Hire the Best FullContact Specialists

I specialize in VoIP solutions with a focus on RingCentral (EX & CX) and Zoom (Phone & CC) project implementation and ongoing support. As a subject matter expert in the field, I work with businesses of all sizes to streamline communication systems, resolve complex technical challenges, and deliver seamless transitions to cloud-based telephony. Here's what you can expect when working with me: Deep Roots in VoIP: I'm not just certified; I'm passionate about what I do. With experience in RingCentral, Avaya, Zoom and Vonage, I'm well-versed in the intricacies of these platforms both in its UCaaS and CCaaS versions. Your Time Matters: I understand that every second counts in your business. That's why you can rely on me for prompt responses and effective solutions. Who I Serve: From small startups to large enterprises, I've had the privilege of assisting businesses of all sizes. My expertise spans various industries, including law firms, universities, fitness, and finance, to name a few. Here is a list of the most common tasks I perform within a VoIP platform: Call queues / Auto Attendant - IVR Call Forwarding / Call Routing Voicemail Setup / Custom Answering Rules Porting / User setup / Limited extensions SMS Automation** (10DLC) Multi Site Call logging expert / Audit trail Announcement / Audio greetings - Voice over Desk Phone Provisioning I'm here, ready to be your partner in enhancing your communication systems. Reach out to me here on Upwork and let's start a conversation, looking forward to understanding your unique needs and finding the perfect solution for you!

