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Lead Mechanical Engineer - Water​/Wastewater

Job in Cedar Rapids, Linn County, Iowa, 52404, USA
Listing for: HR Green, Inc.
Full Time position
Listed on 2026-01-01
Job specializations:
  • Engineering
    Environmental Engineer, Mechanical Engineer
Job Description & How to Apply Below

Lead Mechanical Engineer - Water/Wastewater

Join to apply for the Lead Mechanical Engineer - Water/Wastewater role at HR Green, Inc.

Join our team! Our mission is BUILDING COMMUNITIES. IMPROVING LIVES. With a history spanning over 110 years, HR Green has consistently delivered on this mission, establishing ourselves as a trusted partner for our colleagues, clients, and communities alike. Each day, we work to find solutions that inspire our employees and fit our clients' needs to build trust to exceed their expectations.

As a leading player in the industry, we’re proud to be ranked No. 168 on Engineering News Record’s Top 500 Design Firms list in 2025. Our unwavering dedication to cultivating an exceptional workplace environment has earned us the distinguished honor of being recognized as a Best Place to Work.

Summary

We are hiring a Lead Engineer - Mechanical on our Water/Wastewater Team! This is a great opportunity for a PE who is interested in working with a dynamic team on a wide range of projects. The Lead Engineer - Mechanical role supports projects within the Water-Wastewater team, ensuring technical success and project delivery. Projects range from municipal water treatment, wastewater treatment, pumping, conveyance, and private industry work with food and beverage manufacturing industries.

This role will allow you to make significant contributions to the projects by designing the HVAC, plumbing, and fire protection systems to support the facilities design.

You will be working side‑by‑side with a team of knowledgeable engineers and professionals in an environment that fosters collaboration and career development. If you are looking to work with a company that will provide mentorship, technical guidance and camaraderie, client‑facing opportunities, and involvement in professional organizations, then read on to discover more about this exciting opportunity!

Locations:

  • Houston, Texas
  • As an individual contributor, uses professional judgment to direct and independently complete assigned engineering designs.
  • Actively assists the Project Manager, assigns tasks and schedules project support team members, answers questions, and monitors progress.
  • Completes major design tasks with limited supervision that meet the needs of internal and external customers, primarily design of HVAC, plumbing and fire protection systems for Water/Wastewater facility projects.
  • Checks the accuracy (formal and informal QA/QC) of assigned tasks completed by other engineering and technical staff.
  • Makes major design decisions for HVAC, plumbing, and fire protection equipment that meet the needs of external customers while coordinating the impact of such decisions on related project efforts.
  • Proactively identifies technical, schedule or financial issues and seeks resolution from the Project Manager and/or the client, as appropriate to the situation.
  • Assists the Client in bidding or contractor selection if authorized by the Project Manager.
  • Responds to contractor questions and issues and prepares and issues project addenda as needed.
  • Participates in the creation of engineering services proposals, including the calculation/estimation of time schedules and costs of the proposed work when requested by the Project Manager.
  • Signs and seals engineering documents as an authorized representative of the company.
  • Acts as technical expert on assigned projects when operating as an individual contributor and acts as Project Manager on projects as assigned.

Education And Experience

  • Previous water/wastewater experience strongly preferred.
  • Must have a bachelor’s or master’s degree in engineering from an accredited four‑year or graduate engineering university in a relevant discipline.
  • Professionally registered (P.E.) in one or more states in which HR Green, Inc. conducts business (or have the ability to obtain such registration within six months of employment).
  • Possess ten or more years of design/engineering experience and a demonstrated ability to act as an authorized agent of the company to sign engineering documents.
  • Possess strong technical verbal and technical writing skills and be able to read technical literature and engineering plans.
  • Possess strong…
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