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Engineer Officer (21)

Construction and Engineering Army MOS Information
  • Officer
  • Active Duty
  • Army Reserve

An Officer in the Army Corps of Engineers is responsible for providing support in a full spectrum of engineering duties. Engineer Officers help the Army and the Nation in building structures, developing civil works programs, working with natural resources as well as providing combat support on the battlefield.

Combat Engineer Officer
Combat Engineer Officers have the engineering skills to support combat missions which can include: bridge building and destruction; minefield emplacement and reduction; and other tasks requiring specialized engineering skills and equipment.

Construction Engineer Officer
Construction Engineer Officers build and maintain roads, airfields and other facilities that support combat operations. During peacetime these Officers help in building schools and other structures.

Topographic Engineer Officer
Topographic Engineer Officers know how to operate terrain depiction equipment and give analyses that give Maneuver Commanders an edge in battle.

The responsibilities of an Engineer Lieutenant may include:

  • Planning and executing engineering missions, both combat and construction
  • Understanding tactical decision making and the Engineer’s role as a leader in a combined arms or joint-force environment
  • Coordinating employment of Engineer Soldiers at all levels of command, from platoon to battalion and higher, in U.S. and multi-national operations.


Engineer Officer training includes completion of the Engineer Officer Basic Course (EOBC), where you will learn leadership skills, tactics, maintenance and operational aspects of vehicles and tools used in the Army Corps of Engineers.

Helpful Skills:

Being a leader in the Army requires certain qualities. A leader exhibits self-discipline, initiative, confidence and intelligence. They are physically fit and can perform under physical and mental pressures. Leaders make decisions quickly, always focusing on completing the mission successfully, and show respect for their subordinates and other military officers. Leaders lead from the front and adjust to environments that are always changing. They are judged by their ability to make decisions on their own and bear ultimate moral responsibility for those decisions.

Advanced Responsibilities:

Engineer Officers can continue in the Operations career field, serving in the Army Corps of Engineers at ever increasing levels of leadership and responsibility.

Responsibilities of an Engineer Captain may include:

  • Commanding and controlling company-sized Engineer units (200-300 Soldiers).
  • Coordinating employment of Engineer Soldiers at all levels of command, from company to division level and beyond, in U.S. and multi-national operations.
  • Developing doctrine, organizations and equipment for unique Engineer missions.
  • Instructing Engineer skills at service schools and combat training centers.
  • Serving as an Engineer advisor to other units, including Army National Guard and U.S. Army Reserve organizations.

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