OpenX, a leading provider of digital and mobile advertising technology, seeks a Senior Site Reliability Engineer responsible for the performance and uptime of various OpenX systems and services. OpenX serves hundreds of thousands of requests per second from thousands of servers across a worldwide datacenter footprint. Experience at large scale is desirable, though we are willing to train people with the right skills and attitude.

You will be responsible for maintaining and improving service uptime and scaling our systems for continued rapid growth. Additionally, this role will handle planned or unplanned maintenance events and execute a consistent software release process. The ideal candidate has experience with large-scale management of thousands of physical servers. Excellent communication skills are required in order to successfully interact with the rest of OpenX Engineering.

Developing and supporting our infrastructure presents many interesting technical challenges. We especially desire candidates with a passion for open-source software and an interest in the latest system architecture trends, for example: Docker, Mesos, or Kubernetes.

Responsibilities include:

• Design, implement, and support high-performance, highly-available infrastructure
• Improve the efficiency and flexibility of our datacenters
• Build and maintain models for growth and capacity planning
• Tune large-scale clusters for optimal performance and efficiency
• Develop technologies for low latency access to very large data resources
• Participate in a 24-hour on-call rotation
• Own the day-to-day health, uptime, monitoring, and reliability of all server infrastructure
• Work closely with engineering, project management, operational, and engineering peers to develop innovative technical tools and solutions.
• Identify tactical issues and react to emerging areas of concern.
• Adhere to the DevOps philosophy by evangelizing communication, collaboration, and integration with software development teams.
• Think long-term and be unsatisfied with band-aids.
• Identify unnecessary complexity and remove it.

Requirements:

• At least three years experience in a SRE/SysAdmin, DevOps, software development, or equivalent role
• Capability to program in at least one language (other than Bash), ideally Python or Perl but Ruby, C/C++, Java, or others are okay
• Solid knowledge of the UNIX command-line and architecture
• Strong knowledge of core protocols and tech such as: TCP/IP, HTTP, DNS, load balancers, distributed file systems, key-value and relational databases.
• Extensive experience with configuration management tools such as Puppet, Chef, Salt, or Ansible is a big plus
• Excellent organizational skills and the ability to work in a fast-paced and hectic work environment
• Capable of technical deep-dives into code, networking, systems, and storage with very bright, experienced engineers
• Demonstrated experience in network and large scale UNIX system troubleshooting and maintenance practices
• Must be willing to occasionally travel to domestic and international data center or office locations.
• Self-starter with the ability to independently identify and act on areas of improvement
• Knowledge and interest in the latest system architecture trends
• Ability to rapidly learn and understand new systems
• Ability to communicate effectively and write accurate, clear documentation
• Humility and Integrity

About OpenX

OpenX is a global leader in digital and mobile advertising technology. OpenX's vision is to unleash the full economic potential of digital media companies. OpenX solutions provide a unique Software as a Service platform by combining ad serving and an ad exchange which includes Supply Side Platform technology. OpenX is backed by leading investors including Accel Partners, Index Ventures, SAP Ventures and Samsung Venture Investment Corporation.

Key Metrics:

• OpenX handles trillions of ad transactions annually
• OpenX Ad Server used by thousands of publishers globally
• OpenX Ad Exchange used by 96% of leading national advertisers and 65% of comScore top 100 publishers
• OpenX provides its full monetization platform to its customers across any connected mobile device, including smartphones, tablets and iPTVs.
• OpenX has private mobile exchange partnerships with Samsung Electronics (Samsung AdHub Market) and Airpush (AirX) and recently launched Native O|X, the first global Real-Time Bidding exchange specifically for mobile-first native ads
• OpenX operates five data centers in the U.S., Europe and Asia
• OpenX has offices in Los Angeles (Headquarters), New York, Silicon Valley, London, Munich and Tokyo

Funding & Key Investors:

• More than $75 million (Series A, B, C, D and E)
• Leading investors: Accel Partners, Index Ventures, SAP Ventures and Samsung Venture Investment Corporation

Recognition:

• Forbes' America's Most Promising Companies: #7
• Deloitte Technology Fast500: #5 overall; #3 in Software; #2 in California
• Inc. 500: #28 in Advertising