Everything You Need to Know About Electro-Technical Officer Jobs

Have you ever wondered what an Electro-Technical Officer does on a ship? The ETO is one of the newer seafarer ranks and they are responsible for ensuring that all of the electrical and electronic equipment onboard are monitored and maintained to ensure the safe and efficient running of the vessel.

In this article, which is one of a series of blog posts looking at what a seafarer’s job entails, we will take a look at the duties and responsibilities of Electro-Technical Officers, find out which department they work in, and take a look at the qualifications, skills and personal qualities you need to become a successful ETO.

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What is an Electro-Technical Officer job on a ship?

One of the interesting things about ETO jobs on a ship is that they are a relatively new position. Whilst ships have always had a Master (Captain) and Chief Officer, and deck crew such as Able Bodied Seamen, Deckhands and Bosuns, the advancement in electrical and electronic equipment has meant that specialist crew members are required to take care of it.

This means that there is a current need for people to work in Electro-Technical Officer jobs, making it a good career choice in the maritime industry.

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And this is therefore a job at sea which would suit someone who has a strong interest in electronics and all things electrical - as well as in a life at sea!

What are an ETO’s duties and responsibilities?

The Electro-Technical Officer’s duties are fairly wide reaching, although they are very much focused on the monitoring and maintenance of the electrical equipment on the ship. The tasks involved in an ETO job, depending on the type of vessel (for example cruise ship, superyacht or cargo ship) and the employer, could include all or any of the following:

• Maintaining the electrical and electronic equipment onboard the ship.

• Ensuring that maintenance schedules are planned and followed closely.

• Troubleshooting any problems with the equipment or systems under their care.

• Diagnosing faults and potential problems and repair where necessary.

• Assisting the Chief Engineer and other members of the department with tasks as delegated.

• Coordinating with technicians onshore when needed.

So we’ve covered the fact that an Electro-Technical Officer’s duties and responsibilities are to monitor, maintain and repair equipment on the ship or yacht, but what exactly does that entail and what might that equipment be?

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Well an ETO needs a thorough understanding of all things electrical as the list is pretty long!

What type of equipment does an ETO work with?

From the electronic communication systems that help a vessel navigate safely to the air conditioning that keeps guests and passengers cool and comfortable, the ETO is certainly kept on their toes!

On any given day at sea, the Electro-Technical Officer could find themselves working with:

• The main electric generation plant

• Propulsion control systems and engineering propulsion systems

• Radio communication systems

• Broadcast and internal aerial systems

• IT systems

• Electronic navigation aids such as echo sounders and autopilot systems

• Weather fax receivers

• Satellite communication systems

• Telephone and talk back systems

• RADAR systems

• Navigation lights

• Refrigeration systems

• Emergency switches

• Fire alarms and detection systems

• Battery backup systems

Given the wide range of equipment and systems the ETO works with, they will find themselves working in different areas of the vessel, including the bridge, and the engine and control rooms.

Which department does an Electro-Technical Officer work in?

ETOs normally work in the engineering department of a ship alongside engineers and electricians. When they are newly qualified they will assist the Marine Engineer Officer or Chief Engineer and possibly the Second Engineer, depending on the crew members onboard. They are usually regarded as a higher ranking Electrical Officer.

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A typical maritime career path for an Electro-Technical Officer would be to work their way through the relevant seafarer ranks, starting with ETO Cadet or Electrical Cadet and then, depending on the company and the titles they use, progressing to Electro-Technical Officer, Chief Electro-Technical Officer, Electrical Superintendent or Chief Technical Officer.

What qualifications does an ETO need to have?

Again, the different qualifications required by an ETO will depend on the company they are employed by or the country they are working in. The following is not to be taken as gospel, but to give you an idea of what certificates and qualifications may be needed.

It would be a distinct advantage for a new ETO to have undertaken a training course in electro-technical engineering and/or in the operation of marine communications, navigational and electrical systems.

Some employers will require a foundation degree in electrical engineering or marine engineering, or a degree in electrical engineering with a minimum bachelor’s level qualification. For some companies, this is not a prerequisite.

Like any crew member working in the deck and engineering departments, ETOs will be required to hold a seafarer Certificate of Competency (CoC) as well as having undertaken a STCW Basic Safety Training course which includes first aid, fire prevention and fire fighting.

Anyone working in a seafarer’s job will also need the correct medical certificate.

What skills and personal qualities should an ETO have?

It probably goes without saying that an aspiring Electro-Technical Officer should possess an interest in electrical systems and electronics, as well in engineering.

They need to be practically minded, a problem solver, logical, and be a good team player. They also need to be able to react quickly and be able to cope with emergency situations - just like any other officer on a ship, the ETO must be able to respond to and deal calmly with any potentially dangerous situations.

They need to have a keen eye for detail so that they can identify potential problems with the systems and equipment under their control. This also means that having good eyesight and, crucially, not being color blind, is essential as they will be working with color coded alarms, warning lights and electrical wires.

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They must be hardworking, and on a personal level - like anyone working in a job at sea - they must be able to cope with spending several months away from their home, their family and their friends.

What are some other jobs at sea?

