wastewater engineer
Wastewater engineers design sewage systems and networks for the removal and treatment of wastewater from cities and other residential areas. They design systems which are compliant with environmental standards, and aim to minimise impact on the ecosystem and on citizens in the vicinity of the network.
wastewater engineer wastewater engineers design sewage systems and networks for the removal and treatment of wastewater from cities and other residential areas. The role shows moderate AI exposure (0.50 on a 0-1 scale) — some tasks are being automated but the role adapts. The most in-demand skills for the role include engineering principles, hydraulic fluid, technical drawings, hydraulics, engineering processes.
Pay in the UK
UK: median £51,366 a year for Civil engineers (ONS ASHE 2025, full-time)
Middle half of full-time jobs: £39,802 to £65,000 a year
UK jobs are grouped differently; this is the closest UK occupation group (ONS SOC 2020 2121). ONS rates this estimate reasonably precise. 2025 provisional figures; ONS revises them a year later. Source: ONS Annual Survey of Hours and Earnings (Open Government Licence)
Pay in India (occupation group)
Average monthly earnings of salaried employees in the occupation group “Professionals” in India, from the Government of India's Periodic Labour Force Survey (January–December 2025). It covers everyone in this group, not only wastewater engineer, and it is not US pay converted to rupees.
Source: MoSPI (Government of India), Periodic Labour Force Survey Annual Report 2025, Table 51 — average wage/salary earnings of regular wage/salaried employees, NCO-2015 division 2. Official India data gives one average per occupation group: there are no official India figures for single careers, experience levels or cities. Read the report
Top skills
Knowledge you'll build
- Engineering and Technology
- Design
- English Language
- Mathematics
- Building and Construction
- Administration and Management
- Physics
- Mechanical
What you'd actually do
- Provide technical direction or supervision to junior engineers, engineering or computer-aided design (CAD) technicians, or other technical personnel.
- Review and critique proposals, plans, or designs related to water or wastewater treatment systems.
- Design domestic or industrial water or wastewater treatment plants, including advanced facilities with sequencing batch reactors (SBR), membranes, lift stations, headworks, surge overflow basins, ultraviolet disinfection systems, aerobic digesters, sludge lagoons, or control buildings.
- Evaluate the operation and maintenance of water or wastewater systems to identify ways to improve their efficiency.
- Design or select equipment for use in wastewater processing to ensure compliance with government standards.
- Design pumping systems, pumping stations, pipelines, force mains, or sewers for the collection of wastewater.
Tools & technology you'd use
Frequently asked questions
What does wastewater engineer do?
Wastewater engineers design sewage systems and networks for the removal and treatment of wastewater from cities and other residential areas. They design systems which are compliant with environmental standards, and aim to minimise impact on the ecosystem and on citizens in the vicinity of the network.
What skills does wastewater engineer need?
The most in-demand skills for this role include engineering principles, hydraulic fluid, technical drawings, hydraulics, engineering processes, types of pipelines. These are the skills O*NET identifies as most important for competent performance.
Will AI replace wastewater engineer?
Our AI-durability model gives wastewater engineer a score of 0.50 on a 0-1 scale (higher = more exposure). That places it at moderate AI exposure — some tasks are being automated but the role adapts. Learning to work with AI tools rather than against them is the path forward.