Network Administrator - Annapolis Junction, MD

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.

We are seeking a Network Administrator 3 to join our Security and Electronic Systems (SES) business unit. As part of the SES strategic business unit you will be part of a dynamic team responsible for design, implementation, operations & maintenance, and cybersecurity for large complex resilient hardware and virtualized infrastructure to ensure implemented solutions meet stakeholder needs, standards, and performance requirements.

Support the day‑to‑day planning, installation, configuration, testing, operation, analysis and documentation of complex networks.

Main responsibilities include:

• Support network documentation as well as establishing and maintaining user accounts, user access privileges, and security policies.
• Support planning, installing, configuring, testing, operating, analyzing and documenting duties.
• Perform scheduled network status checks, troubleshooting and problem resolution.
• Support planning and implementation of high and low speed LAN connections and designs.
• Support planning and implementation of VPN solutions, including site‑to‑site VPNs built between hardware based firewalls.
• Support management of hardware firmware revisions, including testing the latest firmware revisions on current configurations and deploying when deemed appropriate.
• Support configuration of common network equipment for operation.
• Collaborate with Security System Technicians on connectivity requirements and procedures.
• Support troubleshooting of common network equipment.
• Document common network equipment configurations and settings.
• Support integration of new technologies into existing high and low speed networks.
• Audit network component hardware and software changes.
• Monitor network performance (availability, utilization, throughput, goodput, and latency) and test for weaknesses.
• Support installation and troubleshooting of enterprise‑class network equipment, including firewalls, routers, and switches.
• Support installation and troubleshooting of fiber cross‑connects to existing backbone cabling.

Clearance/Citizen Type: Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. citizenship, for access to classified information;
active
DoD TS/SCI with polygraph clearance is required.

Key Requirements:

• Education:
  • Bachelor’s Degree and 5+ Years of progressive experience
  • Associate’s Degree and 8+ Years of progressive experience
  • HS Diploma or Equivalent and 10+ Years of progressive experience
• Some experience implementing various network technologies and end‑user support.
• Some experience in the use of routing protocols and switching technologies, LAN/WAN media and protocols, and firewall configuration and protocols.
• Familiarity with Information Assurance concepts and requirements.
• Current certification in one of the following:
  Cisco Certified Network Associate (CCNA) or CompTIA Network+.
• DoD 8570 compliance with Information Assurance Technical (IAT) Level II or higher (e.g., Sec+).
• Strong communications, time management, and organization skills to meet deadlines and quality objectives.
• Experience working independently and with multidisciplinary teams.
• Proficient in MS Excel, Word, Visio,…