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3Rd Assistant Marine Engineer Jobs (NOW HIRING)

$85K - $98K/yr

... * Assist Senior Mechanical Engineers in design, development, and evaluation of the operation of marine vessels, ship machinery, and related equipment. * Support the US Coast Guard by reviewing third ...

Marine Engineer

Jersey City, NJ · On-site

$89K - $110K/yr

Conduct oil changes, filter replacements, and fluid inspections * Assist with troubleshooting ... Familiarity with marine electrical systems preferred * Mechanical aptitude and troubleshooting ...

Showing results 21-40

3rd Assistant Marine Engineer information

See salary details

$33K

$88.8K

$134.5K

How much do 3rd assistant marine engineer jobs pay per year?

As of Sep 14, 2026, the average yearly pay for 3rd assistant marine engineer in the United States is $88,754.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,500.00 and $104,500.00 per year, depending on experience, location, and employer.

What is a 3rd assistant marine engineer?

A 3rd Assistant Marine Engineer, also known as a Fourth Engineer, is an entry-level licensed engineering officer on a merchant ship. They are responsible for operating, maintaining, and repairing the ship's engine room machinery and other mechanical systems under the supervision of senior engineers. Their duties include monitoring engine performance, conducting routine maintenance, and responding to emergencies. This role is critical in ensuring the safe and efficient operation of the vessel.

What are the main responsibilities of a 3rd assistant marine engineer during a typical voyage?

As a 3rd Assistant Marine Engineer, you'll play a crucial role in maintaining and operating the ship's engine room and associated mechanical systems. Your daily tasks often include monitoring engine performance, conducting routine maintenance, and assisting with repairs under the supervision of senior engineers. You'll also participate in watchkeeping duties, ensuring the safe and efficient operation of all machinery during your assigned shifts. Collaboration with the engineering team and clear communication with the deck department are essential, especially during equipment troubleshooting or emergency situations.

What are the key skills and qualifications needed to thrive as a 3rd assistant marine engineer, and why are they important?

To thrive as a 3rd Assistant Marine Engineer, you need a solid grounding in marine engineering principles, mechanical systems, and a valid STCW engineering license or equivalent maritime certification. Familiarity with engine room systems, maintenance management software, and compliance with international maritime regulations is typically required. Strong problem-solving abilities, teamwork, and attention to detail are critical soft skills for this role. These skills and qualifications are essential to ensure the safe and efficient operation of a vessel’s machinery and compliance with maritime safety standards.

What is the difference between 3Rd Assistant Marine Engineer vs 2Nd Assistant Marine Engineer?

Aspect3Rd Assistant Marine Engineer2Nd Assistant Marine Engineer
CertificationsEngine Cadet or Trainee Certification, Basic Marine EngineeringEngine Room Rating Certification, Advanced Marine Engineering
Work EnvironmentAssists in routine engine room tasks, supervised by senior engineersPerforms more complex maintenance, supports senior engineers
ResponsibilitiesAssist with engine operations, maintenance, and repairsHandle specific engine systems, troubleshoot issues

The main difference between a 3Rd Assistant Marine Engineer and a 2Nd Assistant Marine Engineer lies in experience, responsibilities, and certification levels. The 3Rd Assistant typically assists with basic engine room tasks under supervision, while the 2Nd Assistant takes on more complex duties and has advanced certifications. Both roles are essential in the engine room team, with the 2Nd Assistant having greater technical responsibilities and experience.

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What states have the most 3Rd Assistant Marine Engineer jobs?

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What are popular job titles related to 3Rd Assistant Marine Engineer jobs?

For 3Rd Assistant Marine Engineer jobs, the most frequently searched job titles are:

Infographic showing various 3Rd Assistant Marine Engineer job openings in the United States as of September 2026, with employment types broken down into 96% Full Time, and 4% Part Time. Highlights an 86% In-person, 4% Hybrid, and 10% Remote job distribution, with an average salary of $88,754 per year, or $42.7 per hour.

