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MD Tamjid M.
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MD Tamjid M.

Senior Full-Stack Developer | Next.js | Supabase | Sanity CMS | AI

🥇 𝐓𝐎𝐏 𝐑𝐀𝐓𝐄𝐃 • ⭐⭐⭐⭐⭐ 𝐂𝐋𝐈𝐄𝐍𝐓 𝐑𝐀𝐓𝐈𝐍𝐆𝐒 • ✅ 𝟏𝟎𝟎% 𝐉𝐎𝐁 𝐒𝐔𝐂𝐂𝐄𝐒𝐒 • 🚀 𝟒+ 𝐘𝐄𝐀𝐑𝐒 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄 I’m 𝐓𝐀𝐌𝐉𝐈𝐃 𝐌𝐎𝐒𝐓𝐀𝐅𝐀, a Full-Stack Developer specializing in 𝐍𝐄𝐗𝐓.𝐉𝐒, 𝐒𝐔𝐏𝐀𝐁𝐀𝐒𝐄, 𝐒𝐀𝐍𝐈𝐓𝐘 𝐂𝐌𝐒 and 𝐀𝐈 𝐈𝐍𝐓𝐄𝐆𝐑𝐀𝐓𝐈𝐎𝐍. I help founders and growing teams build, improve and scale production web applications — from SaaS platforms and AI-powered products to high-performance websites backed by flexible headless CMS architecture. Whether you have an 𝐀𝐈-𝐁𝐔𝐈𝐋𝐓 𝐌𝐕𝐏 that needs production engineering, a 𝐒𝐀𝐀𝐒 product that needs new features, or a 𝐍𝐄𝐗𝐓.𝐉𝐒 + 𝐒𝐀𝐍𝐈𝐓𝐘 website that needs a scalable content system, I can take ownership of the technical work from architecture through deployment. I work directly with you — 𝐧𝐨 𝐚𝐠𝐞𝐧𝐜𝐲, 𝐧𝐨 𝐡𝐚𝐧𝐝𝐨𝐟𝐟𝐬. You get one developer who understands the product, communicates clearly, writes maintainable code and stays involved through delivery. ━━━━━━━━━━━━━━━━━━━━ ⚡ 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐇𝐄𝐋𝐏 𝐘𝐎𝐔 𝐖𝐈𝐓𝐇 🧩 𝐍𝐄𝐗𝐓.𝐉𝐒 & 𝐅𝐔𝐋𝐋-𝐒𝐓𝐀𝐂𝐊 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 ➤ Next.js App Router & React Development ➤ TypeScript & Tailwind CSS ➤ SaaS Products & Custom Web Applications ➤ Admin Dashboards & Internal Tools ➤ REST APIs, Webhooks & Third-Party Integrations ➤ Performance Optimization & Technical SEO 📝 𝐒𝐀𝐍𝐈𝐓𝐘 & 𝐇𝐄𝐀𝐃𝐋𝐄𝐒𝐒 𝐂𝐌𝐒 ➤ Sanity Studio & Custom Schema Architecture ➤ GROQ, TypeGen & Sanity Live Content API ➤ Visual Editing & Custom Page Builders ➤ Reusable Content Blocks & Flexible Page Architecture ➤ Multilingual / Field-Level Localization ➤ Draft, Preview & Editorial Workflows ➤ Next.js + Sanity Integration ➤ Structured Data, hreflang & Localized SEO 🗄️ 𝐒𝐔𝐏𝐀𝐁𝐀𝐒𝐄 & 𝐒𝐀𝐀𝐒 𝐁𝐀𝐂𝐊𝐄𝐍𝐃𝐒 ➤ PostgreSQL & Database Architecture ➤ Authentication & Role-Based Access ➤ Row-Level Security (RLS) ➤ Multi-Tenant SaaS Architecture ➤ Realtime Features & Storage ➤ Secure Server-Side Workflows 🤖 𝐀𝐈 & 𝐀𝐔𝐓𝐎𝐌𝐀𝐓𝐈𝐎𝐍 ➤ OpenAI & Claude API Integration ➤ AI Agents & Function Calling ➤ RAG Assistants Over Your Documents & Data ➤ pgvector & Semantic Search ➤ Structured AI Workflows ➤ Guardrails & AI Cost Monitoring 🛠️ 𝐀𝐈-𝐁𝐔𝐈𝐋𝐓 𝐌𝐕𝐏 → 𝐏𝐑𝐎𝐃𝐔𝐂𝐓𝐈𝐎𝐍 Built your first version with Lovable, Bolt, Replit, v0 or Claude? I can help turn that prototype into maintainable production software by improving: ➤ Authentication & RLS ➤ Database Architecture ➤ Security & Tenant Isolation ➤ Error Handling & Testing ➤ Performance & Scalability ➤ CI/CD & Production Deployment 💳 𝐏𝐀𝐘𝐌𝐄𝐍𝐓𝐒 & 𝐈𝐍𝐓𝐄𝐆𝐑𝐀𝐓𝐈𝐎𝐍𝐒 ➤ Stripe Checkout & Subscriptions ➤ Stripe Webhooks ➤ Booking & Payment Workflows ➤ CRM / API Integrations ➤ Background Jobs & Automated Workflows ━━━━━━━━━━━━━━━━━━━━ 🏆 𝐒𝐄𝐋𝐄𝐂𝐓𝐄𝐃 𝐏𝐑𝐎𝐃𝐔𝐂𝐓𝐈𝐎𝐍 𝐖𝐎𝐑𝐊 🎓 𝐂𝐋𝐈𝐍𝐈𝐂𝐀𝐋 𝐄𝐃𝐔𝐂𝐀𝐓𝐈𝐎𝐍 𝐒𝐀𝐀𝐒 Multi-tenant platform with Supabase RLS across ~110 migrations, Realtime features and PDF certificates with public verification. 🏠 𝐑𝐄𝐀𝐋-𝐄𝐒𝐓𝐀𝐓𝐄 𝐌𝐄𝐃𝐈𝐀 𝐏𝐋𝐀𝐓𝐅𝐎𝐑𝐌 Large production platform with a Sanity-powered visual page builder, reusable content architecture, per-city personalization, Stripe booking and abandoned-lead recovery. 🌍 𝐁𝐈𝐋𝐈𝐍𝐆𝐔𝐀𝐋 𝐍𝐄𝐗𝐓.𝐉𝐒 + 𝐒𝐀𝐍𝐈𝐓𝐘 𝐖𝐄𝐁𝐒𝐈𝐓𝐄 Next.js 16 with Sanity Live Content, field-level localized content, TypeGen and Cache Components — allowing CMS updates to appear in seconds while pages remain cached and SEO-friendly. 🚗 𝐂𝐀𝐑-𝐑𝐄𝐍𝐓𝐀𝐋 𝐌𝐀𝐑𝐊𝐄𝐓𝐏𝐋𝐀𝐂𝐄 Migrated from MongoDB to Supabase PostgreSQL with RLS built from scratch, Stripe integration, phone OTP and staff administration with an audit trail. ━━━━━━━━━━━━━━━━━━━━ 🔄 𝐇𝐎𝐖 𝐈 𝐖𝐎𝐑𝐊 ➤ Understand your product, users and immediate priority ➤ Review the existing architecture or requirements ➤ Define a clear scope before development ➤ Build in small, reviewable increments ➤ Push regularly to your repository ➤ Test critical workflows before delivery ➤ Deploy and document the final implementation ➤ Keep your accounts, infrastructure and source code under your ownership ━━━━━━━━━━━━━━━━━━━━ 🎯 𝐀 𝐆𝐎𝐎𝐃 𝐅𝐈𝐓 𝐈𝐅... You’re a founder, SaaS team, agency or growing business looking for someone who can take technical ownership — not just complete isolated tickets. You may already have a product that needs improvement, an AI-built prototype that needs production engineering, or a content-heavy website that needs a proper 𝐍𝐄𝐗𝐓.𝐉𝐒 + 𝐒𝐀𝐍𝐈𝐓𝐘 architecture. 𝐒𝐭𝐚𝐫𝐭 𝐬𝐦𝐚𝐥𝐥. Send me your current website, application, Figma design or requirements. We can begin with a defined feature, technical review, Sanity implementation or production-readiness task before committing to something larger. 📩 𝐂𝐥𝐢𝐜𝐤 “𝐂𝐎𝐍𝐓𝐀𝐂𝐓” 𝐚𝐧𝐝 𝐭𝐞𝐥𝐥 𝐦𝐞 𝐰𝐡𝐚𝐭 𝐲𝐨𝐮’𝐫𝐞 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠.

