Lead Portfolio & Portfolio Engineer

National Grid; United Kingdom; Hybrid; GBP 54,000 - 78,000; Full time

Job summary

A leading energy company in the UK is seeking a Lead Portfolio Engineer or Portfolio Engineer to manage multi-billion-pound investment portfolios that support the transition to low-carbon energy. The successful candidate will play a pivotal role in developing and maintaining portfolio plans, ensuring they align with business objectives. This hybrid role involves collaboration with various teams and report production for senior leadership, all aimed at maximizing value and meeting regulatory commitments.

Benefits

Competitive salary

Contributory pension scheme

Flexible benefits

Qualifications

• Strong stakeholder engagement skills with the ability to influence and negotiate effectively.
• Excellent communication and business writing capability.
• Solid understanding of capital investment planning and portfolio management principles.
• Familiarity with regulatory frameworks such as RIIO.

Responsibilities

• Develop and maintain portfolio plans aligning with business objectives.
• Analyse investment drivers and prioritise projects.
• Produce high-quality portfolio reporting for leadership.
• Collaborate with stakeholders across various teams.
• Support governance processes including cost-benefit analysis.

Skills

Stakeholder engagement

Communication skills

Analytical mindset

Problem-solving

Data analysis

Financial modelling

Job description

About us

At National Grid, we’re not just keeping the lights on, we’re powering a cleaner, greener future. As the backbone of the UK’s energy system, we’re investing billions to modernise and expand our electricity transmission network, enabling the transition to low‑carbon energy and supporting the UK’s net zero ambitions. From cutting‑edge technology to innovative infrastructure projects, we’re shaping a resilient network that connects communities and drives economic growth.

Join us and you’ll be part of a team that thrives on collaboration, innovation, and purpose. You’ll help deliver projects that matter, projects that keep homes warm, businesses running, and renewable energy flowing. At National Grid, your work will make a tangible difference to millions of people every day.

Join us as a Lead Portfolio Engineer or Portfolio Engineer and play a pivotal role in managing multi‑billion‑pound investment portfolios that power the UK’s energy transition.

These roles require a hybrid working approach, with flexibility to work from home, office, and occasional site visits. You’ll typically attend the office twice per month and travel as needed for stakeholder engagement.

Job Purpose

As part of the Infrastructure Development team, you’ll ensure our capital investment portfolio is planned, governed, and delivered effectively.

• Lead Portfolio Engineer: Own the portfolio planning process, driving optimisation and alignment with strategic priorities.
• Portfolio Engineer: Support portfolio analysis, reporting, and governance to enable informed decision‑making and efficient delivery.

In these roles, you’ll influence and shape national, regional and investment strategies for substation upgrades, overhead line reinforcements and cable replacements & installations, projects that underpin the UK’s energy transition. You’ll translate strategic objectives into actionable plans, ensuring our portfolio delivers maximum value while meeting regulatory commitments under RIIO‑T3.

What You’ll Do

• Develop and maintain portfolio plans, ensuring alignment with business objectives and regulatory commitments.
• Analyse investment drivers and prioritise projects to optimise value and manage risk.
• Produce high‑quality portfolio reporting for senior leadership and regulatory submissions.
• Collaborate with stakeholders across engineering, finance, and delivery teams to ensure integrated planning.
• Support governance processes, including cost‑benefit analysis, scenario modelling, and performance tracking.
• Identify opportunities for innovation and continuous improvement in portfolio management.

About You

You’ll bring strong stakeholder engagement skills with the ability to influence and negotiate effectively, complemented by excellent communication and business writing capability. An analytical mindset is essential, with a focus on problem‑solving and continuous improvement. From a technical perspective, you’ll have a solid understanding of capital investment planning and portfolio management principles, along with familiarity with regulatory frameworks such as RIIO and associated governance processes. Proficiency in data analysis and financial modelling tools will enable you to provide robust insights and support strategic decision‑making.

What You’ll Get

Competitive salary:

• Lead Portfolio Engineer: £61,000 - £78,000
• Portfolio Engineer: £54,000 - £68,000

Contributory pension scheme (company double match up to 12%).

Flexible benefits including share plans, salary sacrifice schemes, and employee assistance support.

More Information

This role closes at midnight on 5th January 2026; however, we encourage candidates to submit their application as early as possible and not wait until the published closing date as this can vary.

National Grid Electricity Transmission (NGET) is at the heart of energy in the UK. The electricity we provide gets the nation to work, powers schools and brings energy to life. Our energy network connects the nation, so it’s essential that it’s continually evolving, advancing and improving.

In NGET we are passionate about both operating our network safely and providing highly reliable quality of supply for our customers. At the heart of achieving these outcomes is the effective control and operation of our network.

To find out more about us, please follow the link below:

https://www.nationalgrid.com/electricity-transmission/

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DE & I statement

At National Grid, we work towards the highest standards in everything we do, including how we support, value and develop our people. Our aim is to encourage and support employees to thrive and be the best they can be. We celebrate the difference people can bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds, and offer flexible and tailored support, at home and in…