Assistant Project Manager

Company: Costain Group PLC

Location: Southampton

Posted: April 25th, 2026

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

Essential Qualifications

Desirable Qualifications

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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