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Work Background
AmplitudeDistinguished Engineer
Mar. 2022 - Nov. 2024San Francisco Bay AreaBuilt delivery and compute platform based on Kubernetes, GitHub Actions, Argo Workflows, Kustomize, ArgoCD, and other cloud-native tooling.
PinterestSRE Technical Lead
Dec. 2019 - Mar. 2022Palo Alto, CAOrganized senior technical leader council. Deeply involved in using incident management processes to enable institutional learning. Ran Code Yellow process to rescue an HBase-based service in crisis.
Palo Alto NetworksSenior Cloud Architect
Jan. 2018 - Nov. 2019Santa Clara, CABuilt and managed dozens of Kubernetes clusters from the ground up. Ansible was used for configuration management. Consulted with application engineering teams on how to port VM-based applications to Kubernetes native. Drove the evolution of Big Data pipelines to more modern technologies and increased observability. Kubernetes, Kafka, Prometheus, Elasticsearch, Hadoop.
SAPAltiscale -- Head of Operations
Sep. 2016 - Jan. 2018Palo Alto, CAContinued as Head of Operations following acquisition by SAP. Built out Hadoop-as-a-service product in a German data center in two weeks.
AltiscaleSite Reliability Engineer, Head of Operations
Sep. 2012 - Jan. 2018San Francisco Bay AreaHired and trained a global team of SREs to support Hadoop-as-a-service product 24x7. Characterized performance of Hadoop clusters built on commodity hardware and high bisection bandwidth networks to produce an accurate cost model for the service. Engineered and built two data centers for the Hadoop-as-a-service product. Automated capacity management of dedicated customer clusters.
LinkedInStaff Site Reliability Engineer
May. 2012 - Sep. 2012Mountain View, CAManaged the composition of multiple web applications into a unified website using Apache Traffic Server and HAProxy.
Yahoo!Service Engineer, Principal
Mar. 2010 - May. 2012Sunnyvale, California, United States• Converted 40,000 Linux servers (1000 networks) from publicly routed IP addresses to RFC1918 addresses
• Identified BIOS defect on 12,000 servers, worked with the vendor to provide a fix, upgraded BIOS on all servers without cluster downtime
• Responsible for administering 40,000 Linux servers, including on-call responsibility
• Responsible for managing, monitoring, and upgrading the world’s largest Hadoop clusters
• Responsible for managing, monitoring, and upgrading Hadoop services such as Pig, HCatalog, Hive, and Oozie
LexmarkSystem Administrator
May. 2001 - Mar. 2010Lexington, Kentucky, United States• Provide compute and network service to Research & Development business areas
• Lead a team of system and network administrators across three countries
• Analyze customer requirements and deliver solutions
• Sit on enterprise-wide Architecture Review Board
• Responsible for monitoring and operating applications 24x7
• Support 500 Unix and Windows systems
• Support 500T storage
• Support 130 network devices
• Automate network device configuration management and auditing
• Automate Unix configuration management and auditing
• Create a Nagios system to monitor 1500 systems and 12,000 services in three countries
• Assist in creating a R&D facility in India
• Operate customer-facing web-based application, including dev, qa, and prod environments
• Received two “Make it Happen” awards and one monetary award
• Attend USENIX LISA (Large Installation System Administration
Conference) annually
• Selected as official blogger for LISA'09 http://blogs.usenix.org/
TEKsystemsSystem Administrator
Mar. 1998 - May. 2001Lexington, Kentucky, United States• Support 20 Unix systems
• Document, monitor, and backup existing systems.
• Assist in the design of a new data center
• Move servers into the new data center
• Ensure all systems were Y2K capable
University of KentuckySystem Administrator
Jan. 1996 - Mar. 1998Lexington, Kentucky, United StatesSystems Analyst/Programmer. • User support, Novell network administration, FreeBSD UNIX administration
• Make suggestions on hardware and software purchasing
• Maintain College of Pharmacy website, maintain Drug Management Review Advisory Board website
• Provide PC connections to TCP/IP-IPX/SPX-AppleTalk network
• Automate College of Pharmacy inventory
• Hardware/software troubleshooting
• Attended "Troubleshooting the Macintosh" seminar
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