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Military Occupational Specialties (MOS) - Corps of Engineers

Looking for jobs in the US Army? Military Occupational Specialties (MOS) is the US Army's term for the various jobs available to those that enlist. Take a look at the job listing below and see if any of these jobs are of interest to you.

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Click on the name of the job specialty to see additional details about that MOS and requirements to do the various jobs.

Specialty CMF Major Duties
Bridge Crewmember 21C

Command, serve, or assist as a member of a squad, section, or platoon. They provide conventional and powered bridge and rafting support for wet and dry gap crossing operations.
Carpentry and Masonry Specialist 21W

Performs general heavy carpentry, structural steel, and masonry duties, to include fabrication, erection, maintenance, and repair of rigging devices, trusses, and other structural assemblies.
Combat Engineer 21B

Supervise, serve, or assist as a member of a team, squad, section, or platoon; provide combat engineering support to combat forces; and operate Combat Engineer Vehicles (CEV), Armored Vehicle Launched Bridges (AVLB), and Armored Combat Earthmover (ACE).
Combat Engineering Senior Sergeant 21Z

Inspects and advises on bridging, rafting, and river crossing operations. Formulates and maintains construction schedules.
Concrete and Asphalt Equipment Operator 21V

Supervises or operates all equipment used in concrete and asphalt production and paving.
Construction Engineering Supervisor 21H

Supervises construction, repair, and utility services of buildings, warehouses, fixed bridges, port facilities, and petroleum pipelines, tanks, and related equipment.
Construction Equipment Supervisor 21N

Supervises construction equipment, quarry, paving, and plant equipment operations and crew maintenance of equipment.
Crane Operator 21F

Operates crawler and truckmounted cranes and crane shovels.
Diver 21D

Supervises or performs underwater reconnaissance, demolition, repair, and salvage.
Engineer Officer 12O

An Officer in the Army Corps of Engineers is responsible for providing support in full spectrum of engineer duties. Engineer Officers help the Army in building structures, developing civil works program, working with natural resources as well as providing combat support on the battlefield.
Firefighter 21M

Supervises or performs firefighting, rescue, salvage and fire protection operations.
General Construction Equipment Operator 21J

Operates air compressors and special purpose construction machines engaged in compaction, ditching, pumping, and auguring.
General Engineering Supervisor 21X

Supervises general engineering activities related to all construction and utility operations.
Heavy Construction Equipment Operator 21E

Operates crawler and wheeled tractors with dozer attachments, scoop loader, motorized grader, and towed or self-propelled scraper.
Interior Electrician 21R

Supervises or performs installation and maintenance of interior electrical systems and equipment.
Lithographer 21L

Operates and performs operator maintenance on offset duplicators/presses, copy cameras, plate making, and various types of bindery and film processing equipment. Supervises and performs all printing and binding, camera operations, layout, and plate making activities.
Plumber 21K

Installs and repairs pipe systems and fixtures, and petroleum pipeline systems.
Prime Power Production Specialist 21P

Supervises, operates, installs, and maintains electric power plant and associated auxiliary systems and equipment.
Quarrying Specialist 21G

Supervises or operates electric, pneumatic, and internal combustion powered machines used in drilling, crushing, grading, and cleaning gravel and rock, or detonates explosives to blast rock in quarries and at construction sites.
Technical Engineering Specialist 21T

Supervises or participates in construction site development to include technical investigation, surveying, drafting, development of construction plans and specifications, and performing quality control inspections.
Topographic Analyst 21U

Supervises and/or performs cartographic and terrain analysis duties; collects and processes military geographic information from remote sensed imagery, digital data, intelligence data, existing topographic products, and other collateral data sources; edits cartographic and terrain analysis products; advises command and staff officers on topographic operations and special map product planning.
Topographic Engineering Supervisor 21Y

Supervises topographic surveying, cartography and photolithography activities.
Topographic Surveyor 21S

Supervises or conducts surveys to provide control data for map making and/or artillery support and supervises or performs topographic or geodetic computations.
Transmission and Distribution Specialist 21Q

Supervises or installs and maintains electrical distribution systems; performs duties as a member of a transmission and distribution team.



Data for this section was collected from US Army documentation, About.com, and interviews with US Army personnel.