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Hassan Raza K.
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Hassan Raza K.

Chrome Extension Developer & AI SaaS Builder

𝗬𝗼𝘂𝗿 𝗯𝗿𝗼𝘄𝘀𝗲𝗿 𝘀𝗵𝗼𝘂𝗹𝗱 𝘄𝗼𝗿𝗸 𝗳𝗼𝗿 𝘆𝗼𝘂 — 𝗻𝗼𝘁 𝘁𝗵𝗲 𝗼𝘁𝗵𝗲𝗿 𝘄𝗮𝘆 𝗮𝗿𝗼𝘂𝗻𝗱. I'm 𝗛𝗮𝘀𝘀𝗮𝗻 𝗥𝗮𝘇𝗮 𝗞𝗵𝗮𝗻, a Chrome Extension specialist and AI SaaS developer with 6+ years building browser tools, Google Workspace automations, and AI-powered web applications. I work with SaaS founders, ops teams, and agencies who want to automate repetitive workflows, build smart browser tools, or launch AI-integrated products — without stitching together five different no-code tools. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 💼 𝗖𝗔𝗦𝗘 𝗦𝗧𝗨𝗗𝗜𝗘𝗦 📌 𝗦𝗮𝗮𝗦 𝗖𝗵𝗿𝗼𝗺𝗲 𝗘𝘅𝘁𝗲𝗻𝘀𝗶𝗼𝗻 𝗳𝗼𝗿 𝗟𝗶𝗻𝗸𝗲𝗱𝗜𝗻 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 Built a Manifest v3 Chrome extension integrating with LinkedIn, Firebase, and a custom Node.js backend. The client went from 0 to 700+ paid users in 3 months. 📌 𝗔𝗜-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗚𝗼𝗼𝗴𝗹𝗲 𝗪𝗼𝗿𝗸𝘀𝗽𝗮𝗰𝗲 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 Developed an Apps Script + AI pipeline that auto-drafts and sends personalized Gmail campaigns from Google Sheets data. Used by an edtech company to engage 20,000+ leads — with zero manual effort. 📌 𝗖𝘂𝘀𝘁𝗼𝗺 𝗔𝗜 𝗦𝗮𝗮𝗦 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 Built a full-stack AI web app with usage-based billing, free/premium tiers, and a Cloudflare Workers + D1 backend — handling thousands of requests with sub-100ms response times. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛠️ 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 🔷 𝗖𝗵𝗿𝗼𝗺𝗲 𝗘𝘅𝘁𝗲𝗻𝘀𝗶𝗼𝗻𝘀 ✅ Manifest v3 extensions that integrate with any web platform ✅ CRM-connected browser tools (LinkedIn, Upwork, Salesforce, HubSpot) ✅ Web scraping & dynamic data extraction extensions ✅ SaaS Chrome extensions with auth, billing, and backend sync ✅ Real-time monitoring tools with role-based access control 🤖 𝗔𝗜 𝗦𝗮𝗮𝗦 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 ✅ AI-powered web apps with Claude, GPT-4, or Gemini integration ✅ Usage-based billing with free/premium tier logic ✅ AI workflow automation tools (prompt pipelines, document processing) ✅ Cloudflare Workers + D1 backends for fast, scalable AI apps ✅ AI Chrome extensions with on-page intelligence ⚙️ 𝗚𝗼𝗼𝗴𝗹𝗲 𝗪𝗼𝗿𝗸𝘀𝗽𝗮𝗰𝗲 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 ✅ Google Apps Script for Sheets, Gmail, Calendar, Drive & Forms ✅ Custom Workspace add-ons and sidebar tools ✅ Automated reporting, scheduling, and data sync pipelines ✅ Google OAuth integration & API development ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 👤 𝗪𝗛𝗢 𝗜 𝗪𝗢𝗥𝗞 𝗕𝗘𝗦𝗧 𝗪𝗜𝗧𝗛 I'm the right fit if you're a SaaS founder building a browser-based product, an ops team drowning in manual Google Workspace tasks, or a startup that needs an AI-powered tool built fast and built right. I don't just write code — I think through the product with you. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📩 Send me a message describing your workflow or product idea. I'll reply within 24 hours with a clear plan — no fluff, no overselling.

🇵🇰Bahawalpur, Pakistan$50/hr100% JSS4.81 (124)Since Feb 2021
GlobeUpwork

Earnings and projects

MRR
$4.1k

Last 6 months ÷ 6

World#7,774 / 412k
🇵🇰Country#791 / 52.9k
Revenue, last 30 days
$3.4k

Last 6 months: $24k

World#10,402 / 412k
🇵🇰Country#1,145 / 52.9k
Total earnings
$229k

Billed in all: $239k

World#12,335 / 412k
🇵🇰Country#853 / 52.9k
Per project
$1.2k

$8.2k in the last 6 months

World#110,121 / 412k
🇵🇰Country#9,560 / 52.9k
Projects, last 6 months
3
67% fixed33% hourly
World#66,479 / 412k
🇵🇰Country#13,400 / 52.9k
Projects in all
190

Across 212 contracts

62% fixed38% hourly
World#10,847 / 412k
🇵🇰Country#1,510 / 52.9k

Earnings, last 30 days

$239k+$3.4k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$234k$236k$238k$240kOct 8Oct 23Nov 7

Skill rankings: Top 1% in Google Sheets

Ranked by MRR among everyone on Upwork with the skill.

  1. #4Firefox Plugin Development39 freelancers · 🇵🇰 #1Top 10%
  2. #10Browser Extension203 freelancers · 🇵🇰 #2Top 5%
  3. #19Browser Automation444 freelancers · 🇵🇰 #4Top 4%
  4. #27Google Chrome Extension660 freelancers · 🇵🇰 #3Top 4%
  5. #31Cryptocurrency1,788 freelancers · 🇵🇰 #3Top 2%
  6. #51Google Apps Script1,318 freelancers · 🇵🇰 #5Top 4%
  7. #53Scripting2,145 freelancers · 🇵🇰 #7Top 2%
  8. #99Google Sheets9,300 freelancers · 🇵🇰 #3Top 1%