Mechanical Engineer - Mission Critical

HED is an inclusive architecture and engineering practice seeking a Mechanical Engineer - Mission Critical to join their experienced team. The role involves leading the design of complex mechanical systems, ensuring technical excellence, and mentoring junior engineers while maintaining client relationships.

Responsibilities:

• Lead the design and documentation of complex mechanical systems—such HVAC, plumbing and/or fire protection systems - - with minimal oversight
• Validate and approve key mechanical engineering calculations -such as refrigerant concentration limit calculations, plumbing system sizing, and equipment sizing - and integrate results into system design
• Oversee setup of mechanical Revit models, including views, sheet organization, system browser strategies, and annotation standards
• Resolve system conflicts during interdisciplinary coordination by collaborating with architectural, structural, and civil teams
• Serve as the primary mechanical technical contact across internal and external project teams
• Review and approve mechanical submittals, RFIs and substitutions; coordinate detailed responses with the broader team
• Perform site visits, field verification, and punch walks with high autonomy; generate professional-level mechanical field reports
• Provide mechanical design leadership from early concept through construction administration; inform system selection, performance targets, and documentation strategy
• Guide QAQC reviews for mechanical deliverables and assist in the development of project-specific mechanical quality plans
• Mentor junior engineers and mechanical designers through delegation, technical feedback, and one-on-one coaching
• Participate in fee development, scoping, and resource planning for mechanical scope in project proposals
• Lead internal and external project meetings by presenting mechanical system concepts, decisions, and trade-offs
• Have a strong understanding of mission critical HVAC systems, including but not limited to Fan Coil Walls, MDR/MMR CRAHs, air and water cooled chiller systems, and liquid cooling systems
• Ability to review and interpret CFD reports to understand impacts to equipment performance and use to inform design decisions
• Ability to estimate loads for equipment sizing and work with team members to oversee detailed load calculations
• Knowledge of IEEC, ASHRAE 90.1 & 90.4 requirements for equipment/system efficiency requirements
• Knowledge of typical redundancy requirements for data centers and impact on design requirements for specific tier
• Knowledge of master planning for high level client interaction and support for site planning of future buildings and estimate utility impacts

Requirements:

• Bachelor's degree in Mechanical Engineering, or equivalent, required
• P.E. licensure required
• An understanding of the financial status of projects as they progress, development of cost budgets for projects, value of client relationships and be able to deliver projects with a focus on the quality is required
• Written and verbal communication skills commensurate with the position required
• Strong organizational skills required
• Revit experience required
• Experience with computers, specifically for word processing, spreadsheet use/creation and email required
• Detail-oriented, self-motivated, enthusiastic, flexible and curious personalities required
• Ability to work well with others under deadline situations required
• 10+ years in the AEC Industry preferred