Unit Process Design Engineer – Water and Wastewater

SANEARES

. Develop unit process designs for water and wastewater treatment facilities (WTPs/WWTPs, pumping stations, reservoirs, and pump houses), from concept through detailed design .

Posted 11/10/2026contractSão Paulo • BrazilMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing unit process designs for water and wastewater treatment facilities, including hydraulic sizing and technical documentation. Exhibits strong organizational skills and the ability to manage multidisciplinary interfaces while ensuring clear communication and proactive problem-solving.

Highest-signal resume keywords

Unit Process DesignHydraulic SizingTechnical DocumentationSite VisitsMultidisciplinary Coordination

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Water Treatment DesignWastewater Treatment DesignHead Loss CalculationEquipment SelectionDesign Criteria DevelopmentTechnical Specification PreparationCalculation Report ValidationProcess EngineeringSafety ConsiderationsBudgeting Support

Soft Skills

Technical CommunicationOrganizational SkillsProactive Problem-SolvingAttention to DetailAnalytical Approach

Certifications & Qualifications

Degree in Engineering

Industry Keywords

WTPWWTPCivil EngineeringSanitary EngineeringEnvironmental EngineeringRegulatory StandardsConstruction CoordinationUtilitiesIndustrial CompaniesEngineering Solutions

About the role

Key responsibilities & impact

Develop unit process designs for water and wastewater treatment facilities (WTPs/WWTPs, pumping stations, reservoirs, and pump houses), from concept through detailed design
Perform hydraulic sizing of suction and discharge lines, calculate head losses, and select pumps, valves, and accessories
Prepare calculation reports, technical specifications, design criteria, material and equipment lists, and technical documentation for issuance and revisions
Define unit arrangements, layouts, and interconnections, taking operation, maintenance, and safety into account
Ensure coordination with related disciplines (civil/structural, electrical, instrumentation/automation, and process engineering)
Support budgeting and procurement processes by providing technical definitions for quotations, bid evaluations, and requisitions
Lead and participate in on-site technical meetings with clients, internal teams, and suppliers, documenting decisions, outstanding items, and engineering directions
Conduct site visits to collect data, validate assumptions, diagnose existing conditions, and support design decision-making
Address technical questions during construction/implementation and support design adjustments

Requirements

What you’ll need

Degree in Engineering (preferably Civil, Sanitary/Environmental, or a related field)
Practical experience with unit process designs for water and wastewater treatment facilities (WTPs/WWTPs)
Strong command of hydraulic sizing and design criteria (head losses, equipment selection, and internal networks/interconnections)
Experience preparing and validating calculation reports, specifications, and engineering documentation
Availability for site visits and on-site meetings, as required by the project
Technical autonomy, organization, and the ability to manage interfaces
Preferred: experience with the implementation, expansion, or retrofit of WTPs/WWTPs
Preferred: experience interfacing with construction and operations teams, applying engineering solutions to field conditions
Preferred: experience reviewing and coordinating multidisciplinary designs
Preferred: familiarity with the technical standards of utilities, industrial companies, or regulatory agencies, where applicable
Analytical and disciplined approach, with attention to criteria, traceability, and the quality of calculations and deliverables
Ability to organize, prioritize, and manage multiple interfaces
Clear technical communication in meetings and coordination discussions with clients and teams
Proactive approach to anticipating risks and proposing viable solutions

Benefits

Comp & perks

Up to 15 consecutive days off (up to 11 business days)
WellHub (formerly Gympass)
Birthday day off
Co-pay medical insurance
Dental insurance
Life insurance
Birth gift card for children born after the employee’s hiring date
Year-end corporate performance bonus