Head Student System Administrator @ BYU Head Student System Administrator for the BYU IT Major's network. Responsible for maintaining the network and the labs. From July 2010 to September 2012 (2 years 3 months) Resident Assistant @ BYU Housing Services Illustrated leadership and interpersonal skills by mentoring 42 students through their freshman year at BYU. Planned and...
Head Student System Administrator @ BYU Head Student System Administrator for the BYU IT Major's network. Responsible for maintaining the network and the labs. From July 2010 to September 2012 (2 years 3 months) Resident Assistant @ BYU Housing Services Illustrated leadership and interpersonal skills by mentoring 42 students through their freshman year at BYU. Planned and executed bi-monthly informational programs for students living in May Hall. From July 2009 to December 2009 (6 months) Customer Service Representative @ Atlas Communications Resolved Customer Concerns. Coordinated installation and repair of company satellite systems. From January 2006 to July 2006 (7 months) Senior Site Reliability Engineer @ LinkedIn Focusing on automating, optimizing, and scaling LinkedIn's new and improved Social Graph database.- Created Fossor, a plugin-oriented Python tool and library for automating theinvestigation of broken hosts and services which was open sourced and featuredon LinkedIn’s engineering blog- Designed and taught an ongoing bootcamp skills course for new SRE hires atLinkedIn- Created Tachyon, a traffic prediction tool that uses machine learning toautomatically recognize distinct traffic patterns and allow the site to pre-cache theresults of future queries before they are sent (reduced cache miss rate by 68%,lowering latency to 1 ms for predicted calls) From October 2016 to July 2018 (1 year 10 months) Mountain View CaliforniaSite Reliability Engineer @ LinkedIn Focused on automating, optimizing, and scaling LinkedIn's Social Graph database.- Automated LinkedIn's internal Social Graph stack to deploy, organize into clusters,and procure its cache autonomously- Co-authored a patent for software that eliminates garbage collection latency fordistributed systems- Designed and coded Graph-Checker, software which measures and graphs dataquality in a time series for the Social Graph- Helped design a “dark traffic” system for LinkedIn's Social Graph which allows forthe safe testing of new code using duplicated live traffic From May 2013 to October 2016 (3 years 6 months) Mountain View CaliforniaSite Reliability Engineer @ Qualtrics Worked as part of a Site Reliability Engineer team to keep the website and core services highly available. Specialized in deployment automation and alerting.- Designed, built out, and maintained three datacenter co-locations to replace the existing AWS EC2 infrastructure- Heavily automated server deployment and maintenance through Puppet and Python.- Monitored services via Nagios, Graphite, and Ganglia.- Wrote Nagios checks for 3rd party software, in-house software, and hardware.- Worked with the development team to make both the software and hardware scale well.- Participated in a 24/7 on-call rotation. From August 2012 to March 2013 (8 months) Orem UtahStaff Platform Engineer @ Ripple - Wrote an Auth0 plugin for Hashicorp's Vault software to increase authentication security by implementing time-limited credentials which eliminated pre-shared secrets for Auth0- Updated all internal tooling to eliminate pre-shared secrets- Created tool packaging pipelines for Brew/Debian/Alpine which improved distribution of tooling on servers, containers, and laptops- Designed and taught several workshops to train new team members in different tooling and automation libraries- Created reusable testing patterns and pipelines for libraries and tooling which are now used throughout the department Platform Engineer @ Ripple - Created software for standardizing and managing database schema migrations which eliminated inconsistent and error prone hand-editing of databases- Organized and rolled out dynamic time limited credentials for databases which increased security and reliability by eliminating all pre-shared database credentials - Created system for testing Salt development branches which allows coders to quickly iterate when writing and testing Salt code- Wrote Go libraries for internal tooling that improved authentication and interactions with auth0, postgresql, ldap, and Vault From July 2018 to February 2020 (1 year 8 months) San Francisco Bay Area
Head Student System Administrator
July 2010 to September 2012
BYU Housing Services
July 2009 to December 2009
Customer Service Representative
January 2006 to July 2006
Senior Site Reliability Engineer
October 2016 to July 2018
Mountain View California
Site Reliability Engineer
May 2013 to October 2016
Mountain View California
Site Reliability Engineer
August 2012 to March 2013
Staff Platform Engineer
July 2018 to February 2020
San Francisco Bay Area
Head Student System Administrator for the BYU IT Major's network. Responsible for maintaining the network and the labs. Head Student System Administrator for the BYU IT Major's network. Responsible for maintaining the network and the labs.
What company does Steven Callister work for?
Steven Callister works for BYU
What is Steven Callister's role at BYU?
Steven Callister is Head Student System Administrator
What industry does Steven Callister work in?
Steven Callister works in the Information Technology and Services industry.
Enjoy unlimited access and discover candidates outside of LinkedIn
One billion email addresses and counting
Everything you need to engage with more prospects.
ContactOut is used by
76% of Fortune 500 companies