Transformation Portfolio Office Manager

Company: Cornerstone

Location: London

Posted: April 30th, 2026

Transformation Portfolio Office Manager

Fixed term contract

Farringdon | Hybrid | Full Time

Joint-contribution pension from 6% (12% total) – Enhanced maternity & family leave – Life assurance – HolidayPlus – Virtual GP & Employee Assistance Programme plus retail and leisure discounts & many more.

REQ5679

The Transformation Portfolio Office Manager leads the PMO to align change initiatives with strategic goals, overseeing governance, risk, and reporting for a portfolio of projects. They ensure benefits realization, manage resource capacity, and drive strategic transformation, acting as a crucial link between executive leadership and project delivery teams.

Responsibilities

What you will need

Common Performance Indicators

Research shows some people – particularly women and those from underrepresented backgrounds – may hesitate to apply unless they meet every criteria. At SGN, we value diverse backgrounds, experiences and perspectives. If this role interests you but you’re not sure you tick every box, we’d still love to hear from you. You might be just who we’re looking for – now or in the future.

Why SGN?

SGN leads pioneering research and development for a net-zero energy system. Our innovative technologies are transforming the gas industry while keeping people safe and warm. We are an award-winning employer, including CCA Gold Awards for Great Places to Work and Inclusivity and Accessibility, and a proud Gold member of the Armed Forces Covenant.

If you require any accommodations or support during the application process, reach out to us. We're here to help ensure an inclusive and accessible experience for everyone.

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