- Administer, monitor, and tune email security platforms including Microsoft Defender for Office 365, Exchange Online Protection, and ICES solutions.
- Investigate phishing, business email compromise (BEC), spoofing, malware, and other email-based threats by analyzing headers, URLs, and sender reputation.
- Support SPF, DKIM, and DMARC configuration and authentication alignment across managed domains.
- Develop scripts using Python, PowerShell, Go, or Bash to automate repetitive security tasks and improve reporting efficiency.
- Maintain technical documentation in Jira, Confluence, and GitHub, and support the creation of SOPs and investigation runbooks.
- Assist with third-party sender validation and mail-flow review.
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