Hi, I'm Hamza NasarAI Agents, SaaS & Realtime Systems
I build AI agents, voice workflows, SaaS platforms, admin dashboards, and realtime systems with Next.js, Python, NestJS, OpenAI, WebRTC, PostgreSQL, and MongoDB. Focused on reliable product architecture, polished UX, and business workflows that can scale.
2 live demos Public source code Available for remote work
Proof before promises
A quick view of what you can verify before starting a conversation.
2 Live Products
Public demos and repositories
3+ Years
Full-stack product delivery
End-to-End Builds
Frontend, backend, AI, deployment
Remote Ready
Clear async collaboration
Building AI agents, SaaS platforms, and realtime product systems
I'm Hamza Nasar, a Full Stack AI & SaaS Engineer from Karachi, Pakistan. I design and engineer production-minded products across AI agents, voice systems, realtime workflows, SaaS dashboards, and data-heavy business platforms.
My recent work spans local personal voice agents, LiveKit and WebRTC avatar validation, AI tool directories, real-estate intelligence platforms, streaming products, and healthcare plus social systems. I blend polished frontend execution with backend architecture, automation, and practical deployment workflows.
Engineering Capabilities
A practical stack shaped by recent AI, SaaS, realtime, and backend-heavy product work.
Frontend
Backend
AI and Agents
Realtime
SaaS Product
Delivery
Selected work
Projects that solve real product problems
A focused set of AI, realtime, and platform builds — each one linked to the source and the live product where available.
ReplyPilot AI
A WhatsApp-style sales assistant for clothing stores with seller auth, catalog management, order capture, chat, and analytics.
Turn product questions into confident, trackable conversations.
Catalog-aware AI agent with seller operations and multi-channel foundations.
Kayanne Live Avatar
A production live-avatar system that connects microphone input, speech recognition, LLM responses, British voice output, and a LiveAvatar stream.
Make a live AI conversation feel natural while keeping provider credentials secure.
Next.js management UI, NestJS API proxy, session manager, and provider abstraction.
VEN
A vertical-drama streaming platform with category rails, trailer handling, episode playback, wallet credits, and Stripe-protected payments.
Ship a content-first viewing journey that stays coherent across discovery, playback, and monetisation.
Next.js frontend, NestJS API, PostgreSQL, Redis, BullMQ, and Stripe webhooks.
Personal Voice Agent
A local-first voice assistant that turns natural speech into practical commands, tool calls, and automations without losing control of the runtime.
Make voice interaction useful for real workflows, not just a conversational demo.
Command routing, speech input/output, local runtime handling, and extensible tool workflows.
My Journey
The path that led me here
Intermediate in Computer Science(ICS)
Board of Karachi • 2023Completed Intermediate in Computer Science, focusing on programming fundamentals, data structures, and introductory web development.
Full Stack AI & SaaS Engineer
Freelance and Contract • 2023 - PresentBuilding AI agents, SaaS platforms, realtime systems, dashboards, and backend-heavy products with Next.js, Python, NestJS, PostgreSQL, MongoDB, OpenAI, and WebRTC.
Full Stack Foundations
Online Bootcamp + Project Practice • 2024Built a strong foundation in React, Next.js, Node.js, MongoDB, Express, deployment, and production web fundamentals.
AI Product Engineering
Recent Projects • 2025 - PresentExpanding into local voice agents, realtime avatar systems, AI tools SaaS, real-estate intelligence, and streaming platform architecture.
Services
Practical product engineering for AI-first businesses, SaaS teams, and realtime workflows
AI Agents & Workflow Automation
Custom assistants, command routers, business automations, and AI workflows that connect directly to real tools and data.
- OpenAI and Gemini Workflows
- Voice Commands
- Tool Calling Patterns
- Business Process Automation
Realtime Voice & Avatar Systems
Realtime product experiences with WebRTC, LiveKit, WebSocket audio bridges, live chat, and streaming interfaces.
- WebRTC and LiveKit
- Socket.IO and WebSocket
- Audio Streaming
- Live Dashboards
SaaS MVP & Platform Engineering
Product-ready SaaS platforms with auth, dashboards, payments, analytics, admin workflows, and SEO foundations.
- Stripe Checkout and Webhooks
- NextAuth and OAuth
- Admin Consoles
- Analytics and Revenue Tracking
Backend & Data Platforms
APIs, databases, migrations, queues, and validation layers for data-heavy products and internal systems.
- FastAPI and NestJS
- PostgreSQL and MongoDB
- Prisma, TypeORM, SQLAlchemy
- Redis and BullMQ
Internal Tools & Dashboards
Operational software for teams: admin panels, inventory interfaces, moderation tools, reports, and workflow consoles.
- RBAC and Protected Routes
- Forms and Validation
- Charts and Reporting
- Testing with Playwright and Vitest
Deployment & Product Hardening
Production-focused delivery with Docker, environment setup, security headers, rate limits, and deployment checks.
- Docker Compose
- Vercel, Railway, Render
- Security Headers
- SEO and Performance Checks
Beyond the Code
A snapshot of my impact and activity
Engineering Momentum
Recent work spans AI agents, realtime systems, SaaS platforms, backend architecture, and production validation across several active codebases.
AI Product Focus
Building practical agent, avatar, assistant, and automation systems with real product workflows.
Frequently Asked Questions
Got questions? I've got answers. Everything you need to know about my services and expertise.
Let's Work Together
Get in touch and let's create something amazing
Have a project in mind or want to discuss an idea? Fill out the form or reach me directly:
Schedule a Call