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Mission Areas

The Secretary of The Department of Homeland Security oversees the third largest Cabinet Department and leads our nation's efforts to secure our country from terrorism to natural disasters. DHS has a vital mission to secure the nation from the many threats we face. This requires the dedication of more than 250,000 employees, in jobs that range from aviation and border security, to emergency response, from cybersecurity analyst to chemical facility inspector. DHS has five distinct mission areas related to securing the homeland, which includes the largest law enforcement population in the Federal Government.

Law enforcement careers involve protecting the President, Vice President, their families, heads of state and other designated individuals. These careers also involve securing the nation’s borders, interagency law enforcement training, and enforcing economic, transportation and infrastructure security. Related components:

Immigration and travel security careers involve protecting the nation’s transportation systems, as well as overseeing lawful immigration to the U.S. Related components:

Prevention and response careers protect the public, environment and U.S. economic and security interests. These careers also provide preparedness, protection, response, recovery and mitigation to reduce loss of life and property and protect the nation from all hazards. Related components:

Mission support careers involve the following fields: medical, human resources, facilities, budget, procurement, science and technology, training, intelligence, public affairs, communication, planning and coordination, detection, civil rights, fraud detection and more. Related components:

Cybersecurity careers help build the national capacity to defend against cyber attacks and work with the federal government to provide cybersecurity tools, incident response services and assessment capabilities to safeguard the ‘.gov’ networks that support the essential operations of partner departments and agencies.

Learn more about the DHS Cybersecurity Service and view descriptions for Department components and agencies.

Mission Critical Occupations are occupations that most directly affect the Department's mission success. Priority mission critical occupations listed below are identified as having the greatest impact on the Department’s goals and objectives

Occupational Series Component Job Title Responsibilities
0083 USSS Police (Uniformed Division) Protect facilities and venues secured for U.S. Secret Service protectees. Mandated by law to provide physical security for the White House Complex and the Vice President’s residence at the Naval Observatory. It also provides security for the Treasury Department building and foreign diplomatic missions in Washington, D.C.
0089 FEMA Emergency Management Specialist Involves preparing for and carrying out all emergency functions (excluding primary military forces functions) to mitigate, prepare for, respond to, and recover from emergencies and disasters; and to aid victims suffering from injury or damage resulting from disaster caused by natural and man-made hazards.
1801 CBP Marine Interdiction Agent Perform marine law enforcement operations involving the detection, prevention, interdiction and apprehension of terrorist, terrorist weapons and other contraband and persons from illegally entering or attacking the United States.
1801 FLETC Law Enforcement Instructor Requires extensive Law Enforcement experience. Instructors teach a variety of courses and specialty areas such as: behavioral sciences, computer and financial investigations, counter terrorism, driver training, enforcement operations, firearms, forensics and investigative technologies, legal, marine training, and physical techniques.
1801 ICE Deportation Officer Uphold U.S. immigration law at, within, and beyond our borders against those who present a danger to our national security, are a threat to public safety, or who otherwise undermine the integrity of our immigration system.
1801 TSA Federal Air Marshal Detects, deters and defeats hostile acts against aviation. Federal Air Marshals are armed federal law enforcement officers deployed on passenger flights worldwide to protect airline passengers and crew against the risk of criminal and terrorist violence.
1802 TSA Transportation Security Officer Conduct security screening of passengers, baggage and cargo at airports to prevent any deadly or dangerous objects from being transported onto an aircraft.
1811 ICE Criminal Investigator Protect the United States against terrorist and other criminal organizations that threaten our safety and national security. Also targets transnational criminal enterprises that seek to exploit America's legitimate trade, travel, and financial systems.
1811 USSS Criminal Investigator Special agents investigate violations of laws relating to financial crimes such as credit card and access device fraud, as well as computer-based attacks on the nation’s banking and telecommunications. In the field of protection Secret Service special agents develop and implement innovative strategies to mitigate threats to our nation’s leaders.
1881/2181 CBP Air Interdiction Agent Perform air law enforcement operations involving the detection, prevention, interdiction, and apprehension of terrorist, terrorist weapons and other contraband and persons from illegally entering or attacking the United States.
1895 CBP Customs and Border Protection Officer Responsible for border security, including anti-terrorism, immigration, anti-smuggling, trade compliance, and agriculture protection at U.S. ports of entry.
1896 CBP Border Patrol Agent Prevent terrorists and terrorists’ weapons from entering the United States by securing our land borders and coastal waters between ports of entry.
Multi-Series All Components Cybersecurity The Cyber workforce encompasses the skills required to:
  1. Build, secure, operate, defend, and protect technology, data, and resources
  2. Conduct related intelligence activities
  3. Enable future operations
  4. Project power in or through cyberspace
These jobs are comprised of the following skill communities:
  1. IT
  2. Cybersecurity
  3. Cyber Effects
  4. Intel (Cyber)
  5. Cross Functional
Last Updated: 02/04/2022
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