𝐈 𝐝𝐨𝐧'𝐭 𝐣𝐮𝐬𝐭 𝐜𝐨𝐝𝐞. 𝐈 𝐮𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝 𝐲𝐨𝐮𝐫 𝐛𝐮𝐬𝐢𝐧𝐞𝐬𝐬, 𝐜𝐡𝐚𝐥𝐥𝐞𝐧𝐠𝐞 𝐲𝐨𝐮𝐫 𝐚𝐬𝐬𝐮𝐦𝐩𝐭𝐢𝐨𝐧𝐬, 𝐚𝐧𝐝 𝐨𝐰𝐧 𝐭𝐡𝐞 𝐨𝐮𝐭𝐩𝐮𝐭 I help startups and growing businesses build scalable digital products, especially video SaaS platforms, Chrome Extensions, and real-time systems. I take complete ownership from architecture to delivery, building production-grade systems that scale reliably. I am a results-driven 𝐀𝐈 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 10+ years of experience building Web Applications, Enterprise Level Platforms, Video Streaming Systems, and Chrome Extensions with a strong focus on performance, scalability, and execution speed. I leverage AI-powered development tools such as 𝐂𝐥𝐚𝐮𝐝𝐞, 𝐆𝐢𝐭𝐇𝐮𝐛 𝐂𝐨𝐩𝐢𝐥𝐨𝐭, 𝐂𝐮𝐫𝐬𝐨𝐫, 𝐑𝐞𝐩𝐥𝐢𝐭, 𝐚𝐧𝐝 𝐕𝐞𝐫𝐜𝐞𝐥𝐯0 to accelerate development, improve code quality, and build scalable systems faster without compromising architecture or performance. 𝐖𝐡𝐚𝐭 𝐈 𝐃𝐨 𝐁𝐞𝐬𝐭: 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐬: I build fast, responsive interfaces using 𝐑𝐞𝐚𝐜𝐭.𝐣𝐬, 𝐍𝐞𝐱𝐭.𝐣𝐬, and 𝐕𝐮𝐞.𝐣𝐬 with modern state management like Jotai for clean UI architecture. 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 & 𝐀𝐏𝐈𝐬: I have strong experience in building scalable 𝐀𝐏𝐈𝐬 using 𝐍𝐨𝐝𝐞.𝐣𝐬 and 𝐄𝐱𝐩𝐫𝐞𝐬𝐬.𝐣𝐬, including Stripe integrations and third-party services. 𝐂𝐡𝐫𝐨𝐦𝐞 𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧𝐬: I build advanced Chrome Extensions (𝐌𝐚𝐧𝐢𝐟𝐞𝐬𝐭 𝐕3) with deep 𝐃𝐎𝐌 manipulation, background scripts, and 𝐀𝐏𝐈 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 for SaaS tools and browser-based applications. 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 & 𝐒𝐜𝐚𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲: I design optimised systems using 𝐏𝐨𝐬𝐭𝐠𝐫𝐞𝐒𝐐𝐋, 𝐌𝐨𝐧𝐠𝐨𝐃𝐁, 𝐌𝐲𝐒𝐐𝐋, 𝐏𝐫𝐢𝐬𝐦𝐚 𝐎𝐑𝐌, 𝐒𝐮𝐩𝐚𝐛𝐚𝐬𝐞 and 𝐃𝐫𝐢𝐳𝐳𝐥𝐞 𝐎𝐑𝐌 with performance-focused architecture. 𝐌𝐞𝐝𝐢𝐚 & 𝐕𝐢𝐝𝐞𝐨 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: I use 𝐅𝐅𝐦𝐩𝐞𝐠, 𝐑𝐞𝐦𝐨𝐭𝐢𝐨𝐧, and 𝐖𝐞𝐛𝐑𝐓𝐂 for video processing, encoding, real-time communication, streaming platforms, and advanced video editing systems, including screen recording and AI-powered video tools. 𝐒𝐭𝐫𝐞𝐚𝐦𝐢𝐧𝐠 & 𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬: I have experience with 𝐂𝐥𝐨𝐮𝐝𝐟𝐥𝐚𝐫𝐞 𝐒𝐭𝐫𝐞𝐚𝐦, 𝐌𝐮𝐱, 𝐀𝐖𝐒 𝐌𝐞𝐝𝐢𝐚 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬, 𝐋𝐢𝐯𝐞𝐊𝐢𝐭, 𝐉𝐚𝐧𝐮𝐬, 𝐀𝐠𝐨𝐫𝐚, 𝐏𝐥𝐢𝐯𝐨, and 𝗧𝘄𝗶𝗹𝗶𝗼 for scalable live streaming and communication systems. 𝐀𝐏𝐈𝐬 & 𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐒𝐲𝐬𝐭𝐞𝐦𝐬: I build 𝐑𝐄𝐒𝐓 𝐀𝐏𝐈𝐬 and 𝐖𝐞𝐛𝐒𝐨𝐜𝐤𝐞𝐭 𝐛𝐚𝐬𝐞𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 for real-time data flow, media control, and interactive applications. 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞: 𝐕𝐏𝐒 | 𝐕𝐞𝐫𝐜𝐞𝐥 | 𝐀𝐖𝐒 (SST) with CI/CD pipelines for scalable production deployments. 𝐖𝐡𝐲 𝐇𝐢𝐫𝐞 𝐌𝐞 I don’t just code (𝑰 𝒕𝒖𝒓𝒏 𝒚𝒐𝒖𝒓 𝒊𝒅𝒆𝒂𝒔 𝒊𝒏𝒕𝒐 𝒔𝒄𝒂𝒍𝒂𝒃𝒍𝒆 𝒔𝒚𝒔𝒕𝒆𝒎𝒔 𝒕𝒉𝒂𝒕 𝒅𝒆𝒍𝒊𝒗𝒆𝒓 𝒓𝒆𝒂𝒍 𝒃𝒖𝒔𝒊𝒏𝒆𝒔𝒔 𝒗𝒂𝒍𝒖𝒆.) I have built scalable systems around real business needs I understand your vision and translate it into working, scalable products I have built real-time applications and streaming architectures I use AI-augmented development workflows to speed up delivery I focus on production-grade, scalable, and maintainable engineering I communicate clearly, think proactively, and take full ownership of delivery 𝐌𝐞𝐬𝐬𝐚𝐠𝐞 𝐦𝐞 𝐭𝐨𝐝𝐚𝐲 𝐚𝐧𝐝 𝐥𝐞𝐭’𝐬 𝐛𝐮𝐢𝐥𝐝 𝐩𝐨𝐰𝐞𝐫𝐟𝐮𝐥, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐝𝐢𝐠𝐢𝐭𝐚𝐥 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 React | Next.js | Vue.js | Node.js | Express.js | TypeScript | JavaScript | Stripe | WebRTC | FFmpeg | Remotion | OpenCV | GStreamer | REST APIs | WebSockets | PostgreSQL | MongoDB | MySQL | Prisma ORM | Drizzle ORM | Redis | Jotai | LiveKit | Janus | Agora | Plivo | Twilio | Cloudflare Stream | Mux | AWS Media Services | Vercel | AWS (SST) | VPS | Chrome Extensions (Manifest V3) | DOM Manipulation | AI Tools (Claude, Cursor, Copilot, Replit, Vercel v0)

