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Sadique A.
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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.

🇮🇳Areekode, India$75/hr100% JSS4.92 (48)Since Oct 2014

Earnings and projects

MRR
$1.6k

Last 6 months ÷ 6

World#30,523 / 412k
🇮🇳Country#3,638 / 45.9k
Revenue, last 30 days
$845

Last 6 months: $9.4k

World#47,986 / 412k
🇮🇳Country#5,103 / 45.9k
Total earnings
$352k

Billed in all: $363k

World#5,713 / 412k
🇮🇳Country#863 / 45.9k
Per project
$4.6k

$4.7k in the last 6 months

World#37,462 / 412k
🇮🇳Country#4,169 / 45.9k
Projects, last 6 months
2
50% fixed50% hourly
World#88,918 / 412k
🇮🇳Country#10,198 / 45.9k
Projects in all
76

Across 82 contracts

73% fixed27% hourly
World#38,982 / 412k
🇮🇳Country#6,792 / 45.9k

Earnings, last 30 days

$363k+$845 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$360k$362k$364kOct 8Oct 23Nov 7

Skill rankings: Top 6% in FreePBX

Ranked by MRR among everyone on Upwork with the skill.

  1. #5Kamailio45 freelancers · 🇮🇳 #3Top 11%
  2. #7FreePBX120 freelancers · 🇮🇳 #1Top 6%
  3. #10FreeSWITCH85 freelancers · 🇮🇳 #4Top 12%
  4. #19VoIP Administration218 freelancers · 🇮🇳 #3Top 9%
  5. #19Asterisk211 freelancers · 🇮🇳 #4Top 9%
  6. #19Session Initiation Protocol106 freelancers · 🇮🇳 #4Top 18%
  7. #21VoIP Software176 freelancers · 🇮🇳 #5Top 12%
  8. #36VoIP352 freelancers · 🇮🇳 #6Top 10%