Senior Mechanical Engineer - Security Clearance Required

Industry

Cities & Places

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good.

Your impact

Jacobs has an opportunity for a Senior Mechanical Engineer supporting our long-term project in Washington, DC.

Position Description

The Senior Mechanical Engineer will have essential multi-discipline team representation and be self-motivated, well organized, and customer focused. This position will be working with our Federal group as an owner’s representative. The Senior Mechanical engineer will act as a consultant in the establishment of MEP design standards and criteria for construction projects. Provide expert mechanical engineering support based on these requirements:

• Perform and interpret cooling load calculations.

• Read ductwork layouts.

• Understand ducted and plenum return air systems, including Z-ducts and U-ducts in the design.

• Understand different mechanical systems. Review the advantages and disadvantages of each system. 

• Review the mechanical system layout in the specialized room such as the data closet and the communications room. 
• Ensure compliance with the client’s Construction Standards. 

• Understand watts per square foot ratio for various rooms within the client’s programs.

• Review drawings and ensure compliance with the POR, Campus Design Guides and Construction Standards, as well as with local codes. 

• Write and review sequence of operations for various HVAC systems.  

• Review various 24/7 mechanical systems and determine which system complies with the client’s requirements. 

• Participate in commissioning of mechanical systems at the end of each project. 

• Calculate life-cycle analysis of various HVAC systems. 

• Work with team to develop cost estimates for various HVAC systems. 

• Write scope of work for HVAC systems. 

• Review air and water balance reports (TAB).  

• Perform construction administration duties, such as reviewing RFIs, field reports, and submittals. 

• Act as a consultant in the establishment of design standards and criteria for construction projects. Provide expert mechanical engineering comments based on these requirements. 

• Participate in quality control and quality assurance during construction.  

• Assist in the development of reports, studies and presentations.

• Collaborate and assist in resolving critical and possibly controversial issues with a multi-disciplined team of architects, engineers and federal agency clients.

• Exhibit resiliency if shifting priorities require reprioritization of workload.

• Guides and Construction Standards. Suggest edits or updates to these documents, as applicable.

#biaffederal #cj

Here's what you'll need

• Bachelor’s degree from an accredited college or university in Mechanical Engineering

• Proficient in current version of AutoCAD software.

•10 years of experience in HVAC building design and construction. 

• Active secret clearance and ability to obtain Top Secret clearance.

Ideally, You’’ll also have:

• Professional Engineer (PE) license is preferrable.

•20 years of HVAC building design and construction experience.

• Federal design and construction experience 

Posted Salary Range: Minimum

160,000.00

Posted Salary Range: Upper

180,000.00

Our health and welfare benefits are designed to invest in you, and in the things you care about. Your health. Your well-being. Your security. Your future. Employees have access to medical, dental, vision, and basic life insurance, a 401(k) plan, and the ability to purchase company stock at a discount. Eligible employees may also enroll in a deferred compensation plan or the Executive Deferral Plan. Jacobs has an unlimited U.S. Personalized Paid Time Off (PPTO) policy for full-time salaried/exempt employees, seven paid holidays, and caregiver leave. And certain roles may be eligible for additional rewards, including merit increases, performance discretionary bonus, and stock.

The base salary range for this position is $160,000.00 to $180,000.00. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. Job posted on March 23, 2026. This position will be open for at least 3 days.

Onsite employees are expected to attend a Jacobs Workplace on a full-time basis, as required by the nature of their role.

Your application experience is important to us, and we’re keen to adapt to make every interaction even better. If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team via Careers Support .

Locations

City State Country
Washington	District of Columbia	United States
Arlington	Virginia	United States