Definition and Nature of Marine Engineering

71% of the Earth’s surface is hidden under the planetary ocean. Despite human kind’s continuous efforts and curiosity, only a small part of the navy-blue unknown has been discovered. Since life originated in seas, that inherent impulse to discover the ocean’s mysteries is maybe hidden in any of us. Yet the honor of becoming oceanic pioneers belongs to those who decided to pursue a marine engineering and research career path.

What Is Marine Engineering?

Marine engineering extremely related to mechanical engineering; it is a broad field of work that encompasses all aspects related to the equipment (machineries and technology) on board of ships, boats, and other ocean and sea vessels. Marine engineers can focus on developing, maintaining, supervising and renewing technologies such as stroke engines, oil purifiers, RAC equipments, boilers, inner gas generators, pumps or electronics – radars, satellite transmitters and receivers, transponders, circuitry and many others.

Sea Going Marine Engineering

Sea going marine engineers, as the name suggests, carry out their activity mostly at sea. If you want to pursue a career in this particular field, keep in mind that entry qualifications are important and directly related to the position you will occupy, as well as to the remuneration and benefits. Personnel with no special qualification can also engage in sea going marine engineering activities, on new entry positions, providing that the employer offers some sort of on-the-job training program. Traditionally, the new entry position is cadet, which requires above five high school qualifications and the completion of the cadet training offers the possibility of receiving a higher degree. The completion of cadetship is mandatory in order to move up the ladder and have the possibility of achieving higher levels of certificates within the next years.

However, many states and countries have strict regulations regarding the necessary qualifications for the marine engineer position. Often, in order to become a marine engineer, one must have at least a bachelor degree in engineering, and most times a master’s degree in the same field is compulsory.     Shore Based Marine Engineering   Shore based marine engineering is a particular branch of naval architecture and marine engineering that mainly focuses on the design and development of vessels. Those willing to work in this field are either graduates from marine universities or sea going personnel who wish to work on shore. Candidates applying for shore based marine engineering positions are usually specialists with higher education in the fields of design, manufacture and operation of machinery, equipment, tools and devices for facilitating port traffic and coordinating the trajectory of ships at sea. The employees must also have important knowledge about the mechanization and automation of activities carried out inside the port, and protection of the environment. Mechanical engineers specialized in plant and port facilities can operate in many areas, such as harbor, shipyards, construction sites, workshops, design, repair and maintenance workshops, and education.

There are other shore based marine engineering related activities, such as marine architecture and naval science. Naval architects are responsible with the design and construction of various vessels from scratch while nautical science focuses on operating these vessels.

Areas of Specialization for Marine Engineers

Any ocean going vessel needs to have at least the following marine engineering positions (most of the times, an internationally recognized certification is required), which can only increase in number with the size and type of the ship, but not decrease, according to the Safe Manning certificate.

Chief Engineer – is usually responsible with all activity of the Marine Engineering Department, operation, maintenance and replacement of technical equipments, ensuring the conformity of the fleet vessels with the inner safety management system. The chief engineer needs to be experienced and have all necessary practical skills in order to keep the ship propelling and reach the port in the best condition. He takes all decisions regarding machinery and technology issues.

Second Engineer – is in charge with the machinery spaces and he has the second highest level of responsibility after the chief engineer. The second marine engineer executes all maintenance activities, is responsible for trouble shooting, safety and efficiency of the operations of all technology on a ship, as well as for the main propulsion machinery and other auxiliary technologies. His team consists of all the staff in the machine and engine rooms.

Third Engineer – plays an important role in the operation and management teams and also the role of shipboard safety officer. He is in charge with the well functioning of all boilers (including boiler water and cooling water testing), generators and some auxiliary technologies. The third engineer is the next in charge after the second engineer and is the latter’s main assistant in technology maintenance works.

Fourth Engineer – is the junior engineer, subordinated to the third marine engineer. He has the responsibility of supervising the engine room activity, all MARPOL related technologies and auxiliary machineries and the only one in charge with the sludge and bilge management.

Education and Training Requirements for Marine Engineers

Even though most positions require a bachelor degree in mechanical, ocean or marine engineering in order to be able to enter the field, many applicants with ongoing studies are also accepted on positions with a lower degree of responsibility, provided they are enrolled in undergraduate programs that include the study of mathematics, materials testing, mechanics, hydraulics, and electrical systems. Of course, better qualifications come together with higher salary and benefits, as well as with consistent possibilities of promotion.   Usually, those who apply for marine engineering positions in the merchant marine are required to be licensed, which implies that they previously graduated from the U.S. Merchant Marine Academy or any of the six state marine academies. Not only should these candidates have competitive theoretical knowledge of marine engineering, but they also must pass the physical test and have some practical sea expertise. Practical expertise can also be achieved through on-the-job training programs offered by employers to all those who have a bachelor degree in other mechanical and civil engineering domains and want to change their field of work.     

