As rumors began to spread of power outages, cyberattacks and tanks rolling into eastern Ukraine, JustAnswer Chief Executive Andy Kurtzig convened his employees in the invaded country on a video conference call to put emergency plans in place.

Just hours before Russia launched its assault on Ukraine with missile strikes in Kyiv and Kharkiv reported by CNN, Kurtzig addressed some 260 employees on evacuation and first aid training.

“Things are so unpredictable and stressful,” Kurtzig told MarketWatch. “There is a state of emergency, with restrictions on travel, a ban on strikes. We are so worried about the safety of our people.” Ukraine President Volodymyr Zelenskyy later declared martial law and ordered “anyone with military experience must report.”For Kurtzig, who runs the roughly 1,000-person online-advice platform from San Francisco, managing a 260-person workforce in Ukraine has been a harrowing experience. Sleep deprived for the past two weeks, he and his staff have worked on plans to protect employees while maintaining operations.It is a scene being repeated at other technology companies with major operations in Ukraine. Officials at Google parent Alphabet Inc. GOOGL GOOG, Amazon.com Inc. AMZN, Snap Inc. SNAP and Oracle Corp. ORCL are confronted with the task of doing business during all-out war.Snap, with offices in Kyiv and Zaporizha, acquired Looksery, a company founded in Odessa, for $150 million in 2015. Snapchat used Looksery’s augmented reality technology to launch Lenses. The company was not immediately available for comment.