Kyiv: Ukraine's IT sector is thriving in spite of the Russian invasion. IT companies shut offices in Kyiv and the eastern city of Kharkiv after Russia invaded Ukraine, reported news agency AFP. Ukrainian engineers found refuge in western Ukraine or neighbouring Poland. "Most tech companies had developed a contingency plan in case of war," reported the news agency quoting Stepan Veselovskiy, the head of the "IT Cluster Lviv" community as saying. IT sector employees could be seen working on their laptops outside a warehouse for start-ups in the western Ukraine city of Lviv.As per Veselovskiy, around there were already around 500 tech companies in Lviv before the Russian invasion. After Russia invaded Ukraine, reportedly 80 percent of the sector is in the western city. One of the IT companies is Infopulse. It provides various digital services mostly to European customers. According to the AFP report, around 300 employees of Infopulse are working from Lviv. The company has offices in one of the few buildings in the city which have a bunker.Also Read: When will Ukraine-Russia war end? All you need to know as Zelensky warns of 'high risk' that talks will end Bunk beds, stable internet connection and generators are provided underground so employees continue to work even where there are air raids. As per the media report, since the Russian Invasion, Infopulse has gained four new customers and last month it created 25 new jobs in the war-torn country. Apart from Infopulse, there are other IT companies which are still working in Ukraine. Russia invaded Ukraine on February 24 this year. Till now over 13 million people have been displaced from their homes due to the Russian aggression. Out of the total people displaced, over six million Ukrainians have fled their country.