Process Engineer — Wastewater Treatment Design - US-Based | Fully Remote
Process Engineer — Wastewater Treatment Design - US-Based | Fully Remote
Posted yesterday
SENIORITY
Lead
About the role
- Lead process design for wastewater treatment facilities: preliminary treatment, primary and secondary clarification, biological treatment, disinfection, and solids handling
- Design and evaluate biological nutrient removal systems; nitrification/denitrification, bio-P, MBR, IFAS, MBBR, SBR, and conventional activated sludge
- Build and calibrate process models in BioWin or GPS-X; run whole-plant simulations, sensitivity analyses, and future-condition scenarios
- Develop mass balances, load projections, and process design criteria; size and select unit processes
- Design aeration systems and support blower, diffuser, and equipment selection with vendors
- Design solids handling trains: thickening, anaerobic and aerobic digestion, dewatering, and biosolids management
- Produce hydraulic profiles, PFDs, P&IDs, process narratives, and equipment specifications
- Support pilot studies, sampling programs, and plant performance evaluations
- Prepare facility plans, basis of design reports, and state regulatory and NPDES permitting submittals
- Provide startup, commissioning, and process optimization support; troubleshoot operating plants
- What you'll bring 5+ years of wastewater treatment process design in a consulting environmentEIT / PE license, or sitting within 12 months
- Demonstrated BioWin or GPS-X modeling capability, this is a core requirement, not a nice-to-have
- Strong grounding in activated sludge kinetics, SRT-based design, nutrient removal chemistry, and digester performance
- Experience with effluent limits, permit compliance strategy, and state regulatory review
- Comfortable owning technical scope independently and writing clearly for clients and reviewers
- If you think you are good fit for this role then please click, Apply!
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
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Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.
