Assistant Project Manager/ Sub Agent

Company: MWH Treatment

Location: Preston

Posted: April 17th, 2026

Overview

MWH have now been awarded Projects at Dukinfield, Aston-Under-Lyne, Arnfield, Godley, Hyde and Wigan and Skelmersdale across the AMP8 Framework Agreement with United Utilities

We are looking to strengthen our Construction and Project delivery teams with Assistant Project Managers/ Sub-Agents assigned to a project or section within our programme of work.

Reporting to the Head of Construction, Operations Manager or a Senior Project Manager.

Your role will be to work with a Project Manager on a single or portfolio of projects providing support to the PM’s general duties and taking the lead on project governance, supply chain relationships, takeover and client facing outputs. Supporting the development and continuous improvement of the project team and supply chain, striving to deliver enhanced health, safety, quality & environmental outcomes, customer satisfaction and commercial success. The APM acts as the PM’s Deputy and supports the PM in liaison with the Client.

Key responsibilities

Essential

Educated to HND/HNC and vocational professional/management qualifications or transferable role specific experience. Good working knowledge of all relevant H&S legislation and in particular duty holder relationships of CDM. H&S qualification SMSTS/IOSH/NEBOSH Member of relevant professional body (e.g. APM, CMI, ICE) Working towards professional recognition with a chartered body. Experience of the delivery of multi-disciplinary projects. Internal & external stakeholder management. Excellent communicator. Self-motivated, resilient, and tenacious under pressure. Leadership & management skills. Full driving licence.

Desirable

Experience in water treatment plants. Have good knowledge of digital delivery tools.

Technical Competencies

Skilled: 1. Contract Management 2. Governance 3. Budgeting and cost control 4. Risk, Opportunities and issue management 5. Project Planning (schedule) 6. Digital Delivery 7. Procurement (negotiations and management) 8. Solutions development (pre- construction / design development) 9. Client, stakeholder and conflict management 10. Resource management 11. Change management 12. Quality management.

Behavioural Competencies

Skilled: 1. Communication 2. Collaboration 3. Client Focus 4. Striving for Results 5. Integrity, Trust and Respect 6. Coaching and Providing Feedback 7. Leadership.

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