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SANEARES

Unit Process Design Engineer – Water and Wastewater

SANEARES

. Develop water and wastewater unit process designs (water treatment plants, wastewater treatment plants, lift stations, reservoirs, and pump stations), from concept through detailed design .

Posted 9/26/2026contractSão Paulo • BrazilMid-LevelSeniorWebsite

About the role

Key responsibilities & impact
  • Develop water and wastewater unit process designs (water treatment plants, wastewater treatment plants, lift stations, reservoirs, and pump stations), from concept through detailed design
  • Perform hydraulic sizing of suction and discharge lines, head loss calculations, and selection of pumps, valves, and accessories
  • Prepare calculation reports, technical specifications, design criteria, bills of materials/equipment, and technical documentation
  • Define unit arrangements, layouts, and interconnections, considering operation, maintenance, and safety
  • Ensure coordination with related disciplines, including civil/structural, electrical, instrumentation and automation, and process engineering
  • Support budgeting and procurement by providing technical definitions for quotations, bid evaluations, and requisitions
  • Lead and participate in in-person technical meetings with clients, internal teams, and suppliers
  • Conduct technical site visits to plants, construction sites, and/or operating facilities to collect data and validate assumptions
  • Clarify technical questions during construction/implementation and support project adjustments

Requirements

What you’ll need
  • Degree in Engineering (preferably Civil, Sanitary/Environmental, or a related field)
  • Practical experience with water and wastewater unit process design (water treatment plants and wastewater treatment plants)
  • Strong command of hydraulic sizing and design criteria, including head losses, equipment selection, and internal piping networks/interconnections
  • Experience preparing and validating calculation reports, specifications, and engineering documentation
  • Availability for technical site visits and participation in in-person meetings, as required by the project
  • Technical autonomy, strong organizational skills, and the ability to manage interfaces
  • Preferred: experience with the implementation, expansion, or retrofit of water and wastewater treatment plants
  • Preferred: experience interfacing with construction and operations teams, applying engineering principles in field conditions
  • Preferred: experience with multidisciplinary review and coordination
  • Preferred: familiarity with the technical standards of utilities, industrial companies, or regulatory agencies, when applicable
  • Analytical and disciplined approach, with attention to design criteria, traceability, and the quality of calculations and deliverables
  • Ability to organize, prioritize, and manage multiple interfaces
  • Clear technical communication in meetings and discussions with clients and teams
  • Proactive approach to anticipating risks and proposing feasible solutions

Benefits

Comp & perks
  • Up to 15 consecutive days off (up to 11 business days)
  • WellHub (formerly Gympass)
  • Birthday day off
  • Copay medical insurance
  • Dental insurance
  • Life insurance
  • Newborn benefit card for children born after employment begins
  • Corporate performance bonus at year-end