We are looking for an experienced Senior Process Engineer to join our team delivering process design across water and wastewater projects.
This role is suited to a process engineer with strong technical capability who enjoys developing effective treatment solutions, taking ownership of design packages and supporting the development of junior engineers.
You will play a key role in delivering high-quality, compliant and efficient process designs, working closely with multidisciplinary teams and clients across a range of projects.
The Role
As a Senior Process Engineer, you will be responsible for delivering process engineering design across projects within the water sector.
Your responsibilities will include:
- Producing design deliverables that meet safety, quality and regulatory requirements
- Developing efficient and practical process design solutions from project scopes and site information
- Communicating design solutions clearly with clients and project teams
- Directing and supporting junior engineers and graduates
- Preparing design risk assessments, reports and technical specifications
- Carrying out mass balances, process sizing and hydraulic calculations
- Preparing process flow diagrams, control philosophies and commissioning strategies
- Ensuring designs comply with relevant technical standards, professional guidance and water company requirements
- Ensuring project design changes are properly implemented and recorded
- Working in accordance with formal design processes and procedures
- Estimating design hours and supporting project planning
- Attending and presenting at HAZOP, ALM, KM and other design review meetings
About You
We are looking for a capable and motivated process engineer with strong experience in the water sector and a desire to continue developing their technical expertise.
It’s essential that you have:
- Around 10 years’ process design experience within the regulated water industry
- Strong understanding of wastewater treatment processes and plant design
- Experience delivering process design for water and/or wastewater projects
- Degree, HND or significant practical experience from technician level progression
- Good IT and digital capability
It’s desirable for you to have:
- Chartered Engineer status
- Experience across both clean water and wastewater projects
- Experience participating in or supporting HAZOP studies (ideally with experience leading elements)
- Full UK driving licence and access to a vehicle
Why Join Us?
We are a growing engineering consultancy delivering projects across the water sector, where engineers have the opportunity to take ownership of their work and develop their careers.
In this role, you will:
- Lead process design packages across projects
- Work closely with multidisciplinary engineering teams
- Support the development of junior engineers
- Build experience toward Principal Process Engineer level
Our Manchester office offers free parking, excellent transport links and access to a fully equipped gym with changing facilities, alongside a collaborative and supportive environment.
We also offer:
- 23 days annual leave + bank holidays, increasing with service
- Option to purchase additional leave
- Chartership mentoring and support
- Regular CPD sessions and industry-led learning
- Monthly team brunches and quarterly socials
- Cycle to Work scheme and free fruit in the office
We are primarily office-based but offer flexible hybrid working arrangements.
Contract roles may be outside IR35
To apply for this job email your details to michaela.garnett@esluk.com.

