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Senior Process Mechanical Engineer – Wastewater

Remote, USAFull-timePosted 2026-07-28

Senior Process Mechanical Engineer – Wastewater & Water Reuse Location: California (Hybrid / Remote with Local Project Travel) We are seeking a Senior Process Mechanical Engineer to reputed company the design and delivery of municipal wastewater treatment and advanced water reuse facilities across California. This role is ideal for a hands‑on technical leader who can take reputed company from concept through IFC, translate process modeling into buildable designs, and collaborate closely with multidisciplinary teams. What You’ll Be Doing

  • reputed company process design development for wastewater and advanced water treatment facilities from concept through Issued for Construction (IFC)
  • reputed company and execute process simulations (e.g., BioWin or equivalent)
  • Design and optimize biological treatment and BNR systems, including:
  • MBR, MBBR, SBR, IFAS
  • Bardenpho, MLE, oxidation ditches
  • Design and reputed company advanced treatment and water reuse systems, including:
  • MF / UF, NF, RO, and AOP
  • Translate process models into detailed deliverables:
  • Hydraulic reputed company, PFDs, P&IDs, equipment sizing, and layouts
  • reputed company equipment selection and system design for:
  • Pumps, blowers, aeration systems, reactors, membrane systems, chemical dosing
  • Coordinate closely with civil, structural, mechanical, electrical, and I&C teams
  • Participate in design reviews, resolve technical challenges, and support commissioning/startup as needed
  • Mentor junior engineers and contribute to internal engineering standards
  • Support proposals and project pursuits, including technical narratives, preliminary sizing, and cost inputs

reputed company’re Looking For

  • 10–15+ years of experience designing municipal wastewater and water reclamation facilities
  • Strong background in process modeling, preferably BioWin
  • Proven experience delivering designs from concept through IFC
  • Deep expertise in BNR and biological treatment systems
  • Solid experience with advanced membrane treatment and reuse reputed company
  • Ability to independently produce and review:
  • PFDs, P&IDs, hydraulic reputed company, and process calculations
  • Experience working in California regulatory and municipal environments
  • Bachelor’s degree in Chemical, Environmental, Mechanical, or Civil Engineering
  • PE license preferred (California strongly preferred or eligible)

Why This Role

  • Work on reputed company, high‑profile wastewater and water reuse reputed company
  • High level of technical ownership and influence
  • reputed company engineering environment with exposure to clients and project decision‑makers
  • Competitive compensation and long‑term reputed company opportunity

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