Assistant Manager - Group External Reporting

At National Grid, we keep people connected and society moving. But it’s so much more than that. National Grid provides the environment for our teams to thrive and make a real impact. As we drive momentum in the energy transition for all, we are committed to ensuring that every employee feels empowered and engaged. So, join us as an Assistant Manager - Group External Reporting and find your superpower.

As an Assistant Manager – Group External Reporting, you’ll play a pivotal role in shaping the financial story of our business. You’ll take ownership of the Group Cashflow Statement as part of the monthly Group consolidation process, ensuring accuracy and insight at every step.

You’ll manage external reporting for a portfolio of around seven head office companies, including key UK holding entities within our US chain and Treasury financing companies. With transactions flowing through our Treasury management system (Quantum), you’ll collaborate closely with Treasury Finance and Group Tax teams to keep everything running smoothly.

Beyond the day-to-day, you’ll be key in delivering National Grid plc’s half-year results, full-year Annual Report & Accounts (ARA), and 20F filings, preparing critical disclosure notes and operating key SOx controls. This is a role where technical expertise meets real impact—help us tell our financial story to the world.

This role is based out of our Strand office, and we’d hope to see you at least two days per week but you’re welcome to be in the office more often if that would work best for you. We’re happy to discuss any additional flexibility in working patterns or requirements that you feel could help to make this job work for you!

What You’ll Do:

• Lead month-end Group consolidation as part of a small, high-performing team—tracking submissions, resolving validation issues, and partnering with subsidiary finance teams and FP&A to keep everything on schedule.
• Post and improve consolidation journals, working with businesses and the Group Systems Manager to streamline processes and drive automation initiatives.
• Take ownership of the Group Cashflow Statement, including posting cashflow journals, running key validations, and ensuring accuracy for senior stakeholders.
• Deliver external reporting excellence by preparing disclosures for half-year and year-end results, operating key SOx controls, and liaising with auditors to meet statutory requirements.
• Manage Head Office entities, from preparing annual financial statements under FRS 101 to coordinating tax returns, impairment reviews, and quarterly financial reviews.
• Oversee share capital reconciliations, dividend validations, and distributable reserves, ensuring compliance and accuracy.
• Support strategic projects such as group reorganisations, entity liquidations, and finance transformation initiatives, making a tangible impact across the organisation.

What You’ll Have:

• Qualified Accountant (ACA, ACCA, CIMA) with financial reporting and/or external audit of large FTSE-listed companies experience.
• Solid understanding of accounting and reporting standards, with some knowledge of governance, risk, and internal control frameworks.
• Passion for continuous improvement, operational efficiency, and effective information sharing.
• Strong sense of ownership and a drive for results.
• A true team player with excellent stakeholder management skills.

Don’t meet every single requirement? Studies have shown that women and people of colour are less likely to apply for jobs unless they meet every single qualification. At National Grid, we are committed to building a diverse, inclusive, and authentic workplace for everyone. So, if you’re excited about this role but your experience or qualifications don’t match the job description exactly, we encourage you to apply anyway. You might just be the right person for our growing business in this role or another one.

What You'll Get:

Starting salary at £68,000 – subject to experience dependent on experience.

As well as your base salary, you will receive a bonus based on personal and company performance with on target being 15% (with a maximum of 30%) and a competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%. You will also have access to several flexible benefits such as a share incentive plan, salary sacrifice car and technology schemes, support via employee assistance lines and matched charity giving to name a few.

About Us:

National Grid is pioneering ways to decarbonise the energy system; from building interconnectors to allow the UK to share clean energy with our neighbours in Europe, to investing in renewable energy generation in the United States.

As one of the largest investor-owned energy companies in the world, National Grid is at the centre of a clean, fair and affordable energy future, where tackling climate change and reaching net zero is a key priority. National Grid is pioneering ways to decarbonise the energy system; from building interconnectors to allow the UK to share clean energy with our neighbours in Europe, to investing in renewable energy generation in the United States.

More Information:

This role closes on 9 December at 23:59, however we encourage candidates to submit their application as early as possible and not wait until the published closing date as this can vary.

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 the office.

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