Senior Mechanical Engineer

Senior Mechanical Engineer

In this role, you will be part of the Mission Critical & Data Center team based in Chicago. You will design and manage mechanical systems for high‑impact projects, ensuring compliance with codes, specifications, and client requirements.

• Prepare and review CAD drawings and mechanical documentation.
• Compute loads and perform detailed calculations.
• Apply relevant mechanical codes and standards.
• Edit specifications to reflect project requirements.
• Develop equipment room sizes during SD and DD phases.
• Select and schedule equipment, and coordinate with vendors.
• Collate information with other disciplines (MEP/FP, Arch, Struct, etc.).
• Respond to RFIs and review submittals accurately.
• Troubleshoot installation issues and apply risk‑management procedures.
• Plan work, manage designs, and meet project milestones.
• Create appropriate design documentation (SD narrative, basis of design, etc.).
• Mentor designer‑level staff and provide QA/QC guidance.
• Review code compliance with designers.
• Prepare studies, reports, and operation sequences for AHU, CHW, and HW systems.
• Apply concepts of CHW, HW, WSHP, variable & constant flow systems.
• Execute air‑side system selection (CV, VAV, coil, fan).
• Execute hydronic system design (hot, chilled, condenser, steam).
• Apply psychometrics to project calculations.
• Analyze and select advanced equipment (chillers, boilers, heat pumps, etc.).
• Consider humid climate design risks and total energy concepts.
• Manage multiple project work plans within budgeted hours.

• 10+ years in project management or mechanical design.
• PE license and formal engineering degree.
• Strong leadership and communication skills.
• Preferred experience in data center, mission‑critical, or telecom industries.
• Experience with building design.

$150,000 to $170,000, depending on skill set, experience, and certifications.

EXP is an Equal Opportunity Employer. We fully support equal access for all people regardless of race, color, sex, religion, gender, age, national origin, veteran status, disability, genetic information, family and medical leave, sexual orientation and gender identity or expression. For special accommodations, contact