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ESS Technology Specialist ; Tech Specialist

Job in McLean, Fairfax County, Virginia, USA
Listing for: M.C. Dean, Inc.
Full Time position
Listed on 2026-09-25
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, Systems Administrator, IT Specialist
Salary/Wage Range or Industry Benchmark: 104000 - 130000 USD Yearly USD 104000.00 130000.00 YEAR
Job Description & How to Apply Below
Position: ESS Technology Specialist 3 (Tech Specialist 3)

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.

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 an ESS Technology Specialist 3 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

The ESS Tech Specialist 3 will demonstrate the following capabilities:

  • Ability to troubleshoot a wide variety of technical issues in the field; this is a technical assistance position first and foremost and requires a willingness and ability to respond to site issues as a priority and work with a wide variety of project teams, clients, and internal representatives.
  • Fluency with Windows Server operating systems, including server builds, Active Directory configuration including Group Policy Objects (GPOs), systems administration, troubleshooting, and extensive experience with Windows Server Roles and Features.
  • Database administration in a SQL Server environment including use of Management Studio
  • Experience with ancillary technologies for Windows Server including Hyper-V virtualization, storage management, and server failover and clustering
  • Ability to analyze system performance, troubleshoot system performance issues, resolve system problems, and recommend improvements
  • Strong foundational networking skills for Layer 2 / 3 in a Cisco or Juniper environment, firewall exception rules and access control list (ACL) creation and management
  • Familiarity with DISA STIGs, ACAS vulnerability scanning, and general Cybersecurity principles
  • Experience working with design engineers and system administrators
  • Ability to work directly with end user representatives in a professional setting
  • Ability to produce system documentation including system logicals and information flow diagrams in Visio; hardware / software lists in Excel; and generate SOPs and other documentation in MS Word
  • Knowledge of basic cabling types used for communication and security systems as well as…
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