Custom E-commerce or Web App — Built on Next.js + Firebase by Iulian B.Custom E-commerce or Web App — Built on Next.js + Firebase by Iulian B.
Custom E-commerce or Web App — Built on Next.js + FirebaseIulian B.
Cover image for Custom E-commerce or Web App — Built on Next.js + Firebase
Need something more than a website? A custom online store, a booking platform, a member portal, an internal tool, a SaaS MVP — I build them in Next.js + Firebase + Vercel. Fast, scalable, and yours to own.

What I build

Custom e-commerce stores with product catalog, cart, checkout, Stripe payments
Booking & scheduling platforms with calendar, reminders, payments
Member portals with authentication, dashboards, role-based access
Internal tools to replace spreadsheets, manual workflows, or expensive SaaS
SaaS MVPs for founders validating an idea fast

Tech stack

Frontend: Next.js (App Router), Tailwind, TypeScript
Backend: Firebase (Auth, Firestore, Cloud Functions, Storage)
Hosting: Vercel (production-ready, edge-cached, auto-scaling)
Payments: Stripe (one-time, subscriptions, marketplaces)
This stack scales from zero to millions of users without rewrites. No vendor lock-in to a no-code tool, no monthly SaaS fees stacking up.

My process

Discovery call (free, 30 min). We talk about what you want to build, your users, your business model, and timeline.
Scope & quote. I send a written scope with milestones, deliverables, and fixed quote. Usually 2-3 days after the call.
Build in milestones. Most projects break into 2-4 milestones with payment per milestone. You see progress every week.
Launch & handoff. Full source code, documentation, Loom walkthroughs, deployment guide. 30 days of bug-fix support included.

Pricing ranges (for reference)

Simple custom store (catalog + cart + Stripe): $1,800-2,500
Booking platform (calendar + payments + email): $2,200-3,000
SaaS MVP (auth + dashboard + payments + 2-3 core features): $3,500-6,000
Complex platform: custom quote after discovery
Final price depends on scope. Some projects are smaller, some are larger.

Recent proof

I've shipped landing pages and sites scoring 95-100 on PageSpeed. The technical depth and discipline carry over to app work. See case studies.

Who this is for

Founders building an MVP fast without sacrificing quality
Business owners replacing expensive SaaS with a custom tool
Operators who outgrew Shopify / Wix / no-code and need ownership

Next step

Message me with: what you want to build, who it's for, your rough timeline, and your budget range. I'll reply within 24h with whether I'm a fit and what a free discovery call would cover.
FAQs

Contact for pricing
Duration6 weeks
Tags
Firebase
Next.js
Vercel
Web App
Web Developer
E-Commerce
Service provided by
Iulian B. Bucharest, Romania
Custom E-commerce or Web App — Built on Next.js + FirebaseIulian B.
Contact for pricing
Duration6 weeks
Tags
Firebase
Next.js
Vercel
Web App
Web Developer
E-Commerce
Cover image for Custom E-commerce or Web App — Built on Next.js + Firebase
Need something more than a website? A custom online store, a booking platform, a member portal, an internal tool, a SaaS MVP — I build them in Next.js + Firebase + Vercel. Fast, scalable, and yours to own.

What I build

Custom e-commerce stores with product catalog, cart, checkout, Stripe payments
Booking & scheduling platforms with calendar, reminders, payments
Member portals with authentication, dashboards, role-based access
Internal tools to replace spreadsheets, manual workflows, or expensive SaaS
SaaS MVPs for founders validating an idea fast

Tech stack

Frontend: Next.js (App Router), Tailwind, TypeScript
Backend: Firebase (Auth, Firestore, Cloud Functions, Storage)
Hosting: Vercel (production-ready, edge-cached, auto-scaling)
Payments: Stripe (one-time, subscriptions, marketplaces)
This stack scales from zero to millions of users without rewrites. No vendor lock-in to a no-code tool, no monthly SaaS fees stacking up.

My process

Discovery call (free, 30 min). We talk about what you want to build, your users, your business model, and timeline.
Scope & quote. I send a written scope with milestones, deliverables, and fixed quote. Usually 2-3 days after the call.
Build in milestones. Most projects break into 2-4 milestones with payment per milestone. You see progress every week.
Launch & handoff. Full source code, documentation, Loom walkthroughs, deployment guide. 30 days of bug-fix support included.

Pricing ranges (for reference)

Simple custom store (catalog + cart + Stripe): $1,800-2,500
Booking platform (calendar + payments + email): $2,200-3,000
SaaS MVP (auth + dashboard + payments + 2-3 core features): $3,500-6,000
Complex platform: custom quote after discovery
Final price depends on scope. Some projects are smaller, some are larger.

Recent proof

I've shipped landing pages and sites scoring 95-100 on PageSpeed. The technical depth and discipline carry over to app work. See case studies.

Who this is for

Founders building an MVP fast without sacrificing quality
Business owners replacing expensive SaaS with a custom tool
Operators who outgrew Shopify / Wix / no-code and need ownership

Next step

Message me with: what you want to build, who it's for, your rough timeline, and your budget range. I'll reply within 24h with whether I'm a fit and what a free discovery call would cover.
FAQs

Contact for pricing