IconPairix Digital

SaaS Engineering

Build your
Revenue Engine.

Pairix Digital designs and develops custom SaaS platforms for startups and businesses — multi-tenant architecture, subscription billing, admin dashboards, security and post-launch iteration.

Discuss Your SaaS
Stripe
Ready Integration
MRR
Focused Engineering
Zero
Downtime Deployments
Custom
Analytics Engines

The Problem

Why most SaaS builds stall before they scale.

A no-code builder

Fast to start, but multi-tenancy, custom billing logic and real data ownership hit a ceiling fast.

A freelancer

One person, one point of failure. No architecture review, no continuity if they move on mid-build.

A large agency

Layers of account managers between you and the engineer, priced for enterprise retainers you don't need yet.

What we do differently

We architect multi-tenancy, billing and access control up front — as a senior engineer directly on your build, not routed through account managers.

SaaS Essentials

Features built for
Scalable Growth.

From authentication to automated billing, we handle the complex logic required to run a modern software business.

Multi-Tenant Architecture

Isolated data environments for every customer. We build secure, scalable foundations that handle thousands of organizations seamlessly.

Subscription Logic

Integrated Stripe/LemonSqueezy billing. Support for tiered pricing, free trials, usage-based billing, and automated invoicing.

User Onboarding

Frictionless sign-up flows and in-app walkthroughs that reduce churn and increase activation.

Admin Dashboards

Manage users, monitor subscriptions, and view growth metrics from a custom-built back office.

RBAC & Security

Granular permissions for admins, managers, and team members to keep sensitive data protected.

Automated Workflows

Webhooks and background jobs handle email automation and data processing without slowing down the UI.

The Build Path

What happens in your first 8 weeks.

No guesswork. Each phase has a scope, a deliverable, and a review point.

01

Weeks 1–2

Architecture & Scope

We map the tenant model, core user journey, and subscription logic before a line of product code is written.

You'll have:

  • Data model
  • Auth strategy
  • Billing plan
02

Weeks 3–6

Core Build

Frontend, backend, billing integration and admin tooling built in parallel against a staging environment you can review continuously.

You'll have:

  • Staging environment
  • Working billing flow
  • Admin dashboard v1
03

Weeks 7–8

Hardening & Launch

Access-control checks, payment-flow validation, monitoring and CI/CD wired in before go-live.

You'll have:

  • Security review
  • CI/CD pipeline
  • Production launch

The Systems

How we build platforms that don't need a rewrite at 100 customers.

Four architectural principles applied to every SaaS build.

Tenant Isolation Model

Every customer's data is scoped and isolated at the schema or row level, so growth in one tenant never touches another.

Subscription State Engine

Trials, upgrades, downgrades, dunning and cancellations are handled as explicit states driven by billing-provider webhooks.

Access Control Layer

Role-based permissions enforced at the API layer, not just hidden in the UI.

Observability Baseline

Logging, error tracking and product analytics wired in from the first deploy, not bolted on after an incident.

The SaaS Stack

Built to Scale to $100k MRR.

A modern, battle-tested stack that allows for rapid iteration while maintaining enterprise-level security.

Next.js (App Router)TypeScriptTailwind CSSPrisma / DrizzlePostgreSQLStripe / LemonSqueezyClerk / Kinde AuthResend / Postmark

Pricing

Scoped to where your product actually is.

Every engagement is scoped after a discovery call — no fixed public price until requirements are clear.

MVP

Validate the core product

Custom quote
  • Single-tenant or lightweight multi-tenant setup
  • Core user flow + auth
  • Stripe/LemonSqueezy billing
  • Admin dashboard v1
Book a Discovery Call
Recommended

Growth

Ready for paying customers

Custom quote
  • Full multi-tenant architecture
  • RBAC + team roles
  • Usage-based or tiered billing
  • Analytics dashboard
Book a Discovery Call

Scale

Handling real growth

Custom quote
  • Background jobs & queues
  • Advanced observability
  • Performance hardening
  • Ongoing iteration support
Book a Discovery Call

Is This Right for You?

Who this works best for.

Good fit

  • You have a validated product idea and need it built right the first time
  • You need real multi-tenancy, not a single-tenant app pretending to be SaaS
  • You want direct access to the engineer building your product

Not a fit

  • You need a no-code MVP validated in days, not weeks
  • You're looking for a large team with account management overhead
  • You expect specific revenue outcomes guaranteed — we guarantee the engineering, not the market

FAQ

Common questions about SaaS development.

It designs and builds the full product — UX/UI, frontend, backend, database, authentication, billing and deployment — as a subscription application that multiple customer organizations use from a single codebase.

Ready to build your SaaS?

We'll help you scope the MVP and the scale-up phase. Get a technical roadmap within 24 hours.

Book a SaaS Consultation