Mechanical Engineer – HVAC & Building Systems Design

Jacobs; Boston (MA); On-site; USD 85,000 - 125,000; Full time

Job summary

Jacobs is seeking a Mechanical Engineer with a background in building HVAC systems to engage with clients, evaluate designs, and advance projects from feasibility through detailed design to full execution.

You will contribute to construction documents, perform design calculations, and communicate complex ideas clearly while applying engineering fundamentals and proactive problem solving on building projects, including life science facilities.

Qualifications

• Bachelor’s or Advanced Degree in Mechanical Engineering, or related engineering discipline.
• At least 4 years of design/consulting experience.
• Demonstrated ability for developing design calculations, construction drawings and specifications.
• Strong communication and technical writing skills.

Responsibilities

• Provide feasibility studies, construction documents, and construction oversight for building projects.
• Possess strong communication and problem‑solving skills, a strong grasp of engineering fundamentals, and the confidence to explore innovative solutions.

Skills

Mechanical Engineering

HVAC design

Construction documentation

Technical writing

Education

Bachelor’s degree in Mechanical Engineering

Tools

Revit

AutoCAD

CADWorx

NavisWorks

Pipe-Flo

Pipe 2000

Trane Trace

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

This opening provides the opportunity to engage with our clients, evaluate building HVAC systems, develop concept-level plans and solutions, then take these through detailed design to provide for full execution of the solution. Demonstrated abilities include a basic understanding of mechanical and HVAC engineering disciplines. Prior experience in consulting and design will be highly regarded.

Your primary responsibilities will focus upon providing feasibility studies, construction documents and construction oversight for building projects. You’ll be expected to possess strong communication and problem-solving skills. Successful candidates will have a strong grasp of engineering fundamentals and the confidence to explore innovative solutions.

If you are passionate about developing reliable and sustainable energy projects, motivated by a challenge, and enjoy working with a dynamic, multi-disciplinary team to develop innovative solutions, Jacobs is the place for you. Come join our growing team to realize the future of energy!

Here's what you'll need

• Bachelor's or Advanced Degree in Mechanical Engineering, or related engineering discipline
• At least 4 years of design/consulting experience
• Demonstrated ability for developing design calculations, construction drawings and specifications.
• Strong communication and technical writing skills
  
  
  

Ideally, you will also have

• 3D modeling software such as Revit, AutoCAD, CADWorx and NavisWorks
• Hydraulic modeling software such as Pipe-Flo or Pipe 2000
• HVAC Software such as Trane Trace, or HAP program.
• Professional Engineer license or ability to get reciprocity within 6 months
• Thermal utility plants and distribution systems (steam, hot water, chilled water)
• Utility master planning or decarbonization/climate response planning
• Cogeneration or combined heat and power systems
• Lab. and Vivarium Design
• Life Science/ Pharmaceutical cGMP manufacturing
  
  
  

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 $85,000.00 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 16, 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.