Marc Siegfriedt
Head Of Development at MahcSoft Incorporated
Oxnard, California, United States
Summary
👤
Senior🎓
Top SchoolMarc Siegfriedt is a pragmatic engineering leader with 11 years of hands-on software and infrastructure experience, currently serving as Head of Development in Oxnard, California. He designs and builds scalable, multitenant platforms for on-demand virtual labs and demos, blending software architecture with practical DevOps to deliver repeatable, pristine environments. His background ranges from enterprise automation (Puppet/Foreman, VMware vSphere/vCloud) to web portals built with Ruby on Rails and Node.js, and he has improved tooling at the VM level through open-source contributions to hashicorp/packer. Marc’s work shows a consistent focus on reproducibility and automation—tracking lab builds with Git and exposing complex infrastructure through simple browser UIs. Early experience across public sector and e-commerce systems gives him a strong operational mindset for reliability, disaster recovery, and reporting.
11 years of coding experience
15 years of employment as a software developer
Associate of Science in Electronic Engineering Technology, Associate of Science in Electronic Engineering Technology at ITT Technical Institute-Oxnard
Github Skills (9)
configuration-management10
go10
vmware10
automation9
automations9
infrastructure9
testing8
devops8
json7
Programming languages (4)
Github contributions (5)
hashicorp/packer
Jun 2015 - Aug 2016
Packer is a tool for creating identical machine images for multiple platforms from a single source configuration.
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:10 commits, 4 PRs, 7 comments in 1 year 2 months
Contributions summary:Marc primarily focused on improving the Packer tool's VMware integration. Their contributions involved modifying VMX template handling, fixing case sensitivity issues in VMX configurations, and updating logic related to clean up. They also implemented chef-client configuration and included the fixes. The user demonstrated skills in Go and experience with VMware infrastructure configuration.
vagrantplatformslinuxpackerdocker
mahcsig/packer
Jun 2015 - Aug 2020
Packer is a tool for creating identical machine images for multiple platforms from a single source configuration.
Contributions:6 PRs, 18 pushes, 9 branches in 5 years 2 months
centerplatformslinuxpackerdocker
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