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Senior Physical Security Engineer

M.C. Dean

Arlington, VA · $120k–$170k a year · Posted October 22, 2026

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About the job

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 Senior Physical Security Engineer 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.

Responsibilities

Analyze system performance and recommend improvements

Provide support to the system administration and engineering team using advanced knowledge of networking principals and system administration skills to troubleshoot systems and operating systems

Communicate with customers, manufacturers, vendors and system administrators

Train system users and other system support personnel

Analyze and modify preventive maintenance checklists for system changes

Troubleshoot system performance issues and implement corrective actions

Organize and prepare detailed documentation of system performance, including service request records and analysis

Perform desktop hardware and operating system set-up, imaging software loading, and antivirus updates

Conduct in depth research and evaluate the research of Technical Specialists in order to evaluate existing and future systems

Provide on site system support post deployment Read and interpret engineering drawings

Understand SOP and SOW documentation

Ensure test lab equipment is maintained Interface with engineering team to ensure design efficiency

Interface with internal and external customers demonstrating excellent oral and written communication skills

Conduct research and development of entire systems and analyze all interoperability and constructability scenarios

Read blue prints, schematics and statements of work (SOW).

Coordinate with field personnel and/or engineering team to discuss any potential installation issues

Answer support calls to help field personnel and system administrators with any installation issues encountered on the job site

Conduct research and development on new system manufacturers (i.e. access control, intrusion detection and closed circuit television systems).

Performs research, selection, modification, design, maintenance, and/or the development of Technical Security equipment and systems.

Independently and as part of a team, reviews, analyzes, and resolves difficult and complex technical security problems.

Resolves or recommends solutions to overlapping and conflicting security requirements by utilizing knowledge, skills, and abilities, including the ability to interpret various directives, rules, and regulations.

May act as a subject matter expert, requiring formal and independent learning and the ability to translate this expertise into recommendations in specific circumstances.

Communicates orally with customers and groups on technical security related issues.

Writes reports to document mission events, research findings, procedures, and other technical security related issues.

Qualifications

Clearance/Citizen Type: Applicants selected will be subject to a government security investigation and may meet eligibility requirements, including U.S. Citizenship, for access to classified information; ACTIVE SECRET Clearance is REQUIRED

Education/Experience Requirements

Bachelor's Degree with 7+ years experience or

Master's Degree with 5+ years experience

System administrator experience in performing triage on system problems, resolving the system problems, analyzing system data to prevent problems, and implementing new workstations and system extensions

Vendor certifications for electronic systems preferred

Reliable attendance at customer site during work hours required by customer

Ability to work a flexible schedule that includes occasional nights and weekends

Ability to travel CONUS and OCONUS

Position requires expertise in VMS/CCTV systems (Bosch, Milestone, and Genetec)

Position requires working knowledge of Electrical Security Systems, including: ACS, PSIM, PIDS, IDS

Position requires system architecture/design experience

Position requires the ability to obtain IAT Level II Certification

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.

We offer an excellent benefits package including:

A competitive salary

Medical, dental, vision, life, and disability insurance

Paid time off

Tuition reimbursement

401k Retirement Plan

Military Reserve pay offset

Paid maternity leave

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.

Pay Range

USD $120,000.00 - USD $170,000.00 /Yr.

Analyze system performance and recommend improvements

Provide support to the system administration and engineering team using advanced knowledge of networking principals and system administration skills to troubleshoot systems and operating systems

Communicate with customers, manufacturers, vendors and system administrators

Train system users and other system support personnel

Analyze and modify preventive maintenance checklists for system changes

Troubleshoot system performance issues and implement corrective actions

Organize and prepare detailed documentation of system performance, including service request records and analysis

Perform desktop hardware and operating system set-up, imaging software loading, and antivirus updates

Conduct in depth research and evaluate the research of Technical Specialists in order to evaluate existing and future systems

Provide on site system support post deployment Read and interpret engineering drawings

Understand SOP and SOW documentation

Ensure test lab equipment is maintained Interface with engineering team to ensure design efficiency

Interface with internal and external customers demonstrating excellent oral and written communication skills

Conduct research and development of entire systems and analyze all interoperability and constructability scenarios

Read blue prints, schematics and statements of work (SOW).

Coordinate with field personnel and/or engineering team to discuss any potential installation issues

Answer support calls to help field personnel and system administrators with any installation issues encountered on the job site

Conduct research and development on new system manufacturers (i.e. access control, intrusion detection and closed circuit television systems).

Performs research, selection, modification, design, maintenance, and/or the development of Technical Security equipment and systems.

Independently and as part of a team, reviews, analyzes, and resolves difficult and complex technical security problems.

Resolves or recommends solutions to overlapping and conflicting security requirements by utilizing knowledge, skills, and abilities, including the ability to interpret various directives, rules, and regulations.

May act as a subject matter expert, requiring formal and independent learning and the ability to translate this expertise into recommendations in specific circumstances.

Communicates orally with customers and groups on technical security related issues.

Writes reports to document mission events, research findings, procedures, and other technical security related issues.

Clearance/Citizen Type: Applicants selected will be subject to a government security investigation and may meet eligibility requirements, including U.S. Citizenship, for access to classified information; ACTIVE SECRET Clearance is REQUIRED

Education/Experience Requirements

Bachelor's Degree with 7+ years experience or

Master's Degree with 5+ years experience

System administrator experience in performing triage on system problems, resolving the system problems, analyzing system data to prevent problems, and implementing new workstations and system extensions

Vendor certifications for electronic systems preferred

Reliable attendance at customer site during work hours required by customer

Ability to work a flexible schedule that includes occasional nights and weekends

Ability to travel CONUS and OCONUS

Position requires expertise in VMS/CCTV systems (Bosch, Milestone, and Genetec)

Position requires working knowledge of Electrical Security Systems, including: ACS, PSIM, PIDS, IDS

Position requires system architecture/design experience

Position requires the ability to obtain IAT Level II Certification

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.

We offer an excellent benefits package including:

A competitive salary

Medical, dental, vision, life, and disability insurance

Paid time off

Tuition reimbursement

401k Retirement Plan

Military Reserve pay offset

Paid maternity leave

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.