Senior Systems Administrator

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 systems planning, documentation, and communication Perl / Python / Go / shell scripting MariaDB / Postgres / SQL database design and performance tuning creating custom monitoring and metric collection open source and commercial firewalls relational database management systems MTA software such as Postfix and Haraka key-value stores such as Redis and Valkey developer support, QA, and testing TCP/IP and related protocols x86-64 and arm hardware The ideal candidate: self-motivated and highly productive passionate about making things better for end users loves learning and teaching others passion for automation makes teammates better resourceful and adaptable 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 craigslist benefits include: 100% paid (including eligible dependents) health and dental insurance craigslist-provided health reimbursement account ($4K-$10K) 3-to-1 match on employee charitable donations (up to 10% of salary) 401(k) matching program (up to 6% of salary), with immediate vesting 4 weeks paid time off; 10 paid holidays wellness stipend (up to $150/month) Please note: Candidates must be authorized to work in the United States without sponsorship. craigslist is an equal opportunity employer. craigslist policy prohibits discrimination based on age, genetic information, marital/domestic partner status, medical condition (including cancer, genetic characteristics, or AIDS/HIV status), mental or physical disability, national origin and ancestry (including language use and holding a driver's license granted under Vehicle Code section 12801.9), race and color, creed, religion, sex (including pregnancy, perceived pregnancy, childbirth, breastfeeding, and related medical conditions), gender, gender identity/expression, sexual orientation, weight, height, military/veteran status, or any other characteristic protected by federal, state, or local laws. #J-18808-Ljbffr craigslist