Software Architect · Full-Stack Web Developer
I design and build AI-powered products, end to end.
Voice agents, task automation and modern full-stack systems, architected, built and shipped by one senior engineer. 5+ years turning ideas into reliable, scalable software.
Available for freelance, 2026
- Role
- Software Architect · Full-Stack
- Focus
- AI · Voice · Automation
- Stack
- Next.js · Supabase · Postgres
- Based
- Pakistan, Remote worldwide
What I do
Services for founders & teams
Hire me to design the architecture and build the whole thing, from AI features to full products. Click any service for details.
AI Chatbot Development
Custom AI chatbots that actually know your business, not generic widgets.
Learn more→Voice AIVoice AI Assistant Development
Real-time voice agents that talk to your customers and get things done.
Learn more→Web DevelopmentFull-Stack Web Development
I design the architecture and build your web product end to end.
Learn more→AutomationAutomation & Workflow Engineering
Automate the repetitive work so your team can focus on real work.
Learn more→Web3Web3 & Smart Contract Development
Production smart contracts and dApps, built with care.
Learn more→Mobile AppsCross-Platform Mobile App Development
One codebase, iOS and Android, built and shipped to the stores.
Learn more→Selected work
Products I've designed & built
Real projects across full-stack SaaS, Web3, mobile and backend. Each one shipped end to end.
Car MOT & Garage Management Platform
A production-grade SaaS that lets a car workshop manage priced services and a booking calendar while customers self-book slots and pay online.
Multi-Chain Prediction Market
A decentralized prediction/parlay platform deployed across Sanko, Base, Ethereum and Sonic, with live odds over websockets and on-chain settlement.
NFT Marketplace & Trading dApp
A three-tier Web3 product: Solidity contracts, a wallet-connected dApp, and a Node backend for off-chain data, scheduled jobs and Stripe payments.
Social & Dating App
A cross-platform Flutter social/dating app with card-swipe matching, real-time messaging, live video (Agora) and push notifications, backed by a custom Node API.
ApeChain Smart Contracts
Working directly with the ApeChain team to design, build and ship production Solidity smart contracts on ApeChain, gas-efficient, audited-pattern contracts powering on-chain products.
Curious Minds Daycare
A full-stack web platform built for Curious Minds Daycare, giving the business a professional online presence plus the tools to manage enrolments, schedules and parent communication.
Toolbox
Technologies I build with
A modern, battle-tested stack, chosen for reliability and scale, not hype.
Architecture & Core
- System Design
- Clean Architecture
- REST & GraphQL API Design
- Microservices
- Scalable Systems
Frontend
- Next.js
- React
- TypeScript
- Tailwind CSS
- JavaScript (ES6+)
Backend
- Node.js
- Express
- Prisma
- PHP (Laravel)
- Python
Data & Analytics
- Supabase
- PostgreSQL
- pgvector / Vector Search
- MongoDB
- Redis
- PostHog
AI & Voice
- OpenAI / Claude (LLMs)
- RAG & Embeddings
- AI Agents
- Image Generation
- Deepgram (STT / TTS)
- Vapi Voice Agents
- Whisper
- ElevenLabs
DevOps
- Docker
- CI/CD (GitHub Actions)
- Nginx
- PM2
- AWS (EC2, Route 53)
- VPS Deployment
Web3
- Solidity
- ERC20 / ERC721 / ERC4907
- NFT Marketplaces
- Cross-chain Bridges
- IPFS
Mobile & Integrations
- Flutter (Dart)
- Firebase
- Shopify
- Stripe
- PayPal
- Webhooks
About
An independent builder you can trust
I'm Faisal Saleem, a freelance software architect and full-stack developer. I take on select projects where I can own the architecture and build the product properly, from schema to shipped.
My focus is modern, scalable web applications: Next.js on the front, Supabase and PostgreSQL on the back, with AI and vector-search features where they add real value. I also bring deep experience in Web3 smart contracts and Flutter mobile when a project needs it.
I work the way a good partner should, clear communication, clean code, honest timelines, and software that keeps running long after it ships.
BSc Computer Science · NFC Institute of Engineering & Technology · 2019 to 2023
Track record
Experience
Years of shipping production software for teams and startups. The track record behind the freelance work.
Technical Lead · Hattrick Solution
Apr 2024 to PresentRemote · Pakistan
- Lead cross-functional engineering teams and own architecture decisions across products.
- Design and run CI/CD pipelines (GitHub Actions) for automated, reliable deployments.
- Set and enforce clean-architecture and code-review standards.
Senior Full-Stack Developer · Fistix
Feb 2023 to Mar 2024Remote · Pakistan
- Promoted from Junior to Senior for consistently shipping high-impact features.
- Built scalable Node.js / Express / Prisma backends and Shopify-integrated e-commerce with Stripe + GraphQL.
- Optimized React UIs for performance and mentored junior engineers.
Web & Mobile Developer · Datalines
Jan 2022 to Jan 2023Multan, Pakistan
- Built Flutter mobile apps with Firebase and custom REST APIs.
- Contributed to NFT marketplace development and smart-contract integration.
- Managed Play Store and App Store releases end-to-end.
Developer (Intern) · The Mars Art & Design
Sep 2021 to Dec 2021Multan, Pakistan
- Built Laravel web applications with UI integration and API connectivity.
- Implemented Stripe payment flows and front-end components.
Writing
From the blog
Practical notes on AI, voice, backend and full-stack, drawn from real, shipped work.
Get in touch
Have a project in mind? Let's build it.
Send me your project details and any notes or files, or book a call. I read every serious request and reply within a day.
- Elsewhere
- LinkedInGitHubDownload CV
- Availability
- Freelance, remote worldwide