Senior Mechanical Engineer

Senior Mechanical Engineer

Department: MEP

Employment Type: Full Time

Location: Hartford, CT

Reporting To: Elizabeth Landry

Compensation: $90,000 - $120,000 / year

Description Creativity. Innovation. A desire to effect positive change. Thats what it takes to work at Fuss & ONeill because thats 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 weve 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 youve found your future.

Fuss & ONeill is seeking a Senior Mechanical Engineer to join our growing MEP team. In this role, youll lead mechanical system design projects across diverse markets, including commercial, industrial, educational, and municipal sectors. You will manage projects from concept through construction, mentor junior staff, and serve as a primary client contact, ensuring high-quality, code-compliant, and innovative design solutions.
Key Responsibilities

• Lead the design of HVAC, plumbing, and fire protection systems for a range of building types.
• Develop and review construction documents, technical specifications, and cost estimates.
• Ensure compliance with applicable codes, ASHRAE standards, and client requirements.
• Manage project scope, schedule, and budget for assigned projects.
• Serve as primary client contact, fostering strong relationships and ensuring satisfaction.
• Coordinate multi-disciplinary design teams, including internal and external partners.
• Conduct site visits to support design and construction phases.
• Lead project meetings and maintain clear communication with clients, consultants, and contractors.
• Support business development efforts, including proposal preparation and level-of-effort estimating.
• Mentor junior engineers and contribute to team technical development.

Skills, Knowledge and Expertise

• Bachelors degree in Mechanical Engineering or related field
• EIT certification (PE preferred or ability to obtain within 6 months)
• 5+ years of experience in MEP building systems design (HVAC, plumbing, fire protection)
• Proficiency in AutoCAD and Revit for MEP design
• Strong knowledge of building codes and ASHRAE standards
• Experience with energy modeling software
• Proven ability to manage projects through design and construction phases
• Excellent written and verbal communication skills for client and team coordination
• Strong Microsoft Office skills (Word, Excel, Outlook)
• Ability to travel 12 days/week to project sites in MA, CT, and RI

This is a hybrid role , offering the best of both worldscollaborate 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.
Why Youll Love Working with Us

• 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 Affirmative Action/Equal Opportunity Employer. Fuss & ONeill participates in the Federal e-Verify program.

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