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Response Engineer – PhishGuard
CloudflareResponse Engineer for PhishGuard analyzing sophisticated email threats at Cloudflare. Collaborating with security teams to protect global organizations from cyber threats.
About the role
Key responsibilities & impact- Conduct continuous, real-time monitoring of email threat queues to review and analyze sophisticated attacks flagged by Cloudflare Email Security automated systems.
- Investigate customer-reported submissions, execute proactive threat hunts targeting emerging patterns, and perform manual retraction or quarantine of verified malicious emails.
- Provide critical feedback to Detection Engineering to update machine learning models and contribute novel campaign data to global intelligence repositories.
- Identify nuanced threat patterns by correlating technical telemetry with behavioral indicators, generating detailed threat dossiers for impending organizational risks.
- Deliver direct crisis intervention and proactive phone notifications to customers regarding high-dollar BEC threats and active insider risks.
- Lead technical onboarding sessions for new customers, configuring internal system instances with bespoke detection rules, thresholds, and custom allow/block lists.
- Guide customers through their multi-year DMARC implementation journey toward strict "Reject" policy enforcement by conducting SPF and DKIM alignment audits.
Requirements
What you’ll need- Undergraduate degree in Computer Science, Information Security, Information Systems, or equivalent practical experience.
- 5+ years of experience tracking and analyzing complex cyber campaigns utilizing technical indicators such as Domains, IP Addresses, and email headers.
- Proven expertise analyzing, investigating, and defending against highly targeted phishing, invoice fraud, and Business Email Compromise (BEC) attacks.
- Deep working knowledge of core email authentication protocols (SPF, DKIM, DMARC) and aggregate/forensic data interpretation.
- Hands-on experience utilizing AI LLM tools (such as OpenCode or Windsurf) to develop automations for daily analysis and productivity workflows.
- Excellent verbal and written English communication skills, with a strong ability to translate complex technical threats into actionable business intelligence for executive stakeholders.
Benefits
Comp & perks- Health insurance
- 401(k) retirement plan
- Paid time off
- Flexible work arrangements
- Professional development opportunities
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
Cyber Campaign AnalysisThreat HuntingTechnical Telemetry CorrelationEmail Header AnalysisMalicious Email QuarantineMachine Learning Model FeedbackData InterpretationThreat Dossier GenerationDetection Rule ConfigurationDMARC Implementation
Soft Skills
Verbal CommunicationWritten CommunicationStakeholder Engagement