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Work Background
Care2"Director" of IT/Ops
May. 2019 - Apr. 2024Redwood Shores, CADepartment of One, running all the Desktop Information Technology, and maintaining all the internet infrastructure (bare metal) in two physical colo racks (East/West Coast USA). Established an open source on-perm "cloud" solution - using Xen XCP-NG, XOA (xen-orchestra) CentOS/Rocky Enterprise Linux and FreeBSD, Juniper JunOS routing and networking. Ground up rework of production services, which cut OpEx in half, and increased our availability and flexibility, as well as establishing a path to BCP/DR capacity. Proposed, deployed Okta SSO/SAML to multiple SaaS applications. Establishing a Elastic Search cluster (on-perm). Moved employee laptop to a leasing agreement.
iXsystemsDirector Of Information Technology
Jun. 2017 - Oct. 2018San Jose, California- Established a purchasing relationship to get the best pricing on Juniper Network gear.
- Learned JunOS from starch, and the defacto corporate network administrator ( Basic proficiency in JunOS/Juniper EX & SRX switching and routing and IPSec configuration, as well as bird/if_ipsec on FreeBSD. - Complete core networking upgrades and new office deployment.
- Cloud Virtualization consolidation. From Proxmox and VMware to FreeBSD+ bhyve.
- Re-implemented production burn-in and automatic inventorying system
- Recruited team to overhaul the ERP system(s).
- Negotiated with CoreSite, Cogent and AT&T to contracts for office and colocation services
- Established a Cross-departmental Shared Performance Lab Group to consolidate efforts and resources.
- Established Core Infrastructure packaging and deployment systems for FreeBSD. (Foot print and team is too small for large scale config management and deployment systems.) - Migrated multiple MySQL Databases into a MariaDB + Galera Cluster (Galera is a Multimaster Cluster based on synchronous replication).
- Migrated entire company from Zimbra to Google G-Suite
- Contributed small patches and features to multiple open source projects via Github - ( opennetadmin/ona, churchers/vm-bhyve, phpipam/phpipam, manuelkasper/mod_auth_pubtkt )
SelfSelf-Employed Entrepreneur/Consultant
Jan. 2015 - May. 2017Redwood City, CA- freelance consulting and contracting
- Internet of Things (IoT), Home Automation (https://github.com/daviddpd/dpdChatFabric)
- embedded systems Espressif ESP8266 (C99/C/C++)
- ugly iOS/Objective-C application (chatFabric Controller on iTunes Store).
NetflixContent Delivery Operations Engineer
Nov. 2012 - Nov. 2014Los Gatos, CA- general day-to-day operations of a large scale CDN - automation of daily capacity reporting - SPAT: Syslog Parsing and Automation Tool
TwitterSite Reliability Engineering: Infrastructure Automation
Jul. 2012 - Nov. 2012San Francisco Bay AreaTwitter never really found any actual work for me to do, and reorg'ed within two months of joining. I learned about some of their technology. Create some user account in LDAP for new hires.
BitGravityLead System Admin
Sep. 2009 - Jul. 2012Lead System Admin ( Sr. Operational Engineer, DevOps ) for a Global Content Delivery Network - Promoted to Lead System Admin - Feb, 2012 - Managing FreeBSD Kernel Contractor's projects - Validated Kernels and drivers hardware - Optimization and Tuning of FreeBSD OS over the CDN - Install Automation - R&D of new technologies - Xen HVM for development consolidation - MySQL Database Admin - Storage and Performance Testing, Research and Optimization (NAS, Object Store) - Load Balancing (Foundry, A10) Technologies for Web and Database - Creating Server Hardware Specifications and Capital Expenditure (CapEx) Purchasing - Managed Hardware Vendor Relationships
Yahoo!Technical Yahoo! (SE, FE, and Kernel Hacker)
Aug. 2005 - Sep. 2009Sunnyvale, CAInfrastructure Engineering - Sunnyvale, CA - June 2008 - Sept 2009
Technical Yahoo: FreeBSD Kernel Team Member - In Team Support for Senior Kernel Developers - Tested Kernels and drivers on new hardware - Help Create new PXE Networking Installers - Facilitated signing of NDAs with major chip-set vendors for creating drivers for FreeBSD Platform/Y!OS Engineering - Sunnyvale, CA - Oct 2007 - June 2008
Technical Yahoo: FrontEnd Engineer - Creating Web 2.0 Widgets for Common Community Platforms - Frontend Engineer for next gernation ("Y!OS")community platforms - Legacy Data Migration and Download Applications Yahoo! Ad Systems Operations - Sunnyvale, CA - Aug 2005 - Sept 2007
Technical Yahoo: Sales Operations - Provided production operational support for Yahoo! Internal Ad Sales Systems - Provided 24x7 production support (rotating basis) - Implementing monitoring using proprietary internal Yahoo! tools, integrate with Nagios - ensured Sarbanes-Oxley (SOX) compliance and proper Change Management process for controlled products - Basic Release Engineering and support for developers - Developed Internal tools on (L)AMP platform to aid in operational tasks - Inherited and became main support and developer (hacker) contact for the customer, internal SOX compliant build system - Teams resident UNIX (FreeBSD & Linux) guru and resource - Teams go-to IT/SA contact
SBC Communications, Inc.Senior Communications Specialist
Mar. 2002 - Aug. 2005SBC Advanced Solutions, Inc. - Dublin, CA - Nov 2004 - Aug 2005
Senior Communications Specialist - Primary Responsibility: Solaris System Administrator, support, installation, maintenance - Implementing Sun One Directory Service as a Solaris Naming Service - Working with NFS, NIS+, LDAP, perl, php, SSH, nsswitch, PAM, DNS/Bind, Cisco Switches, Sun/Solaris Jumpstart SBC Services, Inc. St. Louis, MO - March 2002 - Oct 2004
Resource Technician - Tier 1 Monitoring Center (ROCC) for Midrange Unix and NT Systems - Work with System, Application, and Database Administrators to resolve problems - Skills used: Unix (AIX, HP, Sun), Communication skills (writen and phone) - Created Perl Scripts to automate creation of BMC Patrol Desktop Files - Created CRM-DR-Backup Script to save critical information to local PCs from ITO's CRM database for the Disaster Recovery - Proposing to design and create a Web Application (PHP, HTML, CSS, MySQL) for Content Management - Received an Team Awards for 2002, 2003 - Received an Individual Development Award 2003 for CRM-DR-Backup
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