Costain Group PLC
Graduate Electrical Engineer

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Job Description
At Costain, we work together to shape, create, and deliver pioneering solutions that transform the performance of the UK’s infrastructure ecosystem across energy, water, transportation, nuclear and defence markets.
Costain’s engineering team are the technical heart of the business, working together with our project delivery teams to translate client challenges into robust solutions.
The Electrical Engineering discipline primarily works on Energy Transition & Resilience, Nuclear and Municipal Wastewater Treatment projects across the full engineering project lifecycle including Feasibility, Concept, FEED and Detailed Design project phases.
With a strong presence in a number of established decarbonisation Industrial Clusters and long-standing relationships with energy producers, we are well positioned to design and deliver the projects that take the UK on the path to Net Zero.
The roles will be based at either our Manchester office or London office. Please specify your preferred location on your job application.
About The Role
This role is for a Graduate Electrical Engineer to work in the Manchester based Electrical Engineering team which provides Electrical engineering expertise to major projects and Feasibility, Conceptual and Front-End Design studies for the Energy & Nuclear Sectors.
The successful candidate will join the Graduate Development Program which is accredited by the Institute of Engineering Technology and is designed to equip graduates with the skills and experience required to take them forward in their career with the company.
As a Graduate Electrical Engineer, you will be assigned a mentor to provide support in your professional development and to guide you towards chartership. The training program provides “On the Job” technical development with graduates working on real work assignments under supervision and rapidly taking on responsibility for design work across the full project lifecycle within multi-disciplinary project teams.
Costain’s Graduate Development Programme
By joining our 2-year Graduate programme, you’ll get the best of both worlds—great technical development and exciting opportunities to grow your personal confidence and leadership skills. You’ll be working alongside your team to deliver standout, best-in-class projects across the infrastructure sector, all while learning and building your career step by step.
The Graduate Development Programme (GDP) is also a fantastic chance to meet and network with other graduates joining us at the same time. You’ll connect with people across different projects and disciplines throughout the UK, creating a supportive community from day one. Throughout the 2 years, you’ll come together both in person and virtually to take part in engaging modules and activities such as “Growing your Career,” “Costain In Action,” and “Group Coaching.” These sessions are designed to inspire you, challenge you in the best way, and help you get the most out of your programme.
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?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than 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.
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Your line manager will be fully on hand to support your learning, and you’ll have plenty of opportunities to talk through how you can put what you’re learning into your everyday work.
We also strongly recommend getting involved with our Graduate and Apprentice network (GRaAPs). It’s a brilliant way to meet other Early Careers members, discover what’s happening across different teams and projects, and explore areas of the business that genuinely interest you—helping you shape your future learning and direction.
And as a graduate, you’ll have the chance to help influence and shape future recruitment programmes and early careers opportunities—making a real difference to what comes next for future intakes.
Security Clearance
Please note that this role will include work within our Nuclear sector and you will be required to obtain and maintain security clearance of at least Security Check level (or SC clearance). To satisfy the requirements, you will need to have been a legal UK resident for a minimum of 5 years and be able to successfully complete the vetting process.
Responsibilities
The design work undertaken by Graduate Electrical Engineers is varied and assignments can include work across all project phases including Feasibility Studies; Conceptual Design; Front End Engineering Design (FEED); Detailed Design and Site Activities
Study Work can include technology selection, power supply identification, power system optioneering and input into project schedule and cost estimates; basis of design preparation and technical report preparation FEED and Detailed Design activities include: development of electrical load schedules and single line diagrams, cable and equipment sizing calculations, power system studies, earthing and lightning protection studies, design philosophies, equipment specification; 3D modelling of electrical equipment, production of all required drawings such a layouts, installation details and schematics, design assessments including HAZOP and preparation of operating instructions and installation scope of works Business rotations into other business functions may form part of the graduates development plan in order to provide further breadth of experience which can include: Business Development; Marketing, Project Engineering; Construction; Commissioning; Design HSE; Proposals and Work Winning
Qualifications
- You will have or are expected to achieve a good result in Beng or MEng in an IET accredited Electrical Engineering degree or similar.
- Ability to achieve security clearance for work in the nuclear sector
- While the role will be predominantly based in our South Manchester Office, mobility to work on secondment to any of our offices or project sites is required - Full UK Driving Licence is required
- Demonstrate a passion for Costain's Carbon Net Zero targets
- IT proficient including MS Word and Excel
- Good verbal and written communications skills and the ability to work well within a multidiscipline design environment
- Analytical and problem-solving skills
- Strong work ethic with the ability to produce accurate work to strict project deadlines
- Excellence at building and maintaining positive relationships with all people, regardless of their background
- A willingness to learn
- Excellent organisation and time management skills
- The ability to thrive under pressure
- The ability to empathise and communicate
- Flexibility to work on various projects over the 2-year programme in different locations)


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Please note that if you are invited to interview, we will require you to produce your passport and/or right to work documentation. As some of our project sites are based in remote locations, it is worth noting that you will be required to have the ability to travel to site
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.
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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