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Sonia Barquin

Partner, Jakarta
Works with financial institutions in Southeast Asia and across the world to design and launch new digital businesses, digitize operations end-to-end, and collaborate with innovative fintech start-ups

About Sonia

Sonia brings deep expertise in digital banking, including designing and helping to launch greenfield businesses, supporting established banks in end-to-end digitization, and facilitating their collaboration with fintech start-ups. For nearly a decade, she has supported leading banks and other financial institutions across Africa, Asia, Europe, and Latin America.

In helping clients build new digital businesses, Sonia has worked across a number of issues, including digital strategy, IU/UX design, digital marketing and customer acquisition, zero-based process design, IT, and advanced analytics.

Examples of her recent client work include the following:

  • designing and helping to build several global greenfield digital attacker banks, including all areas of the banks’ proposition and operating model, customer value proposition, products, go-to-market strategy, and front-end and back-end operations
  • leading a retail transformation program for a Southeast Asian bank, with a focus on digital channels, customer life-cycle management (CLM), and back-office operations
  • identifying the market opportunity and designing the business model for a disruptive at-scale consumer-lending and small-and-medium-enterprise-lending models in Asia‚ąíPacific, leveraging digital and advanced analytics

In addition to serving clients, Sonia plays an active role in McKinsey’s knowledge creation on digital banking and CLM.

Published work

Future of Asia: The future of financial services,” McKinsey & Company, October 2020

The big boost: How incumbents successfully scale their new businesses,” McKinsey & Company, August 2020

Digital banking in Indonesia: Building loyalty and generating growth,” McKinsey & Company, February 2019

Reaching Asia’s digital banking customers,” McKinsey & Company, April 2018

Building a digital-banking business,” McKinsey & Company, April 2016

Digital banking in Asia: What do consumers really want?,” McKinsey & Company, March 2015

Digital Banking in ASEAN: Increasing Consumer Sophistication and Openness,” McKinsey & Company, March 2015


Columbia Business School, Columbia University

University of Deusto
MA, finance