Senior Portfolio Analyst

About us

Every day we deliver safe and secure energy to homes, communities, and businesses. We are there when people need us the most. We connect people to the energy they need for the lives they live. The pace of change in society and our industry is accelerating and our expertise and track record puts us in an unparalleled position to shape the sustainable future of our industry.

To be successful we must continue to anticipate the needs of our customers, reducing the cost of energy delivery today and pioneering the flexible energy systems of tomorrow. This requires us to deliver on our promises and always look for new opportunities to grow, both ourselves and our business.

IT and Digital works seamlessly to support and facilitate the National Grid group of diverse energy businesses to deliver technology which revolutionises the way we operate. As we lead the charge towards a carbon-free future, our teams are pioneering disruptive changes to our industry by working with agile methodologies and adopting digital mind-sets to drive efficiency, effectiveness and bring new capabilities for our internal and external customers.

Our work here is critical. National Grid moves energy to millions of homes and businesses in the UK and US and the technology we utilise to complete that task is down to us. This role is at the centre of facilitating the energy revolution and enabling National Grid to continue to be a leading multi-national energy company. It's imperative that you have a passion for energy and solving the problems of today, tomorrow and beyond to ensure a secure, reliable and accessible energy system for all.

This role operates under a hybrid working model and is open to candidates based in the Waltham, MA office. Hybrid work expectations are subject to business needs and company policy.

We're looking for a Senior Portfolio Analyst to help manage and modernize how we plan, analyze, and make decisions about our IT&D capital investment portfolio.

This is a hands-on role with a strategic lens
. You'll own the work that keeps portfolio management running-from data analysis and financial models to stakeholder commentary, reporting, and executive presentations-while looking for better ways to do that work. We want someone who sees fragmented data, manual processes, and ambiguity as opportunities to build something better.

You’ll work at the intersection of portfolio management, finance, analytics, technology, automation, AI, and continuous improvement. The right candidate will be comfortable moving from recurring portfolio deliverables to solving ambiguous problems and building practical, scalable capabilities.

• Build and improve data solutions that integrate, transform, model, and analyze portfolio information from multiple sources.
• Own recurring portfolio deliverables, including financial models, analysis, forecasts, stakeholder commentary, executive presentations, and reporting.
• Develop dashboards, analytical tools, and data products that turn complex information into clear, actionable insights.
• Bring a continuous-improvement mindset to the work-challenging existing processes, simplifying and standardizing where appropriate, and identifying opportunities to automate or eliminate manual effort.
• Translate ambiguous business problems into practical data, technology, process, and analytical solutions-and own those solutions through implementation.
• Explore and apply AI, machine learning, agentic AI, automation, and emerging technologies to improve productivity, analysis, decision-making, and how work gets done.
• Partner across IT&D, Finance, project teams, and other functions to understand needs, solve problems, influence decisions, and drive adoption.
• Support portfolio…