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Barbara Jeffery


Focuses on delivering transformative organization journeys to change organizations and individuals as people and leaders

Barbara is a partner in the London office and a leader in our People & Organizational Performance Practice in the UK. She focuses on delivering transformative organization journeys—journeys that change organizations and individuals as people and leaders.

Barbara has more than ten years of experience in organizational design, culture and change, leadership development, and HR function design in the context of transformations, mergers, separations and IPOs. She works across industries, with particular depth in pharmaceuticals and medtech, consumer health, and public sector.

Prior to joining Mckinsey, Barbara worked at a leading global financial services firm, focused on structuring and marketing of fixed income derivatives. She also founded and ran Omoko, a company focused on performance transformations for PE-owned and VC-owned firms in the healthcare space. Barbara also holds a BA in philosophy, politics, and economics from University of Oxford and an MBA with distinction from INSEAD.

Published work

Working nine to thrive,” McKinsey Health Institute, March 2024

Reframing employee health: Moving beyond burnout to holistic health,” McKinsey Health Institute, November 2023

Present company included: Prioritizing mental health and well-being for all,” McKinsey & Company, October 2022

Addressing employee burnout: Are you solving the right problem?,” McKinsey & Company, May 2022

The key role of dynamic talent allocation in shaping the future of work,” McKinsey & Company, September 2021

The future of work: Rethinking skills to tackle the UK’s looming talent shortage,” McKinsey & Company, November 2019

Past experience

JPMorgan Chase
Associate, fixed income derivatives



University of Oxford
BA, philosophy, politics, and economics