1

3Rd Assistant Jobs (NOW HIRING)

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 ...

Complete company training requirements for the 3rd Assistant Engineer job level as per the training matrix, including in local/regulatory requirements. * If applicable, the duties and ...

next page

Showing results 1-20

3rd Assistant information

What is a 3rd assistant?

A 3rd Assistant, often referred to as a Third Assistant Engineer or Third Mate depending on the department, is a junior officer on a ship responsible for assisting senior officers with the operation, maintenance, and safety of the vessel. In engineering, they help monitor machinery and conduct routine maintenance, while in the deck department, they assist with navigation, watchkeeping, and cargo operations. This position is typically an entry-level officer role for those starting their career at sea after obtaining the necessary certifications.

What are the typical responsibilities of a 3rd assistant on a ship?

As a 3rd Assistant, also known as a Third Mate, you are responsible for maintaining navigational watches, ensuring the safe operation of the vessel, and assisting with cargo operations. You will work closely with other deck officers and crew to monitor safety equipment, maintain logbooks, and conduct regular inspections. This role often serves as a stepping stone for career advancement, providing hands-on experience in navigation, ship management, and leadership under the guidance of senior officers.

What are the key skills and qualifications needed to thrive as a 3rd assistant?

To thrive as a 3rd Assistant (commonly in maritime or film industries), you generally need a relevant educational background, such as maritime certifications or film production coursework, and a basic understanding of operations and safety protocols. Familiarity with industry-specific tools—like navigational equipment for maritime roles or scheduling and communication software for film—is essential. Strong organizational skills, attention to detail, and the ability to work well in a team set outstanding candidates apart. These skills are vital to ensure smooth operations, support senior staff, and contribute to the overall success of projects or voyages.

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

Aspect3Rd Assistant2Nd Assistant
Required CredentialsHigh school diploma, relevant certificationsHigh school diploma, additional certifications often preferred
Work EnvironmentAssistants work in offices, clinics, or service settingsSimilar environments, often with more direct responsibilities
Employer & Industry UsageCommon in healthcare, legal, administrative sectorsUsed in similar industries, with increased responsibilities
Comparison FocusEntry-level support roleMore experienced support role with additional duties

The 3Rd Assistant typically performs foundational support tasks, while the 2Nd Assistant handles more complex responsibilities. The main difference lies in experience level and scope of duties, with the 2Nd Assistant often requiring more certifications and offering greater support within the team.

What does a 3rd assistant engineer do?

A 3rd assistant engineer is responsible for supporting the engineering team by performing routine maintenance, monitoring equipment, and assisting with repairs on ships or industrial facilities. They typically work under the supervision of senior engineers and need relevant certifications such as a third assistant engineer license. The role often involves shift work and requires knowledge of safety protocols and technical systems.

What cities are hiring for 3Rd Assistant jobs?

Cities with the most 3Rd Assistant job openings:

What are the most commonly searched types of 3Rd jobs?

The most popular types of 3Rd jobs are:

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

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

Infographic showing various 3Rd Assistant job openings in the United States as of September 2026, with employment types broken down into 80% Full Time, and 20% Part Time. Highlights an 100% In-person job distribution.

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 22 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.