Justin Cox
Senior Security Engineer
- Role
- Senior Security Engineer at Vensure Employer Solutions
- Location
- Casa Grande, AZ, US
- LinkedIn followers
- 500 followers
About Justin Cox
Information Security Threat Detection Engineer with over 11 years IT experience in…
Experience
Senior Security Engineer
May 2025 — Present
Creating cadences of vulnerability management scans in Qualys weekly and quarterly for new business units. This includesboth external and internal scans. Communicating with stakeholders (including C-Level leadership) on proposed plan,maintaining availability, researching best practices, running test scans, and achieving PCI certified reports for the GRC team.Presenting additional modules needed to stakeholders and senior leadership to achieve compliance.Created 10 SOP’s for Proofpoint and Crowdstrike proceduresCreated a Disaster Recovery Plan for Proofpoint TRAP server which was approved by senior leadership.Updated DMARC policies for domains in Proofpoint Email Fraud Defense. Troubleshoot DKIM and SPF pass and alignmentrates, review approved 3rd party senders, review SPF rules, and work with 3rd party senders to generate new DKIM keys toimprove alignment.Audit and update DNS records in cloudflare to improve resiliency and email reputation.Create Crowdstrike RFM monthly audit program for senior leadership, including presenting findings, creating a reporttemplate, and working with relevant teams to fix the incompatibility issues.Perform daily audits of DLP dictionaries to check for any errors.Lead on updating DLP policies to improve resiliency for outbound emails.Troubleshoot email delivery issues in Proofpoint POD, and exchange.Troubleshoot user issues with email digest, Zenguide and encrypted email.Perform daily audits on Proofpoint Email Protection Quarantine folders (check for DMARC Rejects or emails that should notbe blocked).
Education
Western Governors University
Bachelor of Science - BS Network operations and security
2019 — 2019
Western Governors University
Master of Science - MS
2020 — 2020
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