Customer Portfolio Strategy Manager

Customer Portfolio Strategy Manager role at National Grid

Hybrid working from office and home

Competitive salary ranging from £60,000 – £74,000

Role involves strategic insights, stakeholder management, and portfolio synthesis

Leadership capabilities and experience in complex infrastructure environments essential

At National Grid, we light up the world by harnessing the unique strengths of our people. Join us as a Customer Portfolio Strategy Manager to be part of a team that's driving forward the energy transition, creating a brighter, more sustainable future for all. Unleash your superpower and bring energy to life.

National Grid is hiring a Customer Portfolio Strategy Manager - This position will allow you to enjoy our hybrid working from office and home

The purpose of the role is to provide evidence based insight across the Customer Development portfolio integrating the outputs from the PMO and wider organisation, enabling effective decision making, prioritisation and delivery confidence across the Customer Development Leadership Team.

The role synthesises complex and fragmented inputs into a clear portfolio narrative; provides constructive challenge where required and strengthens alignment, capability and readiness across stakeholders to improve portfolio visibility and outcomes.

Stakeholder

• Operate as a connector between Infrastructure Development, PMO, CND, and enabling functions.
• Represent Customer Development perspectives in forums when required.
• Act as a key interface between stakeholders, ensuring asks are meaningful, proportionate and understood, and that portfolio realities are fed back into stakeholder priorities.
• Translate standards, governance and reporting requirements into practical expectations for portfolio teams.
• Identify systemic issues across processes, capability or behaviours that undermine portfolio performance and escalated these with clarity.
• Support the Director in managing complex senior stakeholder relationships across functions, portfolios and the wider organisation.

Strategic Insights

• Synthesise information from CND, PMO outputs, and wider stakeholder interactions into a single, coherent narrative on portfolio status.
• Support the Customer Development Director on strategic, portfolio and organisational matters, providing independent challenge and insight to inform executive decisions, trade‑offs and priorities
• Analyse available information, highlight gaps and risks, and support leaders to resolve issues
• Articulate the portfolio-level implications of wider business outputs, e.g. turning data reports into meaningful portfolio insights
• Identify recurring pain points, inefficiencies or failure modes across the portfolio and work with functional leads to address root causes.

Change, Capability & Organisational Effectiveness

• Advise on organisational change impacts and readiness within Customer Development
• Support consideration of capability, capacity and behavioural impacts of strategic choices
• Contribute to shaping how performance, confidence and readiness are defined and discussed at portfolio level.
• Sense‑check readiness for major change, growth or transformation initiatives
• Highlight cultural, capability or structural risks that may undermine delivery confidence
• Continuous improvement, supporting the evolution of portfolio management maturity by reinforcing discipline, clarity and outcome‑focused ways of working.

Although this role has no direct reports, leadership capabilities are essential to manage Matrix-based resources to delivering outcomes on behalf of the Director of Customer Portfolio

Interpersonal, Supervisory or Management

• Significant experience operating in complex infrastructure, portfolio or capital investment environments
• Strong…