Third Assistant Engineer Jobs
Third Assistant Engineer jobs are open across maritime shipping, power generation, and industrial facilities, from entry-level to experienced roles, with specializations in marine engineering, mechanical systems, and plant operations. Find a role that fits below and apply directly.
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Showing 5 of 10+ Third Assistant Engineer jobs
Job Functions, Duties, Responsibilities and Position Qualifications:
We're not just a workplace - we're a Great Place to Work certified employer!
Proudly certified as a Great Place to Work, we are dedicated to creating a supportive and inclusive environment. At Sonic Healthcare USA, we emphasize teamwork and innovation. Check out our job openings and advance your career with a company that values its team members!
You are a superhero when it comes to patient specimens. You’ve got problem-solving instincts, a passion for patient care, and the drive to keep things running smoothly. You’re also looking for great benefits, the support of an all-star team, and an opportunity to grow your career.
Join our front line of #HealthcareHeroes! Our mission is to advance the health and wellbeing of our communities as a leader in clinical laboratory solutions. Quality is in our DNA - is it in yours?
This opportunity is full-time during third shift (18% Shift Differential).
In this role, you will:
- Perform a vital part of the patient care process by ensuring laboratory specimens are properly processed, prepared, routed, and stored
- Work within an automated laboratory environment, including loading and unloading instrumentation and maintaining workflow efficiency
- Perform physically demanding tasks, including routine lifting of up to 40–50 lbs
- Support instrument maintenance by clearing consumables such as pipette tips and decapped tube caps, including proper disposal of biohazard waste
- Recognize when corrective action is needed and implement effective solutions
- Work in a laboratory environment with biological hazards while adhering to PPE requirements
- Champion safety, compliance, and quality control
All you need is:
- High School Diploma or equivalent
- Previous training or experience in specimen collection or processing
- Strong reading, writing, and analytical skills
- Ability to operate general laboratory equipment, including but not limited to: telephones, computers, centrifuges, and audible alarms
- Ability to meet the physical demands of the role, including frequent lifting (up to 40–50 lbs), standing, and repetitive motion in a fast-paced environment
- Comfort working with and disposing of biohazard materials in accordance with safety protocols
Bonus points if you’ve got:
- 1–2 years of related experience in a clinical laboratory, data entry, production, or automation-focused environment
We’ll give you:
- Appreciation for your work
- A feeling of satisfaction that you’ve helped people
- Opportunity to grow in your profession
- Free lab services for you and your dependents
- Work-life balance, including Paid Time Off and Paid Holidays
- Competitive benefits including medical, dental, and vision insurance
- Help saving for retirement, with a 401(k) plus a company match
- A sense of belonging – we’re a community!
We also want you to know:
This role will have routine access to Protected Health Information (PHI). Employees will be trained on reasonable safeguards and are expected to maintain strict confidentiality, as well as abide by all applicable privacy and security standards. Employees are expected only to access PHI when it is required to fulfill job duties.
Scheduled Weekly Hours:
40Work Shift:
3rd Shift (United States of America)Job Category:
Laboratory OperationsCompany:
Clinical Pathology Laboratories, Inc.Sonic Healthcare USA is an equal opportunity employer that celebrates diversity and is committed to an inclusive workplace for all employees. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, age, national origin, disability, genetics, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.
Job Functions, Duties, Responsibilities and Position Qualifications:
We're not just a workplace - we're a Great Place to Work certified employer!
Proudly certified as a Great Place to Work, we are dedicated to creating a supportive and inclusive environment. At Sonic Healthcare USA, we emphasize teamwork and innovation. Check out our job openings and advance your career with a company that values its team members!
You are a superhero when it comes to patient specimens. You’ve got problem-solving instincts, a passion for patient care, and the drive to keep things running smoothly. You’re also looking for great benefits, the support of an all-star team, and an opportunity to grow your career.
Join our front line of #HealthcareHeroes! Our mission is to advance the health and wellbeing of our communities as a leader in clinical laboratory solutions. Quality is in our DNA - is it in yours?
This opportunity is full-time during third shift (18% Shift Differential).
In this role, you will:
- Perform a vital part of the patient care process by ensuring laboratory specimens are properly processed, prepared, routed, and stored
- Work within an automated laboratory environment, including loading and unloading instrumentation and maintaining workflow efficiency
- Perform physically demanding tasks, including routine lifting of up to 40–50 lbs
- Support instrument maintenance by clearing consumables such as pipette tips and decapped tube caps, including proper disposal of biohazard waste
- Recognize when corrective action is needed and implement effective solutions
- Work in a laboratory environment with biological hazards while adhering to PPE requirements
- Champion safety, compliance, and quality control
All you need is:
- High School Diploma or equivalent
- Previous training or experience in specimen collection or processing
- Strong reading, writing, and analytical skills
- Ability to operate general laboratory equipment, including but not limited to: telephones, computers, centrifuges, and audible alarms
- Ability to meet the physical demands of the role, including frequent lifting (up to 40–50 lbs), standing, and repetitive motion in a fast-paced environment
- Comfort working with and disposing of biohazard materials in accordance with safety protocols
Bonus points if you’ve got:
- 1–2 years of related experience in a clinical laboratory, data entry, production, or automation-focused environment
We’ll give you:
- Appreciation for your work
- A feeling of satisfaction that you’ve helped people
- Opportunity to grow in your profession
- Free lab services for you and your dependents
- Work-life balance, including Paid Time Off and Paid Holidays
- Competitive benefits including medical, dental, and vision insurance
- Help saving for retirement, with a 401(k) plus a company match
- A sense of belonging – we’re a community!
