Mechanical Engineer

Mechanical Engineer

Department: MEP

Employment Type: Full Time

Location: Boston, MA

Compensation: $80,000 - $90,000 / year

Creativity. Innovation. A desire to effect positive change. That’s what it takes to work at Fuss & O’Neill – because that’s what we do for the communities in which we work: we create, innovate, and design long‑lasting improvements that improve quality of life. Quality of life is also important on the job, so we’ve prioritized work‑life balance by offering flexible/remote work opportunities, part‑time benefits, and generous PTO.

We believe that each day is an opportunity to support one another, to support our clients, and to support our communities. If you feel the same, then you’ve found your future.

We are seeking an early‑career Mechanical Engineer to join our Boston, MA office. This professional will support the planning, design, and documentation of HVAC and building mechanical systems for commercial, institutional, and industrial facilities.

In this role, you will work alongside experienced engineers and project managers to perform HVAC load calculations, equipment selection, and system layouts, develop AutoCAD and Revit design documents, and support projects through design and construction. The position offers hands‑on exposure to site investigations, interdisciplinary coordination, and construction administration, along with mentorship and professional development opportunities to support your path toward licensure.

• Assist in the design of HVAC, plumbing, and fire protection systems under the guidance of senior engineers
• Develop and modify mechanical system drawings and BIM models using AutoCAD and Revit
• Research and apply applicable codes and standards, including IBC, IMC, ASHRAE, and NFPA
• Support energy efficiency and sustainability goals, including IECC and LEED requirements
• Participate in site visits to document existing conditions and gather field data
• Coordinate with architectural, structural, electrical, and civil engineering teams to support integrated design solutions
• Prepare technical reports, specifications, design narratives, and construction documents
• Assist with construction administration tasks, including submittal reviews, RFIs, and field inspections
• Support project managers and senior engineers to help deliver projects on time and within budget
• Attend client and internal coordination meetings as appropriate

• Bachelor’s degree in mechanical engineering or engineering science
• 1–3 years of experience (internship experience preferred)
• EIT certification preferred, but not required
• Interest in HVAC and building mechanical system design
• Experience with or exposure to AutoCAD and Revit preferred
• Strong proficiency in Microsoft Word, Excel, and Outlook
• Strong organizational skills and attention to detail
• Ability to work collaboratively in a multidisciplinary team environment
• Willingness to travel to project sites 1–2 days per week on average throughout MA, CT, and RI

This is a hybrid role
, offering the best of both worlds—collaborate in‑office with a high‑performing team and enjoy the flexibility of working remotely part of the week. We’re committed to supporting work‑life balance while maintaining strong team connection and project delivery.

• Schedule Flexibility
  :
  Customize your work schedule to fit your life.
• Health & Wellness
  :
  Comprehensive health benefits to keep you and your family healthy.
• Continuous Learning
  :
  Access to online courses, conferences, and learning materials to fuel your professional growth.
• Paid Time Off
  :
  Take the time you need to recharge with our generous paid time off policy.
• Career Advancement
  :
  Clear paths for promotions and the opportunity to take on new challenges.
• Fun Team Culture
  :
  Regular team‑building activities, happy hours, and company outings.

Visa sponsorship is NOT available for this position

All offers are contingent upon a successful criminal background check. Fuss & O’Neill, Inc. is proud to be an Affiirmative Action/Equal Opportunity Employer. Fuss & O’Neill participates in the Federal e-Verify program.

#LI-AS1