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SaaS Development

From MVP to scale. SaaS platforms built to grow.

Stack46 builds multi-tenant SaaS platforms from first MVP to production scale — auth, billing, dashboards and APIs on Next.js, Node.js and PostgreSQL. The same full-stack engineering that built the FourSix46 ecosystem's own platforms, applied to yours.

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What we build

Multi-tenant SaaS architecture

Authentication & role-based access

Subscription billing & payments

Admin dashboards & analytics

API & third-party integrations

MVP to production-scale builds

Terminal code
Data streams

Tech stack

Frontend

Next.jsReactTypeScriptTailwind CSS

Backend

Node.jsGraphQLtRPCPython

Database

PostgreSQLRedisSupabase

Cloud & Infra

AWSVercelCloudflareDocker

Our process

01

Discover

Core feature set, tenancy model and MVP scope defined to ship fast without dead-ends.

02

Design

Product flows and dashboards prototyped and validated with real users.

03

Build

A multi-tenant, secure, scalable platform built on a clean architecture.

04

Scale

Launch, monitor, and iterate — hardening for growth, billing and reliability.

How this is priced

SaaS builds start Fixed-Price for the MVP, then move to a Retainer for ongoing development.

Fixed-PriceRetainer
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Frequently asked

Can you build my SaaS from an idea, or only from a spec?+

From an idea. Stack46 takes founders from concept to launched MVP — shaping the scope, designing the product, and building a platform that's ready to grow, not just a prototype.

How long does it take to launch a SaaS MVP?+

Typically 8–14 weeks for a focused MVP with auth, billing and core features — enough to put a real product in front of paying users, then iterate from real feedback.

Do you handle subscription billing and payments?+

Yes. Stack46 builds subscription billing, plans, trials and payment flows on Stripe, fully integrated with the platform and your admin dashboard.

Is the SaaS multi-tenant and secure by design?+

Yes. We build multi-tenant architecture with role-based access and data isolation from the start, so tenants stay separated and the platform is secure as it scales.

Can you scale the platform as we grow?+

Yes. Built on PostgreSQL, Redis and cloud infrastructure across AWS and Vercel, the platform is designed to scale — and Stack46 stays on to harden and extend it via Retainer.

Ready to start?

Get a quote for saas development — proposal within 48 hours.

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