Issue Summary:
On July 13 and July 15, 2026, a production issue intermittently affected the Career Site experience across the US production swimlanes (SL1, SL2, SL3, and SL5). During the affected periods, some job seekers were unable to access career site services or view job postings.

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Root Cause:
The issue was caused by performance degradation within the Job Search service that supports career site job listings. Two contributing factors were identified:

• Timezone-related database queries experienced contention during periods of increased traffic, causing requests to queue and, in some cases, time out.
• A configuration check used to determine whether timezone adjustments should be applied was executed multiple times within each user request, creating additional system load.

The combined impact of these conditions reduced the service’s ability to process requests efficiently during higher-traffic periods.

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Corrective Action:
Temporary Fix
As an immediate mitigation on July 13, the processing capacity of the Job Search service was increased by raising the number of allocated tasks in each region.

On July 15, the issue recurred after an automated deployment reset the increased task allocation. Engineering subsequently updated the deployment configuration to maintain the allocation until the long-term solution is implemented with August 7 patch.

Long-Term Fix
The long-term solution with the August 7 patch will include:

• Optimizing timezone-related database queries to prevent requests from blocking one another.
• Caching configuration and timezone data to reduce repeated database calls.
• Improving the efficiency of processing job posting, timezone, and hiring manager information.

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Preventive Measures:
To reduce the risk of recurrence, Cornerstone has taken the following actions:

• Enhanced monitoring and alerting will be added to identify early signs of service degradation.
• Load testing will be performed under peak-traffic conditions to validate the stability and performance of the Career Site Experience.