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05 / SAAS DEVELOPMENT

SaaS development.

Tenant isolation, billing, roles, and the boring parts that decide whether a SaaS survives its first hundred customers. We build them in from the start so you are not rewriting the core at Series A.

What you get
  • Multi-tenant architecture and data isolation
  • Subscription billing and metering
  • Authentication, roles, and permissions
  • Onboarding and self-serve flows
How we work on it

Tenant boundaries are drawn on day one and enforced in the database, not just the application. Security is defense in depth, never a single check.

See the full process →
Related work
acta-os.vercel.app
ACTA — the live product, captured at desktop width
View case study →
ACTA · 2026 · Business operations

ACTA OS — the back office rebuilt as one system

CRM, quotations, procurement, finance, and project timelines on a single data model. Built once for ACTA, configured per company rather than forked.

  • A lead qualifies into a quotation, the quotation becomes a project, and the project rolls up into its own profit-and-loss — one record, no re-keying between eight modules.
  • Finance runs the full ledger in-house: invoices, bills, cash, payroll, tax, and per-project P&L, with document numbering and templates set per company.
  • Clients follow a build through a tokenised share link — a live project timeline that needs no account, no login, and no chasing for a status update.
Internal systemsSaaS developmentProduct design

Private system — walkthrough on request

Start a project.

Tell us what you’re working on. We’ll tell you how we’d approach it — no pitch deck required.

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