Senior Mechanical Engineer - Building Systems

About the Role

• Lead mechanical design and serve as project manager for building systems projects, including HVAC, plumbing, and fire protection. • Develop and review construction documents, technical specifications, and cost estimates. • Ensure designs comply with applicable codes, standards, and client requirements (e.g., ASHRAE, local building codes). • Manage project scope, schedule, and budgets for assigned projects. • Serve as primary point of contact for select projects, building and maintaining strong client relationships. • Coordinate and manage multidisciplinary design teams, including internal civil, structural, and electrical staff. • Oversee construction administration activities, including submittal review, RFI responses, and site visits. • Lead and participate in internal and external project meetings, maintaining clear communication with clients, consultants, and contractors. • Support proposal development, level-of-effort estimating, and project planning. • Mentor junior engineers and contribute to technical development within the mechanical team. • Regular team‑building activities, happy hours, and company outings.

Key Responsibilities

• ▸mechanical design
• ▸project management
• ▸construction docs
• ▸code compliance
• ▸coordination
• ▸site visits

What You Bring

The ideal candidate is a seasoned mechanical engineer with strong technical expertise in HVAC, plumbing, and fire protection systems, a passion for mentoring junior staff, and the ability to manage projects from concept through construction. This role combines hands‑on engineering, project leadership, and client engagement in a collaborative, forward‑thinking environment. The role requires a Professional Engineer license, at least ten years of experience designing building systems, and proficiency in AutoCAD and Revit, with strong knowledge of applicable codes and ASHRAE standards. The position is hybrid, offering in‑office collaboration and remote flexibility, and involves occasional travel to job sites in MA, CT, and RI. • Bachelor’s degree in mechanical engineering or related field. • Professional Engineer (PE) license. • 10+ years of mechanical engineering design experience for building systems (HVAC, plumbing, fire protection). • Proficiency in AutoCAD and Revit for MEP design. • Strong knowledge of HVAC, plumbing, fire protection systems, building codes, and ASHRAE standards. • Experience managing projects through design and construction phases. • Excellent written and verbal communication and collaborative skills. • Proficiency in Microsoft Word, Excel, and Outlook. • Familiarity with BIM coordination tools (preferred). • Ability to travel 1–2 days per week to job sites in MA, CT, and RI.

Requirements

• ▸pe license
• ▸10+ years
• ▸autocad
• ▸revit
• ▸hvac
• ▸project management

Benefits

Creativity, innovation, and a desire to effect positive change define the work at Fuss & O’Neill, where we design long‑lasting improvements that enhance quality of life for our communities. We prioritize work‑life balance with flexible and remote work options, part‑time benefits, and generous PTO, fostering an environment where employees support each other, our clients, and our neighborhoods. Fuss & O’Neill offers schedule flexibility, comprehensive health and wellness benefits, continuous learning opportunities, generous paid time off, clear paths for career advancement, and a fun team culture with regular team‑building activities and outings. • Flexible schedule and hybrid remote/in‑office work. • Comprehensive health and wellness benefits for you and your family. • Access to online courses, conferences, and learning materials for professional growth. • Generous paid time off. • Clear career advancement paths and opportunities for new challenges.

Work Environment

Office Full-Time