Senior Linux Systems Administrator
StumbleUpon - San Francisco, CA

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As Systems Administrator you will help run StumbleUpon’s multi-network, multi-operating system environment. You will install, configure and provide primary emergency support for our MySQL database servers. This position also involves ensuring uptime of Stumbleupon’s product and high-availability co-located servers and you will share in on-call duties for emergencies.

In this highly valued role, you will be responsible for managing our storage systems, server and network systems. Your knowledge of Linux administration as well as Cisco Routers will help you diagnose problems, document solutions, customize installations and train others. You will also be responsible for monitoring and trouble-shooting our application-layer services, including Apache web-servers, MySQL databases and Hadoop. Further challenges beyond your day-to-day responsibilities include long-term initiatives such as implementing automation tools, developing new preventative maintenance programs and assisting development and QA with various tools and processes. You will also be responsible for upgrading our existing infrastructure and being the liaison to vendors for server hardware issues.

Required Skills :
3+ years of hands on Linux system administration (Centos/RedHat/Ubuntu).

2+ years of experience with mySQL setup and administration, including backups/restores, configuring replication, monitoring performance and identifying bottlenecks.

4+ years of experience with networking (firewalls, load balancers, switches, routers).

Hands-on experience administering an environment with multiple servers (over 50).

Comfortable writing OS-level scripts in at least one language (bash, perl, python, etc).

Experience and interest in network and server security.

Bachelors Degree in CS or related field required.