Marine Corps Enlisted Job Descriptions

MOS 1371 -- Combat Engineer

••• mine detector. gettys

Combat Engineers, also known as Sappers in the U.S. Army as well as foreign armies like the British and Canadian military, build, repair, and maintain buildings, roads, and power supplies within the Marine Corps.  Combat Engineers are also responsible for using explosives for construction and demolition projects. They also use heavy machinery like the Assault Breacher Vehicle to clear mine fields driven by the 1372 - Assault Breacher Vehicle Operator.


After successful completion of basic recruit training, Marines slated to become Combat Engineers will complete a specialty course dependent upon their Career Field 13 specialty.  The Combat Engineer may be assigned to an engineer battalion, an engineer support battalion, or a Marine wing support squadron.  Within the Marine Expeditionary Unit (MEU) the Combat Engineer, equipped with heavy equipment, supports ground forces by removing obstacles, building causeways, constructing bunkers, and other civil engineering roles.  Learning to use explosives for demolition of structures and to clear mines and mine fields are also a major role of the Combat Engineer.

Type of MOS : Primary Military Occupational Specialty (PMOS)

Rank Range: Master Gunnery Sergeant to Private 

Officer USMC Job Description: Combat engineers construct, alter, repair, and maintain buildings and structures; lift and move heavy objects and equipment by setting up, bracing, and utilizing rigging devices and equipment; and perform various duties incidental to the use of demolitions in construction projects and destruction of objects.

Personnel assigned this military occupational specialty (MOS) are taught carpentry and other construction skills as well as demolitions, specialized demolitions for urban breaching and land mine warfare.

Job Requirements

(1) Must possess a composite MM score of 95 or higher on the ASVAB.

MM - Mechanical Maintenance, Construction, Utility and Chemical Maintenance (hazmat) - GS+AS+MK+MC - The MM scores range from 85-105 to qualify for most jobs involving mechanics, construction, utility and hazardous materials.

(2) Complete the Basic Combat Engineer Course, Marine Corps Engineer School, Camp Lejeune, NC.

(3) Non-MOS qualified Reserve Marines unable to attend the regular formal school course may be certified for MOS 1371, as an AMOS-only, by the unit commander upon successful completion of the Alternate Training Instructional Program (ATIP) of the Marine Force Reserves. The ATIP for MOS 1371 Marines is found in Force Order 1535.1 and consists of two phases of Reserve Basic Combat Engineer Course, including a minimum of 6 months MOJT while assigned to a 1371 billet.

(4) Completion of Engineer Operations Chief Course is recommended upon promotion to GySgt.

Related Marine Corps Jobs - all within this Marine Corps Enlisted Military Occupation Specialty

After recruit training, Marines in the 1300 Engineering Occupational Field will complete a specialty course dependent on their specific MOS such as these listed below:

1316 --Metal Worker

1341 --Engineer Equipment Mechanic

1342 --Small Craft Mechanic

1343 --Assault Breacher Vehicle/Joint Assault Bridge (JAB) Mechanic

1345 --Engineer Equipment Operator - Operates engineer construction equipment used in earth moving, grading, excavation, logging, clearing and landing operations.

1349 --Engineer Equipment Chief

1361 --Engineer Assistant - Supports construction design, planning, estimating and management through various duties, including preparation of architectural or mechanical CAD drawings.

1371 - Combat Engineer - Performs demolitions, construction, mine clearing, maintenance and repair.

1372 --Assault Breacher Vehicle Operator - Operates the mine field clearing vehicle.

Once the Marine is a fully qualified with one of the above specialties, the Marine in the engineering community will be assigned to a combat engineer battalion, an engineer support battalion, or a Marine wing support squadron.

The Marine Combat Engineer Platoon supports fellow Marine infantry and other ground forces by blasting through obstacles, building bridges or tunnels, causeways, and bunkers, and by other civil engineering roles.

From construction buildings to using explosives to clear a minefield, the Marines in the Combat Engineer platoons can get it done. With mottos like “The Super Breed”, “The Other Battalion”, “One Team – One Fight”, and “Demolition is the Mission”, combat engineer battalions have a reputation of performing incredibly difficult tasks under hostile conditions and helping the ground fighters better able to take the fight to the enemy.

Related Department of Labor Occupation Codes

(1) Carpenter 

(2) Rigger 

The opportunity to participate in a formal apprenticeship program leading to receipt of a Department of Labor Certificate of Apprenticeship Completion may be available in some MOSs within Occupational Career Field 1300; refer to MCO 1550.22 for specific information concerning this program.