Cybersecurity Ops Technologist I (Email Security)
Core
Administer, configure, and optimize enterprise email security infrastructure (Proofpoint) to protect a hybrid M365/on-premises Exchange environment from phishing, BEC, and malware threats for 50,000+ mailboxes.
Role type
Senior IC Email Security Operations Engineer
Builds
Secure email gateways, authentication policies, and automated response playbooks for a large enterprise
Domain
Cybersecurity / Email Security
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Proofpoint administration (TAP, TRAP, Secure Email Relay, Adaptive Email Security, Email Isolation, Email Fraud Defense), DKIM/SPF/DMARC strategy, mail flow policy design, quarantine management, hybrid M365/Exchange troubleshooting, threat intelligence analysis
Preferred skills
M365 Defender for Office 365 integration, experience with alternative gateways (Mimecast, Cisco, Barracuda), SOC incident handling methodologies
Technologies
Proofpoint, Microsoft 365, Exchange Server, M365 Defender
Responsibilities
Administer and optimize enterprise Proofpoint deployment; Design and maintain secure email gateway rulesets and mail flow policies; Own DKIM, SPF, and DMARC strategy end-to-end; Manage and troubleshoot complex mail relay and connector configurations; Analyze threat intelligence to tune detection rules; Partner with SOC to build automated response playbooks; Serve as escalation point for operational inquiries and troubleshooting
Seniority
Mid-level, hands-on IC
