SaaS Platforms
SaaS platforms built to grow, not to rewrite
Multi-tenant products with billing, roles, and tenant isolation done right the first time — so scaling is a config change, not a six-month rebuild.
SaaS development is more than a login screen and a Stripe button. It's multi-tenancy, subscription billing, role-based access, tenant isolation, and the dozen quiet decisions that determine whether your platform scales cleanly or buckles under its tenth customer. I build the whole thing end to end — the data model, the billing logic, the permissions system, and the deploy pipeline that ships it safely.
Most SaaS rewrites I get called in for trace back to two early mistakes: tenancy bolted on after the fact, and a stampede toward microservices nobody needed yet. Both are expensive to unwind. I solve it with a modular monolith — clear domain boundaries inside one deployable system — so you ship fast now and can split out services later only when real load demands it. Billing that reconciles with Stripe, RBAC that holds up under audit, and tenant isolation you can actually trust are the foundation, not a phase two.
Seventeen years of shipping production software means I've already hit the edge cases that sink first-time SaaS builds: proration and plan changes, failed-payment dunning, a customer who needs SSO and another who needs per-seat limits, the noisy-neighbor tenant degrading everyone else. I design for those on day one instead of patching them under fire. You get a platform that grows predictably — and an engineer who's honest about what your stage actually needs.
What you get
Deliverables
Multi-tenant architecture
A tenancy model — shared schema with row-level security or schema-per-tenant — chosen for your isolation, compliance, and scale needs, not a default.
Billing & subscriptions
Stripe integration handling plans, proration, upgrades, trials, dunning, and webhooks that reconcile so your revenue numbers are always correct.
RBAC permissions system
Role- and resource-based access control with tenant-scoped roles, enforced server-side and documented so audits don't become a fire drill.
Tenant isolation
Data, queries, and background jobs scoped per tenant so one customer can never see or starve another's resources.
Feature flags & rollouts
A flagging setup for gated launches, gradual rollouts, and per-plan features so you ship behind a flag and flip when you're ready.
Deploy pipeline & docs
CI/CD, migrations, monitoring, and architecture documentation handed over so your team can run and extend the platform without me.
Stack
Technologies I use for this
How it goes
The engagement
Discovery
We map your tenancy model, billing rules, permission requirements, and growth targets before any code — these decisions are the expensive ones to change.
Architecture
I design the modular monolith and data model to fit your stage, with clean domain boundaries that leave the door open to extract services later.
Build & iterate
Tenancy, billing, and RBAC land first as a working core, then features stack on top behind flags with short feedback loops throughout.
Ship & support
Deploys you can trust, monitoring in place, handover docs written, and an engineer who stays available as the platform scales.
FAQ
Questions about SaaS Platforms
- Should my SaaS use microservices or a monolith?
- Almost certainly a modular monolith to start. It gives you clean domain boundaries and fast iteration without the operational tax of microservices, and because the boundaries are already there, you can extract a service later when real load — not speculation — justifies it.
- Which multi-tenancy approach do you use?
- It depends on your isolation and compliance needs. Shared-schema with PostgreSQL row-level security is the right default for most B2B SaaS; schema-per-tenant or database-per-tenant makes sense when you have strict isolation or data-residency requirements. I'll recommend the one that fits, not the one that's fashionable.
- Can you integrate Stripe billing and handle the hard parts?
- Yes — that's most of the work. Plans, proration on upgrades and downgrades, trials, failed-payment dunning, and webhook reconciliation so your database and Stripe never drift. I've shipped subscription billing enough times to handle the edge cases that usually leak revenue.
- Can you take over or fix an existing SaaS codebase?
- Often, yes. I'll audit the current architecture, tenancy, and billing first, then give you a straight assessment of what's salvageable and what needs reworking — frequently the multi-tenancy or permissions layer — before committing to a full rebuild.
More services
Explore the rest of the stack
Frontend Development
Fast, accessible interfaces in React, Next.js and TypeScript.
Backend & APIs
Reliable services, clean REST/GraphQL APIs, sane data models.
AI & LLM Engineering
RAG, agents, and LLM features wired into real products.
Database Design & Optimization
Schemas that scale and queries that stay fast.
E-Commerce Solutions
Custom storefronts and headless commerce that convert.
Cloud & DevOps
CI/CD, containers, and infrastructure that ships safely.
Need help with SaaS Platforms?
Tell me about your project and I'll tell you honestly whether I'm the right fit.
Get in touch