Senior Water/Wastewater Engineer

Added 18/09/2026

We are seeking an experienced Senior Water/Wastewater Engineer to lead the planning, design, delivery and technical oversight of complex water and wastewater infrastructure projects. This role will suit a technically strong professional who can manage projects from initial feasibility and concept development through detailed design, construction support and commissioning. You will work with multidisciplinary teams, clients, contractors and regulatory stakeholders to deliver practical, sustainable and cost-effective solutions. Key responsibilities will include preparing and reviewing technical reports, calculations, specifications, drawings and design documentation for water treatment, wastewater treatment, pumping, pipelines, storage, drainage and associated infrastructure. You will provide technical leadership on...

Senior Process Engineer – Water Treatment Team Lead

Added 13/10/2026

We are seeking a Senior Process Engineer – Water Treatment Team Lead to provide technical leadership across the development, design, and delivery of water and wastewater treatment solutions. This role will lead a team of process engineers and specialists, ensuring that projects are delivered safely, efficiently, and in line with regulatory, client, and performance requirements. You will contribute to projects from concept and feasibility through detailed design, commissioning, and operational support. Key responsibilities include developing and reviewing process designs, treatment philosophies, mass balances, process flow diagrams, equipment specifications, control philosophies, and technical reports. You will assess treatment technologies, identify opportunities...

Senior Wastewater Process Engineer

Added 09/10/2026

We are seeking a Senior Wastewater Process Engineer to lead the development, optimisation and delivery of wastewater treatment solutions across a range of complex infrastructure and industrial projects. This role will suit an experienced engineer with strong technical expertise, sound commercial awareness and a commitment to delivering safe, efficient and sustainable outcomes. You will work closely with multidisciplinary teams, clients, contractors and operational stakeholders throughout the full project lifecycle. Key responsibilities will include developing process designs, calculations, technical specifications, process flow diagrams and equipment schedules for wastewater and water treatment systems. You will review treatment performance, identify opportunities for process...

Senior Wastewater Process Engineer

Added 09/10/2026

We are seeking a Senior Wastewater Process Engineer to lead the development, optimisation and delivery of wastewater treatment solutions across a range of complex infrastructure and industrial projects. This role will suit an experienced process engineering professional who can combine strong technical expertise with practical delivery skills, commercial awareness and effective stakeholder management. You will be responsible for developing process designs, calculations, specifications, technical reports and equipment schedules for wastewater treatment systems. Duties will include assessing influent and effluent characteristics, preparing process flow diagrams and mass balances, completing hydraulic and process modelling, and selecting appropriate treatment technologies. You will provide...

Senior Wastewater Process Engineer

Added 09/10/2026

We are seeking a Senior Wastewater Process Engineer to lead the development, optimisation and delivery of wastewater treatment solutions across a range of complex projects. This role will suit an experienced process engineer with strong technical expertise, commercial awareness and the ability to guide projects from concept through to commissioning and operational support. You will work closely with multidisciplinary teams, clients, contractors and regulators to ensure that treatment systems are safe, efficient, compliant and fit for purpose. Your responsibilities will include developing process designs, calculations, mass balances, process flow diagrams, hydraulic profiles, equipment specifications and control philosophies for municipal and...

Senior Water/Wastewater Process Engineer

Added 30/09/2026

We are seeking a Senior Water/Wastewater Process Engineer to lead the development and delivery of innovative water and wastewater treatment solutions across a diverse portfolio of infrastructure projects. This role will provide technical leadership from concept and feasibility through detailed design, procurement, construction support and commissioning. You will work closely with multidisciplinary engineering teams, clients, contractors and regulatory stakeholders to deliver safe, efficient and sustainable outcomes. Key responsibilities will include developing process design criteria, mass balances, process flow diagrams, hydraulic profiles, equipment specifications and technical reports. You will assess treatment technologies, optimise plant performance, review design calculations and drawings, and...

Senior Process Engineer – WasteWater Treatment Team Lead

Added 30/09/2026

We are seeking a Senior Process Engineer – Wastewater Treatment Team Lead to provide technical leadership across the development, design, delivery and optimisation of wastewater treatment solutions. This is a senior role for an experienced process engineer who can combine strong technical capability with effective team leadership, stakeholder management and commercial awareness. You will lead process activities across multiple projects, ensuring that solutions are safe, compliant, practical, cost-effective and aligned with client and operational requirements. Your responsibilities will include developing process designs, calculations, mass balances, process flow diagrams, equipment specifications, control philosophies and technical reports for wastewater treatment systems. You...

Senior Wastewater Process Engineer

Added 06/08/2026

We are seeking a Senior Wastewater Process Engineer to provide technical leadership across the development, design, optimisation and delivery of wastewater treatment projects. This role will suit an experienced engineer with strong process design knowledge and the ability to translate complex technical requirements into practical, compliant and cost-effective solutions. You will work with multidisciplinary teams, clients, contractors and operational stakeholders to support projects from feasibility and concept development through to detailed design, construction and commissioning. Key responsibilities will include developing process design criteria, mass balances, process calculations, equipment specifications, P&IDs, control philosophies and technical reports. You will lead or review...

