A lot of developers talk about building a SaaS. I actually did it.
In 2026 I shipped airesume.pro — an AI-powered resume builder that helps job seekers create ATS-optimized resumes in minutes. I built it alone, from scratch, while working full-time on client projects. This is the exact process I followed.
Why I Built It
After years of building websites for clients, I wanted something of my own — a product that generates revenue while I sleep. I also kept seeing job seekers struggle to write resumes that passed automated screening systems. The problem was real. The market existed. So I built the solution.
The Stack I Used
- Frontend: Next.js 14 + Tailwind CSS
- Backend: Node.js + REST API
- Database: Supabase (PostgreSQL)
- AI: OpenAI API (GPT-4)
- Payments: Stripe (subscription billing)
- Deployment: Vercel
I chose this stack because I could move fast. Next.js handles both frontend and API routes, Supabase gave me auth and database out of the box, and Stripe made billing straightforward.
Step 1 — Validate Before You Build
Before writing a single line of code I validated the idea. I posted in Reddit communities, checked Google search volume for “AI resume builder,” and looked at existing competitors. The demand was there. That gave me the green light.
Step 2 — Build the MVP Only
I forced myself to build only what was needed for a first paying user:
- User signup and login
- Resume input form
- AI generation output
- PDF export
- Stripe payment wall
No dashboard analytics. No referral system. No fancy onboarding. Just the core loop. This took 6 weeks of evenings and weekends.
Step 3 — Launch Small and Fast
I didn’t wait for perfection. I launched on Product Hunt, posted on LinkedIn, and shared in developer communities. The first paying user came within 48 hours of launch. That moment changes everything.
Step 4 — Iterate Based on Real Users
After launch I watched how users moved through the product using Hotjar and Posthog. I fixed friction points, improved the AI prompts, and added features users actually asked for — not features I assumed they wanted.
What I Learned
The biggest lesson: shipping beats planning. Every week you spend perfecting before launch is a week without real user feedback. Build the smallest thing that solves the problem, get it in front of people, and improve from there.
The second lesson: owning a product changes how you build for clients. I now bring product thinking to every client project — conversion, retention, user experience — not just clean code delivery.
Try It
If you’re a job seeker, try airesume.pro and generate your resume in minutes.
If you’re a founder with a SaaS idea and need a developer who has actually shipped one, get in touch.