AI Agents and Voice Systems
OpenAI, Gemini, ElevenLabs, WebRTC voice capture, realtime avatar validation, tool workflows, and safe command-routing systems.
Styled Resume
Hamza Nasar Career Profile
Resume
Hamza Nasar
Full Stack AI & SaaS Engineer building AI agents, voice systems, realtime products, and backend-heavy SaaS platforms.
Full stack engineer with 3+ years of experience building AI agents, SaaS products, realtime systems, dashboards, APIs, automation workflows, and backend-heavy platforms. Strong hands-on work across Next.js, React, TypeScript, Python, FastAPI, NestJS, PostgreSQL, MongoDB Atlas, Prisma, TypeORM, Redis, OpenAI, Gemini, WebRTC, Stripe, authentication, deployment workflows, SEO, testing, and performance optimization.
3+ years
Experience
AI, SaaS, Realtime
Core focus
Python, NestJS, Data
Backend
Karachi
Location
Career Snapshot
Current positioning and delivery strengths.
Current focus
AI agents, voice workflows, SaaS platforms, realtime systems, dashboards, and backend architecture.
Preferred stack
Next.js, React, TypeScript, Python, FastAPI, NestJS, PostgreSQL, MongoDB, Prisma, TypeORM, Redis, and Docker.
Work style
Fast execution, business-driven decisions, clean architecture, and responsive UX.
Contact and Links
Everything needed to reach out quickly.
Focus Areas
What I bring to product teams
The resume is now rendered as a real web experience, so instead of a flat PDF preview the content is grouped into the themes that matter during hiring or client review.
SaaS and Platform Engineering
Next.js, React, TypeScript, Stripe, NextAuth, admin dashboards, analytics, SEO pages, subscriptions, and product-ready workflows.
Backend and Realtime Architecture
FastAPI, NestJS, Node.js, PostgreSQL, MongoDB Atlas, Prisma, TypeORM, SQLAlchemy, Redis, Socket.IO, WebSocket, and Docker.
Core Skills
Stack coverage across frontend, backend, data, and shipping
These are taken directly from the resume and reorganized into scannable capability groups.
Frontend and Product UI
React.jsNext.js 15 and 16TypeScriptReact 19Tailwind CSSShadcn UIMaterial UIFramer MotionTanStack QueryZustandReact Hook FormResponsive UISEO Metadata
Backend Engineering
PythonFastAPINestJSNode.jsExpress.jsREST APIsAPI ArchitectureDjango REST FrameworkJWTOAuthRole-Based Access ControlRate LimitingService Layers
Data and Persistence
MongoDBMongoDB AtlasMongoosePostgreSQLPrismaTypeORMSQLAlchemyAlembicSQLiteRedis
AI, Voice, and Realtime
OpenAI APIGemini AIGoogle GenAIElevenLabsLiveKitSocket.ioWebSocketWebRTCPCM Audio StreamingRealtime MessagingAI AgentsPrompt EngineeringTool Calling
SaaS and Payments
Stripe CheckoutStripe WebhooksNextAuthAdmin ConsolesAnalytics DashboardsFeatured ListingsSubmission FlowsSEO Landing PagesSaaS MVPsBilling Workflows
Delivery and Quality
GitGitHubDockerDocker ComposeVercelRailwayRenderPlaywrightVitestpytestPostmanCI/CD BasicsProduction Debugging
Experience
Professional experience
A cleaner timeline view than the original PDF, with role context and high-signal delivery outcomes.
2024 - Present
Full Stack AI & SaaS Engineer
Freelance and Client Projects - Karachi
Product delivery, architecture, and optimization
Built AI agents, voice workflows, realtime systems, SaaS dashboards, and backend-heavy platforms using Next.js, React, TypeScript, Python, FastAPI, NestJS, PostgreSQL, MongoDB, Redis, and OpenAI.
Implemented production patterns including admin consoles, role-based access control, Stripe payments, WebSocket and WebRTC flows, SEO pages, schema validation, database migrations, and deployment checks.
Delivered product systems across AI agents, realtime avatar workflows, SaaS directories, data platforms, and automation dashboards.
2024 - 2025
Full Stack Developer
Linkitsoft and Product Delivery - Karachi
Product delivery, architecture, and optimization
Developed and maintained client-facing web applications with React, Next.js, Node.js, MongoDB, authentication, REST APIs, and third-party integrations.
Created responsive dashboards and reusable UI systems with attention to performance, state management, form handling, and operational workflows.
Improved frontend and backend reliability through schema design, request validation, refactoring, debugging, and production deployment support.
2023 - 2024
Junior Full Stack Developer
Slash International and Remote - Karachi
Product delivery, architecture, and optimization
Built modern web app interfaces, REST API integrations, authentication flows, dashboard modules, and MongoDB-backed application features.
Translated product requirements into maintainable frontend and backend implementations using React, Next.js, Express, and Tailwind.
Strengthened fundamentals in deployment, debugging, responsive design, database modeling, and end-to-end product delivery.
Impact Work
Key project highlights
A short snapshot of the strongest AI, realtime, and SaaS systems from recent work.
Personal Voice Agent
Local AI assistant with voice commands, realtime dashboard updates, memory, and safe action approvals.
Next.jsPythonOpenAIWebRTCWebSocketSQLite
Implemented WebRTC voice capture, OpenAI command routing, and Python-backed local actions.
Built dashboard workflows for memory, files, automations, safety, and runtime visibility.
Kayanne Live Avatar
Realtime avatar validation platform with LiveKit video, microphone capture, backend audio bridge, and runtime metrics.
NestJSNext.jsLiveKitWebRTCWebSocketGoogle GenAITypeScript
Built a secure NestJS proxy, session manager, and WebSocket audio workflow.
Validated microphone, lipsync, streaming behavior, and operational readiness through a Next.js console.
Toolverse Atlas
AI tools SaaS directory with discovery, submissions, favorites, admin analytics, paid listings, and SEO pages.
Next.jsTypeScriptMongoDB AtlasNextAuthStripeRechartsZod
Implemented Stripe checkout, webhooks, payment records, and revenue dashboard workflows.
Built MongoDB Atlas workflows, SEO metadata, sitemap, robots, and structured data.
Education
Academic background
Formal education and supporting technical training.
Intermediate in Computer Science (ICS)
Board of Karachi - 2023
Additional training includes full stack web fundamentals, AI product engineering practice, backend architecture, and production-focused project work reflected in this portfolio.
Open for Work
Available for freelance, contract, and product roles
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