Senior Process Mechanical Engineer – Water/Wastewater
Location: Greenville, SC | Full-Time | Hybrid Option Available

We’re partnering with a nationally recognized engineering firm seeking a Senior Process Mechanical Engineer to join their Water Design Center in Greenville, South Carolina. This is a high-impact leadership role on a multi-disciplinary team focused on designing complex, large-scale water and wastewater treatment facilities.

The ideal candidate will bring deep technical experience, a strong background in process mechanical design, and a desire to guide projects from conceptual design through construction. You’ll play a critical role in shaping facility layouts, leading design efforts, mentoring junior staff, and participating in client meetings and industry events.

Role Overview:

As a Senior Process Mechanical Engineer, you will serve as a Design Phase Manager, overseeing the technical design and team coordination across multiple high-volume, customized treatment plant projects. You will manage schedules, budgets, and quality deliverables while serving as a subject matter expert in both internal and client-facing capacities.

This role offers the opportunity to work with cutting-edge 3D/4D BIM software alongside a collaborative in-house team of engineers, designers, and specialists focused on delivering efficient, high-quality infrastructure.

Key Responsibilities:

• Lead process mechanical design for water and wastewater treatment systems

• Develop design criteria through analysis and modeling of water/wastewater processes

• Perform hydraulic analysis, pump selection, and sizing for treatment facilities

• Design mechanical systems including blowers, chemical storage/feed systems, and piping

• Produce specifications, contract documents, and instrumentation drawings

• Oversee the development of construction documents and 3D models

• Coordinate with multidisciplinary teams across civil, structural, mechanical, electrical, and I&C disciplines

• Serve as a technical lead in client meetings and industry conferences

• Provide construction support and resolve technical issues in the field

• Mentor and support junior engineers and designers

• Ensure adherence to quality control processes and internal standards

Qualifications:

Required:

• Bachelor’s degree in Civil, Environmental, Chemical, Mechanical, Biosystems, or Agricultural Engineering (ABET accredited)

• 10+ years of engineering consulting experience focused on water/wastewater projects

• Professional Engineer (PE) licensure

• Proven experience managing design projects from planning through delivery

• Strong collaboration and communication skills

• Familiarity with P&ID development, mechanical layout, and process evaluation

Preferred:

• Master’s degree in a related engineering discipline

• Experience with lift stations, booster pump stations, and chemical feed systems

• Hands-on knowledge of MS Word, Excel, Outlook, PowerPoint, and MS Project

• Background working within highly integrated multi-disciplinary project teams

• Involvement in local or national professional engineering organizations

Why This Role?

This firm’s Water Design Center is a centralized, collaborative hub where engineers, scientists, and designers work side-by-side to create custom water and wastewater treatment solutions. The team leverages advanced BIM tools, shortens design cycles, and maintains a high standard for quality and innovation.

What You’ll Gain:

• A leadership role on nationally visible infrastructure projects

• Access to mentorship, advanced technology, and continuing education support

• Competitive compensation and performance-based bonuses

• A full benefits package including:

  • Medical, dental, and vision insurance

  • Employer-paid disability and life insurance

  • HSA contributions

  • Generous PTO, including holidays and volunteer time

  • 401(k) with employer match

  • Professional development support