Systems Administrator II — Security & IT Systems

M.C. Dean, Inc.; City Of London; On-site; GBP 45,000 - 65,000; Full time

Benefits offered by this job

Competitive Benefits

Leadership & Technical Training

Tuition Reimbursement

Open Communication

Job summary

M.C. Dean, Inc. is seeking a System Administrator 2 to join its Security and Electronic Systems (SES) team.

The role focuses on configuring and maintaining Physical Access Control, CCTV, PSIM and related security systems for federal, local and commercial clients across high-growth markets. You will work with the Programming, Commissioning and Deployment team, handling system triage, patching, AD, VLANs and routine operations, while occasionally visiting client sites and collaborating across

Qualifications

• Requires system administrator experience including triage, problem resolution and system extensions.
• Understanding of Windows patching and vulnerability remediation.
• Basic knowledge of Windows Active Directory hierarchy and implementation.
• Basic knowledge of large-scale networking, VLANs, and routing.
• Flexible shifts including nights, weekends, holidays, and on-call as needed.

Responsibilities

• Configure and maintain Physical Access Control, CCTV, PSIM and other security systems.
• Manage and execute allocated PCD jobs; provide updates and escalate as needed.
• Contribute to AI and other initiatives to evolve the team and program.
• Support daily operations by monitoring system logs and performance.
• Contribute to technical documentation and SOPs.

Skills

Windows administration

Active Directory

Networking (VLANS & routing)

Patch management

System triage & incident handling

Education

Bachelor’s Degree in Information Technology, Risk Management or Cybersecurity

Associate’s Degree in Information Technology, Risk Management or Cybersecurity

High School Diploma

Job description

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 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.

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.

We are seeking a System Administrator 2to 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.

Responsibilities

What 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.

Main responsibilities include but are not limited to:

• 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.

Qualifications

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

Required Progressive Experience:

• 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.
• Requires a basic knowledge of Windows active directory hierarchy and implementation.
• Requires a basic knowledge of large scale networking, VLANS and routing.
• Requires reliable attendance at customer site during work hours required by customer.
• Requires the ability to work flexible shifts that include nights, weekends, holidays and on call as needed.

What we offer:

• A collaborative team inspired by the way engineering and innovation enhance customer outcomes, improve lives, and change the world for the better. We are driven by our core values of agility, expertise, and trust.
• An opportunity to lead and build a business with the support of an industry-leading firm that has been in business for 75 years.
• Investment in your skills and expertise through a combination of professional and technical training programs, including leadership training and tuition reimbursement.
• Open and transparent communication with senior leadership as well as local office management.

Abilities:

• Exposure to computer screens for an extended period of time.
• Sitting for extended periods of time.
• Reach by extending hands or arms in any direction.
• Have finger dexterity in order to manipulate objects with fingers rather than whole hands or arms, for example, using a keyboard.
• Listen to and understand information and ideas presented through spoken words and sentences.
• Communicate information and ideas in speaking so others will understand.
• Read and understand information and ideas presented in writing.
• Apply general rules to specific problems to produce answers that make sense.
• Identify and understand the speech of another person.