Remote- Systems Engineering -

We are seeking an experienced Senior Systems Engineer to support and secure a regulated aerospace and defense manufacturing environment. This role is responsible for the design, implementation, administration, and security of enterprise IT systems with a strong emphasis on Microsoft 365 Government Cloud, infrastructure security, compliance, and data protection.
The ideal candidate brings deep technical expertise, a security-first mindset, and hands-on experience supporting CMMC Level 2, ITAR-controlled data, and defense-industry compliance requirements.
Key Responsibilities

Systems & Cloud Administration

Administer and secure Microsoft 365 Government Cloud (GCC/GCC High) environments
Manage Exchange Online, SharePoint Online, OneDrive, and Microsoft Teams
Oversee Active Directory (on-prem and hybrid), including identity lifecycle management, GPOs, and access controls
Design and maintain hybrid infrastructure, including Hypervisor platforms (VMware/Hyper-V)
Monitor system performance, availability, and capacity planning
Security Engineering & Compliance
Implement and maintain security controls aligned with CMMC Level 2, NIST 800-171, and ITAR requirements
Design, manage, and secure PKI infrastructure, including Certificate Authorities and Certificate Servers
Enforce data encryption standards for controlled data, both at rest and in transit
Support secure data transfer mechanisms for regulated environments
Lead vulnerability management, security hardening, and audit readiness efforts
Support SOX ITGC requirements on related systems
Network & Perimeter Security
Configure, manage, and monitor Fortinet firewalls, VPNs, and network security appliances
Administer VPN access for remote users and third-party partners
Implement network segmentation and zero-trust principles where applicable
Troubleshoot complex network and security incidents
Backup, Recovery & Business Continuity
Manage enterprise backup and recovery solutions (including Rubrik or similar platforms)
Perform and validate disaster recovery testing and documentation
Ensure data integrity, retention, and compliance with regulatory requirements
Governance, Documentation & Collaboration
Maintain detailed system documentation, policies, procedures, and security artifacts
Collaborate with operations, sales, engineering, finance, and compliance teams
Support internal and external audits related to cybersecurity and regulatory compliance
Preferred Qualifications
Microsoft certifications (Azure, M365, Security)
Security certifications (Security+, or equivalent)
Experience in aerospace & defense manufacturing or regulated industrial environments
Familiarity with data loss prevention (DLP) solutions and zero-trust architectures
Additional Requirements
Must be eligible to work with ITAR-controlled data
Ability to work on-site in Valencia, CA full time
Strong communication, documentation, and problem-solving skills

Benefits

Benefits include 8 health plan options, dental, life and supplemental insurance, and 401(k) with employer match.
This position requires use of information which is subject to the International Traffic in Arms Regulations (ITAR). All applicants must be U.S. persons within the meaning of ITAR. ITAR defines a US person as: any individual who is granted U.S. citizenship; or. any individual who is granted U.S. permanent residence ("Green Card" holder); or. any individual who is granted status as a "protected person" under 8 U.S.C.
TA Aerospace is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex including sexual orientation and gender identity, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.
If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access our career center as a result of your disability.

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