At my last company, about $30k per month when I took over as director of engineering in 2014, but I was able to reduce it to about $20k while increasing the num

At my last company, about $30k per month when I took over as director of engineering in 2014, but I was able to reduce it to about $20k while increasing the number of instances using no upfront cost reserved instances. We ran a crawling infrastructure of about 150 instances and we increased to 200 while reducing the cost. We also had 3 of the largest instance types they had for our database, and 8 large instances serving the app, reporting, api, and alert services.