🐐 Walter Wilfinger

Experience

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  Expedite Media Group

  Jun 2006 - Oct 2007

  Developer
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  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

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  Uptake

  Oct 2017 - Oct 2018

  DevOps Engineer
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  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.

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  Tempus AI

  Jun 2019 - now

  Senior DevOps Engineer