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SAAS DEVELOPMENT SERVICES

SaaS Development Services Built for Multi-Tenant Scale From Day One

Multi-tenancy, billing, and auth architected in from day one — not retrofitted in a scramble after your first enterprise customer asks for SSO or your first power user needs usage-based pricing.

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BONUS Free: SaaS Architecture Starter Checklist — Covers auth, billing, and multi-tenancy decisions to make before you write a line of code.

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In short: Northell's SaaS development architects multi-tenancy, billing, and auth in from day one, not retrofitted after your first enterprise customer asks for it.
CAPABILITIES

What SaaS Development Covers

Multi-Tenant Architecture

Data isolation between customer accounts designed as a core architecture decision, not retrofitted later.

Subscription Billing

Stripe or equivalent integrated from the start, including plan changes and usage-based pricing where relevant.

Enterprise-Ready Auth

Auth architecture built to support SSO/SAML addition without a rewrite when your first enterprise customer asks.

Usage Metering & Limits

Feature gating and usage limits by plan tier built into the core architecture, not bolted on per feature.

FIT CHECK

Built for Specific Buyers, Not Everyone

Founders Building Their First SaaS Product

Want multi-tenancy and billing done right the first time instead of retrofitted under pressure.

SaaS Companies Adding Enterprise Tiers

Need SSO and enterprise-grade auth without rewriting the existing auth system.

Products Moving to Usage-Based Pricing

Need metering and billing logic that can handle more complex pricing than a flat monthly fee.

If you're building a single-tenant internal tool with no plan to sell to multiple customer accounts, standard web application architecture is simpler and cheaper than full SaaS architecture.

PROCESS

From Kickoff to Launch

01

Architecture & Tenancy Design

Multi-tenancy pattern, auth architecture, and billing model designed together before any build starts.

→ SaaS architecture plan
02

Core Build

Multi-tenant data layer, auth, and billing integration built as the foundation, then feature work on top.

→ Working multi-tenant foundation
03

Feature Development

Product features built against the multi-tenant foundation, gated by plan tier where relevant.

→ Shipped, gated features
04

Launch & Scale Support

Deployed with monitoring for tenant-level performance and billing accuracy.

→ Live, monitored SaaS product
STACK

Technologies We Use

Backend
Node.jsPythonPostgreSQL
Billing
StripeChargebee
Auth
SSO/SAMLOAuthRBAC
Infra
AWSDockerMulti-tenant isolation
TODO SaaS products shipped — not yet tracked separately
TODO average time to first paying customer
TODO average build timeline
FAQ

Common Questions About SaaS Development

What's different about SaaS architecture versus a regular web app?

Multi-tenancy (data isolation between customer accounts), subscription billing, and usage metering are core architectural decisions in SaaS that a single-tenant web app doesn't need — retrofitting them later is expensive and risky.

Do you handle billing integration?

Yes — Stripe or a similar billing provider is typically integrated from the start, including plan changes, upgrades/downgrades, and usage-based pricing where relevant.

When should we add SSO for enterprise customers?

Architecting for it early is far cheaper than retrofitting — even if you don't build the full SSO flow on day one, the auth architecture should support adding it without a rewrite.

How do you handle multi-tenant data isolation?

Row-level security or separate schema-per-tenant, depending on your scale and compliance needs — we'll recommend based on your actual requirements, not a default pattern.

Can you take over an existing SaaS codebase?

Yes — we start with an architecture audit, particularly around multi-tenancy and billing, before committing to a timeline for new work.

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