Slacode
Custom Software Discipline

Multi-tenant SaaS platform engineering built to scale from day one

We build B2B SaaS applications with clean workspace isolation, automated Stripe subscription billing, role-based user management, and responsive Next.js interfaces.

Executive Overview

Multi-Tenant SaaS Platforms & B2B Software

Launching a modern B2B SaaS requires far more than just basic CRUD operations. You need bulletproof tenant data isolation, flexible recurring billing, granular team permissions, audit logs, and frictionless onboarding. We engineer complete multi-tenant SaaS platforms from database schema to user interface. Built with modern TypeScript, PostgreSQL, and scalable cloud infrastructure, our SaaS architectures allow you to add hundreds of paying organizations without performance degradation.

Built as part of our Custom Software practice. We deliver production systems with clean source code handover, zero ongoing agency lock-in, and structured project milestones.

Technical Specifications

Core Engineering Capabilities

Every deliverable is constructed under strict production standards without brittle workarounds.

Tenant Architecture & Security

  • Row-level security (RLS) and schema-isolated multi-tenant PostgreSQL data models
  • Organization workspaces with custom domain support and invite links
  • Granular Role-Based Access Control (RBAC) with Owner, Admin, and Member permissions
  • Single Sign-On (SSO) with Google Workspace, Microsoft Azure AD, and SAML/Okta

Subscription Billing & Metering

  • Stripe Billing integration supporting monthly, annual, per-seat, and tiered subscription plans
  • Usage-based metering and automated invoice generation with tax calculation (Stripe Tax)
  • Self-serve customer billing portal where users can manage payment methods and download receipts
  • Automated dunning and failed payment recovery workflows that protect recurring revenue

Production SaaS Foundations

  • Clean REST and GraphQL APIs ready for public developer consumption and third-party webhooks
  • Live interactive analytics dashboards giving executive teams real-time churn and MRR metrics
  • Audit trail logging tracking every critical administrative action across customer accounts
  • Full 100% intellectual property and source code handover with zero ongoing agency royalties
Practical Deployment

Real-World Client Scenarios

How commercial organizations apply this technology to eliminate bottlenecks and accelerate revenue.

B2B Project & Compliance Management Platform

Built a multi-tenant platform for construction firms to track safety compliance across hundreds of commercial job sites with real-time photo uploads and automated PDF audits.

Measurable Business ImpactScaled to 400+ enterprise customer accounts and $1.2M ARR within 14 months of public launch.
Production Tech Stack
Next.jsPostgreSQL (RLS)PrismaStripe BillingAWS S3Tailwind CSS

Frequently asked questions

Honest answers to the most common questions clients ask before working with us.

Ask a question
We implement PostgreSQL Row-Level Security (RLS) combined with strict application-level tenant context middleware. Every single database query enforces tenant ID scoping at the engine level, making cross-tenant data leakage mathematically impossible.

Ready to deploy multi-tenant saas?

Speak directly with our senior software engineers to map your technical specifications and get an honest roadmap with fixed milestones.