SaaS engineering

SaaS development: the platforms I've built and run

For two years I've built SaaS products end to end: server-rendered Next.js frontends, FastAPI and Node.js APIs, Stripe billing and role-based access. This is the production work behind it, and what I'd bring to your team.

Download CV (PDF) Contact Osama

Platforms: Emergi Mentors, Wheelyst
Backend: FastAPI · Node.js/Express
Frontend: Next.js · TypeScript · SSR
Billing: Stripe tiers and usage-based plans

Where I've done this

Real products, and exactly what my part was.

Australian mentorship SaaS

Emergi Mentors

Full Stack Developer, current role (remote)

Rebuilt the frontend in Next.js 14, TypeScript and Tailwind CSS with server-side rendering to cut initial load time
Designed and built FastAPI APIs for 5 core modules: Job Board, Job Tracker, Purchase History, Usage Tracking and Subscriptions
Own end-to-end Stripe billing across the full subscription lifecycle
Led the technical SEO overhaul: SSR, JSON-LD structured data and automated sitemaps

Next.js
TypeScript
FastAPI
PostgreSQL
Stripe

Visit the live product

Anonymous vehicle and pet contact SaaS

Wheelyst

Owned the backend end to end

Built the complete Node.js/Express API behind every feature
Real-time scan alerts over Socket.io, an anonymous messaging relay and voice calling
Stripe subscription tiers: Starter, Pro and Fleet
An enterprise fleet-management module for B2B clients

Node.js
Express
Socket.io
Next.js
Stripe

Visit the live product

What I'd bring to your team

Roles and B2B accounts
Role-based access and business accounts, like the Wheelyst fleet module for B2B clients.
Billing that matches the product
Tiered and usage-based Stripe plans, with webhooks keeping the database in step.
APIs in FastAPI or Node.js
Clean REST and real-time APIs with JWT auth and role-based access, in whichever backend your team runs.
Fast, indexable frontends
Server-rendered Next.js and TypeScript, tuned for Core Web Vitals, with structured data from the start.

Frequently asked questions

What SaaS products has Osama Habib built?

He works on Emergi Mentors, an Australian mentorship SaaS, where he rebuilt the Next.js frontend, built FastAPI modules and owns the Stripe billing. He also built the complete backend for Wheelyst, an anonymous contact SaaS.

Which stack does Osama Habib use for SaaS?

Next.js, React, TypeScript and Tailwind CSS on the frontend; FastAPI or Node.js/Express on the backend; PostgreSQL, MongoDB or Supabase for data; Stripe for billing; and Docker, CI/CD, Vercel, Render or AWS for deployment.

Is Osama Habib open to SaaS engineering roles?

Yes. He is looking for a full-time, remote Full Stack Engineer role, ideally on a SaaS product built with Next.js, TypeScript, Node.js or FastAPI.

Need this on your team?

I'm open to full-time remote Full Stack Engineer roles. I work from Pakistan (UTC+5).

Download CV (PDF)Email Osama LinkedIn profile

Contact Osama Read the blog on Next.js and Stripe