Sr Systems Administrator ( Production )
OpenDNS - San Francisco, CA

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About OpenDNS : OpenDNS is an Internet security company that’s transforming the way IT departments secure their networks, and more importantly, their users. In 2012 OpenDNS launched Umbrella, a new line of cloud-delivered Internet security services that, for the first time ever, allow IT departments to extend security off the network and actually protect users wherever they roam. OpenDNS built Umbrella on top of our rock-solid foundation: the world’s most loved and trusted DNS service that’s used today by 50 million people around the world.

Working at OpenDNS means being surrounded by passionate, intelligent and creative people that are determined to disrupt the Internet security industry with endless innovation, world-class research and unrivaled products and services. It’s a place where the best ideas are quickly transformed into products, features, campaigns and company-wide practices, so it won’t be long before you witness the results of your hard work. But don’t just take our word for it. We’ve seen nearly 100% year-over-year usage growth, have been cash flow positive since 2007, and we carry the endorsement of leading VC firms Sequoia Capital and Greylock Partners and thousands of happy customers.

About the Role: OpenDNS is looking for an experienced Systems Administrator to join the team and help run a global network of servers supporting millions of users. Your role will be to maintain all systems related to provisioning, upgrades, maintenance, monitoring, inventory, etc. This means you should be a systems administrator who has extensive experience administering and operating large infrastructures.We're looking for someone who can hit the ground running and work well in a fast-paced, constantly changing environment.

Help architect a global, 24x7 DNS service handling over 35 billion queries per day

Help automate monitoring, configuration, and provisioning of services

Handle on-call rotation for off-hour support

Work with software development to insure supportable, monitor-able applications

Provide a high quality service to our users.

Education & Experience:
An unbelievably strong sense of integrity and reliability.

The ability to be proactive and aggressive, a self-starter and able to get things done.

Experience running mission critical services that require 24/7/365 uptime.

Experience with Debian Linux and FreeBSD.

Experience in a datacenter environment, racking machines, cabling, cross connects, remote management, etc.

Experience with bash or shell scripting.

Experience with python, perl, or similar scripting language.

Experience with KVM/qemu or other virtualization technology.

Experience with building packages.

Experience with kernel tuning, patching, recompiling and building modules.

Experience with common monitoring tools, nagios, cacti, mrtg, smokeping.

Available to respond and handle after hour issues and be on call.

Experience with administering high-volume MySQL, Memcached, and NoSQL-like services.

Experience with multi-datacenter architectures

Desirable, not required:
Bachelor's degree or equivalent in computer science, math, physics or related field.

Experience debugging hardware issues.

Any kind of networking or routing experience (BGP, peering, etc.).

Experience with amanda, rsnapshot or other backup solution.

Experience with MySQL replication.

Excellent problem-solving abilities.

Good verbal and written communication skills.

Able to grow and adapt to rapidly changing requirements.

Did we mention the perks? Our offices are located just a block away from Caltrain and MUNI in the thriving tech hub of SOMA, San Francisco so you’re surrounded by like-minded people and just walking distance from tons of popular restaurants and cafes. The office is rich with open spaces for collaboration, the latest tech tools and toys and a fully stocked kitchen to help you recharge. Come work with us, and be part of the team that’s revolutionizing Internet security.

No recruiters or principals, please