Microsoft Security Engineer

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. 

We are seeking a highly skilled Microsoft Security Engineer to lead and enhance our enterprise security posture through advanced certificate-based authentication, directory service hardening, and endpoint security enforcement. This role will focus on improving our certificate authority (CA) infrastructure, securing directory services, and integrating modern authentication mechanisms across the organization.

This role is required to be onsite 3 days per week in Los Angeles, CA.

• Certificate Authority (CA) System Enhancement:
• Design and implement improvements to the internal CA infrastructure to support secure, certificate-based communication for digital services.
• Automate certificate lifecycle management and enforce certificate issuance policies.
• Directory Services Security:
• Strengthen Active Directory (AD) and Azure AD environments using certificate-based authentication.
• Implement and manage LDAP signing and Channel Binding Tokens (CBTs) to prevent man-in-the-middle attacks.
• Endpoint Security & Logging:
• Enforce PowerShell logging across all endpoints to improve auditability and threat detection.
• Collaborate with endpoint management teams to ensure consistent policy deployment and compliance.
• Authentication Modernization:
• Integrate and manage advanced authentication methods including Multi-Factor Authentication (MFA), smart cards, and FIDO2-compliant hardware security keys.
• Support conditional access policies and identity protection strategies in Microsoft Entra ID (formerly Azure AD).
• Collaboration & Documentation:
• Work closely with infrastructure, identity, and compliance teams to align security initiatives with business needs.
• Maintain detailed documentation of configurations, policies, and procedures.

• 5+ years of experience in Microsoft security engineering or infrastructure roles.
• Deep understanding of Active Directory, PKI, and certificate-based authentication.
• Hands-on experience with LDAP, CBTs, and secure channel configurations.
• Proficiency in PowerShell scripting and Group Policy management.
• Experience with Microsoft Entra ID, Intune, and Defender for Endpoint.
• Familiarity with security frameworks such as NIST, CIS, or ISO 27001.

• 401(k), including an employer match of 100% of the first 3% contributed and 50% of the next 2% contributed  
• Medical, Dental, and Vision Insurance (available on the 1st day of the month following your first day of employment)  
• Group Term Life, Short-Term Disability, Long-Term Disability  
• Voluntary Life, Hospital Indemnity, Accident, and/or Critical Illness  
• Participation in the Discretionary Time Off (DTO) Program  
• 11 Paid Holidays Annually 

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!