Senior Mechanical Engineer - Plumbing & Building Systems (Hybrid)

Harley Ellis Devereaux (HED); Sacramento (CA); Hybrid; USD 110,000 - 140,000; Full time

Job summary

Harley Ellis Devereaux (HED) is seeking a Mechanical Engineer III to own portions of project design from concept through construction, performing calculations, QA/QC, and cross-disciplinary coordination with minimal supervision.

You will develop mechanical system layouts in Revit (HVAC, plumbing, fire protection), lead design reviews, mentor junior designers, and participate in client meetings to advance project goals while ensuring quality and code compliance.

Qualifications

• Bachelor's degree in mechanical engineering, or equivalent.

Responsibilities

• Lead design development and calculations for mechanical systems across schematic, design development, and construction document phases.
• Independently perform mechanical design tasks - such as load calculations, equipment sizing, controls sequences and diagrams, and code compliance checks - with minimal input.
• Prepare technical documentation for mechanical systems, including system descriptions and narratives, Division 21, 22 & 23 specifications, equipment schedules, and redline markups.
• Develop and review mechanical system layouts in Revit - including HVAC, plumbing and/or fire protection - in coordination with architectural and structural backgrounds.
• Coordinate mechanical design with internal disciplines and external consultants to resolve design conflicts and progress design.
• Review and respond to mechanical RFIs and submittals with support from engineers.
• Perform field verification for mechanical conditions, assist with punch walks, and participate in mechanical construction observation visits.
• Participate in early-phase design strategy discussions and support mechanical discipline leads with technical insight.
• Engage in internal QAQC processes and perform peer reviews of mechanical drawings and documentation for code compliance and drafting consistency.
• Begin mentoring mechanical designers and interns in software use, modeling best practices, documentation standards, and calculation basics.
• Participate in internal and external project meetings, and support the preparation of agendas, meeting minutes, and follow-up documentation with a focus on mechanical scope.
• Track and manage hours on assigned work and assist in project planning discussions regarding scope and resource allocation.

Skills

Load calculations

Equipment sizing

Controls diagrams

Code compliance

Coordination

Peer reviews

Education

Bachelor's degree in mechanical engineering

Tools

Revit

Job description

Harley Ellis Devereaux (HED) is seeking a Mechanical Engineer III to own portions of project design from concept through construction, performing calculations, QA/QC, and cross-disciplinary coordination with minimal supervision.

You will develop mechanical system layouts in Revit (HVAC, plumbing, fire protection), lead design reviews, mentor junior designers, and participate in client meetings to advance project goals while ensuring quality and code compliance.