Asset Investment and Performance Manager

Select how often (in days) to receive an alert:

Date: 22 Oct 2026

City:
Cardiff

Address:
Cardiff, Wales, GB, CF3 0LT

Job Requisition Number 9435

Work Type Permanent (Flexible Working Options)

Job Function Operational

Salary Range £55,000.00 - Competitive DOE + Car Allowance £5,000 per annum

Closing Date 23:59 on 22/11/2026

South East Hub (Cardiff / Newport) Hybrid - alternative bases can be discussed.

Summary

This is a high-impact senior role with asset-owner responsibility for over 800 wastewater treatment works and a c.£730m enhancement programme spanning treatment, bioresources, growth, resilience and compliance. You’ll manage a multidisciplinary team at the heart of some of Welsh Water’s biggest investment and performance challenges, shaping how we improve performance, compliance and asset health today while influencing the long-term investment strategy through PR29 and beyond.

What you’ll be responsible for

As our Asset Investment & Performance Manager, you’ll play a key role in shaping investment across our wastewater treatment works asset portfolio, making sure our decisions deliver the right outcomes for our customers, the environment and the long-term performance of our assets.

Reporting to the Head of Asset Management, you’ll lead asset investment planning and decision‐making across the portfolio. You’ll make sure investment needs are identified, prioritised and governed effectively to support regulatory compliance, improve performance and deliver value for money.

As a senior manager, you’ll also act as the asset owner representative for your portfolio, working closely with colleagues across Planning, Engineering, Maintenance, Capital Delivery and Operations to make sure our investment plans are evidence‑based, affordable and deliverable.

• Oversee the development and prioritisation of the asset investment programme, ensuring investment supports serviceability targets, statutory obligations, performance commitment levels and our wider Asset Management Strategy.
• Manage and develop a team of Asset Managers, Performance Specialists and Technicians.
• Act as the asset owner representative for your portfolio, providing direction through solution development, options appraisal, investment approvals and governance.
• Prioritise and recommend asset interventions based on asset health, risk, performance, regulatory commitments and customer outcomes.
• Manage programme budgets within the wider portfolio, ensuring investment decisions are well evidenced and affordable.
• Act as sponsor for capital schemes, producing high‑quality investment papers and supporting effective governance through programme steering groups.
• Oversee asset lifecycle management across the portfolio, balancing performance, risk and cost to support our long‑term asset management strategy.
• Work closely with Operations and Engineering to validate investment needs, understand operational constraints and develop practical recommendations.
• Collaborate with Planning and Finance to make sure investment decisions align with our long‑term plans.
• Develop and monitor performance measures that strengthen asset insight, investment quality and confidence in delivery.
• Lead benefits realisation reviews to assess whether investment and mitigation activity has delivered the intended outcomes and use these insights to inform future investment.
• Identify areas of poor or deteriorating asset performance and work with operational colleagues to develop proportionate investment and mitigation plans.

We’re looking for an experienced asset management or infrastructure investment professional who can combine strong technical knowledge with leadership skills needed to manage people, influence…