Third Assistant Engineer

Iselin, NJ • On-site

Woods Hole Oceanographic Institution
Scientific Research and Development Services • 501 - 1,000 employees

$39.38/hr

Full-time

Posted 26 days ago


Job description

Job Summary
Woods Hole Oceanographic Institution is currently searching for a Third Assistant Engineer. Reporting to Chief Engineer; is responsible for repair of electrical equiptment, the proper operation of the main propulsion and ship's service generators and, during watch, of the main engines; also supervises un-licensed watch stander.
Job Description
Checks cleaning, lubrication, and routine maintenance of all machinery and electrical equipment. For the R/V Atlantis also included is maintenance of the Launch and Recovery System (LARS) for the Alvin. Cleans engine room bilges, strainers in lubricating system, and all water pumps, tanks, and connected systems. Ensures safety devices are in proper working condition. Assists, while in port, with supervision, maintenance, and repair of engine room equipment and spaces, and in loading freshwater and bunkers. Keeps a log of all watch operations and conditions, including unusual occurrences and emergency signals. Proficiency in the following: Diesel engines, electrical maintenance and troubleshooting, hydraulics, reading of both hydraulic and electrical schematics, HVAC equipment, and air compressors. Stands engine room watch, supervises Oiler, and ensures watches are stood properly and orders carried out. Performs other duties as required.
Bachelor's degree from an accredited sea service academy and one year sea duty as an engineering officer; in the absence of a formal degree, equivalent work experience.
Candidates must possess computer literacy in the use of word-processing, inventory and database management, and electronic mail programs. Prefer Third Assistant Engineer experience on similar research vessel. Candidates must have a high level of training as evidenced by a U.S. Coast Guard license, preferably Third Assistant Engineer Unlimited Horsepower, Motor Vessels. Minimum licensing for R/V Neil Armstrong and the R/V Atlantis requires Third Assistant Engineer unlimited HP, Motor Vessels.
In addition, all licensed officers must have all applicable training as required by the Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW 95) and possess a valid U.S. Coast Guard Merchant Mariners Credentials. Candidates must have good communication and personnel management skills, an in-depth understanding of the proper operation and maintenance of ship's engines and related equipment, and demonstrate good safety practices and procedures. Must hold an Unexpired (STCW Expiration date) USCG med Certificate. Must be able to pass a DOT Pre-employment drug screen.
Additional Job Requirements
Hourly rate is $39.38. The hourly rate provided for this position reflects the set base pay for new hires. Annual compensation will be based on this hourly rate and the number of hours worked, in accordance with applicable wage and hour laws. In addition to hourly pay, eligible employees may also receive a comprehensive benefits package.All marine positions have essential functions that personnel must be able to perform, minimum physical capacities and requirements that all personnel must meet, and working conditions that may be considered hazardous. Working at least 8 hours per day and, at times in excess of 12 hours per day, 7 days per week. Work at sea for three to five months continuously. Live and work in cramped quarters, frequently in bad weather and with violent ship motion. Pass examinations for visual acuity, color sense, and hearing as established in Title 46 CFR Parts 10 and 12, and pass a physical evaluation as described in the enclosed Navigation and Vessel Inspection Articles 6-89. Climb steep and vertical ladders, and enter and exit compartments through hatches, doors, and sills up to two feet high. Participate in emergency drills and in launching lifeboats and life rafts. Perform physical labor, climb and handle moderate weights and equipment over 50 pounds. Physical Capability Example of Essential Function Balance Work in confined and unstable areas. Bend, kneel, squat Clean, maintain, and inspect equipment. Climb Reach work areas, equipment and stores by ladder and stairs. Crawl Crawl through bilge pockets, and under ladders and winch beds. Feel Touch objects: where sight is limited. Finger Manipulate nuts, bolts, tools, and cleaning gear. Handle Handle equipment and stores with sure grip. Hear, talk Communicate with people. Lift, carry Load stores over 50 pounds. Push, pull Move equipment over 50 pounds. Reach Up, over, and under equipment and stores. See Read labels, menus, logs, charts, and gauges in poor lighting. Sit Operate crane, Avon, lifeboat, and life raft. Stand Work on equipment. Walk Perform rounds at sea. Write Maintain logs. Work Condition Example of Hazardous Area/Duty Confined areas Store rooms, engine spaces, and tanks Potential allergens and irritants Fuels, solvents, cleaners, dust, fumes, smoke, and gases Adverse weather On deck in rough seas during equipment maintenance Extreme temperatures On deck in tropics and high latitudes; in engine room Potential hazards Being at sea; slippery and uneven surfaces; moving parts and objects; climbing ladders; and working aloft Noise Constant and loud engine room noise, blowers, exhaust fans Schedule Protracted and irregular working hours Vibrations Ship's engines and chipping hammer.
WHOI accepts applications on a rolling basis - applications will be reviewed as they are received, and we encourage you to submit your application as soon as possible to ensure full consideration. While we will continue to review applications until the position is filled, and early applicants may have an advantage in the selection process.
EEO Statement
Woods Hole Oceanographic Institution (WHOI) provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.