Senior Building Mechanical Engineer

Jacobs; Bend (OR); Hybrid; USD 124,000 - 249,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) plan

Stock purchase program

PPTO + holidays

Caregiver leave

Job summary

Jacobs is seeking a Senior Building Mechanical Engineer to lead the design of HVAC, plumbing, odor control, and fire protection systems for water and wastewater facilities in the Northwest region. You will manage multi-disciplinary teams, perform detailed calculations, select equipment, and coordinate with clients and vendors to ensure project success.

Required are a PE license, a bachelor’s degree in mechanical engineering, and 10+ years of design/build experience.

Qualifications

• Bachelor’s degree in mechanical engineering or related discipline.
• 10+ years of experience in HVAC, plumbing, and fire protection design and construction-phase services.
• Professional Engineer (PE) license.
• Strong data analysis, problem-solving, organizational skills, and multitasking in a fast-paced environment.

Responsibilities

• Lead design and coordination of mechanical systems for water and wastewater facilities.
• Prepare calculations for plumbing and HVAC systems and equipment sizing.
• Coordinate with architects, engineers, vendors, and clients to establish project needs.
• Provide design guidance and mentorship to junior designers and drafters.

Skills

HVAC design

Plumbing design

Fire protection design

Project coordination

Data analysis

Communication with clients

Mentorship

Education

Bachelor’s degree in mechanical engineering

Professional Engineer (PE) license

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

As a Senior Building Mechanical Engineer at Jacobs, you’ll bring innovation and excellence to some of the most exciting infrastructure projects in the Northwest region. You’ll use your exceptional design and analytical skills to lead, plan, design and focus on mechanical (plumbing, HVAC, odor control, and fire protection) systems for water and wastewater treatment-related facilities, which typically feature process treatment buildings, administration and operations buildings, laboratories, maintenance buildings, and occasional assignments for other business units, including federal and military programs, industrial, and institutional projects.

• Design complete plumbing systems, including utility and potable water distribution systems, drainage systems, and miscellaneous systems such as compressed air and natural gas.
• Design complete HVAC systems, including package type and central plants.
• Design odor control systems, including vapor and liquid phase treatment technologies.
• Design fire protection systems using a performance system approach.
• Prepare calculations for plumbing systems, including water and drainage flows, water heater sizing, and pump sizing and selection.
• Perform calculations for design, such as air loads, pipe/duct/equipment sizing, ventilation requirements, static pressure, odor removal, lifecycle costs, and energy analyses.
• Select equipment, coordinate with equipment vendors, and edit specifications.
• Conduct field evaluations and develop as‑built drawings.
• Develop master plans and perform field investigations.
• Conduct technology alternatives analyses using multi‑criteria analysis tools for selecting odor control systems.
• Manage and coordinate work with architects, technicians, and engineers of other disciplines.
• Attend meetings and communicate with clients, vendors, and other project stakeholders to establish project needs and discuss design issues.
• Manage quality and schedule of work and interface with clients.
• Support field staff during construction phase of projects, including responding to submittal reviews and requests for information.
• Provide design guidance and mentorship to designers/drafters and less experienced engineers.

Here's what you'll need

• Bachelor’s degree in mechanical engineering, or related engineering discipline.
• 10+ years’ experience in producing HVAC, plumbing, and fire protection designs and providing services during construction for design‑build projects
• Professional Engineer (PE) license
• Motivation, strong data analysis skills, technical problem‑solving ability, organizational skills, and the ability to effectively multitask in a fast‑paced environment.

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 $123,600.00 to $248,800.00. 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 August 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.

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.