She obtained a BSc degree in Business Administration and Management from Saint Paul's College Lawrenceville, Virginia.
[1][2] After the retirement of Harold Pupkewitz, Namundjebo-Tilahun succeeded him as president of Namibia Chamber of Commerce and Industry (NCCI) in 2010.
[3] Namundjebo-Tilahun is also the chairperson of the SADC Chamber of Commerce and sits on the board of several Namibian companies, including Standard Bank Namibia.
[1] In 2021, documents forming part of the Congo Hold-Up revealed financial links between a Namibian fishing company owned by Namundjebo-Tilahun and alleged illicit funds of former DRC president Joseph Kabila.
[2][6] Her husband Haddis Tilahun, is the founder and executive director of the United Africa Group, the company where she serves as chairperson.