Senior Water & Wastewater Engineer​/Technical Group Leader

Job Description & Requirements

Interstate Engineering is seeking an experienced Senior Water & Wastewater Engineer to lead complex municipal infrastructure projects while serving as the firm's Water & Wastewater Technical Group Leader. This role combines project delivery, technical leadership, staff development, and continuous improvement to advance our water and wastewater practice across all offices. The position serves as a firmwide subject matter expert and plays a key role in establishing standards, mentoring staff, and promoting technical excellence.

This employee can be located in any Interstate Engineering office location.

• Lead planning, design, and construction support for water and wastewater infrastructure projects.
• Serve as a technical resource for project teams across the region.
• Review plans, specifications, reports, calculations, and technical deliverables.
• Support project managers with scope, schedule, budget, and risk management.

• Lead the Water & Wastewater Technical Group and facilitate collaboration across regions.
• Serve as a technical resource for project teams across the company.
• Develop and maintain company standards, specifications, templates, and best practices.
• Identify opportunities to improve technical quality, efficiency, and consistency.
• Participate in monthly Technical Group Leader meetings and company improvement initiatives.

• Mentor engineers, designers, and technicians.
• Support hiring, onboarding, and workforce development efforts.
• Coordinate training, conferences, certifications, and knowledge-sharing activities.
• Help build the next generation of technical leaders within the firm.

• Lead lessons learned and technical improvement efforts.
• Improve workflows, QA/QC processes, tools, and technical resources.
• Collaborate with other technical groups to strengthen multidisciplinary project delivery.

• Bachelor's degree in Civil or Environmental Engineering.
• Professional Engineer (PE) license required.
• 10+ years of experience in water and wastewater engineering.
• Experience leading municipal infrastructure projects from planning through construction; where applicable operations of multidisciplinary systems (Mechanical, Electrical & SCADA)
• Strong communication, mentoring, and leadership skills.
• Demonstrated ability to develop teams and drive technical excellence.

• Water treatment and distribution systems
• Wastewater treatment and collection systems
• Utility master planning
• Hydraulic modeling
• Regulatory compliance and permitting
• SRF funding programs
• AutoCAD Civil 3D, GIS, and related engineering tools

You'll have the opportunity to shape the future of our Water & Wastewater practice, influence company-wide technical standards, mentor emerging professionals, and help communities solve critical infrastructure challenges while working with a collaborative team committed to continuous improvement and technical excellence.