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Temporary 4Th Class Marine Engineer Jobs (NOW HIRING)

Calcarea, Inc.

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Marine Engineer

San Pedro, CA · On-site

$150K - $200K/yr

... Class societies for approval and certification; and (iii) providing marine engineering leadership and support for at sea operations, including physical installation, operation, repair, and ...

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Calcarea, Inc.

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Marine Engineer

San Pedro, CA · On-site

$150K - $200K/yr

... Class societies for approval and certification; and (iii) providing marine engineering leadership and support for at sea operations, including physical installation, operation, repair, and ...

New

Calcarea, Inc.

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Marine Engineer

San Pedro, CA · On-site

$150K - $200K/yr

... Class societies for approval and certification; and (iii) providing marine engineering leadership and support for at sea operations, including physical installation, operation, repair, and ...

New

Ocean Atomics LLC

Principal Marine Engineer

$185K - $235K/yr

... through class approval and operational deployment. You will define the physical, thermal, and ... Lead the marine engineering of the Test and Training Platform (TTP) and follow-on products across ...

Oracle

Senior Marine Engineer

Seattle, WA · On-site

$119K - $163K/yr

Detailed The Senior Marine Engineer will be responsible for ensuring safe, efficient, and compliant ... Experience working on Panamax or equivalent class vessels preferred * Strong understanding of ...

Oracle

Senior Marine Engineer

Seattle, WA · On-site

$119K - $163K/yr

Detailed The Senior Marine Engineer will be responsible for ensuring safe, efficient, and compliant ... Experience working on Panamax or equivalent class vessels preferred * Strong understanding of ...

MILLERS LAUNCH INC

Marine Diesel Mechanic

Staten Island, NY · On-site

$27 - $45/hr

... engineering a plus Minimum 5 years mechanic work experience Must be able to work on land and at sea Must be able to obtain a TWIC Card Company Description Providing First-Class Marine Service Since ...

The Vision Companies

Senior Marine Engineer

Seattle, WA · On-site

$119K - $163K/yr

Detailed The Senior Marine Engineer will be responsible for ensuring safe, efficient, and compliant ... Experience working on Panamax or equivalent class vessels preferred * Strong understanding of ...

MILLERS TUG AND BARGE INC.

Port Engineer

New York, NY · On-site

$90K - $130K/yr

The Port Engineer will play a key role in planning and executing maintenance projects, supervising ... Company Description Providing First-Class Marine Service Since 1977. Miller's Launch and its ...

Oracle

Senior Marine Engineer

Seattle, WA

$119K - $163K/yr

Detailed The Senior Marine Engineer will be responsible for ensuring safe, efficient, and compliant ... Experience working on Panamax or equivalent class vessels preferred * Strong understanding of ...

Mars

Senior Marine Engineer

Seattle, WA · On-site

$119K - $163K/yr

Detailed The Senior Marine Engineer will be responsible for ensuring safe, efficient, and compliant ... Experience working on Panamax or equivalent class vessels preferred * Strong understanding of ...

Emprise Corporation

Senior Marine Engineer

Chesapeake, VA · On-site

$101K - $139K/yr

Manage assigned vessels class Life Cycle Plans and develop short, mid, and long term maintenance ... Bachelor's Degree in Marine Engineering, Naval Architecture, Electrical Engineering, or Mechanical ...

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Temporary 4Th Class Marine Engineer information

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How much do temporary 4th class marine engineer jobs pay per hour?

As of Aug 27, 2026, the average hourly pay for temporary 4th class marine engineer in the United States is $42.93, according to ZipRecruiter salary data. Most workers in this role earn between $31.97 and $51.44 per hour, depending on experience, location, and employer.

What is a temporary 4th class marine engineer?

Temporary 4th Class Marine Engineers are licensed professionals who work on marine vessels in an entry-level engineering capacity, typically holding a temporary or provisional certification. They assist with operating, maintaining, and repairing the ship’s machinery and engine systems. The '4th Class' designation refers to the level of marine engineer certification, usually indicating the starting point in a marine engineering career. Temporary status is often granted to those who are awaiting full certification or gaining required sea time. Their duties are performed under the supervision of more senior engineers.

What types of vessels and machinery does a temporary 4th class marine engineer typically work with, and how does this affect daily responsibilities?

As a Temporary 4th Class Marine Engineer, you're likely to work on a range of vessels, such as cargo ships, ferries, or offshore supply vessels, depending on the employer. Your daily responsibilities often include monitoring and maintaining engines, auxiliary systems, and safety equipment, as well as performing routine inspections and assisting with repairs. The specific machinery you work with can vary, but commonly includes diesel engines, pumps, generators, and HVAC systems. Adapting quickly to new equipment and operational protocols is essential, as assignments may change frequently in temporary roles.

