Benjamin Krein
Philadelphia, Pennsylvania, United States
Summary
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SeniorBenjamin Krein is a Principal Systems Engineer with 11+ years of deep expertise designing and operating Linux/UNIX server infrastructure and configuration management at scale. He has led infrastructure architecture and DevOps transformations at organizations including IBM, Wildbit, and Vertex, bringing test-driven infrastructure, CI/CD, and automation practices into production. Skilled with Chef/Puppet, virtualization, and scripting (Perl, Python, Bash), he also has hands-on experience with database operations and monitoring across heterogeneous environments. Benjamin contributes practical improvements to open-source tooling—enhancing Test Kitchen's Ansible provisioner to handle symlinks and ignore-path edge cases—demonstrating attention to real-world provisioning pitfalls. Based in Pennsylvania, he combines systems-level craftsmanship with a history of building reproducible, auditable infrastructure and mentoring teams through operational change. An uncommon thread in his career is moving operations toward developer-style workflows, focusing on automated testing and maintainable infrastructure code.
11 years of coding experience
Github Skills (8)
test-kitchen10
configuration-management10
automation10
ansible-galaxy10
automations10
ansible10
ruby9
testing8
Programming languages (14)
Github contributions (5)
neillturner/kitchen-ansible
Jun 2016 - Jun 2016
Ansible Provisioner for Test Kitchen
Role in this project:
DevOps Engineer
DevOps EngineerContributions:6 commits, 3 PRs, 13 comments in 20 days
Contributions summary:Benjamin focused on enhancing the Ansible provisioning process for Test Kitchen. Their contributions include adding support for symlinks, incorporating an ignore paths feature, and refining target paths. They also added a test for the ignore_paths_from_root functionality. These changes improved flexibility and address edge cases related to copying files and directories during the provisioning phase.
ansible
benjamink/fujinet-firmware
Oct 2023 - Jun 2026
8-bit systems to ESP32 WiFi Multifunction Firmware
Contributions:2 releases, 1 PR, 61 pushes in 2 years 8 months
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