Senior Systems Engineer - Microsoft 365 & Security

The Senior Systems Engineer - Microsoft 365 & Security supports and secures a regulated aerospace manufacturing IT environment. You will administer Microsoft 365 GCC, hybrid Active Directory, virtualized servers, backups, and networking, while designing and maintaining security controls aligned to CMMC, NIST 800-171, and ITAR. The role is primarily on-site, collaborating with cross-functional teams and preparing for audits and business continuity needs.

Responsibilities

• Administer and secure Microsoft 365 GCC, including Exchange, SharePoint, One
• Drive, and Teams.
• Manage on-premises and hybrid Active Directory, identity lifecycle, and access controls.
• Design, operate, and secure virtualized and hybrid infrastructure (VMware/Hyper-V).
• Implement and maintain controls for CMMC Level 2, NIST 800-171, and ITAR-regulated data.
• Configure and monitor Fortinet firewalls, VPNs, and network segmentation.
• Manage enterprise backup, disaster recovery testing, and data retention compliance.
• Lead vulnerability management, security hardening, and audit readiness efforts.
• Create and maintain system documentation, policies, and security artifacts while supporting audits.

Required Skills

• Microsoft 365 Government Cloud Administration
• Active Directory and Hybrid Identity Management
• Network and Perimeter Security (Fortinet, VPN)
• CMMC Level 2 and NIST SP 800-171 Compliance
• PKI and Certificate Management
• Virtualization (VMware or Hyper-V)
• Backup and Disaster Recovery (e.g., Rubrik)
• Security Hardening and Vulnerability Management
• Data Encryption and Secure Data Transfer
• IT Governance and Audit Support (SOX ITGC)