Joseph Ziegler

Experience

Where I've worked

1. March 2025 – Present

   ServiceNow

   Senior Systems Engineer

   • Develop and maintain infrastructure automation for 100,000+ Linux servers using Puppet, Python, and industry best practices.
   • Lead the refactoring of core Puppet modules to ensure full compatibility and support for RHEL 9 across enterprise environments.
   • Create and maintain custom facts, functions, and types in Puppet to extend automation capabilities and meet complex business requirements.
2. December 2024 – March 2025

   Sporttrade

   Lead Site Reliability Engineer

   • Led a team of 4–5 engineers responsible for designing, deploying, and maintaining cloud infrastructure.
   • Spearheaded the rollout of mission-critical applications using Terraform, Ansible, and Kubernetes for scalability, reliability, and automation.
   • Architected and implemented infrastructure solutions supporting high-availability services across multiple environments.
   • Collaborated with cross-functional teams to streamline deployment pipelines and improve CI/CD processes.
   • Provided technical mentorship, fostering a collaborative and high-performing engineering culture.
3. February 2021 – November 2024

   Uber Technologies, Inc

   Senior Applications Developer, Site Reliability Engineering

   • Migrated core SRE-managed applications and services to a containerized environment ahead of a large cloud-native initiative.
   • Converted standalone and containerized services to Kubernetes (EKS/GKE), reducing infrastructure costs by 25%.
   • Implemented a centralized storage solution for Prometheus hosted in Kubernetes (Thanos).
   • Migrated services to Terraform (IaC), cutting server/managed-service deployment times from hours to seconds.
   • Owned Bluecat DNS services within Uber's corporate infrastructure.
   • Migrated Uber's entire corporate DNS infrastructure from VMware to Google Cloud.
   • Designed and implemented critical service migrations from AWS to Google Cloud with little to no downtime.
   • Re-designed CI/CD pipelines using GitHub workflows for reliable testing, analysis, and deployment.
   • Wrote Python and Bash scripts to automate team tooling.
   • Performed all duties of the Systems Engineer I and II role.
4. August 2017 – February 2021

   Uber Technologies, Inc

   Systems Engineer II, Site Reliability Engineering

   • Promoted to Senior Applications Developer.
   • Owned Corp Linux server authentication.
   • Owned Puppet / configuration management across Uber's Corp infrastructure.
   • Owned Uber's Corp Puppet Enterprise configuration management solution, fine-tuning and scaling a Puppet master and multiple compile masters.
   • Architected and implemented distributed enterprise applications serving 4,000+ engineers.
   • Member of the Change Advisory Board (CAB) representing the SRE team.
   • Deployed high-impact, highly-available services with multi-region active-active clusters for the lowest possible latency.
   • Researched and implemented new services, eliminating time-consuming Puppet code modifications.
   • Mentored employees on other teams for career growth and better understanding of managed corporate services.
   • Rewrote Puppet classes to scale with server environment growth and eliminate manual configuration.
   • Performed all duties of Systems Engineer I.
5. July 2016 – August 2017

   Uber Technologies, Inc

   Systems Engineer I, Site Reliability Engineering

   Infrastructure Engineer I on the Tech Services, Corp Site Reliability Engineering Team, ensuring a durable approach to engineering for all corporate systems through proactive design, automation, and metrics.

   • Promoted to Systems Engineer II.
   • Solved problems relating to mission-critical services and built automation to prevent recurrence.
   • Configured and deployed applications in OneLogin.
   • Deployed new applications built by software engineers into the corporate environment via Puppet Enterprise.
   • Configured HAProxy servers for load balancing and high availability for web nodes.
   • Improved Puppet code for future infrastructure growth and rewrote it as necessary.
   • Wrote custom Sensu checks and metrics for monitoring and alerting.
   • Administered Puppet Enterprise, RabbitMQ, Sensu, the ELK stack, Grafana/Graphite, Redis, Kafka, Stash/Bitbucket, Bamboo, OneLogin, Jira, and Confluence.
   • Managed 1,000+ nodes across Uber's global corporate infrastructure (Ubuntu, Debian, CentOS, Windows) using Puppet.
   • Quickly managed systems using Fabric.
   • Led and coordinated the rollout of new services into the Corp infrastructure.
6. June 2015 – July 2016

   Uber Technologies, Inc

   Service Desk Technician II

   Provided onsite, phone, email, and chat support for end-user systems and applications.

   • Promoted to Infrastructure Engineer I on the Corp Site Reliability Engineering Team.
   • Wrote weekly updates for the global service desk team covering key changes and critical information.
   • Set an all-time record with a colleague for most tickets completed in one workday.
   • Started an after-work program to teach the service desk team career-growth technologies.
   • IT onboarding lead for all of Uber's new full-time employees, weekly.
   • Designed projects affecting all service desk teams globally to streamline ticket resolution as the company scaled.
   • Wrote Bash scripts to automate LDAP additions, deletions, and modifications.
   • Built tools with Google App Script to improve process efficiency.
   • Won the Most Valuable Person award for 2015 on the global tier-2 team.
7. August 2013 – June 2015

   Google

   Information Technology Resident

   Supported a sophisticated user base across all major desktop and mobile OSes (Windows, Mac, Linux, ChromeOS, Android, BlackBerry), directly and remotely, including Google's internal tools, plus small-to-medium IT projects impacting all Google campuses globally.

   • Supported all Googlers in a front-line IT support role via helpdesk and ticketing.
   • Took on medium-sized IT projects, 8–10 hours per week, impacting all Google campuses globally.
   • Traveled to Google offices globally to support smaller offices and cover larger ones when short-staffed.
   • Partnered with Network Operations, Windows Service, and Linux Service teams to diagnose and resolve outages.
   • Led a global initiative impacting all Google offices relating to conference rooms.
8. January 2011 – July 2013

   New Earth Company

   IT Technician

   Managed the entire IT infrastructure, including servers, workstations, networking, and PBX, across Windows (XP, Vista, 7, Server 2003/2008), Mac OS X Lion, and Linux (Ubuntu Desktop/Server, Mint, Fedora).

   • Provided on-site and remote IT support for 50+ employees at 4 locations.
   • Provided emergency on-call support as needed.
   • Managed and maintained all workstations, networking equipment, and servers.
   • Assisted in planning, designing, documenting, and implementing systems and software company-wide.
   • Designed and maintained a Linux-based backup system for all server-related systems, company-wide.

Extra Curricular

Outside of work