Senior / Principal Drainage Engineer
Confirmed on the employer's own hiring board on Oct 21, 2026. First seen by Alion on Aug 19, 2026. WSP scores B on the Alion truth index.
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A little more about your role…
WSP are seeking a Senior Drainage Engineers who specialise in Water, Drainage and Environmental Engineering for transportation infrastructure projects to expand the growth of our expertise and technical capability. We support clients and projects throughout the UK & Ireland with a focus on high profile rail, highway, Local Authority and aviation projects, providing drainage designs from concept through to detail.
As part of the role, you will be responsible for:
- Delivery of a wide variety of civil engineering projects, such as highway, rail, infrastructure and site development schemes.
- Delivery of projects from concept through to completion and ensuring they are delivered to a high technical standard, in a timely manner and with commercial success.
- Delivering a broad range of drainage services for the most significant transport and infrastructure projects in the UK & Ireland.
At the more Senior grades you will also:
- Lead client relationships and attend client progress meetings.
- Manage a team of drainage engineers, supporting their technical development and ensuring they are resourced on projects.
Your team
Together, our people make up one of the world's leading engineering professional services consulting firms. We’re dedicated to the communities where we live and work in and propelled by international brainpower. Staying curious is what drives us. Looking at challenges from fresh angles helps us deliver future-ready solutions that break paradigms.
Our national sustainable water management team are technical leaders in the sector and foster a proactive, responsible and collaborative work ethic. The successful candidate will become a key part of this team, dedicated to delivering innovative, lasting solutions to the highest profile challenges faced by our clients.
The role provides an opportunity to shape the future of the drainage team. You will be part of a vibrant and evolving team, with an opportunity to make your mark on the future of the drainage team in WSP.
What we will be looking for you to demonstrate…
- Chartered or Incorporated Engineer and/or degree qualified (role dependant)
- Extensive and proven experience post degree in designing sustainable drainage solutions
- Knowledge and understanding of drainage design principles and solutions to manage infrastructure drainage
- Experience in the use of Civil 3D and/or Causeway Flow software/MicroDrainage
- Proven knowledge of relevant technical standards, UK&I Building Regulations, Design Standards, Codes of Practice and Health & Safety regulations
- Successful management of projects/programmes and teams to meet both quality and commercial targets
- Technical experience in one or more of the following areas:
- Highway Drainage
- Rail Drainage
- Airport Drainage
- Asset Management
- Foul water
- Sustainable foul and surface water drainage design
- Drainage modelling software (Causeway Flow or Microdrainage)
Imagine a better future for you and a better future for us all.
Work on landmark projects around the world and embrace opportunities to make an even bigger impact in the communities you care about. What if you could do the best work of your life and create a legacy for yourself?
With us, you can. Apply today.
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