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An HR workflow and approvals platform · HR tech · 2026

Turning a single-tenant HR tool into a multi-tenant SaaS

Rebuilt a tool that ran one deployment per customer into a proper multi-tenant SaaS product with configurable approval workflows.

Services

SaaS platform engineering

Stack

Next.jsNode.jsPostgreSQLAuth0
  • New customers onboard in hours instead of a bespoke deployment
  • One codebase now serves every customer instead of dozens of forks
  • Configurable approval workflows without a code change per customer

The problem

Every new customer meant a developer standing up a fresh deployment and hand-editing config for that company's approval chains and org structure. Two years in, the company was maintaining dozens of near-identical deployments that had each drifted slightly from the others.

What we did

  • Multi-tenancy. Consolidated every customer onto one codebase and database, with tenant isolation enforced at the data layer rather than by separate infrastructure.
  • Configurable workflows. Replaced hand-edited approval-chain config with a workflow builder customers configure themselves — roles, approval order, and escalation rules, no deploy required.
  • Identity. Moved authentication to Auth0 with SSO per tenant, so larger customers could plug in their existing identity provider.

The outcome

New customers now onboard themselves in hours instead of waiting on a bespoke deployment, and the engineering team maintains one codebase instead of dozens of forks that used to need individual patching.

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