Design Manager Mechanical (Water & Wastewater Infrastructure)

At Jacobs, we're challenging today to reinvent tomorrow by solving the world's most critical problems for thriving cities, resilient environments, mission-critical outcomes, operational advancement, scientific discovery and cutting-edge manufacturing, turning abstract ideas into realities that transform the world for good. Your impact As a Design Manager Mechanical Infrastructure, you will lead the multidisciplinary mechanical design delivery for complex water and wastewater infrastructure projects, including pump stations, water treatment plants (WTPs), wastewater treatment plants (WWTPs), desalination systems, and associated mechanical/process systems. You will be responsible for driving design integration, technical excellence, quality assurance, constructability, risk management, and programme certainty across all stages of project deliveryfrom concept through detailed and construction design. Working closely with Project Managers, Discipline Leads, and Sector/Regional Leadership, you will plan, coordinate, and assure the technical execution of mechanical design packages, while mentoring and developing engineers across global teams. Key duties include Lead and manage mechanical design for water/wastewater pump stations, treatment plants, and associated mechanical/process systems.Develop project-specific mechanical design strategies ensuring multidisciplinary integration, alignment with project requirements, and risk mitigation.Oversee preparation and coordination of mechanical deliverablesEquipment sizing & selectionMechanical design calculationsPumping system calculations & hydraulic checksP&IDs, equipment layouts, plant general arrangementsMechanical data sheets and specificationsReview and validate vendor documents, datasheets, and shop drawings; ensure integration with overall design.Lead mechanical engineering inputs for Design for DesignBuild (D for DB) and EPC delivery models constructability, staging, installation methodology, O&M requirements.Support and lead HAZOP/HAZID, value engineering, risk workshops, failure mode assessments, and operability/maintainability reviews.Manage and own key design management documentsProject Responsibility MatrixBasis of DesignOverall Design ProgrammeSchedule of DeliverablesDesign Risk RegisterDesign Change RegisterCoordinate with process, civil, electrical, ICA, BIM, structural, and architectural teams for holistic design delivery.Engage with clients through workshops, presentations, design reviews, and technical clarifications.Ensure design outputs comply with quality standards, codes, project specifications, and HSE requirements.Support the preparation of technical proposals, LOE estimates, design execution plans, and project scheduling.Mentor, coach, and provide performance feedback to engineers to strengthen organisational capability.Collaborate with global delivery centres to ensure consistent design practices and effective resource utilisation. We welcome applications from qualified professionals currently based overseas who are open to relocating to India. Relocation support may be provided for exceptional candidates having extensive experience in delivering Design Build water infrastructure projects. Here's what you'll need Key software tools PipeFlo, AFT Fathom/Impulse, WaterGEMS (for hydraulics interface), vendor pump selection softwarePlanning & Coordination Primavera P6, MS ProjectCollaboration ACC, ProjectWise, SharePoint, MS TeamsBIM (exposure advantageous) Revit, Plant 3D, OpenPlant Modeler, Navisworks, Revizto Key Behaviours Builds strong, collaborative relationships across multidisciplinary teams.Confident, approachable leader with strong clientfacing presence.Demonstrates leadership through coordination, clarity, and proactive communication.Encourages teams to develop integrated, constructible, and highquality mechanical design solutions.Organised, disciplined, and able to resolve complex mechanical issues in a timely manner.Champions a strong culture of safety, quality, and innovation.Flexible, dependable, and capable of performing in fastpaced, contractorintegrated environments. Work Experience 15+ years of experience in mechanical engineering design and design management within water/wastewater infrastructure projects.Proven leadership of multidisciplinary teams delivering mechanical design forWater/wastewater pump stationsWTPs/WWTPs and associated process unitsChemical dosing systemsSludge handling systemsHighlift/lowlift pumping systemsTreatment mechanical equipment (screens, clarifiers, blowers, compressors, valves, etc.)Strong understanding of pumping systems NPSH, system curves, pump selection, surge analysis interface, pipework design, and hydraulic analysis.Demonstrated capability in Design for DesignBuild constructability reviews, contractor interface, installation sequencing, technical risk mitigation.Experience coordinating mechanical design within a BIMenabled environment.Strong ability to .