Assistant Project Manager

Company: Costain Group PLC
Apply for the Assistant Project Manager
Location: Southampton
Job Description:

Assistant Project Manager – Southern Water Framework (CMDP+ Joint Venture)

We are seeking an Assistant Project Manager to join the Southern Water Framework. As part of the CMDP+ joint venture, you will support the delivery of a £1 bn capital programme over five years to enhance Southern Water’s water supply and wastewater treatment works across South and Southeast England.

Responsibilities

  • Assist with and maintain systems for effective planning and scheduling.
  • Support project controls and generate project reports.
  • Maintain project file management with robust version control; organise key project meetings and provide secretariat support.
  • Manage staff as appropriate, including their development.
  • Maintain the stakeholder log and serve as focal point for project responses to external requests for information.
  • Monitor project spend, contribute to budget compilation and maintain an accurate asset register.
  • Maintain risk and issue logs, escalating as appropriate.

Essential Qualifications

  • Degree‑level qualification in Civil Engineering or allied subject, or HND in Civil Engineering with vocational training.
  • Understanding of engineering principles.
  • Knowledge of construction contract law and forms of contract through experience and formal training.
  • Computer competence (MS Word, Excel, document control system, Primavera).
  • Training in Health & Safety and Environmental management.
  • Current driving licence.
  • Water industry experience.

Desirable Qualifications

  • Degree in Civil Engineering.
  • MICE or MAPM qualification.
  • Strong computer skills.
  • Vocational training in project management.

Disability confident employer

A Disability Confident employer will offer an interview to any applicant who discloses a disability and meets the minimum criteria for the job. For more details, see https://www.gov.uk/government/collections/disability-confident-campaign.

About the team

CMDP is a joint venture between Costain and MWHT delivering schemes to maintain and improve Southern Water’s water supply and wastewater treatment works in Kent and Sussex.

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Posted: April 25th, 2026