Tags: Marine Engineering

Space Norway and SubCom announced that a contract is in-force for the survey, design, supply and installation of the Arctic Way Cable System. Credit: Space Norway

Space Norway, SubCom Announce Contract-in-Force for Arctic Way Cable System

Space Norway and SubCom announced that a contract is in-force for the survey, design…

Klein Marine Systems has received a contract to provide Synthetic Aperture Sonar hardware technology to Saab Kockums AB. Credit: Klein Marine Systems

Klein Marine Systems Signs Agreement With SAAB to Provide Synthetic Aperture Sonar (SAS) Technology

Klein Marine Systems, a leader in sonar technology, has received a contract to provide…

(Credit: Supplied by  Heriot-Watt University)

UK Researchers Tackle Landslide Risks for Offshore Wind Turbines with New Tool

Researchers at Heriot-Watt University have developed an advanced simulation tool…

(Credit: Elia)

Belgian Energy Island in North Sea Starts Taking Shape (Video)

TM Edison, a consortium of Belgian marine construction companies DEME and Jan De Nul…

(Credit: LLOG)

EnerMech Gets LLOG’s Gulf of America Pre-Commissioning Job

Energy industry services firm EnerMech has secured a contract from oil company LLOG…

Source: ISA

International Seabed Authority Responds to Trump Plan

The International Seabed Authority has issued a statement following the announcement…

WAM-V USV (Credit: OPT)

OPT Sends Off WAM-V USV for Indo-Pacific Operations

Marine power, data and service solutions company Ocean Power Technologies (OPT) has…

(Credit: CRP Subsea)

CRP Subsea to Supply Well Equipment for Shell’s Whale Development

CRP Subsea, an AIS company, has secured a contract with Shell for the supply of crushable…

Source: The Metals Co

First Deep-Sea Mining Company Asks Trump for International Permit

Deep-sea mining firm The Metals Co asked the Trump administration on Tuesday to approve…

Venterra has confirmed the successful completion of a regional metocean characterization study for the South Coast Designated Maritime Area Plan (SC-DMAP), another crucial step in Ireland's renewable energy journey. Credit: Venterra

Venterra Completes Celtic Sea Metocean Study for Ireland's South Coast Designated Maritime Area Plan

Venterra has confirmed the successful completion of a regional metocean characterization…

Teledyne Marine has announced advancements in customer service and support with investments in facilities, personnel, and global service locations. Credit: Teledyne

Teledyne Marine: Vehicles Unit Expands Customer Service and Support

Teledyne Marine has announced advancements in customer service and support with investments…

Odyssey Marine Exploration, Inc. is pleased to see the issuance of a new Executive Order titled Unleashing America’s Offshore Critical Minerals and Resources. Credit: Odyssey Marine Exploration

Odyssey Marine Exploration Welcomes New Executive Order for Deep Sea Mining

Odyssey Marine Exploration, Inc. is pleased to see the issuance of a new Executive…

Related Articles

Remote Imaging in Underwater Environments

Underwater instruments are used for remote sensing, because the earth is an aquatic planet and as much as 80% of its surface is covered by water. Moreover, there is a strong interest in knowing what lies in underwater. Underwater remote imaging…

Career Opportunities for Seekers of Marine Technology Jobs

As the energy resources of land have started to decrease by the day, scientists in research centers and universities, as well as eager businessmen, have turned their attention to developing means of energy production in the waters of the planetary ocean.

Find the Best Marine Technology School

As any other question involving superlatives, the answer depends on your expectations, financial possibilities and proximity to your home town. If you are one of the lucky ones living nearby a harbor city or anywhere close to the ocean, you…

Nominate Your Business for an MTR100 Award

Marine Technology Reporter's annual MTR100 awards edition is the industry's most awaited annual ranking of the leading companies serving the global underwater and subsea industry. Participants annually come from every corner of the globe and every sector of the industry.

Remote Remote Sensing – Environmental Monitoring

The two known main types of remote sensing and data gathering are: passive remote sensing and active remote sensing. The natural radiation that is emitted or reflected by the object or surrounding area is detected by the passive sensors. The…
In this edition MTR explores the drivers for subsea exploration in 2025 and beyond
Read the Magazine Sponsored by

Authors & Contributors

Marine Technology Magazine Cover Mar 2025 -

Marine Technology Reporter is the world's largest audited subsea industry publication serving the offshore energy, subsea defense and scientific communities.

Subscribe
Marine Technology ENews subscription

Marine Technology ENews is the subsea industry's largest circulation and most authoritative ENews Service, delivered to your Email three times per week

Subscribe for MTR E-news