we need Linux support.
We utilize Ubuntu 14.04 LTS linux.
In addition to linux, they need to know Postgres. Knowledge of MongoDB is also important.
We also run PHP, Apache2 (going away), Nginx, Memcache, and Gearman.
Knowledge of AWS services and / or SoftLayer would be good.
We need coverage for system administration, network administration, database administration, monitoring and deployments.
We would like 24x7 coverage. The high level environment is LAMP stack with Mongo DB.