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Senior Process Engineer
full-timeLewes

Summary

Location

Lewes

Type

full-time

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About this role

Closing Date

2026-01-30

Job Title: Senior Process Engineer

Location: Falmer (hybrid working + site visits, driving licence is required)

Contract Type: Perm, Full time

Salary: up to £65,000 depending on skills and experience

About the role

Southern Water is currently looking for a Senior Process Engineer to join their Wastewater Process Engineering Team based in Brighton. Working as part of a dynamic and multiskilled team, you will be responsible for providing technical support in producing design deliverables on wastewater treatment projects and supporting site operations.

What you will be responsible for:

You will be responsible in producing process calculations, control philosophies, process flow diagrams, process and performance specifications, P&IDs, compliance and commissioning plans. You will be responsible for leading innovative process solutions which contribute in TOTEX efficiencies.

As part of site operations support, you will be providing expertise in improving site performances, support commissioning activities, implement optimisation measures and troubleshooting wastewater treatment plants.

You will have a demonstrable track record and experience in delivering wastewater treatment process design with good understanding of operations, optimisation and commissioning. You will be responsible for mentoring junior process engineers. You will have a good understanding of developments in the industry and innovation. You will have proven skills in analysing data to evaluate the performance of existing assets and develop process solutions.

Please note that to be successful in this role, you will need to have a background in water/consultancy

             

What you’ll bring to the role:

The successful candidate will have an MEng/BEng/BSc in Chemical Engineering or equivalent. Ideally you will be a Chartered member of a relevant professional institution. This role will provide you an excellent opportunity to further develop your career in a highly supportive and collaborative environment. You will need to have proven and demonstrable experience in delivering waste or water projects and site operation support for UK Water Companies

Southern Water is at the forefront of transforming Britain’s water industry, investing significantly to enhance resilience, sustainability, and service excellence. With £7.8bn planned investment for 2025-30, this is an unparalleled opportunity to join a business committed to delivering a generational shift in the way water services are managed.

You will be joining at a time of significant change, working alongside a highly skilled leadership team with a clear vision for the future. We offer an environment where senior professionals can make a meaningful impact, influence major strategic decisions, and drive long-term value creation

Purpose-Driven

"Our mission is to protect and enhance life through water—and we need passionate people to help us achieve it. If you’re inspired by our purpose and believe you can contribute, apply today. You don’t need to meet every criterion; what matters most is your drive to make a difference."

If this role isn’t quite what you’re looking for but are keen to be contacted about opportunities at Southern Water, you can register your details here: Introduce Yourself (myworkdaysite.com- Introduce Yourself)

Our Commitment to Diversity

We welcome applicants from all backgrounds, identities, and experiences. We do not discriminate based on race, ethnicity, gender, sexual orientation, age, disability, religion, or any other protected characteristic. If you need reasonable adjustments during the recruitment process, please let us know.

#LI-Hybrid #LI-SC1

Other facts

Tech stack
Wastewater Treatment,Process Design,Data Analysis,Mentoring,Optimisation,Troubleshooting,Commissioning,Process Calculations,Control Philosophies,Process Flow Diagrams,P&IDs,Compliance Plans,Performance Specifications,Innovative Solutions,Site Operations,Technical Support

About Southern Water

We are one of the largest water and wastewater companies in the South East of England and thrive on the passion and hard work of more than 2,000 employees.

Together we supply 532 million litres of drinking water every day to more than two million customers and treat and recycle 717 million litres of wastewater for more than four million customers in Kent, Sussex, Hampshire and the Isle of Wight.

Water is essential to every aspect of our lives and we're proud to be at the heart of managing water and wastewater services. We drink it, cook with it and use it to clean. Our water supply faces big challenges - the population of the South East is growing fast, and climate change is bringing greater risk of droughts and more extreme weather. It’s a future of more people needing water and wastewater services, with less water to go around.

So, together with our customers and communities, we aim to provide a sustainable, high-quality water and wastewater service that helps us create a resilient future for water in the South East.

Find out more about us:

Website: www.southernwater.co.uk

Facebook: www.facebook.com/SouthernWater

Twitter: @SouthernWater

Instagram: @southernwatermedia

We use market research tools to improve our service. For more info, visit: https://www.southernwater.co.uk/our-customers/privacy

Team size: 1,001-5,000 employees
LinkedIn: Visit
Industry: Utilities

What you'll do

  • The Senior Process Engineer will produce design deliverables for wastewater treatment projects and support site operations. Responsibilities include process calculations, control philosophies, and leading innovative process solutions.

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Frequently Asked Questions

What does a Senior Process Engineer do at Southern Water?

As a Senior Process Engineer at Southern Water, you will: the Senior Process Engineer will produce design deliverables for wastewater treatment projects and support site operations. Responsibilities include process calculations, control philosophies, and leading innovative process solutions..

Why join Southern Water as a Senior Process Engineer?

Southern Water is a leading Utilities company.

Is the Senior Process Engineer position at Southern Water remote?

The Senior Process Engineer position at Southern Water is based in Lewes, England, United Kingdom. Contact the company through Clera for specific work arrangement details.

How do I apply for the Senior Process Engineer position at Southern Water?

You can apply for the Senior Process Engineer position at Southern Water directly through Clera. Click the "Apply Now" button above to start your application. Clera's AI-powered platform will help match your profile with this opportunity and guide you through the application process. You can also learn more about Southern Water on their website.