Nightwing · 11 hours ago
Cybersecurity Engineer – Email & Endpoint Security
United States
Full-time
Remote
Mid LevelNightwing is a company that provides advanced cyber, data operations, and intelligence mission support services. They are seeking a Cybersecurity Engineer focused on email and endpoint security, responsible for implementing and improving security measures across various platforms.
Information Technology & Services
Responsibilities
Plan, implement, configure, upgrade, and monitor security controls protecting enterprise networks, endpoints, and collaboration/email platforms (Proofpoint, O365, MS Defender, CrowdStrike)
Engineer and maintain email security capabilities including anti-phishing, malware detonation/analysis, impersonation protection, URL/attachment defense, and policy tuning; support improvements to mail flow and authentication (e.g., SPF/DKIM/DMARC alignment as applicable)
Engineer and maintain endpoint security (EDR/NGAV) capabilities including prevention policies, detection tuning, containment workflows, device isolation/quarantine procedures, and fleet-wide deployment/health monitoring
Assess vulnerabilities and security risks across email and endpoint ecosystems; propose, implement, and validate risk mitigation strategies (hardening, policy updates, rule tuning, and control coverage improvements)
Ensure appropriate security controls and governance are in place to safeguard digital files and critical infrastructure, including configuration baselines, access controls, and monitoring/telemetry standards
Respond to security incidents (phishing, account compromise, malware, ransomware, endpoint outbreaks) by coordinating triage, containment, eradication, recovery, and lessons learned—leveraging Defender and CrowdStrike response actions and Proofpoint intelligence/workflows
Integrate and optimize tooling outputs (alerts, logs, and threat intelligence) across platforms to improve detection fidelity, reduce false positives, and enhance operational response (including workflow automation where applicable)
Support year-round tracking, reporting, and guidance for POA&Ms and CMMC assessments, including control implementation evidence, remediation planning, and ongoing control effectiveness validation for email and endpoint security domains
Qualification
Required
Experience with Proofpoint, Microsoft 365/O365, Microsoft Defender, and CrowdStrike
Ability to plan, implement, configure, upgrade, and monitor security controls protecting enterprise networks, endpoints, and collaboration/email platforms
Experience in engineering and maintaining email security capabilities including anti-phishing, malware detonation/analysis, impersonation protection, URL/attachment defense, and policy tuning
Knowledge of mail flow and authentication improvements (e.g., SPF/DKIM/DMARC alignment as applicable)
Experience in engineering and maintaining endpoint security (EDR/NGAV) capabilities including prevention policies, detection tuning, containment workflows, device isolation/quarantine procedures, and fleet-wide deployment/health monitoring
Ability to assess vulnerabilities and security risks across email and endpoint ecosystems
Experience in proposing, implementing, and validating risk mitigation strategies (hardening, policy updates, rule tuning, and control coverage improvements)
Knowledge of appropriate security controls and governance to safeguard digital files and critical infrastructure, including configuration baselines, access controls, and monitoring/telemetry standards
Experience in responding to security incidents (phishing, account compromise, malware, ransomware, endpoint outbreaks) by coordinating triage, containment, eradication, recovery, and lessons learned
Ability to integrate and optimize tooling outputs (alerts, logs, and threat intelligence) across platforms to improve detection fidelity, reduce false positives, and enhance operational response
Experience in supporting year-round tracking, reporting, and guidance for POA&Ms and CMMC assessments, including control implementation evidence, remediation planning, and ongoing control effectiveness validation for email and endpoint security domains
Company
Nightwing
We are the intelligence services company that continually redefines the edge of the possible to keep advancing our national security interests.
1001-5000 employees
Funding
Current Stage
Late StageCompany data provided by crunchbase