ZipRecruiter

Log In

1

Third Assistant Engineer Jobs in Washington (NOW HIRING)

VTG

Software Engineer

Reston, VA · On-site

$105K - $150K/yr

We are looking for experienced Software Engineers who will assist in driving, developing, and ... Integrate model/software/hardware-in-the-loop components using first and third-party technologies

Albireo Energy

Automation Engineer - Jr

Gambrills, MD · On-site

$80K - $110K/yr

Integrate PLCs, SCADA systems, and third-party devices using protocols such as Modbus TCP/IP ... centers * Assist in system architecture, controls design, and network layout for industrial ...

Albireo Energy

Automation Engineer - Jr

Gambrills, MD · On-site

$80K - $110K/yr

Integrate PLCs, SCADA systems, and third-party devices using protocols such as Modbus TCP/IP ... centers * Assist in system architecture, controls design, and network layout for industrial ...

AMERICAN SYSTEMS

Journeyman Marine Engineer

Washington, DC · Hybrid

$85K - $98K/yr

... * Assist Senior Mechanical Engineers in design, development, and evaluation of the operation of marine vessels, ship machinery, and related equipment. * Support the US Coast Guard by reviewing third ...

247Hire

Third Party Risk Management Analyst

Vienna, VA · On-site

... * Assist with ServiceNow configuration, workflow testing, and enhancements supporting TPRM ... Experience with Agile methodologies and tools such as Azure DevOps/Jira. * Knowledge of workflow ...

Pae

Lead Operating Engineer

Arlington, VA · On-site

$117K - $155K/yr

The Lead Engineer is a licensed 3rd Class Stationary Engineer with extensive experience operating ... Provide technical guidance, training, and support to engineering staff. * Assist with planning and ...

Amentum

Lead Operating Engineer

Arlington, VA · On-site

$117K - $155K/yr

The Lead Engineer is a licensed 3rd Class Stationary Engineer with extensive experience operating ... Provide technical guidance, training, and support to engineering staff. * Assist with planning and ...

VTG

Software Engineer

Reston, VA · On-site

$105K - $150K/yr

We are looking for experienced Software Engineers who will assist in driving, developing, and ... Integrate model/software/hardware-in-the-loop components using first and third-party technologies

previous pagenext page

Showing results 21-40

All JobsThird Engineer JobsThird Assistant Engineer JobsThird Assistant Engineer Jobs in Washington

Third Assistant Engineer information

See Washington salary details

$37.4K

$100.5K

$152.3K

How much do third assistant engineer jobs pay per year?

As of Sep 12, 2026, the average yearly pay for third assistant engineer in Washington is $100,523.00, according to ZipRecruiter salary data. Most workers in this role earn between $79,800.00 and $118,400.00 per year, depending on experience, location, and employer.

What is a third assistant engineer?

A Third Assistant Engineer (3AE) is an entry-level licensed officer in a ship's engineering department. They are responsible for monitoring and maintaining various mechanical and electrical systems, including the engine room, boilers, pumps, and generators. They assist senior engineers in troubleshooting technical issues and ensuring the vessel's machinery operates efficiently and safely. The 3AE typically stands watch, performing routine inspections and responding to any mechanical alarms or malfunctions. This role is essential to the overall operational efficiency of the ship and requires mechanical expertise, problem-solving skills, and adherence to safety protocols.

What are the key skills and qualifications needed to thrive as a third assistant engineer?

To thrive as a Third Assistant Engineer, a solid background in marine engineering, mechanical systems, and an appropriate engineering license (such as STCW or USCG endorsement) are essential. Familiarity with engine room equipment, shipboard safety systems, and maintenance management software is typically required. Exceptional teamwork, communication, and a strong attention to detail help candidates stand out in this supportive engineering position. These skills ensure the safe, efficient operation of vessel machinery and contribute to smooth onboard collaboration and regulatory compliance.

What are the typical career advancement opportunities for a third assistant engineer?

As a Third Assistant Engineer, your role forms the foundation for advancing to more senior engineering positions on board, such as Second Assistant Engineer, First Assistant Engineer, and eventually Chief Engineer. Demonstrating reliability, technical competence, and leadership in this entry-level licensed role can lead to promotions as you gain more sea time, experience, and additional certifications. Many employers also provide training and mentorship programs to help engineers develop their skills and progress within maritime engineering. Advancement often comes with greater responsibilities, higher pay, and the opportunity to oversee larger engineering teams and more complex systems.

What are popular job titles related to Third Assistant Engineer jobs in Washington?

For Third Assistant Engineer jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Third Assistant Engineer jobs in Washington look for?

The top searched job categories for Third Assistant Engineer jobs in Washington are:

What cities in Washington are hiring for Third Assistant Engineer jobs?

Cities in Washington with the most Third Assistant Engineer job openings:

Third Assistant Engineer jobs near you
Infographic showing various Third Assistant Engineer job openings in Washington as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $100,523 per year, or $48.3 per hour.

