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3Rd Assistant Engineer Jobs in Virginia (NOW HIRING)

H5 Data Centers

Building Engineer

Chantilly, VA · On-site

$38 - $44/hr

Position Summary The Data Center Building Engineer provides maintenance support for the Data Center ... Oversees third party activities and services. * Assist in some very basic security related duties.

H5 Data Centers

Building Engineer

Ashburn, VA · On-site

$30 - $38/hr

Position Summary The Data Center Building Engineer provides maintenance support for the Data Center ... Oversees third party activities and services. * Assist in some very basic security related duties.

WR Systems

RF Engineer

Norfolk, VA · On-site

$90K - $127K/yr

... * Assist with the planning and execution of RF-related field operations. * Evaluate system ... third-party background check which may include verification of any of the following: Employment ...

Metromont

Design Engineer

Winchester, VA

A third-generation company with nearly 1,500 associates across six manufacturing facilities in ... Resolve engineering design issues independently (with the exception of laterals) * Assist others ...

Metromont

Design Engineer

Winchester, VA · On-site

A third-generation company with nearly 1,500 associates across six manufacturing facilities in ... Resolve engineering design issues independently (with the exception of laterals) * Assist others ...

Metromont LLC

Design Engineer

Winchester, VA · On-site

$70K - $90K/yr

A third-generation company with nearly 1,500 associates across six manufacturing facilities in ... Resolve engineering design issues independently (with the exception of laterals) * Assist others ...

SC&A Inc

Environmental Engineer

Arlington, VA · On-site +1

$80K - $120K/yr

Lead/prepare proposals * Assist in preparing environmental guidance documents. * Interact with ... SC&A does not accept third-party applications or agency inquiries. Phone calls are not accepted for ...

Dewberry

Senior Traffic Engineer

Fairfax, VA · On-site

$118K - $151K/yr

The Candidate may also prepare design and cost estimates, meet with clients, and assist in proposal ... Notice to Third Party Recruiters: Dewberry only compensates job placement recruiters that have a ...

Metromont

Design Engineer

Winchester, VA

A third-generation company with nearly 1,500 associates across six manufacturing facilities in ... Resolve engineering design issues independently (with the exception of laterals) * Assist others ...

Trilon Group

Civil Engineer (PE) - Aviation

Richmond, VA · On-site

$87K - $115K/yr

Develop production work plans, schedules, and budgets. * Assist Client/Project Manager or Senior ... Adjust and correlate data, research code issues, applicable third-party agency requirements, design ...

Dewberry

Senior Traffic Engineer

Fairfax, VA · On-site +1

$118K - $151K/yr

The Candidate may also prepare design and cost estimates, meet with clients, and assist in proposal ... Notice to Third Party Recruiters: Dewberry only compensates job placement recruiters that have a ...

WSP

Substation Design Engineer

Richmond, VA · On-site

$97K - $124K/yr

... * Assist in reviewing third-party design documents, procurement lists, and project plans. * Perform professional electrical engineering work relating to the design of single line, three line, wiring ...

WSP

Substation Design Engineer

Richmond, VA · On-site +1

$97K - $124K/yr

... * Assist in reviewing third-party design documents, procurement lists, and project plans. * Perform professional electrical engineering work relating to the design of single line, three line, wiring ...

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Showing results 41-60

All Jobs3Rd Engineer Jobs3Rd Assistant Engineer Jobs3Rd Assistant Engineer Jobs in Virginia

3Rd Assistant Engineer information

See Virginia salary details

$32.7K

$88K

$133.3K

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

As of Aug 10, 2026, the average yearly pay for 3rd assistant engineer in Virginia is $87,993.00, according to ZipRecruiter salary data. Most workers in this role earn between $69,900.00 and $103,600.00 per year, depending on experience, location, and employer.

What is a 3rd assistant engineer?

A 3rd Assistant Engineer, also known as a Third Engineer, is a licensed member of the engineering department on a merchant ship. They are responsible for maintaining and operating the ship’s machinery, including engines, pumps, and electrical systems under the supervision of senior engineers. Their duties often include performing scheduled maintenance, monitoring equipment performance, and responding to machinery emergencies. This role is typically an entry-level officer position for marine engineers who have completed relevant maritime training and certification.

