Mid Level Water/Wastewater Engineer Jobs
Mid level water/wastewater engineer jobs go to engineers ready to own projects end to end, guide junior staff, and make technical calls on design and compliance without constant oversight. Openings run mostly on-site and hybrid across Consulting & Professional Services, Healthcare & Medical Services, and Staffing & Recruiting, with employers like HDR, MEB, and Jobot hiring at this level now.
Find JobsOverview
Showing 5 of 12+ Mid Level Water/Wastewater Engineer jobs











Ready to build a career and make your community better? At Inframark, we manage and maintain municipal water and wastewater systems, ensuring clean, safe, and reliable water services for communities. It’s more than just a job — it’s a chance to grow, learn, and be part of something that matters! Ready to make a difference? Apply Today!
Why Work for Inframark?
Our dedication to sustainability and community impact drives us to ensure clean, safe water for future generations. Whether you're at the start of your career or looking for advancement, Inframark offers purpose-driven work and opportunities for growth. We offer an attractive salary package, including a generous benefits package with health, dental, and life insurance, 401(k) plan, paid time off, sick leave, holidays, and wellness plan.
Operator III – Water/Wastewater Treatment
Job Function / Purpose
The Operator III is responsible for the operation and maintenance of equipment at medium to large-sized water and/or wastewater treatment facilities.
B Waste water license required.
Responsibilities
- Operate equipment and machinery such as valves, pumps, motors, belt presses, disinfection systems, and vehicles.
- Conduct routine testing, monitoring, troubleshooting, and maintenance of production wells and treatment processes.
- Document plant performance including daily flow and chemical usage, and maintain treatment facility equipment.
- Respond to after-hours emergencies to repair pumps, motors, instrumentation, and other equipment.
- Ensure plant security and cleanliness, including grounds maintenance as needed.
- Train staff on operational procedures, equipment repair, and safety practices.
- Provide customer service support and communicate with clients on technical aspects of operations.
- May coordinate maintenance activities at the facility.
- Other duties as assigned.
- Willingness to work varied shifts including weekends, holidays, evenings, and on-call 24/7 as needed.
High School Diploma or GED required. Minimum of 4 years of experience in water/wastewater operations.
Licenses / Certifications
Valid Driver’s License (CDL preferred). Wastewater Operator License required. Other certifications may vary depending on site-specific needs.
Technical Skills
Advanced knowledge of water/wastewater operations. Ability to interpret operational manuals and instructions. Intermediate proficiency with Microsoft Office and internet-based tools.
Communication
Clear and professional communication. Ability to collaborate across teams, maintain composure under pressure, and provide thorough information to colleagues and clients.
Problem Solving & Quality
Detail-oriented with a proactive approach to identifying and resolving complex issues. Escalates concerns appropriately and shares ideas to enhance quality and productivity.
Managing for Results
Capable of working independently and completing projects with minimal supervision. Manages multiple priorities efficiently and adheres to company policies and SOPs.
Leadership & Initiative
Displays a positive, accountable, and leadership-driven mindset. Acts according to the company’s mission and values. Trains and mentors others. Able to lead in the supervisor’s absence.
Physical Demands
Must be able to frequently lift 50–60 pounds; move heavy equipment/tools; access confined spaces; walk and climb stairs and ladders regularly.
To support a safe and secure workplace, all offers of employment are contingent upon the successful completion of background screening, drug testing, and driving record review where applicable.
Inframark is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, age, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against based on disability.
Learn more about us at Utility Districts - Inframark
See All 12 Mid Level Water/Wastewater Engineer Jobs
Find roles that match your experience and apply in just a few clicks.
Find JobsMid Level Water/Wastewater Engineer Job Market
Who's Hiring



Top Industries Hiring
- Consulting & Professional Services
- Healthcare & Medical Services
- Staffing & Recruiting
- Government & Public Sector
Mid Level Water/Wastewater Engineer Jobs: Frequently Asked Questions
How do I get a mid level water/wastewater engineer job?
Position yourself around project ownership rather than task execution. Highlight designs you led, regulations you interpreted, or infrastructure challenges you resolved with limited direction. Certifications like PE licensure or EIT status signal readiness, and experience with hydraulic modeling software, permitting processes, or construction oversight makes applications stand out at this stage.
Which companies hire mid level water/wastewater engineers?
Companies hiring mid level water/wastewater engineers right now include HDR, MEB, and Jobot, based on current listings on Migrate Mate as of November 2026. Engineering consulting firms, municipal utilities, and infrastructure contractors are especially active at this experience level.
Are there remote mid level water/wastewater engineer jobs?
Yes, though most roles in this field involve some on-site presence for site assessments, inspections, or client meetings. About 33% of mid level water/wastewater engineer openings are remote or hybrid as of November 2026, with hybrid arrangements most common at consulting firms where desk-based design work can be done off-site.
How do I move up to a mid level water/wastewater engineer role?
Moving from entry level to mid level means building a record of independent technical contributions over your first few years. That includes leading portions of projects, deepening expertise in areas like treatment process design or collection system modeling, earning your EIT or pursuing PE licensure, and demonstrating that your work requires less review over time.
Which industries hire the most mid level water/wastewater engineers?
Mid Level water/wastewater engineer roles concentrate in Consulting & Professional Services, Healthcare & Medical Services, and Staffing & Recruiting, based on current listings on Migrate Mate as of November 2026. Aging infrastructure, federal funding for water quality improvements, and regulatory compliance requirements across these sectors drive steady demand for engineers at the mid level.