Mechanical Engineer - Federal Building Design

Jacobs; Arlington (VA); Hybrid; USD 80,000 - 125,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) plan

Stock purchase program

Unlimited PPTO

Paid holidays

Caregiver leave

Job summary

Jacobs seeks a Mechanical Engineer to join our Arlington, VA or Boston, MA team. You will design HVAC systems, prepare design documentation, and develop plant utilities and BMS concepts for federal projects.

The role involves calculations, load analysis, and collaboration with cross-disciplinary teams to deliver solutions for critical infrastructure and advanced manufacturing environments.

Qualifications

• Bachelor's degree in Mechanical Engineering.
• At least 2 years of relevant HVAC/buildings design experience (federal including DoD, Federal Civilian and/or Defense Contractor preferred).
• Experience with Revit.
• Proficient in load calculation/energy modeling software such as Trace 3D Plus, Carrier HAP, etc.
• Federal security clearance is preferred.

Responsibilities

• Develop conceptual and Basis of Design level design approaches and documentation.
• Develop HVAC and plant utility systems philosophies.
• Develop mechanical/utility equipment and construction specifications.
• Perform temperature/humidity control/utility load calculations.
• Develop airflow diagrams, pressurization plans, and ductwork/piping plans.
• Develop equipment plans, plant utility distribution plans, and system details; develop BMS control philosophy and sequences.
• Provide construction assistance through submittal reviews, RFIs, and field visits to verify implementation.
• Travel as required for client development and project execution.

Skills

HVAC design

Load calculations

Energy modeling

BMS concepts

Education

Bachelor's Degree in Mechanical Engineering

Tools

Revit

Trace 3D Plus

Carrier HAP

Job description

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.

We’re seeking a Mechanical Engineer to join our team in Arlington, VA or Boston, MA. 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

Here’s what you’ll need

• Bachelor’s Degree in Mechanical engineering
• At least 2years of relevant professional experience for HVAC/Mechanical buildings-related design projects (Federal including DoD, Federal Civilian and/or Defense Contractor project experience preferred).
• Experience with Revit
• Proficiency in load calculation / energy modeling software such as Trace 3D Plus, Carrier HAP, etc.
• Federal security clearance is preferred

Our health and welfare benefits

• 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 $80,000.00 to $125,000.00. 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 July 28, 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.