Water/Wastewater Project Engineer

At Chastain and Associates, our mission is to build sustainable, functional environments where people live, work, and play. We value excellence, innovation, and connectivity. Chastain supports work-life balance with flexible hours, hybrid options, paid time off, and a culture that encourages personal and professional growth.

What You’ll Do as the Senior Project Engineer - Water/Wastewater 

You will lead potable, storm, and wastewater infrastructure projects with confidence and clarity. Your deep experience in civil engineering and project management, paired with strong leadership and communication skills, will ensure outstanding service to our clients.

• Serve as the project engineer for a variety of water-related infrastructure projects

• Oversee the full project lifecycle: initiation, design, construction, and closeout

• Ensure project delivery aligns with scope, budget, schedule, and quality standards

• Develop and manage proposals, plans, specifications, estimates, and grant documentation

• Conduct on-site investigations and feasibility studies across multiple domains

• Lead client relationships and participate in business development

• Coordinate with multidisciplinary teams to ensure alignment and efficiency

What You’ll Bring to the Table

• Education: Bachelor’s degree in Engineering (Civil Engineering preferred)

• Licensure: PE license in Illinois or ability to obtain within 1 year

• Experience: 10 years in U.S.-based civil engineering or governmental infrastructure work

• Location: Based in or willing to relocate to Decatur, IL (hybrid schedule available)

• Software: Proficiency in Microsoft 365, Adobe and AutoCAD

• Client Engagement: Strong relationship-building and client-facing skills

• Mindset: Collaborative, adaptable, values-driven

What We Offer You

• 401K plan with generous company match
• Annual pay increases
• Flexible work hours
• Paid-time off based on total industry tenure
• We provide four types of medical insurance plans, along with medical reimbursement and dependent care benefits
• We pay for dental insurance, and short-term/long-term disability insurance
• Employee and employee plus family life insurance options
• 7 paid holidays and 1 floating holiday
• Relocation assistance
• Cell phone reimbursement plan
• Annual boot allowance
• Verizon wireless employee discount program
• Sam's Club and Costco membership reimbursement 

Ready to Make an Impact?
We’re reviewing applications on a rolling basis. Apply today to help us build communities that thrive! Don't meet every single requirement? We encourage you to apply anyway. At Chastain, we're committed to building a diverse, inclusive, and authentic workplace—and you might be just the right candidate for this or another role.

Chastain and Associates LLC is an equal opportunity employer. All applicants will be considered without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, veteran, or disability status.