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Mechanical Engineer

Job in St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listing for: LJC
Full Time position
Listed on 2026-06-18
Job specializations:
  • Engineering
    Mechanical Engineer
Salary/Wage Range or Industry Benchmark: 80000 - 100000 USD Yearly USD 80000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: St. Louis

The Role We Want You For

The Mechanical Engineer will support the design of mechanical systems for mission‑critical facilities, including data centers, advanced manufacturing plants, and other high‑availability environments. Working alongside a Senior Mechanical Engineer on each project, this mid‑level role is responsible for producing detailed mechanical designs, performing analyses, and coordinating with multi‑disciplinary teams to deliver infrastructure that meets demanding uptime and efficiency requirements in a fast‑paced environment.

The

Specifics of the Role
  • Develop mechanical designs for mission‑critical projects under the direction of a Senior Mechanical Engineer, ensuring compliance with industry standards, codes, best practices and client requirements.
  • Perform detailed calculations and analyses such as load calculations, pipe pressure drop, duct pressure drop, PUE, WUE, etc.
  • Produce mechanical design deliverables including drawings and specifications.
  • Delegate tasks to junior engineers, oversee their progress, and provide technical guidance, mentorship and training.
  • Coordinate with other disciplines including civil, structural, architectural, electrical, plumbing and controls to support integrated design.
  • Support construction administration activities, including RFI responses, submittal reviews and field observations.
  • Contribute to client meetings and presentations, support the senior engineer in communicating technical solutions.
  • Stay current with emerging technologies and trends in the mission‑critical industry.
Requirements
  • BS degree in Mechanical Engineering from an ABET institution required.
  • 3-7 years of experience in Mechanical Engineering; mission‑critical, data center or high‑tech manufacturing project experience preferred.
  • EIT required; PE License preferred or actively pursuing.
  • Proficiency in mechanical design software (e.g., AutoCAD, Revit, Trane Trace, Carrier HAP, or similar tools). Proficiency or familiarity with CFD modeling software such as Ansys Fluent, Cadence Reality or similar is a plus.
  • Experience with building codes and standards (ICC series, ASHRAE, NFPA, etc.) and local/regional codes and regulations.
  • Experience working in a design‑build or integrated project delivery (IPD) environment is a plus.
  • Knowledge of construction workflows and their relationship to design.
  • Strong communication, leadership, and problem‑solving skills.
Benefits
  • Discretionary Annual Bonus:
    Subject to company and individual performance.
  • Comprehensive Benefits Package Including:
    Medical, dental and vision plans, 401k, generous PTO and paid company holidays, employee assistance program, flexible spending accounts, life insurance, disability coverage, learning & development programs and more!
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