Meredith Berger will take over Wednesday for James Geurts, the man who is currently performing the duties of the undersecretary of the Navy.
Geurts, who has held the post since February, posted a letter earlier this month announcing his retirement from government, effective Aug. 28.
Like Geurts, Berger has not been confirmed by the Senate to hold the position officially and so will "perform the duties" of the role. She was sworn in as the assistant secretary of the Navy for Energy, Installations & Environment on Aug. 5.
When Geurts announced his retirement, the Navy was without confirmed leadership in either of its top two posts. However, Del Toro was confirmed a few days later and sworn in on Aug. 10.
The service did not immediately reply to questions about when a permanent undersecretary will be named.
Previously, Berger served as the deputy chief of staff to the secretary of the Navy from 2014 to 2017 before becoming a senior manager for Microsoft's Defending Democracy Program. Having grown up in Florida, she is also the sponsor of the Fort Lauderdale, an amphibious transport dock ship.
-- Konstantin Toropin can be reached at email@example.com. Follow him on Twitter @ktoropin.