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Costain Group PLC

Assistant Project Manager

Costain Group PLC

Assistant Project Manager for CMDP+ joint venture. Delivering construction schemes to enhance Southern Water’s supply and treatment works in South and Southeast regions.

Posted 4/17/2026full-timeSouthampton • 🇬🇧 United KingdomMid-LevelSeniorWebsite

About the role

Key responsibilities & impact
  • Assist with and maintain appropriate systems to enable effective planning and scheduling.
  • Assist in maintaining project controls and in producing project reports.
  • Responsible for project file management using robust version control. Organise key project meetings, and provide secretariat support.
  • Management of staff as appropriate, including their development.
  • Assist with maintaining the stakeholder log for internal and external stakeholders. Act as the focal point for project responses to external requests for information.
  • Assist with the monitor of project spend and contribute to the compilation of budgets. Maintains an accurate asset register for the project.
  • Assist with and maintain risk and issue logs, escalating as appropriate.

Requirements

What you’ll need
  • Degree level qualification in a Civil Engineering allied subject or HND in Civil Engineering and vocational training in Engineering
  • Understanding of Engineering Principles
  • Understanding of construction contract law and forms of contract through experience and formal training.
  • Computer competence (MS Word, Excel, Document control system, Primavera software).
  • Training in Health & Safety and Environmental management
  • Current Driving Licence
  • Water industry experience
  • Degree in Civil Engineering (Desirable)
  • MICE (Desirable)
  • MAPM (Desirable)
  • Vocational Training (successful experience of project management) (Desirable)

Benefits

Comp & perks
  • CMDP+ is looking for an Assistant Project Manager to join our Southern Water Framework.
  • 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.
  • Individual feedback following an interview will be shared.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
project controlsproject file managementversion controlbudget compilationrisk managementissue managementstakeholder managementengineering principlesconstruction contract lawproject management
Soft Skills
planningschedulingstaff managementcommunicationorganizational skillssecretariat support
Certifications
Degree in Civil EngineeringHND in Civil EngineeringMICEMAPMHealth & Safety trainingEnvironmental management training