Sadique A.
Full Stack Developer, Cloud Telephony Expert
I'm a Full Stack Developer specializing in scalable web applications, cloud telephony systems, and AI-powered automation tools. I help startups and businesses streamline operations, elevate customer experiences, and bring innovative, future-ready products to life. 🔧 How I can help you: ✅ Full Stack Web Development (Node.js, React, Next.js, Express) ✅ Cloud Telephony Integration & Development (Freeswitch, Kamailio, Asterisk, Twilio, Plivo, WebRTC, SIP.js) ✅ AI Agent & Chatbot Development (OpenAI APIs, RAG pipelines, custom conversational workflows) ✅ Speech & NLP Solutions (Speech-to-text, text-to-speech, custom NLP models and pipelines) ✅ Scalable Backend Systems (API design, MongoDB, PostgreSQL, Cassandra, cloud deployment) 💡 Why clients love working with me: Fast, clear communication and consistent delivery Clean, scalable, and well-documented code Deep understanding of both technical and business goals Full project ownership — from idea to deployment Whether you're building from scratch or improving an existing product, I’m here to help. Available for both short-term projects and long-term partnerships. Let’s build something impactful.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $9.4k
Billed in all: $362,564$363k
$4.7k in the last 6 months
Across 82 contracts
Earnings, last 30 days
Skill rankings: Top 6% in FreePBX
Ranked by MRR among everyone on Upwork with the skill.
- #5Kamailio45 freelancers · 🇮🇳 #3Top 11%🇮🇳#3 of 13
- #7FreePBX120 freelancers · 🇮🇳 #1Top 6%🇮🇳#1 of 24
- #10FreeSWITCH85 freelancers · 🇮🇳 #4Top 12%🇮🇳#4 of 23
- #19VoIP Administration218 freelancers · 🇮🇳 #3Top 9%🇮🇳#3 of 20
- #19Asterisk211 freelancers · 🇮🇳 #4Top 9%🇮🇳#4 of 35
- #19Session Initiation Protocol106 freelancers · 🇮🇳 #4Top 18%🇮🇳#4 of 25
- #21VoIP Software176 freelancers · 🇮🇳 #5Top 12%🇮🇳#5 of 30
- #36VoIP352 freelancers · 🇮🇳 #6Top 10%🇮🇳#6 of 50