Commissioning Engineer

Sterling, VA • On-site

Vertical Mechanical Group Inc
Construction • 201 - 500 employees
Learn more about Vertical Mechanical Group Incexternal

$90K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 16 days ago

Job description

Commissioning Engineer
About Vertical Mechanical Group (VMG)
Vertical Mechanical Group (VMG) is a leading mechanical contractor specializing in commercial HVAC, Plumbing, Piping, Controls, and Mechanical Construction. Originally formed through Anderson Mechanical Services, Inc. and Inspiration Plumbing Company, VMG brings decades of industry experience together with a forward-thinking approach to delivering high-quality mechanical solutions.
As we continue to grow, we are looking for a detail-oriented and technically strong Commissioning Engineer to join our Commissioning team. Reporting to the Commissioning Manager, this role plays a critical part in ensuring VMG's mechanical and plumbing systems are properly installed, tested, documented, and fully operational before final third-party commissioning.
This position is ideal for someone with a strong understanding of HVAC, plumbing, controls, and system operations who enjoys troubleshooting complex systems and collaborating with project teams to ensure successful project delivery.
What You'll Do
Support the Commissioning Process
  • Support commissioning activities for commercial HVAC, plumbing, controls, and mechanical systems
  • Verify systems and equipment are installed and operating according to project drawings, specifications, approved submittals, and sequences of operation
  • Prepare systems for testing and verification prior to third-party Commissioning Agent inspections
  • Coordinate functional performance testing and other commissioning activities
  • Track commissioning progress, outstanding items, deficiencies, and corrective actions
  • Support projects throughout startup, testing, commissioning, and final acceptance
Test & Verify System Performance
  • Perform and coordinate equipment startup, testing, and system verification activities
  • Review system operation to confirm equipment performs according to design requirements
  • Assist with functional testing of HVAC, plumbing, mechanical, and control systems
  • Evaluate system performance and identify operational or installation deficiencies
  • Verify equipment settings, sequences, alarms, safeties, and control functionality
  • Utilize diagnostic tools and testing equipment to evaluate system performance
Troubleshoot & Resolve Issues
  • Identify commissioning deficiencies and work with project teams to determine appropriate corrective actions
  • Troubleshoot mechanical, plumbing, and control system performance issues
  • Review sequences of operation and verify systems are functioning as intended
  • Coordinate with Project Managers, field teams, Controls Technicians, subcontractors, vendors, and equipment manufacturers to resolve issues
  • Track deficiencies through completion and verify corrective work
  • Help identify potential system issues before formal third-party commissioning
Coordinate Across Project Teams
  • Work closely with Project Managers, Superintendents, field personnel, Controls teams, and other project stakeholders
  • Coordinate directly with third-party Commissioning Agents throughout the commissioning process
  • Participate in commissioning meetings, project coordination meetings, and system reviews
  • Communicate testing requirements, deficiencies, and project status clearly to internal and external teams
  • Coordinate with other contractors and trades when system performance depends on multiple scopes of work
  • Support successful turnover from construction through final commissioning and owner acceptance
Manage Commissioning Documentation
  • Review mechanical drawings, specifications, submittals, sequences of operation, and control documentation
  • Maintain accurate commissioning logs, testing records, deficiency lists, and project documentation
  • Document equipment startup and functional testing results
  • Assist with commissioning reports and closeout documentation
  • Track required documentation and ensure commissioning deliverables are completed on schedule
What You Bring
  • Bachelor's degree in Mechanical Engineering, HVAC, Construction Management, or a related field
  • 4+ years of experience with MEP systems commissioning, testing, startup, controls, or a related field
  • Strong understanding of commercial HVAC and plumbing systems
  • Understanding of Building Automation Systems (BAS), HVAC controls, and sequences of operation
  • Experience with system startup, testing, troubleshooting, and performance verification
  • Ability to read and interpret mechanical drawings, specifications, submittals, and technical documentation
  • Strong understanding of system operations and controls
  • Familiarity with diagnostic tools and testing equipment
  • Strong analytical and problem-solving skills
  • Excellent organization, documentation, and communication skills
  • Ability to manage multiple projects, priorities, and deadlines
  • Ability to travel to project locations throughout the DMV region as required
Preferred Experience
  • Commissioning certification such as BCxP, CxA, CxT, CCP, or similar
  • Experience commissioning large-scale commercial mechanical systems
  • Experience with Building Automation Systems (BAS) and controls
  • Experience with functional performance testing and equipment startup
  • Familiarity with hydronic systems, pumps, air-handling equipment, central plants, and related commercial HVAC equipment
  • Experience coordinating directly with third-party Commissioning Agents
  • Previous experience working for a commercial mechanical contractor
What We Offer
  • Competitive compensation based on experience
  • Medical, dental, and vision insurance
  • 401(k) with company match
  • Paid time off and company holidays
  • Ongoing technical training and professional development opportunities
  • Opportunities for continued career advancement
  • Exposure to complex commercial mechanical and building systems
  • The opportunity to work alongside experienced Project Management, Controls, Commissioning, and field teams
  • A collaborative, team-oriented environment where your technical expertise makes an impact
Why VMG?
At VMG, commissioning is an important part of delivering the quality and performance our customers expect. Our Commissioning team works across projects to ensure complex mechanical systems aren't simply installed, but are tested, verified, and operating as designed before final turnover.
As a Commissioning Engineer, you'll have the opportunity to work directly with Project Managers, field teams, Controls professionals, third-party Commissioning Agents, and other project partners while developing deep technical expertise across a variety of commercial building systems.
If you're a technically minded professional who enjoys troubleshooting systems, solving problems, and ensuring complex mechanical equipment performs as intended, we'd like to hear from you.
Apply today and continue building your career with VMG.
VMG is an Equal Opportunity Employer.

Apply