Mid Level Wastewater Treatment Engineer Jobs
Mid level wastewater treatment engineer jobs go to engineers ready to own projects end to end, guide junior staff, and make technical calls without constant oversight. Openings run predominantly on-site across Consulting & Professional Services, Government & Public Sector, and Energy, with employers like GFT, Kennedy/Jenks Consultants, and Veolia hiring at this level now.
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Inframark's Operations and Maintenance team is an award-winning team that delivers cutting-edge water, wastewater, and public works services to municipalities, utility districts, and industries. We are dedicated to supporting our employees as well as protecting the environment and the communities we serve. You would be empowered to thrive in a dynamic, supportive, and innovative environment. Take the next step in your career and join us at Inframark. 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.
As an Assistant Project Manager with Inframark, you will manage the day-to-day activities of a team providing contract operations, maintenance, and management of wastewater treatment plants.
We are looking for a licensed Wastewater Operator with a Georgia Class 1 or equivalent license, MBR experience, and a background in leadership at a municipal wastewater plant.
RESPONSIBILITIES:
- Develop new plans, programs, and operations to attain higher quality levels of service and/or cost savings over present conditions.
- Plan major capital improvement needs and corresponding revenue sources.
- Prepare annual budget and monitor financial revenue and expense reports to monthly budgeted variances
- Maintain accurate records and prepare reports
- Interview, training, instructing, coaching, and mentoring personnel in work methods
- Assign and schedule work, review for accuracy and clarity
- Administer progressive discipline process to hold subordinates accountable and improve project performance
- Establish and maintain positive working relationships with the project director and client(s)
- Ensure compliance with City, County, State, and Federal regulations and policies
- Other duties as assigned.
- High school diploma, college degree preferred
- Valid driver’s license
- 5 or more years of supervisory and operations experience in Wastewater Operations
- Must have an active state-issued Operator license
- Possess exemplary leadership, communication, and team-building skills
- Strong detail-oriented work style
- Proven experience in making sound financial, technical, and human resources decisions
- Proficient in computer skills, including Microsoft Office applications
PHYSICAL DEMANDS
The work environment is characteristic of an office environment: sitting, standing, walking, bending, and lifting are required to perform job responsibilities. The employee must occasionally lift and move up to 50 lbs.
**Reasonable accommodations may be made to enable individuals with disabilities to perform the essential job functions.
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 Operations and Maintenance - Inframark
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Find JobsMid Level Wastewater Treatment Engineer Job Market
Who's Hiring
- GFT6
- Kennedy/Jenks Consultants6
- Veolia2
- Gft USA1

- Inframark1
Top Industries Hiring
- Consulting & Professional Services13
- Government & Public Sector2
- Energy1
- Technology & Software1
- Waste Management & Environmental Services1
Mid Level Wastewater Treatment Engineer Jobs: Frequently Asked Questions
How do I get a mid level wastewater treatment engineer job?
Position your experience around project ownership, not just task completion. Highlight specific systems you have operated or optimized, permits you have supported, and any time you coordinated across teams or guided less experienced engineers. Applications that tie your work to measurable outcomes, such as improved effluent quality or reduced downtime, stand out at this level.
Which companies hire mid level wastewater treatment engineers?
Companies hiring mid level wastewater treatment engineers right now include GFT, Kennedy/Jenks Consultants, and Veolia, based on current listings on Migrate Mate as of June 2026. Hiring at this level comes from municipal utilities, environmental engineering consultancies, and industrial operators running their own treatment infrastructure.
Are there remote mid level wastewater treatment engineer jobs?
Yes, though most roles at this level are site-dependent. About 76% of mid level wastewater treatment engineer openings are remote or hybrid as of June 2026, and those tend to be with consulting firms where design work, permitting support, and client reporting can be handled off-site rather than at a treatment facility.
How do I move up to a mid level wastewater treatment engineer role?
The path from entry level to mid level is built on progressively broader ownership. Early-career engineers grow by taking full responsibility for individual process units, then entire treatment trains, earning sign-off on routine decisions. Deepening expertise in a specific area, such as biological nutrient removal or biosolids management, combined with a clear record of project delivery, signals readiness for a mid level title.
Which industries hire the most mid level wastewater treatment engineers?
Mid Level wastewater treatment engineer roles concentrate in Consulting & Professional Services, Government & Public Sector, and Energy, based on current listings on Migrate Mate as of June 2026. Those sectors drive the most hiring because they operate large, continuously running treatment systems that require experienced engineers who can manage process upsets, lead upgrades, and ensure regulatory compliance without close supervision.