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 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 We're seeking a Mechanical Engineer to join our Federal design team.. As part of our team, you'll have the chance to work on projects that bring innovative solutions to our clients' challenges locally and worldwide by providing a range of skills as part of an integrated building services design.

Your role will include:

Developing overall Conceptual and Basis of Design level design approaches and documentation. Developing HVAC and plant utility systems philosophies. Developing mechanical / utility equipment and construction specifications. Performing temperature / humidity control / utility load calculations. Developing airflow diagrams, pressurization plans, and classification, as well as ductwork and piping plans. Developing equipment plans, plant utility distribution plans, and system details. Developing building management system (BMS) control philosophy, details, and Sequence of Operations. Performing construction assistance in the form of submittal reviews, RFI responses, and field visits to verify construction of Mechanical / Utilities scope is executed per the intent of the design and assisting in start-up of systems when required. Traveling as required for client development and project implementation. #LI-IR1 Here's what you'll need

• Bachelor's Degree in Mechanical engineering
• EIT (engineer in training certification)
• At least 3 years of relevant professional experience for HVAC/Mechanical buildings-related design projects (Federal including DoD, Federal Civilian and/or Defense Contractor project experience preferred).
• Experience working in a multi-discipline environment
• Experience with Revit
• Proficiency in load calculation / energy modeling software such as Trace 3D Plus, Carrier HAP, etc.

Federal security clearance is preferred.

Posted Salary Range:

Minimum 100,000.00

Posted Salary Range:

Upper 140,000.00 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 a 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 $100,000.00 to $140,000.00. 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 November 10, 2026. This position will be open for at least 3 days. We value collaboration and believe that in-person interactions are crucial for both our culture and client delivery. We empower employees with our hybrid working policy, allowing them to split their work week between Jacobs offices/projects and remote locations enabling them to deliver their best work. 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 Arlington Virginia United States