Navy NEC · Engineering

U57A Senior Auxiliary Engineer

Current service use not established

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

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

Overview

A Senior Auxiliary Engineer manages and supervises the operation and maintenance of shipboard auxiliary and deck systems, including amphibious assault, boat handling, underway replenishment, anchoring, and hull outfitting equipment. This engineer oversees material condition assessments, preventive and corrective maintenance, trend analysis, troubleshooting, and administrative support for auxiliary engineering personnel.

Core Skills

  • Boat-handling and anchoring equipment maintenance oversight
  • Equipment condition assessment and trend analysis
  • Preventive and corrective maintenance supervision
  • Administrative support for organizational-level maintenance

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.

First-Line Supervisors of Mechanics, Installers, and Repairers

Supervising shipboard auxiliary and deck-system maintenance, equipment condition assessments, and troubleshooting transfers directly to overseeing mechanical maintenance crews.

How to prepare: Build a maintenance-supervision portfolio showing a preventive maintenance plan, a troubleshooting example, and how completed corrective work was assessed.

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 Office software

Notes & Sources

Evidence for this guidance (2 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC U57A

    [1] NEC entry "U57A - Senior Auxiliary Engineer"; cached text line 12360; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Boat-handling and anchoring equipment maintenance oversight, Equipment condition assessment and trend analysis, Preventive and corrective maintenance supervision, Administrative support for organizational-level maintenance, First-Line Supervisors of Mechanics, Installers, and Repairers (O*NET 49-1011.00)

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

    [2] O*NET 30.3 occupational data

    Supports: First-Line Supervisors of Mechanics, Installers, and Repairers (O*NET 49-1011.00)

Defense contractor jobs for U57A

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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