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
• 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 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
• 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

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.