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Sirenum by Bullhorn
London, United Kingdom
What it is
Sirenum by Bullhorn is workforce management software for scheduling, monitoring, financial, and compliance processes in dynamic workforces. Its AI-powered scheduling matches and distributes shifts according to worker availability, skills, and compliance. The platform supports fatigue, credential, and licensure management, with compliance tracking for workers assigned to shifts. Workers can set availability, accept shifts, view schedules, and request work through a branded mobile worker platform, which also provides reminders, arrival confirmations, and last-minute schedule updates. Worker self-service is available on Bullhorn Recruitment Cloud only. Client tools for viewing schedules, worker ratings, timesheet approvals, and shift requests are also limited to Bullhorn Recruitment Cloud. Reporting includes pre-built dashboards for shift performance, fill rates, and revenue trends, plus customizable analytics. Built on Salesforce, Sirenum is integrated with Bullhorn for Salesforce. Bullhorn describes it as a fit for recruitment agencies, particularly large European firms using Salesforce. It runs on Android, iOS, and the web; pricing is available on request.
For and against
For
- Scheduling matches shifts to availability, skills, and compliance.
- Tracks fatigue, credentials, and licensure.
- Offers pre-built reports and customizable analytics.
- Available on Android, iOS, and the web.
Against
- Pricing is available on request.
- Worker and client self-service require Bullhorn Recruitment Cloud.
The verdict
Sirenum combines shift scheduling with workforce compliance tools, worker updates, and reporting. Buyers should confirm pricing and whether their deployment includes the Recruitment Cloud features they need.
Who it suits
Sirenum is aimed at recruitment agencies managing dynamic workforces, especially large European firms using Salesforce. Its worker tools are relevant to teams that need shift self-service and mobile schedule updates, subject to Bullhorn Recruitment Cloud availability.
Plans and prices
Pricing on request
Contact Bullhorn for purchasing information
Read 9 Oct 2026 · bullhorn.com
On the record
- Client self-service
- Clients can access shift schedules, worker ratings, timesheet approvals, and shift requests; the site says this feature is available on Bullhorn Recruitment Cloud only.sirenum.com · read 9 Oct 2026
- Company headquarters
- Bullhorn says it is headquartered in Boston.sirenum.com · read 9 Oct 2026
- Compliance
- The workforce management platform supports fatigue, credential, and licensure management, with contextual compliance tracking for workers placed on shifts.sirenum.com · read 9 Oct 2026
- Integrations
- Sirenum was built on Salesforce, and Bullhorn describes it as integrated with the Bullhorn for Salesforce platform.bullhorn.com · read 9 Oct 2026
- Intended users
- Bullhorn describes Sirenum as a workforce management solution for recruitment agencies, particularly large European firms using Salesforce.bullhorn.com · read 9 Oct 2026
- Notifications
- The mobile worker platform provides shift reminders, on-time arrival confirmations, and last-minute schedule updates.sirenum.com · read 9 Oct 2026
- Pricing availability
- Bullhorn directs customers interested in purchasing Sirenum solutions to contact their account manager.bullhorn.com · read 9 Oct 2026
- Purpose
- Sirenum provides workforce management technology for scheduling, monitoring, financial, and compliance processes for dynamic workforces.bullhorn.com · read 9 Oct 2026
- Reporting
- The platform includes pre-built reports and dashboards for shift performance, fill rates, and revenue trends, and supports customizable analytics.sirenum.com · read 9 Oct 2026
- Shift matching
- Its AI-powered scheduling matches and distributes shifts based on worker availability, skills, and compliance.sirenum.com · read 9 Oct 2026
- Support
- Sirenum customers are directed to continue using their existing methods to contact the Bullhorn for Salesforce Support team and to contact their account manager about account questions.bullhorn.com · read 9 Oct 2026
- Worker self-service
- Workers can set availability, accept shifts, view schedules, or request work through a branded mobile worker platform; the site says this feature is available on Bullhorn Recruitment Cloud only.sirenum.com · read 9 Oct 2026
