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Mechanical Project Engineer

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Onsite

Mechanical Project Engineer

Costain

Mechanical Project Engineer

Skills

Process ImprovementSupply Chain

14 days ago

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Important information


Contract type:

Permanent, Freelance / Contract

Location:

Sale, UK

Work mode:

Onsite

Published on:

12 October 2026

What they need


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 project at Sale, 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.

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).

  • Responsibilities: Proactively promote health, safety and wellbeing in every aspect of design and delivery
    Manage mechanical packages, design and installation and all necessary coordination
    Support relevant HAZOP/HAZCON and wider project meetings as required
    Collaborate with the wider engineering team to ensure a robust and realistic sequence of construction, programme and budget, of the whole project. You will support the development of mechanical aspects of this and the interfaces with wider delivery
    Co-ordinate with the pre-construction, delivery and wider teams to develop compliant, safe, considered solutions and address technical challenges
    Champion high quality delivery from the outset of design; developing processes, systems and initiatives to drive a high quality, right first-time culture
    Ensure good working relationships are established with site operating teams; our supply chain partners and wider stakeholders.
    Provide accurate and timely project performance reports, ensuring projects are on track and contract requirements are met; sharing and celebrating success and developing improvement plans and implementing mitigation strategies as required
    Ensure appropriate permits, records and checks are undertaken through installation to meet contract requirements
    Collaborate with the wider Costain framework team (inc supply chain) to support efficient and effective delivery to drive continuous improvement

    Knowledge, Skills and Experience

    Essential

    Experience of delivering Mechanical packages across the project lifecycle in a collaborative delivery environment

    Ability to engage and build strong relationships with stakeholders, motivating, influencing and striving for mutual success

    Excellent knowledge of relevant regulations including but not limited to Construction Design & Management Regulations and the Costain Way Requirements in respect of temporary works, lifting, commissioning and handover

    Able to understand relevant engineering technical standards

    Package management experience and contract awareness to effectively manage subcontract teams

    Solution focussed and passionate about improving performance in the sector through best practice, process improvements and continuous improvement practices

    Able to work and learn quickly in a fast paced, fun and dynamic environment

    Care about doing a great job and exceeding expectations with the quality of what you do

    Flexibility and adaptability to be able to respond rapidly to unexpected events, having the ability to shape our responses appropriately

    Desirable

    Water industry experience

    Bio-resources experience

    Experience supporting multidisciplinary teams over multiple locations

    Experience of working with both construction and design teams

    A personal drive for continued professional development

Qualifications: Relevant mechanical engineering or project management qualification
CSCS
Full UK Driving Licence

#LI-JA1

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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