Senior Specialist, Cyber Administration

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Full Time San Leandro, CA, US

4 days ago Requisition

Salary Range: $ To $ Annually

Job Title:Senior Specialist, Cyber System Administrator

Job Location:San Leandro, CA(This position is 100% onsite)

Security Clearance:Must possess an active U.S. Government “Secret” Security Clearance

Citizenship Requirement: U.S. citizenship is required to obtain and maintain a security clearance.

Additional Requirement: Must be eligible to obtain and maintain a Top-Secret clearance

Schedule:9/80:
Employees work 9 out of every 14 days – totaling 80 hours worked – and have every other Friday off.

Fisica, Inc. is a premier manufacturer of advanced defense products, specializing in the design and production of airborne and ground-based antennas, as well as cutting‑edge electromagnetic systems and simulators. Headquartered in San Leandro, California, with additional operations in Simi Valley, Fisica plays a vital role as a trusted partner to leading defense primes and the U.S. Department of Defense.

Our company operates as - ATI, Randtron, Datron and Space Vector—each bringing deep expertise and innovation to the defense sector. Led by a seasoned management team, Fisica is committed to excellence in engineering, manufacturing, and mission‑critical solutions that enhance national security.

At Fisica, we foster a strong, collaborative work culture that values individual contributions and empowers our employees. Our commitment to innovation, integrity, and teamwork makes us a leader in the defense industry and an exceptional place to build a career.

Position Summary

Fisica Inc., a manufacturer in San Leandro, CA is seeking a Sr Specialist, Cyber Systems Administrator, to support enterprise and classified computing environments supporting aerospace and defense operations.

This position serves as a senior technical member of the infrastructure team and is responsible for the administration, security, availability, and lifecycle management of enterprise servers, virtualization platforms, network infrastructure, cybersecurity systems, and classified information systems.

This is a dual‑function role with responsibilities divided approximately equally between enterprise infrastructure operations and classified systems administration and security support. The enterprise scope includes Windows Server, Microsoft Azure Government and GCC High services, VMware, Fortinet firewalls, Aruba switching and wireless infrastructure, backup and recovery systems, cybersecurity initiatives, and multi‑site support. The classified scope includes system administration, RMF authorization support, continuous monitoring, and cybersecurity compliance for collateral classified and Special Access Program environments.

The successful candidate will be a hands‑on technical professional who can lead complex infrastructure work, troubleshoot across multiple technology domains, and operate effectively within a classified, government‑regulated environment.

Primary Responsibilities

Enterprise Infrastructure Operations

Server Infrastructure Administration

• Administer and maintain Microsoft Azure Government, GCC High services, and on‑premises Windows Server environments supporting enterprise operations.
• Provide backup administration and operational support for Linux‑based systems.
• Manage Active Directory, Group Policy, DNS, DHCP, file services, authentication services, and supporting infrastructure.
• Deploy, configure, maintain, patch, and troubleshoot physical and virtual servers.
• Lead server lifecycle activities, including upgrades, migrations, technology refreshes, and decommissioning.
• Develop and maintain infrastructure standards, diagrams, documentation, and operational procedures.
• Administer and maintain VMware infrastructure and associated management platforms.
• Provision, configure, and manage virtual machines and supporting resources.
• Monitor virtualization performance, availability, and capacity; identify and address resource constraints.
• Lead or support virtualization upgrades,…