Transformation Portfolio Office Manager
Fixed Term Contract (2 years)
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.
We deliver safety, warmth, and comfort to homes and businesses. Every role, whether in the office or on the front line, plays a key part in this mission. Here’s how you will contribute…
*Steering Committee preparation (Corporate Services-CSCo, Enterprise Design Authority EDA and Transformation Steering Committee-Trans Co) with stakeholder engagement support, coaching and follow up.
*Wiring of all inputs from enterprise Target operating model work- (eTOM), Business planning and stretch targets into coherent benefits tracking funnel profile across Financial Years.
*Accurate and timely Transformation Office (TO) Directorate Risk tracking across and up to enterprise level, flowing into Synergy system and representation at Risk Review & Challenge Group
*Ability to engage with Assurance and audit teams and address any areas of concern out of assurance reports and suggested improvement areas.
*Input prep and support for Board papers
*Coad and support business units in understanding, preparation across stage gate governance and assurance frameworks.
*Sufficient capacity to understand character and detail and the various portfolios and the variety/complexity of initiatives driving business benefits across SGN
What you will need
*Experience: 4+ years in a portfolio management, PMO lead, or similar role focusing on complex change/transformation. Ideally working for or with Big 4 consultancy
*Skills: High-level strategic thinking, strong stakeholder management, financial acumen (budgeting/forecasting), and expertise in project management standards.
*Qualifications: Certification in PRINCE2, MSP, APMG, or equivalent.
*Tools: Experience with PPM tools and ideally Business Intelligence (Power BI) for reporting and tracking. Microsoft Office suite; Excel, PowerPoint
Common Performance Indicators
*Achieving ROI through monitored benefits realisation.
*Portfolio on track with strategic roadmap delivery and Value bearing milestones.
*Effective management of portfolio-level risks and issues.


Not sure you meet every requirement?
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 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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