An enterprise multi-tenant platform that scaled across many employers - and many systems
How Excellira built a multi-tenant SaaS platform - each enterprise customer in its own branded tenant, integrated across many external systems, with the system of record kept intact. The product matured to acquisition by a major ATS provider.
What we built
Multi-tenant enterprise SaaS
Domain
Social recruiting (context only)
Engagement
11 man-years of development
Outcome
Acquired by a major ATS provider
The challenge
One product, many enterprises, many systems
Large employers needed a single product that could serve many enterprise customers at once - each company its own branded tenant, with many users inside each organization - while connecting reliably to many external systems and keeping one authoritative system of record.
Multi-tenant architecture - many employer organizations on one product, each an isolated, branded experience with multiple users
Integrate with multiple ATS platforms as the system of record for applicants
Distribute listings to many job boards and social platforms
Repeatable tenant setup - templates and standards instead of slow, bespoke builds per customer
Operate at enterprise expectations for reliability and security audits
What Excellira delivered
Shared core, isolated tenants, integration at the center
A platform where one maintainable product served many branded enterprise tenants - orchestrating experience and distribution without ever corrupting the authoritative record.
Multi-tenant foundation & branding
Each enterprise customer ran a branded experience on shared infrastructure (custom domain or subdomain)
A templating model - logos, colors, typography, header imagery - over a standard layout for fast rollout
Governance patterns suited to many organizations on one platform
Built with the operational maturity required for enterprise deployment and security audits
Integration & system of record
A unified publishing and distribution layer integrated with multiple ATS platforms
Distribution to third-party job boards and social platforms
Authoritative data stayed correctly tied to each enterprise’s ATS
How the platform was structured
Branded employer tenants
Each its own domain & users
Shared multi-tenant core
One product · repeatable rollout · integration layer
External systems
ATS (system of record), job boards, social
Applications and listings flowed out to many channels - while each applicant record stayed authoritative in the right ATS.
Inside the platform · representative
employer-tenant.example.com
Representative tenant interface. A branded employer experience over the shared core - layout standardized for fast rollout, content and styling per tenant.
Business outcomes
Scale, distribution, and an exit
The platform reached enterprise scale and broad distribution - and matured to a successful acquisition.
~21K
Development hours over the program
Fortune 100
Adoption among customer organizations
Multi-tenant
Many branded employer tenants, one product
Acquired
By a major ATS provider
Customer names, usage volumes, and the acquirer are withheld under NDA; tenant-scale details are directional.
Scaled to many employer organizations on one product, each with multiple users, via repeatable tenant setup
Broad external distribution while preserving the ATS as the system of record
Fortune 100 adoption among customer organizations
Successful acquisition by a major ATS provider filling a product gap
Need a multi-tenant platform that connects many systems?
If you need to serve many organizations, integrate multiple external systems, and keep a clear system of record at enterprise standards, let’s talk about what an integration-first build could look like.
