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Merchant Mariner Credential Jobs (NOW HIRING)

G&H Towing

Mariner

Corpus Christi, TX · On-site

$315.18 - $756.44/day

A Merchant Mariner Credential (MMC) with a medical certificate. * A Medical Certificate from the United Staes Coast Guard. How do I obtain the required documents? * TWIC: -industry/twic * MMC:

G&H Towing

Mariner

Corpus Christi, TX

$315.18 - $756.44/day

A Merchant Mariner Credential (MMC) with a medical certificate. * A Medical Certificate from the United Staes Coast Guard. How do I obtain the required documents? * TWIC: -industry/twic * MMC:

G&H Towing

Mariner

Galveston, TX · On-site

$315.18 - $756.44/day

A Merchant Mariner Credential (MMC) with a medical certificate. * A Medical Certificate from the United Staes Coast Guard. How do I obtain the required documents? * TWIC: -industry/twic. * MMC:

G&H Towing

Mariner

Galveston, TX · On-site

$315.18 - $756.44/day

A Merchant Mariner Credential (MMC) with a medical certificate. * A Medical Certificate from the United Staes Coast Guard. How do I obtain the required documents? * TWIC: -industry/twic. * MMC:

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How much do merchant mariner credential jobs pay per year?

As of May 28, 2026, the average yearly pay for merchant mariner credential in the United States is $52,239.00, according to ZipRecruiter salary data. Most workers in this role earn between $44,500.00 and $60,000.00 per year, depending on experience, location, and employer.

What is a Merchant Mariner Credential job?

A Merchant Mariner Credential (MMC) is a certification issued by the U.S. Coast Guard that qualifies individuals to work aboard commercial vessels. It serves as an official identification and ensures that mariners meet necessary training, medical, and security requirements. Jobs with an MMC can include deckhands, engineers, captains, and other maritime roles on cargo ships, ferries, tugboats, and other vessels. The type of work depends on the endorsements a mariner holds, such as Able Seaman or Qualified Member of the Engine Department (QMED). To obtain an MMC, applicants must complete training, pass a medical exam, and undergo a background check.

What are the key skills and qualifications needed to thrive in the Merchant Mariner Credential position, and why are they important?

To thrive with a Merchant Mariner Credential, candidates need a solid understanding of nautical operations, navigation, safety protocols, and must meet medical and physical standards as set by the U.S. Coast Guard. Familiarity with vessel communication systems, safety equipment, and compliance documentation is essential, and holding the official MMC (Merchant Mariner Credential) is mandatory. Strong teamwork, adaptability, and effective communication are crucial soft skills for working effectively in sometimes challenging maritime environments. These skills ensure not only individual safety and regulatory compliance but also contribute to the overall efficiency and safety of vessel operations.

What are the typical work environments and schedules for someone holding a Merchant Mariner Credential?

Individuals holding a Merchant Mariner Credential can expect to work in a variety of maritime environments, such as cargo ships, passenger vessels, towboats, or offshore supply vessels. Schedules often involve extended periods at sea, sometimes ranging from a few days to several months, followed by periods off duty. Work is typically organized in shifts or 'watches' to ensure 24-hour operations, and the onboard environment requires teamwork and adaptability to confined living conditions. Collaboration with crewmates and strict adherence to safety protocols are essential parts of daily responsibilities. This career offers unique travel opportunities and the experience of close-knit teamwork while facing the challenges of life at sea.
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Merchant Mariner Credential jobs near you
Infographic showing various Merchant Mariner Credential job openings in the United States as of May 2026, with employment types broken down into 2% Internship, 83% Full Time, 11% Part Time, 2% Temporary, and 2% Contract. Highlights an 93% In-person, and 7% Remote job distribution, with an average salary of $52,239 per year, or $25.1 per hour.

Mariner Credentialing Specialist

United States Coast Guard - ABILITY Job Fair

Toledo, OH • On-site

$45.41K/yr

Other

Posted 13 days ago

Job description

This vacancy is for a GS - 0963 - 6/7, Mariner Credentialing Specialist located in the Department of Homeland Security, U.S. Coast Guard, REGIONAL EXAM CENTER-TOLEDO in TOLEDO, Ohio.
Qualifications:

To qualify at the GS-07 grade level, your resume must demonstrate at least one (1) full year of specialized experience equivalent to at least the GS-06 grade level in the federal sector. Specialized experience is experience that has equipped you with the ability, skill, and knowledge to successfully perform the duties of this position and is typically in or related to this line of work. Examples of specialized experience include performing the following types of tasks on a regular basis.

  • Performing the initial review and processing of applications for various Coast Guard merchant mariner credentials, including deck and engine licenses, STCW endorsements, and certificates of registry
  • Responding to oral and written inquiries from the public and/or governmental agencies through office visits, telephone calls, electronic mail, and written correspondence
  • Drafting routine correspondence for a supervisor's signature regarding merchant mariner credentialing requirements using standard computer word-processing software
  • Applying a thorough knowledge of Federal Regulations (such as Title 46 CFR), statutes, and policies governing the issuance of U.S. Merchant Mariner's credentials to correctly and efficiently process applications

To qualify at the GS-06 grade level, your resume must demonstrate at least one (1) full year of specialized experience equivalent to at least the GS-05 grade level in the federal sector. Specialized experience is experience that has equipped you with the ability, skill, and knowledge to successfully perform the duties of this position and is typically in or related to this line of work. Examples of specialized experience include performing the following types of tasks on a regular basis.

  • Responding to inquiries from the public and/or government agencies through various channels like phone, email, and written correspondence to provide information and resolve issues related to credentialing
  • Using standard computer software to draft routine correspondence
  • Using data entry systems, such as the Merchant Mariner Licensing and Documentation (MMLD) system, to accurately record information
  • Applying state or federal laws, regulations, and policies
NOTE: All experience statements (i.e., duties, specialized experience, or related applicable assessment) copied from this announcement and pasted into your resume will not be considered as a demonstration of your qualifications for this position.
NOTE: Education cannot be substituted for experience at this grade level.
National Service Experience (i.e., volunteer experience): Experience refers to paid and unpaid experience, including volunteer work done through National Service programs (e.g., Peace Corps, AmeriCorps) and other organizations (e.g., professional, philanthropic, religious, spiritual, community, student, social). Volunteer work helps build critical competencies, knowledge, and skills and can provide valuable training and experience that translates directly to paid employment. You will receive credit for all qualifying experience, including volunteer experience.Education:This position does not have a positive education requirement. If you are including education on your resume, report only attendance and/or degrees from schools accredited by accrediting institutions recognized by the U.S. Department of Education. See Required Documents section for detail.
Only experience obtained by the closing date of this announcement will be considered.

Student Loan: Selectee(s) for this position who are newly appointed to a permanent or term position may be eligible for student loan repayment up to $10,000 (pre-tax) for one calendar year. More than one loan may be repaid if the combined repayments do not exceed $10,000. Receipt of this incentive will require a three-year service agreement.

Employment Type: OTHER

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