Frank Kotsianas
Senior Software Engineer at Etsy
Austin, Texas, United States
Summary
👤
Senior🎓
Top SchoolFrank Kotsianas is a Senior Software Engineer and engineering leader in Austin with 12+ years building scalable web and mobile platforms for startups and enterprise teams, currently shipping pricing systems at Etsy used by millions of sellers worldwide. He blends hands-on backend work (Go, Python, Django, Rails) with front-end and native mobile expertise (React, React Native), and strong devops/CI-CD chops (Docker, Kubernetes, Terraform, Concourse). As a former CTO and founding engineer at multiple TechStars and education-focused ventures, he pairs product sensitivity with operational rigor to tighten feedback loops and team cohesion. An active open-source contributor, he’s improved usability and backend stability in projects like GoCD and Cloud Foundry and implemented biometric auth support for React Native on Android. He frequently advises social enterprises and nonprofits, drawing on an Ed.M. in cognitive science and a history of education and research work to translate human-centered problems into robust technical solutions.
12 years of coding experience
10 years of employment as a software developer
B.A. Cognitive Science Education Entrepreneurship and Technology, B.A. Cognitive Science Education Entrepreneurship and Technology at University of California, BerkeleyEd.M. Cognitive Science Statistics, Ed.M. Cognitive Science Statistics at Harvard Graduate School of Education
Greek, Latin, French
Stackoverflow
194reputation
25kreached
7answers
0questions
Github Skills (33)
cloud-foundry10
react-native10
back-end-development10
apidoc10
authentication10
user-authentication10
authenticate10
java10
ruby10
javas10
api10
android10
gocd10
biometrics10
auth10
Programming languages (13)
Github contributions (5)
hieuvp/react-native-fingerprint-scanner
Jan 2020 - Jan 2020
Provide Fingerprint, Touch ID, and Face ID Scanner for React Native (Compatible with both Android and iOS)
Role in this project:
Mobile Developer (Android)
Mobile Developer (Android)Contributions:2 releases, 18 commits, 3 PRs in 10 days
Contributions summary:Frank primarily worked on implementing fingerprint and biometric authentication features for the React Native application. Their contributions include adapting the codebase to utilize the newer Android BiometricPrompt API, refactoring existing fingerprint logic, and adding legacy support for older Android versions. They also focused on error handling and providing consistent user feedback across different authentication methods. The user's work involved significant modifications to the Android native module, error message handling, and the React Native interface.
faceidmeizufingerprintiosface-id
cloudfoundry/cloud_controller_ng
Oct 2015 - Mar 2016
Cloud Foundry Cloud Controller
Role in this project:Back-end Developer
Back-end DeveloperContributions:37 commits, 1 PR, 34 pushes in 4 months
Contributions summary:Frank primarily contributed to the back-end aspects of the Cloud Foundry Cloud Controller project. Their work involved fixing tests, integrating feature flags for Docker applications, and refining the API by addressing code documentation. They also made enhancements to the API, adding the functionality to list route mappings. These changes indicate a focus on improving the stability and functionality of the system, aligning with back-end development tasks.
foundrycontrollercloud-foundrysap-hanaruby
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