Linux System Administrator

Requirement is for an expert level Red Hat Enterprise Linux system administrator with a minimum of five (5) years’ experience. Preferably, a significant amount of this experience will be with Red Hat Enterprise Linux versions 5.10, 6.7, and 7.

The required services could potentially include any system administration task, but the anticipated most common needs will be as follows. These tasks are not listed in any particular order.

-    Installation of operating system security patches -    User account management -    Installation/configuration of backup agent software -    Log review & analysis -    Troubleshooting/resolving operating system malfunctions and performance issues -    File and directory permissions management -    Scheduling cron jobs -    Shell scripting -    Expansion of disk volume sizes -    Working with Oracle DBA personnel to resolve problems that overlap the operating system and database environments -    Restoration of servers from backups, including a complete rebuild of the Red Hat and Oracle environment if necessary.

Though not required, some experience with Oracle and Oracle Application Server will be considered a plus.

Technical Environment

The Linux servers for which this support will be provided host the City’s Oracle-based financial, human resources, payroll, and utility billing systems.  They are scheduled to be replaced by a new ERP system over the next two years. No major upgrades of their operating systems or Oracle are planned during that time, and only security patches which are absolutely necessary will be installed.

The servers are virtual machines, hosted on VMWare.

Server 1 -    Red Hat Enterprise Linux 5.10 -    Oracle 11.2.0.3 -    Oracle 11.2.0.4

Server 2 -    Red Hat Enterprise Linux 5.10 -    Oracle 11.2.0.3 -    Oracle 11.2.0.4

Server 3 -    Red Hat Enterprise Linux 6.7 -    Oracle 12.1.0.2

Server 4 -      Red Hat Enterprise Linux 7

The City will maintain Red Had Enterprise Linux subscriptions for these servers. We will also maintain Extended Lifecycle support for the two RHEL 5.10 servers.