GM Cruise plans to hire hundreds of employees over the next nine months, doubling its engineering staff, TechCrunch has learned. It’s an aggressive move by the autonomous vehicle technology company to double its size as it pushes to deploy a robotaxi service by the end of the year. Arden Hoffman, who helped scale Dropbox, will leave the file-sharing and storage company to head up human resources at Cruise.

The GM subsidiary, which has more than 1,000 employees, is expanding its office space in San Francisco to accommodate the growth. GM Cruise will keep its headquarters at 1201 Bryant Street in San Francisco. The company will also take over Dropbox headquarters at 333 Brannan Street some time this year, a move that will triple Cruise’s office space in San Francisco.

“Arden has made a huge impact on Dropbox over the last four years. She helped build and scale our team and culture to the over 2300 person company we are today, and we‘ll miss her leadership, determination, and sense of humor. While we’re sorry to see her go, we’re excited for her and wish her all the best in this new opportunity to grow the team at Cruise,” a Dropbox spokesperson said in an emailed statement.

Prior to joining Dropbox, Hoffman was human resources director at Google for three years.

The planned expansion and hiring of Hoffman follows a recent executive reshuffling. GM president Dan Ammann left the automaker in December and became CEO of Cruise. Ammann had been president of GM since 2014, and he was a central figure in the automaker’s 2016 acquisition of Cruise and its integration with GM.

Kyle Vogt, a Cruise co-founder who was CEO and also unofficially handled the chief technology officer position, is now president and CTO.

Cruise has grown from a small startup with 40 employees to more than 1,000 today at its San Francisco headquarters. It has expanded to Seattle, as well, in pursuit of talent. Cruise announced plans in November to open an office in Seattle and staff it with up to 200 engineers. And with the recent investments by SoftBank and Honda, which has pushed Cruise’s valuation to $14.6 billion, it has the runway to double its staff.

The hunt for qualified people with backgrounds in software engineering, robotics and AI has heated up as companies race to develop and deploy autonomous vehicles. There are more than 60 companies that have permits from the California Department of Motor Vehicles to test autonomous vehicles in the state.

Competition over talent has led to generous, even outrageous, compensation packages and poaching of people with specific skills.

Cruise’s announcement puts more pressure on that ever-tightening pool of talent. Cruise has something that many other autonomous vehicle technology companies don’t — ready amounts of capital. In May, Cruise received a $2.25 billion investment by SoftBank’s vision fund. Honda also committed $2.75 billion as part of an exclusive agreement with GM and Cruise to develop and produce a new kind of autonomous vehicle.

As part of that agreement, Honda will invest $2 billion into the effort over the next 12 years. Honda also is making an immediate and direct equity investment of $750 million into Cruise.

Cruise will likely pursue a dual path of traditional recruitment and acquisitions to hit that 1,000-engineer mark. It’s a strategy Cruise is already pursuing. Last year, Cruise acquired Zippy.ai, which develops robots for last-mile grocery and package delivery, for an undisclosed amount of money. The deal was more of an acqui-hire and did not include any of Zippy’s product or intellectual property. Instead, it seems Cruise was more interested in the skill sets of the co-founders, Gabe Sibley, Alex Flint and Chris Broaddus, and their team.

In 2017, Cruise also acquired Strobe, a LiDAR sensor maker. At the time, Cruise said Strobe would help it reduce by nearly 100 percent the cost of LiDAR on a per-vehicle basis.