Senior Water/Wastewater Process Engineer - #2850.13

Added 23/07/2026

We are seeking a Senior Water/Wastewater Process Engineer to lead the planning, design, and delivery of complex water and wastewater treatment projects. This role will support clients and project teams through the full project lifecycle, from feasibility studies and process selection to detailed design, construction support, commissioning, and operational optimisation. The successful candidate will apply strong technical judgement to develop practical, sustainable, and cost-effective solutions for municipal and industrial treatment systems. Key responsibilities will include preparing and reviewing process calculations, design criteria, mass balances, process flow diagrams, equipment specifications, technical reports, and tender documentation. You will evaluate treatment technologies, hydraulic...

Senior Process Mechanical Estimator - Water

Added 18/09/2026

We are seeking a Senior Process Mechanical Estimator specialising in water and wastewater projects to lead the preparation of accurate, competitive, and commercially robust estimates. This role will support the delivery of complex infrastructure schemes, including water treatment plants, wastewater treatment facilities, pumping stations, pipelines, chemical dosing systems, sludge treatment, and associated mechanical process equipment. You will review tender documentation, drawings, specifications, schedules, and contract requirements to develop detailed estimates from first principles. Responsibilities will include preparing bills of quantities, cost plans, labour and plant allowances, subcontractor and supplier enquiries, equipment pricing, and risk and opportunity assessments. You will obtain...

Process Engineer Water/Wastewater (PE)

Added 22/10/2026

Process Engineer – Water/Wastewater (PE) We are seeking an experienced Process Engineer to support the planning, design and delivery of water and wastewater treatment projects. This role will suit a technically capable professional who can develop practical, sustainable solutions and work effectively with multidisciplinary teams, clients, contractors and operational personnel. You will contribute across the full project lifecycle, from feasibility studies and process selection through to detailed design, commissioning and operational support. The position offers the opportunity to work on a varied portfolio of infrastructure and treatment projects, helping to improve asset performance, regulatory compliance and environmental outcomes. Key responsibilities...

Staff Drinking Water Process Engineer

Added 21/10/2026

Staff Drinking Water Process Engineer We are seeking an experienced Staff Drinking Water Process Engineer to provide technical leadership across the planning, design and delivery of drinking water treatment and supply projects. This is an opportunity to influence high-quality engineering solutions that protect public health, improve asset performance and support resilient water services. You will work with multidisciplinary teams, clients, contractors and operational stakeholders to develop practical, compliant and cost-effective process solutions. The role will involve taking ownership of complex technical work, mentoring colleagues and contributing to the continual improvement of engineering standards, tools and methods. Key responsibilities Lead the...

Water/Wastewater Process Engineer (PE)

Added 20/10/2026

We are seeking a Water/Wastewater Process Engineer (PE) to support the planning, design and delivery of water and wastewater treatment projects. The successful candidate will provide technical expertise across the project lifecycle, from feasibility studies and process selection through to detailed design, construction support, commissioning and operational performance reviews. You will work on a range of schemes involving drinking water treatment, wastewater treatment, pumping stations, storage, sludge processing and associated infrastructure. Key responsibilities will include developing process design basis reports, mass balances, process flow diagrams, piping and instrumentation diagrams, equipment specifications, hydraulic calculations and technical schedules. You will prepare and...

Wastewater Process Engineer

Added 14/10/2026

We are seeking a Wastewater Process Engineer to support the design, optimisation and delivery of wastewater treatment solutions across a range of industrial and municipal projects. The role will involve developing effective, compliant and commercially viable process solutions from concept through to commissioning, while working closely with multidisciplinary engineering, operations and project teams. Key responsibilities will include preparing process designs, calculations, mass balances, process flow diagrams, equipment specifications and technical reports. You will assess treatment performance, identify opportunities for process improvement, and contribute to the selection and sizing of equipment such as biological treatment systems, clarification units, filtration, sludge handling...

Wastewater Process Design Engineer - USA

Added 06/10/2026

Wastewater Process Design EngineerLocations: New York (Various States) Salary: Up to $150,000 + Bonus + Excellent BenefitsThe OpportunityOur client, a highly respected engineering consultancy, is seeking an experienced Municipal Wastewater Process Design Engineer to join its growing Water Infrastructure team.This position offers the opportunity to lead the design and delivery of complex municipal wastewater treatment projects, working alongside multidisciplinary teams on critical infrastructure that supports environmental sustainability and community development.The successful candidate will play a key role across the full project lifecycle, from feasibility studies and process design through to construction support and commissioning.Key ResponsibilitiesLead municipal wastewater treatment process design...