Family Building Society appoints chief operating officer

Seb held previous roles at Citigroup, Accenture, HSBC Global Asset Management, Barclays, and Lloyds Banking Group, before joining the Bank of England's PRA.


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Friday 18th September 2026

Seb Mrotzek, COO, Family BS

Family Building Society has appointed Seb Mrotzek to the newly created role of chief operating officer.

Seb Mrotzek holds a BA (Hons) in Business Studies from Middlesex University and brings more than 20 years' experience across banking, financial services, fintech, consulting, and financial regulation.

He began his career at Datamonitor in 2002 before holding a number of roles at Citigroup, Accenture, HSBC Global Asset Management, Barclays, and Lloyds Banking Group.

He later joined the Bank of England's Prudential Regulation Authority (PRA) as divisional chief operating officer for banking supervision, representing the PRA at the Bank's Cyber Security Committee and the Change & IT Board.

Seb then joined a fintech venture focused on establishing a new retail bank, before moving to Redwood Bank where he became chief information and technology officer and more recently served as director of operations at Finova.

Seb Mrotzek said: "I am delighted to be joining the Family Building Society. I have been fortunate to work across regulation, banking and financial technology and I understand the importance of resilience, strong governance and maintaining a clear focus on customers.

“The Society stood out to me because of its clear purpose, distinctive position in the market and commitment to helping generations of families achieve their financial goals.

“Mutual organisations have an important role to play in the financial services sector. Mutuality supports long-term decision-making and creates a strong alignment between organisational success and customer outcomes.”

Mark Bogard, CEO of the Family Building Society, added: “We have a reputation for putting members at the heart of our decision making while continuing to innovate and grow. Seb will join our executive committee and will be responsible for leading operational functions and supporting our strategy for sustainable growth, member service excellence, operational effectiveness, resilience and strong governance.”

Rozi Jones - Editor, Financial Reporter

Author:
Rozi Jones Editor, Financial Reporter
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