Mark Chappell
Senior Principal System Engineer at Red Hat
Greater Munich Metropolitan Area Germany
Summary
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Rockstar🎓
Top SchoolMark Chappell is a Senior Principal System Engineer with 16 years of experience architecting hybrid cloud infrastructure at Red Hat, specializing in OpenShift, OpenStack, RHV and multi-cloud deployments. He blends hands-on systems administration with DevOps engineering—driving automation across Puppet, Ansible, Heat and CloudFormation while leading platform design for both on-prem and public clouds. An active open-source contributor, Mark has improved reliability and test coverage in major projects like Ansible and openstacksdk, including fixes for AWS modules and federation features for OpenStack. He is comfortable refactoring low-level cloud integrations (boto3-to-client migrations, retries, check-mode support) to make automation safer and more maintainable. Based in the Greater Munich area, he pairs deep operational experience with a pragmatic engineering mindset and the occasional sleepless-parent humor that keeps him grounded.
16 years of coding experience
16 years of employment as a software developer
BEng Electrical and Electronic Engineering with Telecommunications, BEng Electrical and Electronic Engineering with Telecommunications at University of Bath
English, German
Stackoverflow
1reputation
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Github Skills (21)
boto10
python10
apidoc10
identity-management10
aws-sdk10
amazon-ec210
openstack10
api10
aws10
ansible10
block-storage10
ansible-galaxy10
devops10
integration-testing9
automations8
Programming languages (9)
Github contributions (5)
ansible-collections/community.aws
May 2020 - Jan 2023
Ansible Collection for Community AWS
Role in this project:
Backend & DevOps Engineer
Backend & DevOps EngineerContributions:2 releases, 1056 reviews, 456 commits in 2 years 8 months
Contributions summary:Mark contributed to the `community.aws` Ansible Collection, community.aws is used to help with AWS related automation. The contributions focus on improving the `elb_target_group` module, addressing stickiness issues, and refactoring various modules to use more modern techniques, including replacing direct boto3 API calls with client functions and adding retry mechanisms, resulting in increased reliability. Further contributions included adding support for check mode, and documenting and adding tests to the various modules. The user also improved the general stability and maintainability of the codebase through code cleanup and best-practice application.
ansibleawsansible-collection
ansible/ansible
Nov 2016 - Nov 2022
Ansible is a radically simple IT automation platform that makes your applications and systems easier to deploy and maintain. Automate everything from code deployment to network configuration to cloud management, in a language that approaches plain English, using SSH, with no agents to install on remote systems. https://docs.ansible.com.
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:15 reviews, 107 commits, 129 PRs in 6 years 1 month
Contributions summary:Mark contributed to the core functionality of the Ansible project by adding features to modules. Their work involved enabling encryption at rest for Amazon EC2 Launch Configurations, improving the usability of the ovirt_vms cloud_init parameter by adding documentation, and modifying the aws_kms module and iam_password_policy. They also fixed integration test issues within the aws_kms and aws_codecommit modules. Finally, they performed DevOps tasks such as fixing and updating integration tests for the RDS inventory configuration and adding support for tagging for autoscaling groups.
ansibleautomationnetwork-configurationsshpython
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