What are the key skills and qualifications needed to thrive as a temporary 4th class marine engineer, and why are they important?

To succeed as a Temporary 4th Class Marine Engineer, you generally need a 4th Class Marine Engineer Certificate of Competency and a solid understanding of marine engine operations and maintenance. Familiarity with engine room management systems, safety protocols, and regulatory compliance documentation is often required. Strong problem-solving skills, attention to detail, and the ability to work effectively both independently and as part of a team are valuable soft skills. These competencies ensure safe and efficient vessel operations, compliance with maritime regulations, and the ability to respond promptly to technical challenges at sea.

What is the difference between Temporary 4Th Class Marine Engineer vs 3rd Class Marine Engineer?

AspectTemporary 4Th Class Marine Engineer3rd Class Marine Engineer
CertificationsRequires a 4th Class Marine Engineer LicenseRequires a 3rd Class Marine Engineer License
Work EnvironmentEntry-level, onboard ships or in trainingMore experienced, handling larger engines and systems
Employer UsageOften hired temporarily for specific tasks or trainingFull-time, permanent positions on vessels

The main difference between a Temporary 4Th Class Marine Engineer and a 3rd Class Marine Engineer lies in experience and certification level. The 4th Class is typically an entry-level or trainee position requiring a 4th Class license, while the 3rd Class is more experienced, requiring a 3rd Class license. The 4th Class often works in training or temporary roles, whereas the 3rd Class handles more complex systems and responsibilities onboard ships.

What cities are hiring for Temporary 4Th Class Marine Engineer jobs?

Cities with the most Temporary 4Th Class Marine Engineer job openings:

What are the most commonly searched types of 4Th Class Marine Engineer jobs?

The most popular types of 4Th Class Marine Engineer jobs are:

What states have the most Temporary 4Th Class Marine Engineer jobs?

States with the most job openings for Temporary 4Th Class Marine Engineer jobs include:

Temporary 4Th Class Marine Engineer jobs near you

Marine Engineer

San Pedro, CA • On-site

Calcarea, Inc.
See more jobs at Calcarea, Inc.external

$150K - $200K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted yesterday

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Job description

The Role

Calcarea is seeking a hands-on Marine Engineer for an 8-month contract position to play a central role in delivering our first full-scale vessel-based deployment. This individual will collaborate closely with the CTO, founders, external parties, and the rest of the technical team, supporting the transition from technical development into real-world implementation.


Responsibilities will include: (i) hands-on engineering support for our shore-based AWL testing campaign; (ii) leading and supporting engineering and integration of our system with marine engineering firms and Class societies for approval and certification; and (iii) providing marine engineering leadership and support for at sea operations, including physical installation, operation, repair, and decommissioning of the system.

This is a highly hands-on position for someone excited by first-of-a-kind hardware, dynamic operating environments, and the challenge of getting a novel physical system installed, commissioned, and operating successfully in the field.


This is initially an 8-month contract position but may be extended depending on company needs. The first several months of the role will be based in-person in Los Angeles/Long Beach, CA, followed by several months of rotations onboard a bulk shipping vessel. Applications will be reviewed on a rolling basis until the position is filled.


Qualifications

  • Degree in marine or mechanical engineering, naval architecture or a related technical discipline with 3-5 years of experience.
  • Track record of success in a hands-on (wrench turning) role, including commissioning, startup, supporting plant operations, and instrumentation.
  • Experience in maritime systems, ship-board integration, pilot plants, industrial equipment, process systems, or first-of-a-kind hardware deployments is highly beneficial. 
  • Comfortable working in fast-paced startup environments with evolving priorities and limited structure. 
  • Excellent communication and organizational skills. 
  • Ability and willingness to commit to a multi-month continuous deployment at sea, living and working onboard a commercial vessel.
  • Practical, execution-oriented mindset with a strong bias toward action and problem solving.  
  • A safety-oriented approach to work, including use of PPE and performing work in accordance with safety procedures and regulatory requirements.

Company Description

Calcarea is at the forefront of decarbonizing the global economy, starting with the shipping industry. Our mission is to leverage Accelerated Weathering of Limestone (AWL) to safely and permanently sequester CO2 in the ocean as bicarbonate ions. We have developed an innovative system to apply AWL technology directly on ships, and over time, we also aim to develop a new category of vessel specifically designed around large-scale onboard carbon conversion.