05Service

SaaS & Custom Software

End-to-end software products built to run as a business.

Start a project
340
Tenants
99.9%
Uptime

Building a SaaS product is an engineering problem and a product problem simultaneously. We've done it enough times to know where the complexity hides — multi-tenancy, billing, auth, permissions, onboarding, and the hundred other things that aren't in the feature spec but determine whether the product succeeds. We build SaaS products that are ready to scale from day one.

What's included

How we deliver it

Multi-tenant architecture

Proper tenant isolation from day one — schema-per-tenant or row-level security depending on your scale and compliance requirements. No retrofitting later.

Authentication & RBAC

Email/password, OAuth, SSO, and MFA — with a role-based access control system that supports complex permission hierarchies without becoming a maintenance burden.

Billing & subscriptions

Stripe-powered billing with support for usage-based pricing, seat-based plans, free trials, annual discounts, and a self-serve upgrade/downgrade flow.

Onboarding flows

The first 10 minutes determine whether a user stays. We design and build onboarding flows that get users to their first value moment as fast as possible.

Admin & operator tooling

Internal dashboards for your team to manage tenants, debug issues, run migrations, and monitor system health — without needing direct database access.

API-first design

Every feature is accessible via a well-documented REST or GraphQL API, enabling integrations, mobile clients, and third-party extensions from day one.

What you receive
  • Multi-tenant SaaS application
  • Authentication and RBAC system
  • Billing and subscription management
  • Admin dashboard and analytics
  • API documentation
  • Infrastructure as code
Technology stack
NestJSPostgreSQLRedisStripeAWSDockerKubernetesTerraform
How we work

Our process

01

Product architecture

We define the data model, tenancy strategy, and system boundaries before writing code. Decisions made here determine your scaling ceiling.

02

Core infrastructure

Auth, billing, multi-tenancy, and CI/CD set up in the first sprint — the foundation everything else is built on.

03

Feature development

Iterative feature development with working software every two weeks. Priorities adjusted based on user feedback from early access customers.

04

Beta & hardening

Private beta with real users, performance testing, security audit, and infrastructure hardening before public launch.

05

Launch & scale

Zero-downtime launch, runbook documentation, on-call setup, and a post-launch retainer to handle the inevitable surprises.

Common questions

Ready to get started?

Tell us about your project and we'll respond within 24 hours.