Full-Stack SaaS Products

SaaS Product Engineering

End-to-end SaaS product engineering — from concept to scale. Multi-tenant architecture, subscription billing, user management, and growth mechanics designed for recurring revenue businesses.

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40+
SaaS Products
$100M+
Combined ARR
10 Weeks
Avg MVP Time
3x
Growth Rate

What's Included

Multi-Tenant Core

Data isolation, tenant-specific configurations, and white-label capability from the ground up.

Billing Engine

Stripe integration with plan management, usage metering, trials, proration, and dunning automation.

User & Team Management

Self-serve signup, team invitations, role-based access, and organization management.

Growth Infrastructure

Feature flags, A/B testing, product analytics, and PLG mechanics built into the product.

Notification System

Multi-channel notifications (email, in-app, push, Slack) with preference management.

API Platform

Public API with documentation, webhooks, and third-party integration framework.

Technology Stack

Frontend

Next.js React TypeScript Tailwind Shadcn/ui

Backend

Node.js tRPC Prisma PostgreSQL Redis

Services

Stripe Resend Clerk Inngest Vercel

Real-World Results

Vertical SaaS for Real Estate

Challenge

Manual processes across 5 disconnected tools

Solution

Unified vertical SaaS with CRM, listings, transactions, and client portal

Result

2,000 subscribers in year one, $2.4M ARR, raised $8M Series A

Developer Tools Platform

Challenge

Open-source project needing commercialization

Solution

SaaS wrapper with team features, usage billing, enterprise SSO, and admin dashboard

Result

$500K ARR from free-to-paid conversion, 15% conversion rate on free tier

Key Benefits

Ship Fast

MVP in 8-12 weeks with proven SaaS architecture patterns.

Scale Smart

Multi-tenant efficiency means near-zero marginal cost per customer.

Grow Revenue

Billing, trials, and conversion mechanics built into the product.

Iterate Quickly

Feature flags and modular architecture enable weekly releases.

Our Process

Product Strategy

Market research, feature prioritization, pricing model, and competitive positioning.

Technical Architecture

Multi-tenant design, API contracts, data models, and infrastructure planning.

MVP Sprint

8-12 weeks to core product with auth, billing, and key features.

Beta & Feedback

Private beta, analytics review, user interviews, and rapid iteration.

Growth Phase

Performance scaling, feature expansion, growth experiments, and optimization.

How We Compare

Aspect Traditional Widelly
Approach Feature-first, architecture-later Architecture-first, features follow
Billing 6 months to implement Stripe-native from week 2
Multi-Tenancy Bolted on, inconsistent Core architecture principle
Time to Market 6-12 months 8-12 weeks MVP

FAQ

What does full-stack SaaS engineering include?
Everything: frontend, backend, database, billing, auth, multi-tenancy, API, admin dashboard, analytics, CI/CD, monitoring, and documentation. We deliver a complete, production-ready product u2014 not a prototype.
Can you build on top of our existing codebase?
Yes. We frequently join existing projects to add SaaS capabilities like billing, multi-tenancy, user management, or to scale the architecture. We adapt to your tech stack and development practices.
How do you price SaaS development?
SaaS MVPs start at $50K-$80K for a focused product. Complex platforms range from $100K-$300K+. We provide detailed proposals with milestone-based payments so you can validate progress before committing to the full project.
What tech stack do you recommend for SaaS?
Our go-to stack: Next.js + TypeScript frontend, Node.js/tRPC backend, PostgreSQL database, Prisma ORM, Stripe billing, NextAuth.js, and Vercel/AWS deployment. We adapt based on your specific requirements.

Related Services

MVP Development Product-Led Growth Platforms Subscription & Billing Platforms
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