SaaS Product Engineering

End-to-end SaaS development — architecture, APIs, dashboards, billing, and production deployment.

Updated April 11, 2026Canada-wide deliveryRemote-first

Scope a SaaS build Or email milan@findmilan.ca

Who this is for

Founders building a first SaaS product and needing a senior build partner
Bootstrapped teams replacing a fragile MVP with a real architecture
Internal tools teams building multi-tenant dashboards with role-based access
B2B SaaS teams adding billing, usage metering, or tenant features

What's included

Architecture: API design, data modeling, auth, multi-tenancy, background jobs

Frontend: Next.js App Router, React Server Components, typed API clients

Backend: NestJS or Next.js route handlers, PostgreSQL, migrations, seeding

Billing: Stripe subscriptions, usage metering, customer portal, webhooks

Observability: logging, error tracking, performance monitoring, uptime

CI/CD, staging/production environments, and zero-downtime deploys

How the engagement runs

01
Architecture call
Pin the non-obvious decisions early: data model, tenancy, auth, background work, billing shape. Cheap to change on a whiteboard, expensive after launch.
02
Core schema and auth
Database schema, migrations, auth, and role-based access land before feature work. These are the parts that are hardest to retrofit later.
03
Feature delivery
Tight feedback loop on features with a staging environment and typed contracts end-to-end. Ship small, review often, keep the trunk green.
04
Billing and ops
Stripe billing, customer portal, dunning, and support tooling. Observability hooked up so production issues are visible, not silent.
05
Launch and hand-over
Runbooks, monitoring dashboards, and documentation so your team or the next engineer can own the product without guessing.

Proof, references, and recent work

View topic hub

Apr 11, 2026Project update

XReporter operations platform

Updated April 11, 2026. Multi-user operations product covering staff visibility, client workflows, and reporting in a single web application.

View cited page

Apr 11, 2026Project update

Rouge Athletics Events platform

Updated April 11, 2026. Structured event management, registration flows, and an admin surface for an organization that needs dependable day-to-day operations.

View cited page

Apr 09, 2026Blog guide

AI consulting and custom AI development services

Published April 9, 2026. Explains how architecture, backend systems, and delivery discipline matter once an AI-assisted product moves beyond demo stage.

View cited page

Related guides

View topic hub

N°01Website Development

Custom Website Development for Service Businesses and Startups

What modern website development should include when your business needs speed, SEO, lead generation, and clean user experience.

APR 07, 2026Read article→

N°02AI Consulting

AI Consulting and Custom AI Development Services for Growing Businesses

How Milan helps companies plan, validate, and ship custom AI products, automation systems, and production-ready workflows.

APR 09, 2026Read article→

N°03AI Consulting

AI Personal Assistant Development and OpenClaw Setup

Where AI assistants create real business value, how custom assistant systems are built, and when OpenClaw setup makes sense.

MAR 11, 2026Read article→

FAQs

Do you build on Next.js or NestJS?

Depends on the shape of the product. For most SaaS I start on Next.js route handlers with a typed API layer; when the backend grows heavier — queues, workers, long-running jobs — NestJS joins the stack. I will recommend whichever keeps the product operable.

What database do you recommend for a new SaaS?

PostgreSQL by default. It is boring, battle-tested, and handles every SaaS shape from early to scale. Specialised stores only where there is a real reason.

Can you integrate Stripe billing and subscriptions?

Yes. Subscriptions, metered billing, customer portal, webhooks, dunning, and tax handling are part of the scope. I have shipped production Stripe integrations and know the common failure modes.

Do you work on both greenfield and rescue builds?

Yes. Greenfield MVPs where speed matters, and rescue builds where the codebase needs a senior hand to get back on track — both are common engagements.

Available across these Canadian markets

I take on saas engineering engagements across Canada. Each market page covers the local business context, industries, and how the work typically runs.

Need the full market overview first? Visit the service areas page for a Canada-wide view.