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Army MOS · IT & Cyber

948B Electronic Systems Maintenance 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

An Electronic Systems Maintenance Warrant Officer manages the installation, operation, repair, maintenance, and modification of radio, radar, computer, navigation, avionics, communications, cryptographic, and other electronic equipment. The officer inspects faulty equipment, assigns work, schedules maintenance, establishes repair and quality control procedures, manages training and budgets, and advises commanders on equipment capabilities, limitations, procurement, and employment.

Core Skills

  • Complex communications equipment fault diagnosis
  • Cryptographic equipment maintenance oversight
  • Repair procedure development and quality control
  • Electronics procurement and capability assessment

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.

Electronics Maintenance Supervisor

Assigning repair work, planning maintenance schedules, evaluating subordinates, and ensuring electronics repair quality transfer directly to supervising an electronics maintenance shop.

How to prepare: Build a portfolio using releasable examples of maintenance schedules, repair quality checks, and technician work assignments.

What the civilian work involves
  • Inspect, test, and measure completed work, using devices such as hand tools or gauges to verify conformance to standards or repair requirements.
  • Monitor employees' work levels and review work performance.
Civilian tools and software (examples)
  • Microsoft Excel
  • Microsoft Project

Electrical and Electronic Engineering Technologists and Technicians

Diagnosing complex communications faults and overseeing electronic equipment repair, modification, and test procedures provide directly relevant troubleshooting and maintenance experience.

How to prepare: Prepare a practical troubleshooting demonstration that documents a fault, test sequence, corrective action, and verification of proper operation.

What the civilian work involves
  • Modify, maintain, or repair electronics equipment or systems to ensure proper functioning.
  • Set up and operate specialized or standard test equipment to diagnose, test, or analyze the performance of electronic components, assemblies, or systems.
  • Identify and resolve equipment malfunctions, working with manufacturers or field representatives as necessary to procure replacement parts.
Civilian tools and software (examples)
  • Microsoft Excel
  • Adobe Acrobat

Telecommunications Equipment Installers and Repairers, Except Line Installers

Coordinating communications equipment installation and maintenance and diagnosing complex communications repairs transfer to telecommunications equipment testing and fault isolation.

How to prepare: Complete a hands-on lab covering commercial switching equipment installation, circuit fault isolation, and post-repair testing.

What the civilian work involves
  • Test circuits and components of malfunctioning telecommunications equipment to isolate sources of malfunctions, using test meters, circuit diagrams, polarity probes, and other hand tools.
  • Test repaired, newly installed, or updated equipment to ensure that it functions properly and conforms to specifications, using test equipment and observation.
  • Assemble and install communication equipment such as data and telephone communication lines, wiring, switching equipment, wiring frames, power apparatus, computer systems, and networks.
Civilian tools and software (examples)
  • Cisco IOS
  • Microsoft Excel

Training & Development

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

Getting Started

  • Associate Electronics Technician (CETa)

    Provide an optional foundational electronics credential for technician applications; the program is designed for technicians with less than two years of electronics experience or training.

    For: Electrical and Electronic Engineering Technologists and Technicians

  • CompTIA Network+ · Funded

    Support preparation for the computer-network portion of telecommunications equipment work; CompTIA recommends A+ knowledge and 9 to 12 months of junior network administration or support experience.

    For: Telecommunications Equipment Installers and Repairers, Except Line Installers

Notes & Sources

Evidence for this guidance (6 documents)
  1. Army COOL MOC feed: 948B Electronic Systems Maintenance Warrant Officer

    [1] data/authority/army-codes.json entry 948B (OSD COOL feed, fetched 2026-07-25); DB rank warrant_officer, authority codeType warrant_officer

    Supports: Complex communications equipment fault diagnosis, Cryptographic equipment maintenance oversight, Repair procedure development and quality control, Electronics procurement and capability assessment, Electronics Maintenance Supervisor (O*NET 49-1011.00), Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00), Telecommunications Equipment Installers and Repairers, Except Line Installers (O*NET 49-2022.00)

  2. O*NET: First-Line Supervisors of Mechanics, Installers, and Repairers

    [2] O*NET 30.3 occupational data

    Supports: Electronics Maintenance Supervisor (O*NET 49-1011.00)

  3. O*NET: Electrical and Electronic Engineering Technologists and Technicians

    [3] O*NET 30.3 occupational data

    Supports: Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00)

  4. O*NET: Telecommunications Equipment Installers and Repairers, Except Line Installers

    [4] O*NET 30.3 occupational data

    Supports: Telecommunications Equipment Installers and Repairers, Except Line Installers (O*NET 49-2022.00)

  5. COOL credential mapping: Associate Electronics Technician (CETa)

    [5] 948B cached COOL credential feed

    Supports: Associate Electronics Technician (CETa)

    [6]ETA International: Associate Certified Electronics Technician · CETa description and CETa Exam Info; retrieved 2026-09-23

    Supports: Associate Electronics Technician (CETa)

  6. COOL credential mapping: CompTIA Network+

    [7] 948B cached COOL credential feed

    Supports: CompTIA Network+

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

    Supports: CompTIA Network+

Defense contractor jobs for 948B

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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