Arx Cruz
Associate Manager
Germany
Summary
🤩
Rockstar🎓
Top SchoolArx Cruz is an experienced OpenStack engineer and manager with 15 years building and operating cloud and performance tooling, currently serving as Associate Manager at Red Hat in Germany. He has deep hands-on expertise in OpenStack projects like Tempest and Rally, contributing test automation, Python compatibility fixes, and benchmarking-focused improvements for large-scale HA deployments. His background includes performance tuning and automation at IBM—publishing SPEC benchmarks and optimizing Linux on IBM Power—giving him a rare blend of infrastructure, testing, and performance engineering skills. Known for pragmatic fixes (e.g., synchronization tweaks and header removals) that improve reliability, he moves comfortably between coding, QA, and technical leadership.
15 years of coding experience
12 years of employment as a software developer
Bachelor of Science (BSc), Bachelor of Science (BSc) at Faculdade de Tecnologia e CiênciasEscola Nobre
English, Portuguese
Stackoverflow
115reputation
53kreached
4answers
0questions
Github Skills (16)
rally10
pest10
openstack10
temper10
tempo10
python10
test-automation10
net9
unit-testing8
jenkins6
paramiko6
file-descriptor6
gtk6
sudo6
ssh6
Programming languages (11)
Github contributions (5)
openstack/tempest
May 2015 - Sep 2022
OpenStack Testing (Tempest) of an existing cloud. Mirror of code maintained at opendev.org.
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:6 commits in 7 years 4 months
Contributions summary:Arx primarily contributed to the OpenStack Tempest testing framework. Their commits focus on adding new tests to verify functionality, such as filtering ports by IP address. They also addressed issues related to test synchronization in HA deployments by introducing sleep timers to allow for object deletion synchronization. Furthermore, the user worked on removing unnecessary headers to resolve potential conflicts with underlying libraries.
openstacktesting
openstack/rally
Dec 2014 - Jan 2015
Rally provides a framework for performance analysis and benchmarking of individual OpenStack components as well as full production OpenStack cloud deployments. Mirror of code maintained at opendev.org.
Role in this project:Back-end Developer
Back-end DeveloperContributions:11 commits in 1 month
Contributions summary:Arx contributed to the OpenStack Rally project, primarily focusing on Python code improvements. Their work includes refactoring and bug fixes, specifically addressing Python 3 compatibility issues related to the `iteritems` method and fixing operand usage in `dict_items`. The user also made changes to the `cliutils` and `osclients` modules, likely to improve error handling and functionality. They demonstrated a good understanding of the Rally framework and OpenStack client libraries.
benchmarkingopenstack
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