Hi 👋, I'm Muhammad Harris Baig
I design backend-heavy SaaS platforms that power real operational workflows — focusing on system architecture, multi-tenant design, and business-critical API engineering.
Operating across 🇬🇧 UK • 🇺🇸 USA • 🌍 Global clients
Open to Backend Engineering • SaaS Architecture • System Design Roles
- 🚀 Build backend-driven SaaS platforms used in real operational workflows
- 🧠 Focus on scalable system design, distributed architecture, and backend reliability
- 🏗️ Experience building multi-tenant systems with strict role-based access control
- ☁️ Design and deploy API-first cloud applications
- 📱 Build full-stack products integrating backend + mobile ecosystems
👉 I focus on systems that behave like real software infrastructure, not demos or prototypes.
- Designed multi-tenant SaaS architectures with strict data isolation models
- Built event-driven backend systems for workflow-based applications
- Engineered end-to-end business systems (booking, procurement, dispatch, commerce)
- Designed normalized relational databases for scalable SaaS platforms
- Built API-first backend systems supporting web and mobile clients
👉 Strong focus on backend architecture, system reliability, and structured business logic design
A private hire dispatch system designed for fleet operators and real-world operational use.
Core System
- Multi-company operational architecture (multi-tenant structure)
- Real-time booking lifecycle engine
- Driver and vehicle allocation system
- Admin + operator control dashboards
- Payment-ready dispatch pipeline
Business Flow Booking → Pricing → Payment → Dispatch → Completion
Tech Stack Next.js • Node.js • Prisma • PostgreSQL • Stripe • REST APIs
I build mobile applications that are fully integrated into backend-driven systems:
- 📲 Cross-platform development (React Native / Flutter)
- 🔗 Deep backend integration with real-time APIs
- 🧠 Intelligent feature systems (AI / detection-based logic)
- 🚀 Converting academic FYPs into production-ready systems
👉 Mobile is treated as a first-class product layer inside full systems, not an isolated skill.
🔗 https://servipro.co.uk/
🔗 Case Study: https://github.com/Harrisbaig7/servipro-case-study
A real operational procurement system for UK-based business workflows.
System Overview
- End-to-end tender → bid → contract workflow engine
- Contractor onboarding and verification pipeline
- Subscription-based SaaS operational model
- Automated document and invoice processing system
Engineering Work
- Multi-role RBAC system (Admin, Agents, Contractors)
- Complex relational database architecture (PostgreSQL)
- Stripe billing and subscription integration
- AWS S3 document management system
- Full audit logging for operational consistency
Operational Impact
- Built to replace manual procurement workflows with automated systems
- Designed for multi-organization usage and real operational environments
- Supports structured business workflow execution across roles
👉 Designed and deployed as a real business-facing system, not a prototype
A backend-driven SaaS platform for managing salon operations across multiple tenants with isolated business environments and role-based access control.
System Overview
- Multi-tenant architecture with salon-level data isolation
- Role-based access control (Admin, Staff, Customer)
- End-to-end appointment lifecycle management
- Product + service commerce system with order handling
Core Modules
- Appointment scheduling and booking engine
- Service catalog with dynamic pricing
- Product inventory and variant management
- Order & payment processing pipeline
- Category-based organizational structure
Engineering Design
- Fully relational PostgreSQL architecture
- Normalized schema design for multi-entity workflows
- Audit-safe and soft-delete enabled system design
- API-first backend architecture for web & mobile clients
👉 Designed as a production-ready SaaS foundation for salon businesses
🏆 Final Year Project (1st Position)
- Mobile + admin ecosystem
- Real-time donation coordination system
- AI-based food detection module
- Backend-driven architecture designed with scalability in mind
👉 Evolving from academic project into a deployable real-world system
- Multi-tenant booking system for salons
- Appointment lifecycle orchestration
- Product and inventory management layer
- Customer and admin dashboards
🔗 https://www.loftaesthetics.co.uk/
- High-performance business website
- SEO-optimized architecture
- Mobile-first responsive UI
🔗 https://www.thegoldenrose.store/
- Fully functional e-commerce system
- Optimized checkout flow
- Production deployment setup
- Multi-tenant system architecture design
- Backend workflow engineering for real operational systems
- Relational database design for business-critical applications
- Subscription & billing systems (Stripe integration)
- Cloud infrastructure design (AWS S3, scalable deployments)
- Mobile + backend system integration
- API-first product engineering mindset
👉 Focused on building systems that reflect real operational scale thinking (multi-user, multi-role, business workflows)
Frontend React • Next.js • Vue • Nuxt • Tailwind • MUI
Backend Node.js • Express • NestJS • Laravel • Django
Mobile React Native • Flutter
Database PostgreSQL • MySQL • MongoDB • Firebase
Cloud & DevOps AWS (EC2, S3) • Docker • CI/CD • Git
Other Prisma • REST APIs • Python (Automation)
💡 I build backend-heavy SaaS systems with real operational complexity — focusing on scalable architecture, multi-tenant design, and production-grade backend workflows.
💬 Open for SaaS engineering roles, backend system design, and production-grade system development.