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Proposals Manager (Pre-Construction)

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Job Description

At CMDP+ we believe that people matter. We know that to build successful, creative teams we need a diverse workforce that can deliver new innovative ways of thinking. We provide an environment where you will have the freedom to develop and grow to your full potential.

CMDP+ is looking to strengthen their team with a Pre-construction Project Manager / Proposals Manager for our Southern Water Framework. MWH Treatment and Costain Group are part of the CMDP+ joint venture that will deliver a range of construction schemes to maintain and improve Southern Water's water supply and wastewater treatment works within the South and Southeast regions.

The Joint Venture has been set up specifically to execute the 5-year (2025 - 2030) AMP8 capital delivery framework. We will be delivering a programme of works up to £1bn over the 5-year period consisting of both heavy civil engineering and mechanical and electrical activities.

You will work with a multidisciplinary team to develop technical and commercial proposals for water and wastewater projects, whilst also working with peers across the wider water sector as part of a Customer Solutions function, sharing resource and knowledge as appropriate.

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Responsibilities

  • Working at Project Manager level ; Undertake and discharge roles and responsibilities assigned by Programme Manager: To include:
  • Manage the Pre-award development phase of the project utilizing the CMDP ALP process governance pack.
  • Interface between the Client and the CMDP Design Team to define and agree the project scope. Maintain Contract communication via CEMAR.
  • Interface with the CMDP Project Team to progress all outputs required to complete the pre delivery contract ALP processes.
  • Attend and Chair Workshops and forums to agree project scope.
  • Prepare presentations to provide reporting and updates to the Client and the Senior Leadership Team
  • Attend progress meetings with the Client and appointed Contractors to manage the works and progress pre delivery outputs.
  • Work with the Planning Team to develop programmes, undertake weekly reviews reporting any changes or delays to the Programme Manager and Commercial Team for action.
  • Work with the Commercial Team to forecast budgets, assess actual productivity achieved and review weekly, and reporting any changes to the Programme Manager and Commercial Team.

Qualifications

  • Proven track record and knowledge of the UK municipal Water/Wastewater or other regulated process driven sector(s)
  • Proven experience of developing and creating proven solutions to meet customer requirements
  • Strong verbal and written communication skills
  • Able to effectively manage time and priorities to achieve deadlines
  • Strong leadership capabilities
  • Ability to manage multidisciplinary teams and make decisions when needed
  • Comfortable presenting at all levels, both internally and externally
  • Comprehensive knowledge and use of Microsoft Office Suite
  • Contractual awareness (incl. NEC, IChemE)
  • Experience in managing stakeholder, including client, relationships
  • Bachelor's Degree or equivalent in Process, Mechanical, Electrical or Civil Engineering
  • Water and Wastewater complex plant or systems proposals development experience
  • APM or equivalent project management qualification
  • National Water Hygiene Card
  • Full UK Driving Licence
  • Degree level qualification or equivalent in a related Engineering subject or HND in related Engineering and vocational training in Engineering.
  • Suitable experience in leading activities
  • Understanding of Engineering Principles
  • Knowledge and understanding of construction forms of contract through experience and formal training.
  • Technical knowledge of construction techniques and best practices.
  • Relevant CSCS Card
  • Training in Health & Safety and Environmental management

    Desirable:

  • Degree Engineering or equivalent HND/ HNC
  • Skills may be transferrable from an equivalent Client role, or Design background
  • Degree Engineering or equivalent HND/ HNC
  • Skills may be transferrable from an equivalent Client role, or Design background

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

About the Team

CMDP is a joint venture between Costain and MWHT and delivers a range of schemes to maintain and improve Southern Water's water supply and wastewater treatment works in the eastern half of its region (Kent & Sussex).

Proposals Manager (Pre-Construction)

Costain
Southampton, UK
Full-Time

Published on 02/02/2026

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