🔝 𝟏4+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲. 𝐊𝐞𝐲 𝐅𝐚𝐜𝐭𝐬: 🏆 Upwork Top Rated 🚀 17+ Upwork Projects Accomplished. 🕰 200+ Total Working Hours ⭐ 5-star reviews from customers 🎯 End to end support My name is Chetan, and I am a full-stack web developer from Rajkot, India, with 14+ years of experience across backend and frontend development. I specialize in payment gateway integrations, secure API development, automation workflows, and building scalable, high-performance web applications. Specialization: Payment Gateway & API Integration Expert: ✅ Stripe (Certified) — Terminal, Identity, Connect, Subscriptions, Billing, Webhooks, SCA ✅ PayPal, Authorize.net, NMI, Braintree, Cybersource, Skrill, Square, Moneris, Airwallex, Eway, Razorpay, PayU, Paytm, ICICI Bank, Adyen, 2Checkout ✅ Advanced cloaking payment gateways & custom payment workflows AI + Automation Expertise: ✅ Chat Air.AI ↔ GoHighLevel integrations ✅ Live call transfer & call recording automation ✅ Lead syncing between GHL and Air.AI ✅ Zapier workflows, event automation, and pipeline setup Technical Skillset: Backend: PHP, Custom PHP, Laravel, Node.js, Python Mobile: React Native, Flutter, Android, iOs Frontend: HTML5, CSS3, JavaScript, jQuery, React.js Frameworks & Tools: Laravel, WordPress, Bootstrap, Electron, Shopify Databases: MySQL, MariaDB, PostgreSQL, MongoDB, Redis Other Expertise: REST APIs, server/hosting management, AWS, performance optimization, CI/CD pipelines Why Clients Prefer Working With Me: ✅ Strong communication and fast delivery ✅ Specialist in troubleshooting complex payment issues ✅ 14+ years of professional, real-world development experience ✅ Clean, maintainable, and scalable code ✅ Quick learner with the ability to master new technologies when needed I am available to start immediately and would be happy to discuss your project in detail. Looking forward to the opportunity to work with you.

Please read below for a full list of my proficiencies, but for your quick reference as to what I am a master at: * payment gateway solutions (Stripe Certified Developer, PayPal, Authorize.net, Skrill, Braintree, Square, Adyen, cybersource,NMI,2 Checkout, stripe terminal,stripe identity verification, Moneris ,Airwallex,eway, Razorpay, Payu, Paytm, Icici bank, Master CardStripe, cloaking payment gateway expert, etc). * Chat Air.AI with GHL , live trasnfer, call recording , zapier setup with chat air ai, Update GHL lead with Chat Air.AI. * I will solve whatever your payment challenge is or solution that you are looking for. * Generally, I am quite clever with Rest APIs * I have now built several fundraising websites from the ground up that have exceeded my clients expectations. I obviously also maintain them as necessary (which isn’t much if I built them). 
 I'm a Software enthusiast with over 14 years of development experience. I am an expert in Javascript (Node.js, React.js, Vue.js & Angular.js) and all things PHP (Laravel, Magneto, Wordpress, Drupal, Shopify, YII, CAKE) and their complimentary mobile applications (Native Android, IOS, Flutter and React Native to develop applications). I am also experienced with Python, if that is your preference. Along my journey creating web applications, websites, and mobile applications I have contributed to several open-source libraries along the way. I have a strong base in software development with an awesome educational record in my curricula. Over the years, regardless of the technical challenge, I solve the issue with great precision and accuracy. Whether working autonomously or with a team I always exceed best practices, stringently employing version control systems (BitBucket, GIT, Deployment Pipes, Jenkins, etc..), and excel within Linux, AWS, CDNs, S3, Amplify , RDS, etc… I'm addicted to clean workflow using testing frameworks like Karma, Mocha, and Tape. I'm also a part of a team creating a cross-platform desktop application in Electron.js. I have sharp skills in database systems including MySQL, NoSQL databases, and Graph databases like OrientDB and Neo4j. I am Swiftlane api Integrator partner I write impeccable and maintainable code, building a reusable foundation, while also keeping my clients updated about emerging technologies. If the project involves a new technology, I easily and quickly become proficient in the new technologies without any complications, with hundreds of successfully completed projects. 
I look forward to working with you, Arun 

For fundraising website references, please find: 
 Our Fund ugive2 – Simple-Fast-Fundraising Colour Blast – Fundraising Made Easy

