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I wrangle computers
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Technical AdvisorThreaded Oct 2023 - Present -
Software EngineerMarqeta, Inc Mar 2020 - Oct 2021Oakland, California, UsMostly skunk works using Java, Python and Go -
Platform EngineerSquare Oct 2012 - Dec 2018San Francisco, Ca, UsRuby CodeJava CodeGo CodeDocumentation for CodeArchitecture for Code -
Senior Staff Site Reliability EngineerLinkedin Jul 2010 - Oct 2012Sunnyvale, Ca, Us* Wrote libraries, frameworks, and automation in python* Designed multiple components of internal infrastructure* Provided technical leadership across the SRE organization* Wrote documentation* Supported software written by the SRE infrastructure team -
Serving ArchitectYahoo! Dec 2009 - Jun 2010Sunnyvale, Ca, Us* Technical leader and point of contact across multiple service engineering groups.* Take part in formal reviews of tools and products, new and existing.* Write technical policy, documentation and run training sessions* Plan, architect and develop tools for the production environment* Interface with developers to help produce operable systems that perform at a large scale.* Work with Service Engineers to maintain the technical direction and philosophy inside of our Product Group -
Manager, Service EngineeringYahoo! Feb 2009 - Dec 2009Sunnyvale, Ca, Us* Day to day management of a team of 6 production engineers.* Environment consisted of thousands of servers covering dozens of products* Responsible for process and policy implementation for all parts of the Sponsored Search environment.* Interfaced with multiple developer groups as well as QA to roll out. projects with ongoing revenue impact.* Retained role as senior technical resources in the group for 6 months.* Escalation point for all revenue impacting production issues.* Responsible for negative revenue impact post-mortem and remediation.* Interface with Bangalore counterpart for policy and project management. -
Senior Service EngineerYahoo! Sep 2007 - Feb 2009Sunnyvale, Ca, Us* Responsible for full life cycle of software including: - Architecture review with dev at prototyping phase. - Monitoring, graphing and tool building using internal mechanisms for new and existing products. - Launch and launch management for multiple products. - Ongoing support of dozens of software pieces. - Hardware build-outs and configuration management configuration.* Built tools with Perl and wrote internal libraries for use by others.* Wrote multiple monitors.* Wrote multiple automation methods to ease day to day activities.* Became defacto technical lead of the group within the first year.* On-call 12x7 pager rotation with aggressive SLA response.* Interface with Bangalore counterparts for knowledge transfer.* Retirement and migration from legacy systems to standard tool sets.* Support of thousands of Redhat Linux systems.* Some support of FreeBSD systems until EOL.* Support of internal tools for multiple aspects of administration, mostly in Perl. -
Lead System AdministratorResponsys Feb 2006 - Sep 2007Us* Part of a two man team that redesigned and built a data center installation from scratch. This included setting up Kickstart, DHCP, DNS, Configuration Management, LDAP, Mon, Zabbix, YAM/mRepo and many admin tools from scratch.* Set up numerous corporate tools including RT, MediaWiki and Hybrid IRC* Wrote, in Ruby, a configuration management tool based on Pull ideals with a cascading hierarchy and simple file-based repository.* Configured from scratch multiple EMC Clariion units. Continued planning and administration of said units.* Configuration and maintenance of an EMC Celerra unit.* Configuration and maintenance of McData and Brocade SAN switches.* Configuration and management of multiple VCS nodes for hot-standby Oracle servers.* Ongoing Rack-and-Stack of Sun and Penguin Computing servers. This includes Kickstarting or Jumpstarting of the servers.* Ongoing leadership of new System Administrators while reporting to the Director of System Operations.* Writing maintenance plans and leading maintenance activities.* Writing policy and providing input on the policy written by others* Writing documentation templates* Writing design documents for system tools* Writing service documentation* Testing and Evaluation of Virtualization products including Xen and VMWare -
Systems ManagerOpentv Aug 2005 - Feb 2006* Manager of the systems team composed of two System Engineers and worldwide technical contact and architect for 11 offices.* Developed a migration and consolidation plan to move 30+ windows servers running on legacy hardware to 8 servers utilizing server virtualization* Rolled out remote KVM and console access to the main American offices and started coordination with European and Asian offices to do the same* Rearchitected the existing SAN to utilize modern switches and backup delivery mechanisms* Wrote policy for acceptable use of a variety of services* Implemented WSUS to ease bandwidth requirements of windows updates* Oversaw the migration from an NT Domain infrastructure to Active Directory and Exchange 2003* Migrated the internal DNS servers from BIND8 to BIND9* Oversaw the migration of core file servers to new hardware capable of meeting the rising demand* Architected a NAS solution to replace the aging SAN and developed a no-cost reuse policy of that SAN.* Migrated the externally facing web server from Saavis to Data Return
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Technical ConsultantTaos Apr 2005 - Aug 2005Boise, Idaho, Us4 month contract with Google writing tools for the Sysops group in perl, python and ruby. -
Senior System EngineerOpentv Sep 2001 - Apr 2005Supported Solaris systems in a data center environment and geographically dispersed. The data center provided data warehousing and backend application processing. The dispersed systems provided the front-end application processing in cable head-ends in a semi-redundant fashion.
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Solaris System AdministratorMetatv Nov 2000 - Sep 2001UsBuilt, Ran, and Supported a 15 system solaris development environment. Built, Ran, and Supported numerous Redhat Linux systems for supporting roles such as FTP and Dial-in access for cable set top boxes. -
Production Support EngineerPilot Apr 1999 - Nov 2000Supported numerous internet services and was part of a support team that cared for hundreds of Solaris systems. Services included iPlanet, fwtk, ftp, and other cutting edge internet technology from 1999.
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Technical Support RepresentativeNetwalk Dec 1996 - Apr 1999End-user support for a local dial-up ISP.
Grier Johnson Skills
Frequently Asked Questions about Grier Johnson
What company does Grier Johnson work for?
Grier Johnson works for Threaded
What is Grier Johnson's role at the current company?
Grier Johnson's current role is Technical Advisor.
What is Grier Johnson's email address?
Grier Johnson's email address is gr****@****eup.com
What is Grier Johnson's direct phone number?
Grier Johnson's direct phone number is +1.650.687*****
What skills is Grier Johnson known for?
Grier Johnson has skills like Perl, Scalability, Solaris, Linux, Python, System Monitoring, System Administration, System Architecture, Ruby, Automation, Hating Things, Virtualization.
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