Modern Executive Solutions
Acknowledged internationally as a leader in both the financial services and technology industries, Mr. Callahan previously served as Chief Administrative Officer and Global Head of Operations and Technology at Citigroup. He retired from Citigroup in December 2018 and now serves as Executive Chairman of TIME. He also serves on the boards of Tata Consultancy Services, Ltd., WEX, Kore AI, Capco, and Accedian, a Bridge Growth Partners-backed company.
At Citigroup, Mr. Callahan managed a complex set of businesses and services spanning more than 100 countries, a multi-billion dollar operating budget and critical systems infrastructure including the bank’s cyber security initiatives. He most recently led a top-to-bottom transformation of operations and technology, helping move the global bank from a collection of independent and dispersed entities into a lean, fully integrated enterprise. Mr. Callahan also established globally consistent technology standards and governance, and migrated critical functions to an integrated, managed, shared services model. As a result, in 2017, Citi was named by the Gartner Group as the most efficient of all major global banks in generating income per dollar of IT spending. Earlier in his career, Mr. Callahan spent 12 years at IBM, where he held a number of management positions, including director of strategy for IBM Japan.
Along with Modern’s Board, Don is also on the business committee of the Metropolitan Museum of Art, a fellow at the Foreign Policy Association and on the boards of Columbia Teachers College and the American Red Cross New York Region. He holds a Bachelor’s in History from Manhattanville College, where he serves as trustee chair emeritus.
This person is not in the org chart
This person is not in any offices
Modern Executive Solutions
13 followers
We are a cutting-edge strategic talent consultancy focused on building modern organizations, modern leadership teams and modern leaders. We consider “who runs the place” and “how the place is run” in a single set of integrated solutions that delivers far greater value and a far better experience to our clients and candidates. With our focus on redefining the future of modern leadership, we are committed to a relentless effort to increase the diversity and inclusive culture of boardrooms and leadership teams. Every aspect of the Modern process is customized for our clients. Our simple goal is “meeting you where you are.” We will be as flexible, as creative, and as agile as necessary to meet and exceed your most demanding of needs. Modern is functionally focused and takes a cross industry lens to everything we do in order to find the emerging and diverse talent other firms do not. Our proprietary assessment looks at fit and potential while taking into consideration diversity of background / experience. A 100-day onboarding and integration service is embedded into the process with specific DEI capabilities. In order to model and drive behavior, or “walk the walk,” we made a very distinct move. We tied our internal company structure and employee reward system directly to the client and candidate experience. Modern is purpose driven and socially responsible. We are proud to share our profits with specific charities to help foster the next generation of talent and support underserved youth and children with life threatening illnesses. It is time to “get Modern.”