Daniel Castellanos
Engineering Manager at Qualtrics
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolDaniel Castellanos is an Engineering Manager in Seattle with over a decade of hands-on software engineering experience and 15 years of industry involvement, known for leading data and platform teams to build scalable, user-friendly solutions. He has driven data engineering and cloud-native ML platforms at Qualtrics and Intel, translating complex big-data and Kubernetes-based requirements into reliable self-service tools and production services. Equally comfortable across front-end and back-end stacks, he has shipped UI improvements and robust test coverage for high-profile open-source projects like OpenStack Horizon, blending QA rigor with UX fixes. Daniel combines technical leadership with a maker’s mindset—regularly contributing code, tests, and architecture while coaching teams to improve delivery and quality. He brings a pragmatic focus on observability, security, and performance from building MLaaS and enterprise cloud platforms, and he enjoys turning ambiguous problems into simple, scalable solutions.
10 years of coding experience
10 years of employment as a software developer
Bachelor's Degree, Computer Engineering, Bachelor's Degree, Computer Engineering at Universidad de Guadalajara
English, Spanish
Stackoverflow
51reputation
660reached
0answers
4questions
Github Skills (13)
unit-testing10
openstack10
python10
test-automation10
django9
oop6
curve-fitting6
adc6
math6
equation6
database6
ironpython6
javascript4
Programming languages (6)
Github contributions (5)
openstack/horizon
Mar 2016 - Feb 2017
OpenStack Dashboard (Horizon). Mirror of code maintained at opendev.org.
Role in this project:
Backend & QA Engineer
Backend & QA EngineerContributions:28 commits in 11 months
Contributions summary:Daniel's commits primarily focused on improving test coverage and quality assurance for the OpenStack Horizon dashboard, specifically targeting the "Flavors" functionality. They added new unit tests within `nova_tests.py` to cover areas previously untested, creating tests for flavor listing, getting, creation, and deletion. Additionally, the user addressed UI/UX issues, correcting a label in the image creation form and resolving container detail style issues. This demonstrates a blend of backend testing and frontend bug fixes.
horizonopendevopenstackdashboardenterprise
intel/open-network-insight
Nov 2015 - Feb 2016
Contributions:15 commits, 11 PRs, 7 pushes in 2 months
scalableanalyticsbinary-datainteractive-visualizationpackets
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