Senior Mechanical Design Engineer, MEP - Systems Leader

Mannik Smith Group; Maumee (OH); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

401(k) with company match

Health insurance + Vison + Dental + LI

Flexible schedule

Paid time off

Referral program

Tuition reimbursement

Catalytic Coaching

Job summary

The Mannik Smith Group in Maumee, OH is seeking a Senior Mechanical Design Engineer to lead design for facility and water/wastewater projects. You will develop detailed packages and perform calculations, guiding a multidisciplinary team toward compliant, innovative solutions.

You will mentor junior engineers and collaborate across disciplines while delivering high-quality construction documents and robust designs for diverse clients.

Qualifications

• Bachelor’s degree in mechanical engineering or related discipline.
• 7–12+ years of mechanical design experience in facilities, water/wastewater, pump stations, or industrial process environments.
• Professional Engineer (PE) license preferred.
• Strong knowledge of process piping, pump systems, flow calculations, and mechanical system design.
• Proficiency in 3D modeling and mechanical design software (AutoCAD, Revit, or similar).
• Experience designing heat trace systems and freeze-protection components.
• Understanding of relevant codes and standards (ASME, NFPA, IPC, AWWA, etc.).
• Ability to lead design tasks, coordinate across disciplines, and deliver high-quality construction documents.
• Strong interpersonal and communication skills with the ability to guide junior staff and engage effectively with stakeholders.

Responsibilities

• Lead mechanical design for facility and water/wastewater pump station projects, including process piping, HVAC, and equipment layouts.
• Develop detailed mechanical design packages, including plans, sections, details, P&IDs, and specifications.
• Perform pump and pipe flow calculations, system curve analyses, and equipment sizing for various process applications.
• Design and specify heat trace systems, insulation, and freeze-protection components for facility and outdoor installations.
• Evaluate and select mechanical equipment such as pumps, valves, piping, heat exchangers, and mechanical supports.
• Participate in design reviews and quality checks to ensure accuracy, constructability, and compliance with project requirements.
• Provide technical leadership by planning and delegating project work, mentoring junior engineers, and supporting their professional growth and development.

Skills

Bachelors in ME

Experience 7-12+ yrs

PE license (preferred)

3D modeling

Heat trace design

Codes & standards

Leadership

Communication

Education

Bachelor's degree in mechanical engineering

Tools

AutoCAD

Revit

3D modeling software

Job description

The Mannik Smith Group in Maumee, OH is seeking a Senior Mechanical Design Engineer to lead design for facility and water/wastewater projects. You will develop detailed packages and perform calculations, guiding a multidisciplinary team toward compliant, innovative solutions.

You will mentor junior engineers and collaborate across disciplines while delivering high-quality construction documents and robust designs for diverse clients.