Process Engineer — Wastewater Treatment Design - US-Based | Fully Remote

Process Engineer — Wastewater Treatment Design - US-Based | Fully Remote
We're partnered with a water and wastewater consultancy hiring a Process Engineer to lead treatment process design on municipal and industrial projects, fully remote. This is a specialist process seat; mass balances, biological modeling, aeration and solids handling. It is not a general civil role with a process label on it.
Suited to someone around five years in who wants to go deeper on process rather than broader on delivery.
What you'll do
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 environment
EIT / 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!

Work arrangement
Yes