Project Engineer III​/IV - Water​/Wastewater

Project Engineer III/IV – Water/Wastewater at Gonzalez Companies, LLC, located in Belleville, IL.

Gonzalez Companies is a partner‑managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts, Departments of Transportation, and municipalities. We are currently seeking a Project Engineer (III/IV) – Water/Wastewater to help serve our clients and community. If you’re hungry for knowledge, ready to make a difference, and dedicated to providing personalized attention to our clients, we want you on our team.

The projected range of compensation in Illinois for this job is $80,000 – $95,000.

• Lead the design, analysis, and technical oversight of water and wastewater treatment facilities, pump stations, pipelines, and related infrastructure.
• Prepare and review engineering calculations, design drawings, specifications, and technical reports.
• Conduct hydraulic modeling and system analysis to optimize water distribution and sewer collection networks.
• Manage field investigations, site assessments, and construction observation; provide technical guidance to junior engineers.
• Develop project scopes, cost estimates, schedules, and proposals; support project management activities.
• Coordinate multidisciplinary teams to ensure integrated and compliant project designs.
• Review and ensure compliance with design standards, regulatory requirements, and permitting processes.
• Serve as a point of contact for clients, contractors, and regulatory agencies; communicate technical information clearly and effectively.
• Mentor and support junior staff; uphold quality control and company engineering standards.

• Bachelor’s degree in Civil, Environmental, or related engineering field.
• EI/EIT required; PE registration preferred or in progress.
• 4–8+ years of experience in water/wastewater design, permitting, or construction support.
• Proficiency with hydraulic modeling tools (Water
  
  GEMS, Sewer
  
  GEMS, Info Water, SWMM, etc.).
• Strong experience with AutoCAD/Civil 3D; BIM/Revit knowledge preferred.
• Demonstrated experience with pump systems, process equipment, site layout, and utility design.
• Excellent analytical, project management, and problem‑solving skills.
• Strong leadership, communication, and client coordination abilities; capable of mentoring junior engineers.

• Competitive salary
• Major medical, dental and vision insurance
• Flexible Spending Account
• Health Savings Account
• 401(k)
• Bonus program
• Paid holidays and generous paid time off
• Professional development
• A team of creative and talented individuals to work alongside

Gonzalez Companies, LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetic information, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leave of absence, compensation, and training.