๐Ÿ Walter Wilfinger

๐Ÿ Walter Wilfinger

Developer

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  • Timeline

  • About me

    Senior DevOps Engineer at Tempus Labs, Inc.

  • Education

    • University of Illinois Urbana-Champaign

      2001 - 2005
      BS in Computer Science
  • Experience

    • Expedite Media Group

      Jun 2006 - Oct 2007
      Developer
    • Trading Technologies

      Oct 2007 - Oct 2017
      Engineer

      Since 2015:Member of the six engineer back-end deployment team. We use Chef to manage approximately 1,000 internal development/testing nodes and 1,200 external customer accessible production nodes. Our scripting and tooling around Chef is written in Python. 60k lines of Chef code supports about 25 products across 13 product teams.2014:Led design and writing of a C# WPF and WCF installation framework which was intended to replace all of the company's existing Windows Installer based installation packages. In previous framework, any adding/removing/name-change of a file required a work ticket to be raised to a separate team which would modify the corresponding code and take a business day to complete. This new framework allowed engineers to self-serve file changes themselves with minimal time invested. Making file changes not require a code change allowed the same binary to support the previous five major releases of company's primary client application.2007-2013:Member of a five engineer installation package team. Work was primarily with Windows Installer packages authored with InstallShield. Scripting was done with a combination of VBScript, C++, C#, and Python. We managed thirty installations, all Windows deployed, across all front-end and back-end applications. Applications were installed both internally in our managed environment and released to external customers. Show less

    • Uptake

      Oct 2017 - Oct 2018
      DevOps Engineer
    • Instructure

      Oct 2018 - Jun 2019
      Site Reliability Engineer

      Embedded SRE in three application teams. Migrated dashboards and alerting from Grafana to Datadog. Reworked false-positive, noisy alerts which were distracting application teams with multiple unnecessary pages per week.

    • Tempus AI

      Jun 2019 - now
      Senior DevOps Engineer
  • Licenses & Certifications

    • Amazon Web Services SysOps Administrator - Associate

      Amazon Web Services (AWS)
      Sept 2019