Advance TRS
OUTSIDE IR35 Mechanical & Electrical Engineers

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Electrical Design Engineers & Mechanical Design Engineers
Contract | Outside IR35 | Water & Wastewater Sector
Advance TRS are supporting a leading engineering organisation in the appointment of experienced Electrical Design Engineers and Mechanical Design Engineers to support a growing portfolio of major water and wastewater treatment projects across the UK.
This is an excellent opportunity to join a highly respected engineering business delivering innovative treatment solutions across municipal and industrial water projects. With a strong pipeline of secured work, they are looking to engage experienced contract engineers to strengthen their multidisciplinary design team.
The Opportunity
These Outside IR35 contract opportunities offering long-term work on technically challenging projects from concept and detailed design through to commissioning support.
Working as part of a multidisciplinary engineering team, you'll play a key role in delivering high-quality engineering solutions across a range of water and wastewater treatment schemes.
Electrical Design Engineer
Responsibilities
- Produce detailed electrical designs for water and wastewater treatment projects.
- Design LV power distribution systems, MCCs, control panels, instrumentation and associated electrical systems.
- Produce single line diagrams, cable schedules, termination drawings and panel layouts.
- Develop technical specifications and engineering documentation.
- Coordinate designs with mechanical, process and ICA engineering teams.
- Support design reviews, technical queries and project delivery activities.
- Ensure designs comply with relevant industry standards, client specifications and UK regulations.
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
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Requirements
- Proven electrical design experience within the UK water or wastewater sector.
- Strong understanding of LV distribution, MCCs, instrumentation and control systems.
- Experience using AutoCAD Electrical or similar design software.
- Familiarity with relevant British Standards and water industry specifications.
- Ability to work independently within multidisciplinary project teams.
- Degree or HNC/HND qualified in Electrical Engineering (or equivalent).
Mechanical Design Engineer
Responsibilities
- Produce mechanical designs for water and wastewater treatment facilities.
- Design pumping systems, pipework, valves, tanks, pressure systems and associated mechanical equipment.
- Produce GA drawings, equipment layouts and fabrication details.
- Prepare technical specifications and engineering documentation.
- Work closely with electrical, civil and process engineering disciplines.
- Participate in design reviews and provide technical support throughout project delivery.
- Ensure designs comply with industry standards and project requirements.


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Requirements
- Proven mechanical design experience within the UK water or wastewater sector.
- Experience designing treatment plant mechanical systems and process equipment.
- Strong understanding of pumps, pipework, valves and plant layouts.
- Experience using AutoCAD, Inventor, SolidWorks or similar CAD software.
- Ability to manage multiple workstreams within fast-paced engineering projects.
- Degree or HNC/HND qualified in Mechanical Engineering (or equivalent).
If you're an experienced Electrical Design Engineer or Mechanical Design Engineer looking for your next Outside IR35 contract within the UK water sector, please get in touch.
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