System Administrator
Listed on 2026-08-28
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IT/Tech
Cybersecurity, IT Specialist
Location: City Of London
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 9,000 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.
OverviewM.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 9,000 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.
WhyJoin 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.
We are seeking a System Administrator 2 to join our Security and Electronic Systems (SES) business Unit. As part of (SES) Strategic Business Unit you will be part of a team that designs, engineers, integrates, operates and maintains electronic security services inclusive of intrusion detection, access control, biometric authentication, video surveillance, audio visual, it systems, perimeter defense and command and control systems for federal, local and commercial customers across high-growth markets.
ResponsibilitiesWhat you’ll do:
In this role you will be working as part of the Programming, Commissioning and Deployment (PCD) team to configure and maintain Physical Access Control, CCTV, PSIM and other electronic security systems as your primary duty. This team is part of an overall program of regional and international teams embedded at our client, regularly undertaking in intra-team initiatives, team-based and individually-lead training and career development.
The position provides occasionally Tier 1 helpdesk support for the previously mentioned systems.
- Install, configure and troublshoot CCTV, Physical Access control, communications and other Enterprise Physical Security systems.
- Be responsibile for the management and execution of your allocated PCD jobs - routinely providing updates to team leadership and escalating where required.
- Undertaken AI and other initiatives to continually evolve the team and program.
- Support daily operations to include monitoring and reviewing system logs.
- Stay current with technological developments and make recommendations for ways to take advantage of new and emerging technology.
- Contribute to technical documentation such as standard operating procedures (SOP) and as builds for both technical and non-technical audiences.
- Perform all duties under direct supervision.
- Participate in inter-regional "Foreign Exchange" visits with sister teams in USA to share knowledge and drive global team cohesion.
Education:
- 2+ Years of Experience with a Bachelor's Degree in Information Technology, Risk Management, Cybersecurity preferred
- 6+ Years of Experience with an Associate's Degree in Information Technology, Risk Management, Cybersecurity preferred
- 8+ Years of Experience with a High School Diploma
- Requires system administrator experience in performing triage on system problems, resolving the system. problems, analyzing system data to prevent problems, implementing new workstations, and system extensions.
- Requires an understanding of Windows patching and vulnerability remediation.
- Re…
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