Lead Windows Systems Engineer at Coherent Corp.

Key Responsibilities

• Lead architecture, administration, and lifecycle management of Windows Server, Active Directory, Azure AD/Entra ID, and Group Policy.
• Manage and secure Office 365 (Exchange Online, SharePoint Online, OneDrive, Teams, Intune, M365 Defender).
• Design and enforce identity and access management policies including conditional access, MFA, SSO, and federation.
• Implement and monitor endpoint and server security controls—patching, anti-malware, EDR/XDR, encryption, and privileged access management.
• Act as SME for incident response and root cause analysis related to Windows, AAD, and O365.
• Partner with cybersecurity, network, and application teams to ensure a Zero Trust security posture.
• Define standards, automate administration (PowerShell, scripting), and provide mentorship to junior engineers.
• Ensure compliance with frameworks (NIST, CIS, ISO27001, SOX).

Qualifications

• Bachelor’s in Computer Science, Information Systems, or related field (or equivalent experience).
• 12+ years hands-on Windows Systems Engineering experience with at least 3 years in a lead role.
• Strong expertise in Azure AD/Entra ID, Active Directory, Group Policy, DNS, DHCP, PKI.
• Proven experience managing O365 tenant at enterprise scale.
• Deep knowledge of identity security, RBAC, conditional access, federation, and hybrid identity models.
• Proficiency in PowerShell and automation.
• Familiarity with security frameworks, vulnerability management, and incident response.
• Excellent communication and leadership skills.

Working Conditions

The working conditions are those found in typical office environments.  

Physical Requirements

Ability to sit for extended periods (typically 6–8 hours per day); Manual dexterity to operate a keyboard, mouse, and other office equipment; Ability to communicate clearly in person and over phone/video calls

Safety Requirements

All employees are required to follow the site EHS procedures and Coherent Corp. Corporate EHS standards.

Quality and Environmental Responsibilities

Depending on location, this position may be responsible for the execution and maintenance of the ISO 9000, 9001, 14001 and/or other applicable standards that may apply to the relevant roles and responsibilities within the Quality Management System and Environmental Management System.

Culture Commitment

Ensure adherence to company’s values (ICARE) in all aspects of your position at Coherent Corp.:

Integrity – Create an Environment of Trust

Collaboration – Innovate Through the Sharing of Ideas

Accountability – Own the Process and the Outcome

Respect – Recognize the Value in Everyone

Enthusiasm – Find a Sense of Purpose in Work

Coherent Corp. is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

Company