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Army MOS · IT & Cyber

255N Network Operations Warrant Officer

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

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Overview

A Network Operations Warrant Officer manages, plans, designs, engineers, installs, operates, and evaluates automation, communications, and visual information systems across Army and Department of Defense command levels. The officer provides transmission, switching, and control facilities for weapons, command and control, and combat service support systems while supporting the maintenance of Army Signal equipment.

Minimum clearance: TS/SCI

Core Skills

  • Command-system transmission and switching support
  • Automation and visual information systems planning
  • Communications system design and evaluation

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Network and Computer Systems Administrators

Installing, operating, evaluating, and supporting military automation and communications systems transfers to civilian network administration and troubleshooting.

How to prepare: Build a Linux network lab and document its configurations, performance monitoring, and resolution of a simulated connectivity failure.

What the civilian work involves
  • Maintain and administer computer networks and related computing environments, including computer hardware, systems software, applications software, and all configurations.
  • Diagnose, troubleshoot, and resolve hardware, software, or other network and system problems, and replace defective components when necessary.
  • Operate master consoles to monitor the performance of computer systems and networks and to coordinate computer network access and use.
Civilian tools and software (examples)
  • Linux
  • Bash
  • Microsoft Active Directory

Telecommunications Engineering Specialists

Planning, designing, engineering, and evaluating military communications systems transfers to assessing telecommunications needs and implementing system modifications.

How to prepare: Create a sample telecommunications upgrade proposal with user requirements, an existing-system assessment, and a proposed system diagram in Microsoft Visio.

What the civilian work involves
  • Consult with users, administrators, and engineers to identify business and technical requirements for proposed system modifications or technology purchases.
  • Implement system renovation projects in collaboration with technical staff, engineering consultants, installers, and vendors.
  • Assess existing facilities' needs for new or modified telecommunications systems.
Civilian tools and software (examples)
  • Microsoft Visio
  • Autodesk AutoCAD

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Getting Started

  • CompTIA Network+ · Funded · STAR

    Use as a foundational networking credential when preparing for civilian network administration.

    For: Network and Computer Systems Administrators

  • Cisco Certified Network Associate (CCNA) · Funded

    Develop and validate network access, IP connectivity, IP services, security fundamentals, and automation knowledge for network administration.

    Eligibility and preparation: No certification prerequisites.

    For: Network and Computer Systems Administrators

Notes & Sources

Evidence for this guidance (5 documents)
  1. Army COOL MOC feed: 255N Network Operations Warrant Officer

    [1] data/authority/army-codes.json entry 255N (OSD COOL feed, fetched 2026-07-25); DB rank warrant_officer, authority codeType warrant_officer

    Supports: Command-system transmission and switching support, Automation and visual information systems planning, Communications system design and evaluation, Network and Computer Systems Administrators (O*NET 15-1244.00), Telecommunications Engineering Specialists (O*NET 15-1241.01)

  2. O*NET: Network and Computer Systems Administrators

    [2] O*NET 30.3 occupational data

    Supports: Network and Computer Systems Administrators (O*NET 15-1244.00)

  3. O*NET: Telecommunications Engineering Specialists

    [3] O*NET 30.3 occupational data

    Supports: Telecommunications Engineering Specialists (O*NET 15-1241.01)

  4. COOL credential mapping: CompTIA Network+

    [4] 255N cached COOL credential feed

    Supports: CompTIA Network+

    [5]CompTIA: Network+ (Plus) certification exam details · Exam details; retrieved 2026-09-23

    Supports: CompTIA Network+

  5. COOL credential mapping: Cisco Certified Network Associate (CCNA)

    [6] 255N cached COOL credential feed

    Supports: Cisco Certified Network Associate (CCNA)

    [7]Cisco: CCNA certification · How to earn your CCNA, Core exam 200-301 CCNA; updated 31 August 2026, retrieved 23 September 2026

    Supports: Cisco Certified Network Associate (CCNA)

Defense contractor jobs for 255N

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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