No.
Captain Lior Sivan HID was an Armor officer. The soldier in the video is not an officer, as he doesn't have an officer's rank. And he is not a tanker, he is a military photographer. If it wasn't immediately evident by the camera and photography gear he is holding in his hand. He has a "Military photographer" patch on his shoulder.
From the video:
Examples for this can be seen on the IDF Spokesperson's Unit Wikipedia page
Or from this IDF Facebook post:
IDF combat photographers carry two weapons: a firearm to fulfill a dangerous mission and a camera to share the truth.
Showing and saying that IDF military photographers carry a weapon, just like in the video, in addition to their camera.
Just for reference, this is what an IDF Captain rank looks like on this type of uniforms in full gear (from left to right, Lieutenant, Lieutenant, Captain), notice the completely different color.