Uber Technologies Inc. has once again turned to an attorney with Capitol Hill credibility to fill out a role on its leadership team, with an announcement Tuesday it has hired Matthew Olsen, former GC of the National Security Agency, as its chief trust and security officer.

The position has been vacant at the San Francisco-based ride-hailing company since November 2017, when Uber fired former CSO Joe Sullivan for his role in covering up a 2016 data breach that impacted 57 million users.

Olsen will now lead Uber's security team. He's part of an ongoing series of hires aimed to boost public faith in the company, including the recent appointment of former associate deputy attorney general Scott Schools as chief ethics and compliance officer.