There are almost countless different maritime jobs to pick a potential career from. From jobs in ports, to maritime jobs ashore, to working as a ship’s cook on a superyacht, a Shipfitter on a container feeder, an excavator driver on a bulk carrier or as a Pumpman on an oil tanker.

There are seafarer jobs which are guest or passenger-facing, such as that of the Chief Steward or Stewardess and the Stewards that work under them on a yacht, and those which are behind the scenes, such as the army of electricians, carpenters, plumbers and even garbage disposal operators who keep cruise ships running smoothly.

If you’re someone who is looking to get a foothold in the maritime industry, and you’re worried that you don’t have the right diplomas and degrees, don’t worry as there are a number of entry level cargo ship jobs that you could consider, such as Messman, Motorman, Wiper and Oiler.

These seafarer jobs are all based in the interior of the ship, either in the public areas such as the crew mess and galley (Messman) or mainly in the engine room, in the case of Engine Cadet, Junior Engineer, Motorman, Wiper and Oiler jobs.

If you’re looking for a career in seafarer jobs that will put you in touch with the elements, you might want to look at entry level ship jobs that will entail working on deck, such as Deck Cadet jobs or Ordinary Seaman jobs.

Jobs at sea are definitely varied and if you’re looking for an adventurous career, you might just have found your industry!

And don’t forget to download our seafarer job app for iOS or Android from the Apple App Store or from Google Play either!

Frequently Asked Questions About Electro-Technical Officer Jobs (ETOs) 

1. What does an Electro-Technical Officer (ETO) do on a ship? 

An Electro-Technical Officer, or ETO, is responsible for maintaining and repairing all of the ship’s electrical and electronic systems. This includes power generation and distribution, navigation and communication systems, automation, alarms, and safety equipment. The ETO ensures that every electrical system onboard functions correctly — from the bridge controls to the engine room machinery. 

2. How do you become an Electro-Technical Officer? 

To become an ETO, you’ll need to complete an approved Electro-Technical or Marine Engineering program at a recognized maritime academy or technical university. You must also finish STCW Basic Safety Training, hold a valid seafarer medical certificate, and complete sea service as a cadet or trainee before sitting for your Certificate of Competency (CoC) exams. Once qualified, you can join vessels as a licensed Electro-Technical Officer. 

3. What are the main duties of an ETO? 

Typical ETO duties include: 

• Inspecting and maintaining electrical machinery and automation systems 

• Troubleshooting faults in control panels, sensors, and power systems 

• Overseeing high-voltage operations and safety checks 

• Maintaining communication and navigation systems such as radar, ECDIS, and GMDSS 

• Supporting the engineering team during machinery operations and maintenance 

In short, the ETO keeps the ship’s electrical “nervous system” in top condition. 

4. What qualifications or training are required to work as an ETO? 

You’ll need: 

• A Degree or Diploma in Electrical, Electronic, or Marine Engineering 

• STCW Basic Safety Training (mandatory for all seafarers) 

• A valid Medical Fitness Certificate (STCW/MLC compliant) 

• Electro-Technical Officer (III/6) Certificate of Competency issued by your national maritime authority 

• Additional specialized courses, such as High Voltage Safety and Engine Room Resource Management (ERRM), are often recommended

5. What skills are important for an ETO? 

An ETO needs strong technical knowledge of electronics and electrical systems, along with good problem-solving and analytical skills. You should be comfortable working under pressure, especially during emergencies. Teamwork and communication are essential since ETOs collaborate closely with both the deck and engine departments. 

6. What is a typical day like for an ETO onboard a ship? 

No two days are quite the same. You might start with daily machinery rounds, checking alarms, generators, and control panels. During the day, you could be fixing a radar fault, testing safety systems, or performing preventive maintenance. When something breaks down — from lighting circuits to complex automation controls — it’s your job to diagnose and fix it quickly to keep the vessel operating safely. 

7. What types of ships employ Electro-Technical Officers? 

ETOs are in demand across all types of vessels, including: 

• Container ships 

• Tankers and bulk carriers 

• Cruise ships and ferries 

• Offshore support vessels 

• Naval and research vessels 

Larger and more technologically advanced ships especially rely on skilled ETOs due to their extensive electrical systems. 

8. Can an ETO move up to higher positions? 

Yes — experienced ETOs can advance to Senior ETO, Chief ETO, or Technical Superintendent positions. Some also move ashore into fleet technical management, marine electronics servicing, or maritime training. With technology playing a bigger role at sea, career prospects for ETOs are strong and growing. 

9. What’s the difference between an ETO and an Engine Officer?

While both work in the engine department, their focus is different. Engine Officers handle mechanical and propulsion systems (like engines, pumps, and compressors), while ETOs specialize in electrical and electronic systems (like power distribution, automation, and navigation). Both roles are essential for keeping the ship operational. 

10. Is being an ETO a good career choice? 

Definitely! It’s one of the most technically advanced and in-demand maritime careers. The role combines engineering, technology, and problem-solving — with opportunities to travel the world while earning a competitive salary. As ships become more automated and reliant on electronic systems, skilled ETOs are more essential than ever. 

Read the previous article in this series: Everything You Need to Know About Chief Steward Jobs

Read the next article in this series: Everything You Need to Know About Engine Cadet Jobs

This blog post was originally published on May 5th 2022 and updated on December 22nd 2025