I have no idea what employs 270,000 people in that place but now that you’ve asked I’ll have to look it up.
According to Wiki:
“Yakutsk is responsible for a fifth of the world’s production of diamonds,[6] and is home to ALROSA and other mining companies. The city is also home to a significant food industry, to tanneries, to sawmills, and to factories for building materials.[6]
Yakutia Airlines has its head office in the city.”
Lots of mining, fishing, milling, and, some industry. Decent looking town from the pictures. Decent enough looking town from the pics.
What the devil do they heat with???