System Administrator - Sunnyvale, CA

Overview

About M.C. Dean

M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber‑physical solutions for the nation's most mission‑critical facilities, secure environments, complex infrastructure, and global enterprises. With over 7,000 employees, our capabilities span electrical, electronic security, telecommunications, life safety, automation and controls, audiovisual, and IT systems. Headquarters in Tysons, Virginia, M.C. Dean delivers resilient, secure, and innovative power and technology solutions through engineering expertise and smart systems integration.

Why Join Us?

Our people are passionate about engineering innovation that improves lives and drives impactful change. Guided by our core values—agility, expertise, and trust—we foster a collaborative and forward‑thinking work environment. At M.C. Dean, we are committed to building the next generation of technical leaders in electrical, engineering, and cybersecurity industries.

What you’ll do: In this role you will be working as part of a team to monitor, maintain, and test Physical Access Control, CCTV, PSIM, and other electronic security systems and support implementation, troubleshooting and maintenance of Information Technology (IT) systems in support of the endpoint devices.

This position provides Tier 2 (Escalation) problem identification, diagnosis and resolution of problems and supports the escalation and communication of status to agency management and internal customers.

This position requires onsite support at a single work location in the San Jose, CA area. Candidates must be flexible in schedule, have the ability to travel, and be able to communicate professionally with customers and coworkers. Punctuality, attendance, a willingness to learn, and an ability to work well with others are key to success in this role.

Main responsibilities include but are not limited to:

• Manage physical security system support to meet service level agreements.
• Configure and manage Windows operating systems and install/load operating system software.
• Perform desktop hardware and operating system set‑up, imaging software loading, and antivirus updates.
• Analyze security system infrastructure performance and recommend improvements.
• Troubleshoot, maintain integrity and configure components along with implementing operating systems enhancements to improve reliability and performance.
• Provide detailed analysis and feedback to agency management and internal customers for escalated tickets.
• Perform IAVA updates and patching to ensure compliance with Information Assurance (IA) standards.
• Apply Security Technical Implementation Guides (STIGs) to Windows based operating systems (servers and workstations).
• Implement and maintain sophisticated enterprise Windows Active Directory Architectures.
• Perform daily operations to include Active Directory management, monitoring and reviewing system logs.
• Configure and maintain virtual hypervisors to include VMware and Hypervisor.
• Deploy, configure, and maintain Virtual Desktop Infrastructure (VDI) platforms to include Citrix Xen Desktop.
• Install, configure, and maintain 3rd‑party applications.
• Install, configure and maintain highly available SQL database Engines.
• Deploy and maintain storage platforms similar to Dell Equal Logic and Dell Power vault.
• Analyze requirements of future deployments and make recommendations for IT infrastructure including all hardware and software required to fulfill those requirements.
• Perform root cause analysis on significant issues across all tiers of support.
• Perform preventive maintenance actions including system back‑ups, error log reviews, database size analysis, and integrity checks.
• Develop new system and application implementation plans to include testing procedures and ensuring operational reliability.
• Stay current with technological developments and make recommendations for ways to take advantage of new and emerging technology.
• Create technical documentation such as standard operating procedures (SOP) and as‑built documents for both technical and non‑technical audiences.
• Train system users and other system support personnel as needed.
• Perform all duties with minimal…