🇧🇩Gazipur City Corporation, Bangladesh$45/hr100% JSS1.19 (11)Since Apr 2020

Earnings and projects

MRR
$417

Last 6 months ÷ 6

World#85,180 / 412k
🇧🇩Country#2,184 / 15.0k
Revenue, last 30 days
$0

Last 6 months: $2.5k

Total earnings
$44k

Billed in all: $46k

World#84,894 / 412k
🇧🇩Country#2,392 / 15.0k
Per project
$2.9k

$2.5k in the last 6 months

World#57,170 / 412k
🇧🇩Country#652 / 15.0k
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇧🇩Country#5,879 / 15.0k
Projects in all
15
27% fixed73% hourly
World#161,377 / 412k
🇧🇩Country#9,744 / 15.0k

Earnings, last 30 days

$45.9kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$45.0k$45.5k$46.0k$46.5kOct 8Oct 23Nov 7

Skill rankings: Top 17% in MongoDB

Ranked by MRR among everyone on Upwork with the skill.

  1. #50Strapi205 freelancers · 🇧🇩 #2Top 24%
  2. #175Vercel586 freelancers · 🇧🇩 #8Top 30%
  3. #708CMS Development2,787 freelancers · 🇧🇩 #20Top 25%
  4. #783AI Implementation2,382 freelancers · 🇧🇩 #14Top 33%
  5. #962Stripe3,151 freelancers · 🇧🇩 #18Top 31%
  6. #1,339Supabase4,116 freelancers · 🇧🇩 #27Top 33%
  7. #1,561AI App Development4,708 freelancers · 🇧🇩 #26Top 33%
  8. #1,623SaaS Development5,201 freelancers · 🇧🇩 #29Top 31%