Builder from Rangpur, Bangladesh. I architect AI agents, SaaS platforms, and automation systems that make businesses faster. Founder of VirtualCrew Delta — custom AI agents, built from scratch, delivered in 7 days.
I'm Dewan Efaj Tahamid Rifat — an AI architect and full-stack developer from Rangpur, Bangladesh. I've been shipping production-quality projects since 2023 across web, AI, and automation.
I'm the Founder & CEO of VirtualCrew Delta — an AI agent agency I built from the ground up. Every agent is custom-trained on your business data. Not templates. Real intelligence.
I also partner with early-stage startups: I build your entire tech stack from scratch in exchange for 10% equity. No invoice, no upfront cost — I invest my skills, you bring the vision.
I founded and lead VirtualCrew Delta. Every agent is built from scratch on your data, your tone, your products — never a template. Real intelligence, delivered in 7 days, paid after delivery.
Your agent is built 100% from scratch on your data, your tone, and your products. If you're not satisfied, you don't pay.
I founded and built this complete AI agency from scratch. Five fully custom AI agents for businesses worldwide — customer support, competitor intel, AI employees, reputation management, and decision-making. Pay after delivery, 7-day build time.
virtual-crew-delta.vercel.appBusinesses train and deploy custom AI chatbots on their own data — no coding required. Live on WhatsApp and web. Built for a South African e-commerce client.
Request accessMulti-admin support ticket platform for lunexgaming.vip. Role-based access control, superadmin flow, real-time ticket management.
Private client projectSaaS AI chat application with crypto payment gating via Paymento and Claude as the backend model. Full subscription tier system.
Private projectProduction Telegram bot with Groq/LLaMA, human-agent personas, bilingual EN/Filipino support, promo blasting, and a full admin panel.
Private client projectFrom FAQs and bookings to complaints — every conversation handled instantly, 24/7, across all channels. Trained on your business data.
Responds in under a second, any time, any channel.
Website, WhatsApp, and Telegram — simultaneously.
Trained on your data, your tone, your products. No templates.
Handles the full support workflow end-to-end, automatically.
"Rifat built our automation system in just five days. Saved us hours every week. Highly responsive and incredibly skilled. I'll be coming back for every future project."
"One of the fastest developers I've worked with. He understood the requirements immediately and delivered far beyond what we expected. A true professional."
"Excellent AI integration work. He fine-tuned a model specifically for our niche and it worked exactly as needed. The agent he built handles the majority of our support tickets."
No budget? I'll build your entire MVP for 10% equity. Zero upfront cost. I invest my skills, you bring the vision. Available for the right idea.
Talk equity →Whether it's a freelance project, an AI agent, or an equity deal — I'm ready to build. WhatsApp is the fastest way to reach me.
5 custom AI agents for businesses. If you need an AI agent, this is where to go. Every agent built from scratch. Pay after delivery, always.
virtual-crew-delta.vercel.app →