Sean Sweda Email & Phone Number

Greater Detroit Area, San Francisco Bay Area

• Responsibilities:
• lead a geographically distributed team of SREs for Cloud Foundry, an open-source cloud computing PaaS
• ensure health of production systems, investigate anomalous behavior and triage outages, shepherd code changes from development to production, develop and enhance automation and monitoring tools
• participate in 24x7x365 on-call rotation, serve as escalation point for unexpected operational issuesAccomplishments:
• originally joined Cloud Foundry as a Senior SRE, elevated to Team Lead within 6 months of hire
• successfully transitioned production deployment and on-call/triage responsibilities to SRE team; created documentation for SRE ramp-up and critical job functions, including prod deployment process/checklist

• Responsibilities:
• manage operations for Email Security Service (cloud-based spam filter, millions of messages/day)Accomplishments:
• implemented monitoring, alerting, and code delivery mechanisms which stabilized service reliability and reduced downtime by an order of magnitude in less than 1 month after taking over ESS
• led effort to establish common Puppet infrastructure for all Barracuda cloud services

• Responsibilities:
• leveraged open-source software, Linux, and commodity hardware architecture to provide horizontally scaled, high-availability infrastructure and services to campus, including:-- ITCS IMAP (mail store for ~80K users.
• directed software development, including both internal projects (e.g. simta, a mail transfer agent) and contributions to open-source community projects such as Cyrus IMAP and OpenLDAP
• managed systems administrators and support staff; maintained servers spread across three data facilities; total annual operating budget of nearly $1 million
• served as escalation point for troubleshooting critical problems and unexpected operational issuesAccomplishments:
• documented achievement of service availability exceeding 99.99%

• Responsibilities:
• 24x7x365 support for critical campus-wide infrastructure and services, including: ITCS IMAP, umich.edu mail routing, UM Online Directory, DNS, DHCP, charged printing
• guided junior staff; diagnosed and resolved operational issues; authored new administration tools
• prototyped new service deployments; created and documented maintenance procedures Accomplishments:
• key contributor to the development of radmind, an award-winning suite of internally developed system management tools (equivalent to CFEngine/Puppet/Chef); diagnosed bugs, suggested features, and established best.
• created prototype radmind templates to manage Solaris OS and transitioned all production services to radmind management; substantially improved system security, reliability and operational efficiency

Proprietor of consulting business focused on the technology needs of small/medium sized companies.