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Security Engineer – Microsoft Defender
UltraViolet Cyber. Serve as the subject matter expert for securing the Microsoft cloud tenant and advise on architecture, design, and implementation of secure solutions across Azure, O365, and M365 .
Posted 11/6/2026full-timeArlington • Virginia • United StatesSeniorLead💰 $110,000 - $115,000 per yearWebsite
Core Competencies
Role fitCore Competencies
Use this summary to align your resume positioning with the role.
Demonstrates expertise in securing Microsoft cloud environments, including Azure and Microsoft 365, with a strong focus on implementing security controls, managing the Microsoft Defender ecosystem, and optimizing Conditional Access Policies. Proficient in Kusto Query Language for security analytics and incident response, while maintaining compliance with industry standards.
Highest-signal resume keywords
Microsoft Azure SecurityMicrosoft Defender Ecosystem ManagementKusto Query Language (KQL) ProficiencyConditional Access Policies (CAPs) ImplementationMicrosoft Certified Solutions Expert (MCSE)
ATS Keywords
Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills
Microsoft AzureMicrosoft 365Microsoft DefenderMicrosoft PurviewKusto Query Language (KQL)Data Loss Prevention (DLP)Zero Trust PrinciplesVulnerability AssessmentsPenetration TestingSecurity Controls Remediation
Soft Skills
Exceptional Time ManagementWritten Communication SkillsCommunication Skills
Tools & Technologies
Azure SentinelMicrosoft Defender for EndpointMicrosoft Defender for CloudMicrosoft Defender for IdentityMicrosoft Defender for Office 365SOAR PlatformsSplunk
Certifications & Qualifications
Microsoft Certified Solutions Expert (MCSE)Microsoft 365 Admin ExpertMicrosoft Cybersecurity Architect ExpertSecurity+CISSPOSCPGCIHAZ-900AZ-500SC-900
Industry Keywords
Cloud SecurityCompliance RequirementsGovernance Best PracticesIncident ResponseClient-Facing Delivery Experience
Tech Stack
Tools & technologiesAzureCloudCyber SecurityPMPSplunk
About the role
Key responsibilities & impact- Serve as the subject matter expert for securing the Microsoft cloud tenant and advise on architecture, design, and implementation of secure solutions across Azure, O365, and M365
- Lead development and enforcement of Conditional Access Policies for access control across personas, groups, and applications
- Optimize Microsoft Defender components, including Defender for Endpoint, Defender for Cloud, Defender for Identity, and Defender for Office 365
- Implement Microsoft Purview, including data classification, sensitivity labels, Data Loss Prevention (DLP), and eDiscovery workflows
- Design, run, and optimize Kusto Query Language (KQL) queries for Azure Sentinel, Defender, and log analytics
- Review and remediate security controls through vulnerability assessments, penetration tests, and red/blue team engagements
- Guide cross-functional teams on security controls, compliance requirements, policy, and governance best practices
- Collaborate with security engineers, cloud architects, identity teams, and incident response analysts to maintain a resilient, compliant, mission-ready tenant
- Participate in a rotating on-call schedule for incident response or outage support
Requirements
What you’ll need- Ability to obtain DHS EOD Public Trust Clearance
- Master’s Degree + 10 years’ experience OR Bachelor’s degree + 13 years OR 19 years total experience
- Expert-level hands-on experience deploying, managing, and securing Azure, Entra, Defender, Purview, Office 365, and Microsoft 365 in large enterprises
- Deep understanding of Conditional Access Policies (CAPs), Azure AD/Entra, and Zero Trust principles
- Proven track record implementing and managing the full Microsoft Defender ecosystem and Microsoft Purview, including DLP, sensitivity labels, and eDiscovery
- Advanced proficiency writing KQL for detection, investigation, response, and reporting
- Active, expert-level certification such as Microsoft Certified Solutions Expert (MSCE), Microsoft 365 Admin Expert, Microsoft Cybersecurity Architect Expert, AZ-900, AZ-500, SC-900, SC-100, SC-200, SC-300, SC-400, or SC-401
- Cybersecurity certification: Security+
- Strong networking, firewall, VPN, and segmentation knowledge as related to cloud deployments
- Exceptional time management, written, and communication skills
- CISSP, OSCP, or GCIH desired
- ITIL, Agile, or PMP familiarity/certification desired
- Experience with SOAR platforms such as Splunk or Microsoft Sentinel desired
- Hands-on exposure to third-party cloud security tooling, including CASBs, CNAAPs, and SD-WANs, desired
- Previous consulting or client-facing delivery experience desired
Benefits
Comp & perks- Diversity and inclusion in the workplace
- Rotating on-call schedule with incident response or outage support