Costain Group
Mechanical Project Engineer

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Mechanical Project Engineer
Costain have been appointed by United Utilities as one of 7 partners to Enterprise, delivering £5.5bn of projects in the Asset Management Period 8 (AMP8) between 2025 – 2030, and AMP 9 (2030 – 2035). Our scope is to provide project management, design, construction and commissioning services on design and build schemes throughout the North West and Cumbria region covered by United Utilities. Projects vary in value, covering both infrastructure and non-infrastructure assets on water and wastewater sites with wider Enterprise partners.
We are recruiting for a Mechanical Project Engineer to support the delivery of our United Utilities (UU) AMP8 projects supporting them from outline design through to commissioning and handover. Working across the project lifecycle there will be a mix of office, remote and site-based demand on your time.
You will be working within the wider construction delivery team engaging with designers to challenge and support efficient design development, supporting procurement and managing subcontractor delivery and commissioning both at their locations through manufacture, and on-site during installation and commissioning. Throughout this you will be supporting the development of programmes and budgets and once in delivery, managing works aligned to these whilst also proactively monitoring safe and high quality delivery.
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You will be able to communicate and engage with a variety of stakeholders confidently and maintain relationships with all stakeholders and partners (from internal teams to secure specialist inputs, site operators, Client teams and supply chain partners).
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.
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For more details please go to the Disability Confident website: https://www.gov.uk/government/collections/disability-confident-campaign [https://www.gov.uk/government/collections/disability-confident-campaign]
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