Senior Microsoft Cloud Security Engineer

Uvcyber; Arlington (VA); On-site; USD 140,000 - 220,000; Full time

Job summary

UltraViolet Cyber is seeking a Senior Microsoft Cloud Security Engineer to secure and optimize a large Microsoft cloud environment including Azure, Entra, Defender, Purview, and Microsoft 365.

You’ll collaborate with security engineers, cloud architects, identity teams, and incident responders to ensure a resilient, compliant tenant and to support enterprise clients. This role requires deep Microsoft cloud expertise and on‑call readiness.

Qualifications

• Expert-level hands-on experience deploying, managing, and securing Azure, Entra, Defender, Purview, Office 365, and Microsoft 365 in large enterprises.
• Lead the development and enforcement of Conditional Access Policies for various personas, groups, and applications.
• Optimize Microsoft Defender components (Defender for Endpoint, Defender for Cloud, Defender for Identity, Defender for Office 365).
• Design, run and optimize Kusto Query Language (KQL) queries for Azure Sentinel and log analytics.
• Review and remediate security controls through vulnerability assessments and incident response engagements.

Responsibilities

• Serve as SME for securing the Microsoft cloud tenant across Azure, O365, and M365.
• Guide cross-functional teams on security controls, compliance requirements, policy, and governance best practices.
• Participate in rotating on-call schedule to provide incident response support during outages.

Skills

Azure

Azure AD/Entra

Microsoft Defender

Microsoft Purview

Office 365

Microsoft 365

KQL

Conditional Access

Zero Trust

Incident Response

Education

Master’s degree

Bachelor’s degree

Tools

Splunk

Microsoft Sentinel

Job description

Make a difference here.

UltraViolet Cyber is a leading platform-enabled unified security operations company providing a comprehensive suite of security operations solutions. Founded and operated by security practitioners with decades of experience, the UltraViolet Cyber security-as-code platform combines technology innovation and human expertise to make advanced real-time cybersecurity accessible for all organizations by eliminating risks of separate red and blue teams.

By creating continuously optimized identification, detection, and resilience from today’s dynamic threat landscape, UltraViolet Cyber provides both managed and custom-tailored unified security operations solutions to the Fortune 500, Federal Government, and Commercial clients. UltraViolet Cyber is headquartered in McLean, Virginia, with global offices across the U.S. and in India.

UltraViolet Cyber has an exciting position for a Senior Microsoft Cloud Security Engineer as we deploy, manage, and hardening our Microsoft cloud environment, including Azure, Office 365 and Microsoft 365. The Senior Microsoft Cloud Security Engineer should thrive on complexity, possess an analytical mindset, and bring deep expertise on managing and securing Microsoft's cloud platform. You'll collaborate across teams, collaborating with security engineers, cloud architects, identity teams, and incident response analysts to ensure our tenant is resilient, compliant, and always mission ready.

• Serve as the go-to, subject matter expert (SME) for securing the Microsoft cloud tenant, advising on architecture, design, and implementation of secure solutions across Azure, O365, and M365.
• Lead the development and enforcement of Conditional Access Policies, aligned with best practices for managing access control for personas, groups, and applications.
• Act as the primary SME in optimizing the Microsoft Defender suite of components (Defender for Endpoint, Defender for Cloud, Defender for Identity, and Defender for Office 365)
• Implement Microsoft Purview, including data classification and sensitivity labels, Data Loss Prevent (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.

• 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 suite of the Microsoft Defender ecosystem and Microsoft Purview (DLP, sensitivity labels, 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, SC-401
• Cybersecurity certifications: Security+
• Strong networking, firewall, VPN, and segmentation knowledge as it relates to cloud deployments
• Exceptional time management, written and communication skills.
• Participate in rotating on-call schedule across the team, to provide incident response or support during outages.

Desired:

• CISSP, OSCP, GCIH
• ITIL, Agile, or PMP familiarity/certification
• Experience with SOAR platforms (e.g. Splunk, Microsoft Sentinel)
• Hands‑on exposure to third‑party cloud security tooling (CASBs, CNAAPs, SD‑WANs)
• Previous consulting or client‑facing delivery experience

UltraViolet Cyber maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect our company's differing products, services, industries and lines of business. Candidates are typically placed into the range based on the preceding factors.

We sincerely thank all applicants in advance for submitting their interest in this position. We know your time is valuable.

UltraViolet Cyber welcomes and encourages diversity in the workplace regardless of race, gender, religion, age, sexual orientation, gender identity, disability, or veteran status.

If you want to make an impact, UltraViolet Cyber is the place for you!