Costain Group PLC
Senior Electrical Designer

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Job Description
This is an exciting new role for a Senior Electrical Designer where you will perform or support the Lead designer position on one or more Projects. Industries can range across Water, Transport and Energy including Green Energy, Nuclear and Oil and Gas.
With projected long term work in Water and Nuclear, you will be responsible for the preparation of specific design documentation for individual projects or proposals, ensuring it is prepared efficiently, accurately and in accordance with the project requirements.
The position is within our Engineering Services Team, who offer engineering services through our engineering hubs in Manchester, London, and Aberdeen for the Water, Energy, Integrated Transport, Rail, Highways, Nuclear, and Defence sectors with over 300 engineers and designers across the UK.
They work with customers as a primary provider of engineering support through ECI and FEED phases to take their project through to detailed design and construction.
Hybrid role, based at our offices on Aviator Way, Manchester, office attendance typically up to 3 days a week, with a flexible approach to home working to promote wellbeing.
Responsibilities
RESPONSIBILITIES
Your responsibilities could involve: Providing safe, practical and economic designs for clients to a high standard of professional competence and in compliance with Company procedures Producing design deliverables such as single line diagrams, block cable diagrams, cable routing diagrams, schematics, equipment layouts and 3D models Production of related documentation including bills of materials, cable schedules and design packs and material requisitions Acting as the Senior Designer on proposals Mentoring and developing less experienced designers Checking of drawings in accordance with Company Procedures. Liaising with other disciplines as required. Ensuring all work is carried out in a manner that will produce a safe and operable design, and that all personnel assigned work in a safe manner; in particular ensuring that all personnel assigned to the worksite are adequately briefed and trained.
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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Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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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.
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Essential
Knowledge, Skills, and Experience
Good knowledge of design working practices and installation requirements of the discipline across a range of industries. Proficient in CAD. Experienced in 3D modelling, ideally experienced in AVEVA PDMS – E3D Experience in Relux or other similar software packages Significant experience with a proven track record as a Electrical Designer on several projects in a similar environment. Knowledge of UK legislation and standards Excellent communication and time-management skills and experience of working within multidisciplinary teams Proven industry experience at all stages of project lifecycle Excellent knowledge of design working practices, UK legislation and standards Highly motivated Good communication skills and confident engaging with colleagues and relevant stakeholders Works with safety and risk management at the forefront of their minds
Desirable
Multiple industry sector experience, including one or more of the following: Water, Nuclear, Pipelines, Highways, Rail, Energy, Green Energy.
Qualifications
Essential
Qualified to City & Guilds or HNC/HND/OND/ONC or equivalent
Desirable
EngTech or I-Eng ICE professional qualification
About Us
Costain helps to improve people’s lives with integrated, leading edge, smart infrastructure solutions across the UK’s energy, water, transportation and defence markets. We help our clients improve their business performance by increasing capacity, improving customer service, safeguarding security, enhancing resilience, decarbonising and delivering increased efficiency. Our vision is to be the UK’s leading smart infrastructure solutions company. We will achieve this by focusing on blue chip clients whose major spending plans are underpinned by strategic national needs, regulatory commitments, legislation or essential performance requirements. We offer our clients leading edge solutions that are digitally optimised through the following five services which cover the whole lifecycle of their assets: future-shaping strategic consultancy; consultancy and advisory; digital technology solutions; asset optimisation and complex programme delivery. Our culture and values underpin everything we do.


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Costain appreciate the time and effort taken when applying for one of our positions but, due to the high volume of responses, we are unable to provide individual feedback on candidates at application phase.
We do share individual feedback following an interview .
A Disability Confident employer will generally offer an interview to any applicant that disclose they have a disability and meets the minimum criteria for the job as defined by the employer.
It is important to note that in certain recruitment situations such as high-volume, seasonal and high-peak times, the employer may wish to limit the overall numbers of interviews offered to both disabled people and non-disabled people.
For more details please go to the Disability Confident website:
https://www.gov.uk/government/collections/disability-confident-campaign
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