐜𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞. 🛠️ 𝐌𝐘 𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐒𝐓𝐀𝐂𝐊 • 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: PHP, Laravel, Python, Node.js, MySql, Supabase, PostgreSQL • 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬: Stripe, PayPal • 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 & 𝐕𝐨𝐈𝐏: Twilio API, Telnyx, Dialfire, CallTools, 3CX PBX, SIP Trunking • 𝐂𝐑𝐌𝐬 & 𝐀𝐏𝐈𝐬: Zoho APIs, GoHighLevel (GHL) API, Pipedrive, Airtable • 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬: n8n, Zapier, Web Scraping, AI Automation 𝐖𝐡𝐲 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 𝐦𝐞? ✔️𝐕𝐞𝐫𝐬𝐚𝐭𝐢𝐥𝐞 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 – Experienced in both long-term EMR developments and complex API integrations. ✔️ 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐯𝐞 & 𝐑𝐞𝐥𝐢𝐚𝐛𝐥𝐞 – Active communication with average response time under 4 hours. ✔️ 𝐐𝐮𝐚𝐥𝐢𝐭𝐲-𝐅𝐨𝐜𝐮𝐬𝐞𝐝 – Clean, scalable, and maintainable code tailored to your exact needs. Let's bring your project to life! Click "𝐌𝐞𝐬𝐬𝐚𝐠𝐞" or "𝐈𝐧𝐯𝐢𝐭𝐞 𝐭𝐨 𝐉𝐨𝐛" to discuss your requirements.