Marine Corps Job: MOS 2629 Signals Intelligence Analyst

These Marines listen to transmissions for possible intel information

U.S. Air Force Senior Airman Daniel Ullery, 488th Intelligence Squadron multimode systems operator from Eva, Ala., operates a ground data processing system Dec. 6, 2013
••• Airman 1st Class Kyla Gifford/Released/mildenhall.af.mil/ 

In the Marine Corps, just like in other branches of the U.S. armed services, Signal Intelligence (SIGINT) Analysts coordinate and analyze strategic and tactical intelligence. They listen to radio and other broadcasts to determine enemy positions, and figure out when and where high-profile targets may be located.

This is a crucially important part of the Marines' strategic planning operations, and it requires people who can focus for long periods of time and can distinguish valid intel from chatter.

The Marine Corps considers this job a  necessary military occupational specialty (NMOS). That means it has a prerequisite primary MOS as well as specific training or skills. It's open to Marines between the ranks of master gunnery sergeant and corporal.

The Marines categorize this job as MOS 2629.

Duties of Marine Corps Signals Intelligence Analysts

As with other members of the SIGINT team, these Marines listen to intercepted messages and work to identify the valid intelligence from the noise. They help place and camouflage surveillance equipment, and make sure all the equipment is working as intended.

Signals intelligence analysts are responsible for all facets of signals intelligence analysis. They supervise communications security operations, develop and maintain records on technical aspects of target emitters, as well as develop and maintain communications order of battle files, situation maps  and other related SIGINT files.

While this may sound like a job with a lot of high-tech spy responsibilities, it does involve a lot of difficult, tedious work. These analysts have to prepare and issue a variety of reports: intelligence reports, technical reports, summaries and the like. They may need to attend and address senior officers at SIGINT briefings.

Qualifying for MOS 2629

Marines in this job need a score of 100 or higher on the general technical (GT) segment of the Armed Services Vocational Aptitude Battery (ASVAB) tests.

This MOS is typically assigned to Marines who already hold  MOS 2621, Special Communications Collection Analyst, MOS 267X, Cryptologic Linguist or MOS 2631 Electronic Intelligence Intercept Operator/Analyst. This is not an entry-level job as noted above.

As part of the preparation for this MOS, Marines need to complete the Marine Analysis and Reporting Course at the Marine Detachment at Goodfellow Air Force Base in San Angelo, Texas.

Here they learn the details of signal intelligence gathering and analysis, including traffic analysis, cryptanalysis, battlespace preparation and SIGINT reporting. They're trained on the latest analysis and reporting software.

If you're interested in working as a SIGINT analyst in the Marines, you'll need to be able to qualify for a top secret security clearance from the Department of Defense. You should already have received this clearance for your prior MOS, but if more than five years have passed, you may be subject to reinvestigation to re-qualify. This will involve fingerprinting and another set of background checks of finances and character.

You also must be eligible for access to Sensitive Compartmented Information (SCI) based on a Single Scope Background Investigation (SSBI). Again, this will depend on when your prior investigation was conducted, but you may need to undergo this process again.