We also want you to know:
This role will have routine access to Protected Health Information (PHI). Employees will be trained on reasonable safeguards and are expected to maintain strict confidentiality, as well as abide by all applicable privacy and security standards. Employees are expected only to access PHI when it is required to fulfill job duties.
Scheduled Weekly Hours:
40Work Shift:
3rd Shift (United States of America)Job Category:
Laboratory OperationsCompany:
Clinical Pathology Laboratories, Inc.Sonic Healthcare USA is an equal opportunity employer that celebrates diversity and is committed to an inclusive workplace for all employees. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, age, national origin, disability, genetics, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.
Third Assistant Engineer Jobs by Experience Level
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Find Third Assistant Engineer JobsThird Assistant Engineer Job Market
Who's Hiring
What Employers Look For
The qualifications that appear most often in third assistant engineer jobs.
- Valid USCG Third Assistant Engineer license or equivalent national mariner credential
- Minimum verified sea time in engine department on qualifying vessels
- Proficiency in operating and maintaining diesel propulsion or steam turbine systems
- STCW certification including basic safety training and proficiency in survival craft
- Experience standing independent engine room watches at sea or plant operating shifts
- Familiarity with planned maintenance systems and engine room logkeeping procedures
Tips for Your Third Assistant Engineer Job Search
Tailor your license credentials section
Third assistant engineer roles often require a specific USCG or maritime license at the right tonnage or horsepower rating. List your license number, endorsements, and expiration date prominently so hiring managers can verify eligibility without digging through your resume.
Apply early to roles that fit
Migrate Mate lists third assistant engineer openings from across the United States in one place, so you can find roles that match and apply directly to each listing.
Highlight watchkeeping and engine room hours
Many employers screen for verified sea time or engine room watchkeeping hours before an interview. Document your accumulated hours by vessel type and engine category, and have your seatime records ready to attach with your application.
Target postings by vessel or facility type
Job titles vary between maritime, power plant, and industrial settings. Search for the specific environment you want, whether that is deepwater vessels, tankers, power stations, or refineries, so your specialization aligns with what the employer actually operates.
Prepare for practical technical screenings
Interviews for third assistant engineer positions frequently include hands-on or scenario-based questions about watch duties, emergency procedures, and equipment troubleshooting. Review your company's safety management system documentation and walk through common casualty scenarios before the call.
Negotiate relief schedules before accepting an offer
Rotation length and relief cycles vary widely across employers in this field. Clarify the work-on and work-off schedule during the offer stage, not after signing, so you can compare total compensation and time-off accurately across competing offers.
Third Assistant Engineer Jobs: Frequently Asked Questions
Which companies are hiring the most third assistant engineers?
Clinical Pathology Laboratories, KinderCare Learning Companies, and Chevron are hiring the most third assistant engineers right now, with openings concentrated in Texas, Michigan, and New York, based on current listings on Migrate Mate as of November 2026. Demand tends to track vessel fleet size and scheduled dry-dock rotations, so hiring activity can shift by quarter.
How many third assistant engineer jobs are remote?
About 0% of third assistant engineer openings are fully remote or hybrid as of November 2026, reflecting the hands-on nature of most roles in this field. Shore-based technical superintendent positions and training or compliance coordinator roles within engineering departments are the most likely to offer any remote flexibility.
How do you become a third assistant engineer?
Start by completing an accredited maritime engineering program or accumulating qualifying engine department sea time on vessels. Apply to the United States Coast Guard for your Third Assistant Engineer license, passing the required written examinations and meeting the seatime threshold for the tonnage or horsepower rating you want. Obtain your STCW certification and keep your medical certificate current, then apply to vessel operators or industrial employers seeking entry-level licensed engineers.
Can you get hired as a third assistant engineer with little experience?
Yes, but you need a valid license and documented sea time even at the entry level, since those are non-negotiable screening criteria. Candidates who come through maritime academies often get hired directly into third assistant roles after completing their cadetship, because that program produces the seatime and watchkeeping records employers require. Applying to smaller vessels or coastal operators first is a practical way to build your record if your hours are at the lower end of the qualifying threshold.
What does the third assistant engineer interview process look like?
Most employers start with a phone or video screen to confirm your license status, seatime, and availability for the relief schedule. A technical interview follows, covering watch routines, main engine and auxiliary system operation, and emergency response procedures. Some maritime companies add a vessel or plant visit before an offer, where you may be asked to walk through equipment or review a maintenance log alongside senior engineers.
Where can I find and apply to third assistant engineer jobs?
You can find and apply to third assistant engineer jobs on Migrate Mate, which lists current openings from across the United States in one place. Search the listings for roles that match your license type, vessel preference, or industry sector, then apply directly to each opening that fits your background.
See All 10 Third Assistant Engineer Jobs
Find roles that match your experience and apply in just a few clicks.
Find Third Assistant Engineer Jobs