Ken Osthimer
Bothell,WA
Summary
Dynamic Principal Infrastructure Engineer with a proven track record at Expedia, Inc., excelling in configuration management and Active Directory integration. Spearheaded initiatives that enhanced infrastructure efficiency, achieving a 98% reduction in desktop management overhead. Adept at automation and fostering collaboration across teams to drive impactful solutions.
Overview
39
39
years of professional experience
1
1
Certification
Work History
Principal Infrastructure Engineer
Expedia Group
10.2024 - 01.2026
- Partnered with PCI team to assess and remediate items for EG PCI compliance.
- Collaborated with security team to build and support operating system hardening based on CIS OS hardening recommendations.
- Coordinated with SOX team for quarterly evidence collection to ensure compliance.
- Work with Procurement on OS Licensing. This includes Microsoft, Red Hat and Ubuntu for annual true-up and extended support.
Sr Systems Engineer
Expedia Group
09.2008 - 10.2024
- Architected and Built Expedia’s Operating System Imaging System utilizing Microsoft Deployment Toolkit (MDT), SCCM and Foreman.
- Designed and implemented security initiatives, establishing central security policies through Active Directory Group Policy.
- Architected and supported Active Directory infrastructure for Expedia, managing 10+ domains across on-prem data centers and AWS cloud.
- Built and Supported Configuration Management of operating systems using SCCM and Chef.
- Developed operating system patching solutions using Microsoft WSUS for Windows and on-prem Yum and Apt repositories for Linux.
- Built and support for core services DNS, DHCP and IP Management using Infoblox.
- Provided support for Windows and Linux operating systems, including RHEL and Ubuntu.
- Supported VMWare Virtual Environment.
IT Specialist
SAFECO Insurance
06.2007 - 09.2008
- Responsible for the support and design of Enterprise Messaging Servers.
- 30+ Exchange 2003 Servers in 2 data centers and field locations.
- MailMarshal servers.
- RightFax servers.
- SharePoint servers.
- Responsible for laptop encryption using Credant Windows Shield. This includes 4 Credant servers supporting 3000+ laptops.
Senior IT Analyst
SAFECO Insurance
09.2000 - 06.2007
- Played a key role in an Enterprise Management Tools group that was tasked with maintaining all enterprise tools to allow proper utilization and resource use by the entire corporation.
- Acted as business owner responsible for implementing new tools, integrating existing tools to increase functionality, and continuing maintenance of existing tools.
- Worked as a key player in several corporate wide initiatives that were critical to the continued success and growth of Safeco.
- Key in implementation of a Managed Client initiative to centralize desktop management resources.
- Created and documented workflow for Managed Client requests.
- Worked with several stakeholders to build requirements and framework.
- Responsibilities divided 50/50 between project related roles and application support.
- Provide support for 20+ SMS 2003 Servers in 2 Data Centers and 12 field locations.
- Maintain all aspects of multiple applications (backend, mid-tier, front end).
- Implemented ITIL processes utilizing Remedy Action Request System.
- Responsible for User Account Provisioning Utilizing Microsoft MetaDirectory Services and VB.NET.
- Played a Key role in implementing several security initiatives including: Implementing central security policies utilizing Active Directory Group Policy.
- Implementing central control and monitoring for internet activity utilizing Microsoft ISA Server and Websense Software.
- Provide leadership for developing PERL and VBScript for automating system management functions.
- Provide Support for a 50+ Citrix Terminal Server Farm.
- Documented processes and workflows of several applications for use by technical and non-technical users.
- Responsible for 24x7 support of various applications.
- Responsible for managing various projects that cut desktop management by up to 98%.
Senior Technical Analyst
SAFECO Insurance
01.1987 - 09.2000
- Responsible for an 11 server network that supports the financial operations departments.
- Worked with business partners to provide technical solutions to business problems.
- Responsible for design and support of 500+ workstations.
- Consulted with business departments on corporate policies and procedures.
- Deployed and maintained the following: Novell Servers providing File and Print facilities.
- Windows NT servers providing 3rd Party applications.
- Implemented SQL Server.
- Printing services for entire corporation.
- Implemented Veritas Backup for Windows NT and Novell Servers.
- Asset Management of workstations, including purchasing and auditing.
- Oracle Database Application to support our Corporate Benefits Systems.
- Application to reconcile all SAFECO bank accounts.
- Asset Management System to the Investment Departments Stock and Bond Portfolios for the entire Corporation.
Education
A.A. equivalent Diploma - Computer Accounting Specialist
Cascade Business College
Bellingham, WAMicrosoft Certified Systems Engineer (NT4.0/2000) - Upgrading Support Skills From MS Windows NT 4.0 to Windows 2000, Administering Windows 2000 Active Directory, Networking Essentials, Implementing and Supporting NT Server 4.0, Implementing and Supporting NT Server 4.0 in the Enterprise, Implementing and Supporting NT 4.0 Workstation, Internetworking with Microsoft TCP/IP on Microsoft Windows NT 4.0, Implementing and Supporting Microsoft Internet Information Server 4.0, System Administration for SQL Server 7.0
Skills
- Configuration management
- Active Directory integration
- DNS and DHCP management
- Linux system management
- Scripting languages
- Server configuration
- Virtualization technologies
- Linux system administration
- Infrastructure automation
- Scripting and programming
- System administration
- Windows server
- Active Directory support
- Active Directory administration
- IT security best practices
- Windows Server management
- Cloud infrastructure management
- Windows server administration
Certification
- Microsoft Certified Systems Engineer (NT4.0/2000)
- Upgrading Support Skills From MS Windows NT 4.0 to Windows 2000
- Administering Windows 2000 Active Directory
- Networking Essentials
- Implementing and Supporting NT Server 4.0
- Implementing and Supporting NT Server 4.0 in the Enterprise
- Implementing and Supporting NT 4.0 Workstation
- Internetworking with Microsoft TCP/IP on Microsoft Windows NT 4.0
- Implementing and Supporting Microsoft Internet Information Server 4.0
- System Administration for SQL Server 7.0
Accomplishments
• Engineered a solution using Microsoft Deployment Toolkit (MDT) to create core windows server images. Built out task sequences for OS deployment using core image.
• Built an API using C# to import a server into SCCM with correct configurations for zero touch build.
• Worked with network team and business customers to capture requirements to build out a new data center, including server builds, DNS, DHCP, and other services.
• Build automation to build and publish monthly VMWare VM Templates utilizing MDT and Powershell.
• Built an API using C# to import a server into SCCM with correct configurations for zero touch build.
• Worked with network team and business customers to capture requirements to build out a new data center, including server builds, DNS, DHCP, and other services.
• Build automation to build and publish monthly VMWare VM Templates utilizing MDT and Powershell.
Timeline
Principal Infrastructure Engineer
Expedia Group
10.2024 - 01.2026
Sr Systems Engineer
Expedia Group
09.2008 - 10.2024
IT Specialist
SAFECO Insurance
06.2007 - 09.2008
Senior IT Analyst
SAFECO Insurance
09.2000 - 06.2007
Senior Technical Analyst
SAFECO Insurance
01.1987 - 09.2000
A.A. equivalent Diploma - Computer Accounting Specialist
Cascade Business College