Sean Freitag
Staff Software Engineer at Gneox Solutions, LLC.
Minnesota, United States
Summary
👤
Senior🎓
Top SchoolSean Freitag is a Staff Software Engineer with 14 years of experience building and leading cross-functional teams to deliver secure, scalable cloud-native systems from Minnesota. He has deep hands-on expertise across identity and access management, Kubernetes-based platforms, and IoT/big-data architectures—frequently modernizing legacy authorities into microservices using Python, FastAPI, Vault, and AWS. Sean pairs technical craft with operational rigor, having led teams to adopt DevOps practices, robust monitoring (Datadog/PagerDuty), and evolutionary migrations that avoid risky big-bangs. He contributes to open-source tooling for test automation and HTTP mocking (notably refactoring Betamax internals from Groovy to Java), showing a practical focus on improving developer experience and testability. Colleagues know him as a pragmatic coach who balances security, business alignment, and incremental delivery to accelerate time-to-market.
14 years of coding experience
15 years of employment as a software developer
BS, Computer Engineering, BS, Computer Engineering at Iowa State University
Stackoverflow
481reputation
11kreached
2answers
3questions
Github Skills (13)
javas10
groovy10
java10
testing9
yaml8
http7
xcode6
ios6
cocoa-touch6
sqlite6
sql6
uicollectionview6
xctest6
Programming languages (11)
Github contributions (5)
betamaxteam/betamax
Aug 2013 - May 2017
Betamax is a tool for mocking external HTTP resources such as web services and REST APIs in your tests. The project was inspired by the VCR library for Ruby.
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:3 releases, 227 commits, 42 PRs in 3 years 10 months
Contributions summary:Sean primarily focused on refactoring and converting Groovy files to Java within the Betamax project. This involved converting core components such as the `GroovyRepresenter`, `YamlTapeLoader`, and several HTTP message adapters to Java. Furthermore, the user addressed the removal of deprecated elements and adjustments to improve code efficiency and compatibility within the project. In addition to general refactoring tasks, they also updated test configurations to use new configurations.
vcrtestingrubyweb-servicesapi-testing
alliefitter/boto3_type_annotations
Jul 2019 - Apr 2023
Deprecated. A maintained fork is available at https://github.com/vemel/mypy_boto3
Contributions:2 PRs, 5 comments in 3 years 10 months
mypypythonannotationspycharmcode-completion
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