craigslist is currently seeking a systems administrator to: assist in maintaining a stable and scalable platform where milliseconds matter provide systems planning, documentation, and communication in a Unix-like / Linux / BSD environment collaborate in designing and extending a configuration, deployment, and monitoring framework manage and maintain multiple MariaDB clusters draw from and contribute to various open source projects meet interesting tech challenges at billion-page-view-per-day scale assist in crafting a development environment for effective code testing and deployment participate in on-call rotation with the rest of the team enjoy a tech-driven, laid-back, idealistic work culture Successful candidates will have excellent troubleshooting skills, deep understanding of computer security issues, and high-level experience in as many of the following areas as possible: very high performance / traffic web architectures configuration management / large scale deployment methods / ansible systems planning, documentation, and communication Linux / BSD / Unix-like systems administration Perl / Python / Go / shell scripting MariaDB / Postgres / SQL database design and performance tuning Apache HTTPD / Mojolicious / Starman creating custom monitoring and metric collection network-attached storage / ZFS filesystem open source and commercial firewalls relational database management systems MTA software such as Postfix and Haraka key-value stores such as Redis developer support, QA, and testing TCP/IP and related protocols x86-64 and arm hardware The ideal candidate: self-motivated and highly productive a data-driven problem solver passionate about making things better for end users loves learning and teaching others passion for automation makes teammates better resourceful and adaptable communicates effectively craigslist offers: an unusually philanthropic company mission and philosophy a small team (~40) of fun-loving, smart, interesting, idealistic people non-garden-variety tech challenges at massive scale a tech nirvana, free from VCs, sales, marketing, biz dev, or pivoting big company stability and benefits -- w/o the dysfunction and despair