Intro
Discover 5 Army Engineer MOS jobs, including construction, combat, and geospatial engineering roles, offering exciting careers in military engineering, infrastructure development, and technical expertise.
The Army Engineer Military Occupational Specialty (MOS) is a crucial part of the US Army, responsible for a wide range of tasks that ensure the success of military operations. Within the Army Engineer MOS, there are several jobs that are essential to the Army's mission. Here, we will explore five Army Engineer MOS jobs that are in high demand and play a critical role in the Army's operations.
The Army Engineer MOS is a diverse and challenging field that requires individuals to be skilled in a variety of areas, including construction, demolition, and combat engineering. Army Engineers are responsible for building and maintaining infrastructure, such as roads, bridges, and buildings, as well as conducting reconnaissance and surveillance to gather intelligence on enemy positions. They also play a critical role in combat operations, using their skills to breach obstacles and clear routes for advancing troops.
One of the most critical aspects of the Army Engineer MOS is the ability to work in a fast-paced and dynamic environment. Army Engineers must be able to think on their feet and make quick decisions in high-stress situations. They must also be able to work effectively in teams, communicating clearly and concisely with other soldiers to achieve a common goal.
Introduction to Army Engineer MOS Jobs

The Army Engineer MOS is divided into several different jobs, each with its own unique responsibilities and requirements. Some of the most in-demand Army Engineer MOS jobs include 12B Combat Engineer, 12D Diver, 12G Quarrying Specialist, 12K Plumber, and 12N Horizontal Construction Engineer. These jobs are essential to the Army's mission and require individuals to have a strong foundation in engineering principles, as well as the ability to work effectively in a variety of environments.
12B Combat Engineer

The 12B Combat Engineer is a critical part of the Army Engineer MOS. Combat Engineers are responsible for conducting reconnaissance and surveillance to gather intelligence on enemy positions, as well as breaching obstacles and clearing routes for advancing troops. They use a variety of tools and techniques, including explosives, demolitions, and heavy equipment, to achieve their objectives. Combat Engineers must be able to think on their feet and make quick decisions in high-stress situations, making them an essential part of the Army's combat operations.
Responsibilities of a 12B Combat Engineer
- Conduct reconnaissance and surveillance to gather intelligence on enemy positions
- Breach obstacles and clear routes for advancing troops
- Use explosives, demolitions, and heavy equipment to achieve objectives
- Work effectively in teams to communicate clearly and concisely with other soldiers
- Think on their feet and make quick decisions in high-stress situations
12D Diver

The 12D Diver is another critical part of the Army Engineer MOS. Divers are responsible for conducting underwater operations, including reconnaissance, demolition, and salvage. They use a variety of specialized equipment, including scuba gear and underwater tools, to achieve their objectives. Divers must be able to work effectively in a variety of underwater environments, including rivers, lakes, and oceans, and must be able to think clearly and make quick decisions in high-stress situations.
Responsibilities of a 12D Diver
- Conduct underwater operations, including reconnaissance, demolition, and salvage
- Use specialized equipment, including scuba gear and underwater tools, to achieve objectives
- Work effectively in a variety of underwater environments, including rivers, lakes, and oceans
- Think clearly and make quick decisions in high-stress situations
- Communicate clearly and concisely with other soldiers to achieve a common goal
12G Quarrying Specialist

The 12G Quarrying Specialist is a critical part of the Army Engineer MOS. Quarrying Specialists are responsible for extracting and processing stone, sand, and gravel for use in construction projects. They use a variety of heavy equipment, including bulldozers, excavators, and crushers, to achieve their objectives. Quarrying Specialists must be able to work effectively in a variety of environments, including quarries and construction sites, and must be able to think clearly and make quick decisions in high-stress situations.
Responsibilities of a 12G Quarrying Specialist
- Extract and process stone, sand, and gravel for use in construction projects
- Use heavy equipment, including bulldozers, excavators, and crushers, to achieve objectives
- Work effectively in a variety of environments, including quarries and construction sites
- Think clearly and make quick decisions in high-stress situations
- Communicate clearly and concisely with other soldiers to achieve a common goal
12K Plumber

The 12K Plumber is another critical part of the Army Engineer MOS. Plumbers are responsible for installing, maintaining, and repairing plumbing systems, including pipes, fixtures, and appliances. They use a variety of tools and techniques, including welding, soldering, and pipefitting, to achieve their objectives. Plumbers must be able to work effectively in a variety of environments, including barracks, hospitals, and other military facilities, and must be able to think clearly and make quick decisions in high-stress situations.
Responsibilities of a 12K Plumber
- Install, maintain, and repair plumbing systems, including pipes, fixtures, and appliances
- Use tools and techniques, including welding, soldering, and pipefitting, to achieve objectives
- Work effectively in a variety of environments, including barracks, hospitals, and other military facilities
- Think clearly and make quick decisions in high-stress situations
- Communicate clearly and concisely with other soldiers to achieve a common goal
12N Horizontal Construction Engineer

The 12N Horizontal Construction Engineer is a critical part of the Army Engineer MOS. Horizontal Construction Engineers are responsible for building and maintaining roads, bridges, and other infrastructure. They use a variety of heavy equipment, including bulldozers, excavators, and cranes, to achieve their objectives. Horizontal Construction Engineers must be able to work effectively in a variety of environments, including construction sites and combat zones, and must be able to think clearly and make quick decisions in high-stress situations.
Responsibilities of a 12N Horizontal Construction Engineer
- Build and maintain roads, bridges, and other infrastructure
- Use heavy equipment, including bulldozers, excavators, and cranes, to achieve objectives
- Work effectively in a variety of environments, including construction sites and combat zones
- Think clearly and make quick decisions in high-stress situations
- Communicate clearly and concisely with other soldiers to achieve a common goal
Army Engineer MOS Image Gallery










What is the Army Engineer MOS?
+The Army Engineer MOS is a Military Occupational Specialty that is responsible for a wide range of tasks, including construction, demolition, and combat engineering.
What are the different types of Army Engineer MOS jobs?
+There are several different types of Army Engineer MOS jobs, including 12B Combat Engineer, 12D Diver, 12G Quarrying Specialist, 12K Plumber, and 12N Horizontal Construction Engineer.
What are the responsibilities of a 12B Combat Engineer?
+A 12B Combat Engineer is responsible for conducting reconnaissance and surveillance to gather intelligence on enemy positions, as well as breaching obstacles and clearing routes for advancing troops.
What are the responsibilities of a 12D Diver?
+A 12D Diver is responsible for conducting underwater operations, including reconnaissance, demolition, and salvage.
What are the responsibilities of a 12G Quarrying Specialist?
+A 12G Quarrying Specialist is responsible for extracting and processing stone, sand, and gravel for use in construction projects.
In conclusion, the Army Engineer MOS is a critical part of the US Army, responsible for a wide range of tasks that ensure the success of military operations. The five Army Engineer MOS jobs discussed in this article - 12B Combat Engineer, 12D Diver, 12G Quarrying Specialist, 12K Plumber, and 12N Horizontal Construction Engineer - are in high demand and play a critical role in the Army's mission. If you are interested in pursuing a career in the Army Engineer MOS, we encourage you to learn more about these exciting and challenging jobs. Share this article with others who may be interested in learning more about the Army Engineer MOS, and leave a comment below with any questions or feedback.