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

Aspect3Rd Assistant Engineer2Nd Assistant Engineer
Required CertificationsDiploma or equivalent in engineeringBachelor's degree in engineering or related field
Work EnvironmentAssisting in routine maintenance and operationsMore responsibilities in supervision and troubleshooting
Industry UsageCommonly used in shipping, manufacturing, and power plantsUsed in similar industries with increased responsibilities

The main difference between a 3Rd Assistant Engineer and a 2Nd Assistant Engineer lies in their level of responsibility and qualifications. The 3Rd Assistant Engineer typically holds a diploma and performs routine tasks, while the 2Nd Assistant Engineer usually has a bachelor's degree and handles more complex duties. Both roles are essential in engineering operations within industrial and shipping sectors, but the 2Nd Assistant Engineer has a higher level of responsibility and expertise.

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

To thrive as a 3rd Assistant Engineer, you generally need a bachelor's degree in marine engineering or a related field, a valid U.S. Coast Guard (USCG) license, and a solid understanding of shipboard engineering systems. Familiarity with engine room operations, maintenance management systems, and safety protocols is crucial, along with any required STCW certifications. Strong problem-solving skills, attention to detail, and effective teamwork set outstanding candidates apart in this role. These competencies ensure the reliable operation and safety of ship machinery, supporting efficient vessel performance and regulatory compliance.

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

As a 3rd Assistant Engineer, your primary responsibilities include monitoring and maintaining the ship’s engine room machinery, assisting with routine inspections, and ensuring equipment is operating safely and efficiently. You’ll often be assigned to a specific watch, working closely with the engineering team to troubleshoot technical issues and carry out scheduled maintenance. This role also involves keeping detailed logs, supporting emergency drills, and collaborating with other departments to ensure smooth vessel operations. Adapting quickly to changing priorities and working in a team-oriented environment are essential for success in this position.
What are popular job titles related to 3Rd Assistant Engineer jobs in Virginia? For 3Rd Assistant Engineer jobs in Virginia, the most frequently searched job titles are:
What job categories do people searching 3Rd Assistant Engineer jobs in Virginia look for? The top searched job categories for 3Rd Assistant Engineer jobs in Virginia are:
What cities in Virginia are hiring for 3Rd Assistant Engineer jobs? Cities in Virginia with the most 3Rd Assistant Engineer job openings:
3Rd Assistant Engineer jobs near you
Infographic showing various 3Rd Assistant Engineer job openings in Virginia as of August 2026, with employment types broken down into 94% Full Time, and 6% Contract. Highlights an 100% In-person job distribution, with an average salary of $87,993 per year, or $42.3 per hour.

Building Engineer

H5 Data Centers

Chantilly, VA • On-site

$38 - $44/hr

Full-time

Re-posted 21 days ago

Job description

Position Summary

The Data Center Building Engineer provides maintenance support for the Data Center and campus. Operates and maintains all mechanical and electrical systems in the systems and complex. Provides assistance to outside vendors/contractors for specialized maintenance, repairs, and mechanical projects. Provides critical support to facility with 12-hour shifts working a 4 day on 4 days off work week. This position reports to the Facilities Manager.

Essential Job Functions

  1. Receives direction from the Building Engineer Lead.
  2. Accountable for infrastructure systems uptime, monitoring critical systems within tolerances, frequent building inspections while providing reliable service delivery to colocation customers.
  3. Operation of all mechanical and electrical systems in a reliable and cost-effective manner for the complex.
  4. Effectively learn and utilize building controls systems of chiller plants, HVAC systems, cooling towers, other water systems, and fire systems.
  5. Provide maintenance support for all mechanical and environmental systems, make repair suggestions, while providing feedback and improvement recommendations for the procedures.
  6. Ability to climb and work from ladders, man hoists or lifts, and the ability to lift and carry heavy loads (up to 50lbs.).
  7. Contribute to minor repairs and light duty construction which includes physical structures, plumbing systems, wide range of HVAC equipment, and electrical distribution.
  8. Oversees third party activities and services.
  9. Assist in some very basic security related duties.

Qualifications

  1. 2-5 years of electrical and mechanical experience working in High Availability (Data Centers, Manufacturing, Hospital) environments.
  2. College/Technical degree preferred but will consider applicants with equivalent work-related experience.

Experience:

  1. Electric/pneumatic controls operation.
  2. Assist in the formulation, implementation, and adherence to safety policies and procedures related to the daily operations of the facilities. Participation in safety, knowledge and skills training.
  3. Previous military experience a plus.
  4. CFC refrigeration license a plus.

Skills and Abilities

  1. Reading and understanding blueprints, schematics, control ladder drawings and flow charts.
  2. Setup and use test equipment, including volt ohm meters, balancing and alignment equipment, refrigerant leak detection, refrigerant reclaim units.
  3. Requires understanding and principal working knowledge of parallel redundant UPS systems, standby diesel generators, large-chilled water systems, automated controls troubleshooting and setup.