Helped businesses deploy Microsoft Teams Phone, Genesys Cloud CX, SIP Trunks, and AudioCodes SBC solutions, reducing telephony issues and improving call reliability for contact centers and enterprise environments. Specialized in Microsoft Teams Phone, Genesys Cloud CX, SIP Trunking, and AudioCodes SBC with experience delivering cloud voice and contact center solutions for SMB and enterprise customers. 🔹 Microsoft Teams & Voice Solutions ✔️ Microsoft Teams Direct Routing ✔️ Operator Connect & Calling Plans ✔️ Auto Attendants & Call Queues ✔️ PSTN Integration & SBC Configuration ✔️ Multi-provider SIP failover routing 🔹 VoIP & Contact Center Expertise ✔️ SIP, E1, PRI integrations ✔️ AudioCodes SBC configuration & troubleshooting ✔️ Genesys Cloud CX (BYOCC, SIP Trunks, Routing) ✔️ Call recording & voice security ✔️ VoIP troubleshooting (RTP, TLS, SRTP, QoS) 🔹 Cloud & Infrastructure ✔️ AWS & Azure deployments ✔️ Hybrid cloud architecture ✔️ VPNs, Firewalls, Load Balancers ✔️ DNS, SPF, DKIM, DMARC & Email deliverability ✔️ High-availability & secure network design

Hello, I'm Mustafa Ghouri a Full-Stack Developer and MERN Stack specialist with 6+ years of professional experience building scalable, secure, and high-performance web and mobile applications. I specialize in SaaS platforms, dashboards, REST APIs, and end-to-end custom development designed to support real business growth. I focus on building reliable, maintainable systems not just writing code. 💼 What I Do: I help startups, SMEs, and enterprises turn ideas into production-ready digital products. As a full-stack web developer, I handle everything from frontend UI to backend architecture, database design, and third-party integrations. Whether you need a MERN stack application, a Python-based automation system, or a complex enterprise platform I deliver clean, scalable code from day one. 🌍 Industry Experience: I've successfully delivered full-stack solutions across multiple industries: Marketplaces & E-commerce Travel & Hospitality Custom ERP Systems Healthcare & Mental Health Platforms CRM & Sales Automation Tools Learning Management Systems (LMS) Fitness & Sports Platforms Legal Tech & AI-Assisted Systems Automotive Platforms (Rental, Carpooling, Sales) Finance & FinTech Human Resource Management (HRM) Digital Marketing & Third-Party API Integrations 🔧 Technology Stack: Full-Stack & MERN Development: MongoDB, Express.js, React.js, Node.js (MERN Stack) Next.js, Vue.js, React Native HTML5, CSS3, Tailwind CSS, Bootstrap Progressive Web Apps (PWA) Backend & APIs: PHP (Laravel, Custom PHP) Python (Django, FastAPI) Node.js (Express, NestJS, AdonisJS) Golang RESTful APIs, GraphQL, Firebase, Supabase Databases & Cloud: MySQL, PostgreSQL, MongoDB, DynamoDB AWS, DigitalOcean, Firebase, Elasticsearch API Integrations: Stripe, PayPal, Twilio, DocuSign, Xero Google Maps, Meta APIs (Facebook, Instagram), TikTok DevOps & Infrastructure: Linux (Ubuntu, CentOS), LAMP Stack CI/CD Pipelines Cloud Hosting & Application Scaling 👥 Team Collaboration: I work with a dedicated team, including: Senior Full-Stack Developers English-Fluent Project Managers QA Engineers for full-cycle testing UI/UX Designers & Solution Architects This ensures clear communication, structured delivery, and consistent quality. 🚀 Services: Full-Stack Web Application Development (MERN, Laravel, Django) SaaS & Subscription-Based Platforms Marketplace, CRM & Social Platforms Healthcare, Legal & ERP Systems Mobile App Development (React Native) REST & GraphQL API Development AI Automation & LLM Integrations (ChatGPT, Claude) Database Design & System Architecture Full-Cycle Delivery (Planning → Launch) 🕒 Why Clients Work With Me: Responsive and reliable communication Transparent and structured development process Strong problem-solving and business understanding Scalable full-stack solutions built for long-term use Direct developer access with project management support 💬 Let's Work Together: If you're looking for an experienced full-stack developer or MERN stack expert to build or scale your product, I'd love to discuss your project. Feel free to message me to get started.