Product Engineer
Yosemite Crew · DuneXploration UG
- Sole engineer-owner of an open-source veterinary practice-management system at a three-person company: architecture, web platform, mobile app, integrations, CI and release.documented
- The largest contributor to the project by commits, ahead of every other engineer on it, with 1,394 against 1,058 for the next.
- Owned the React Native app end to end including the release process: builds, store review, and shipping to both the App Store and Google Play.documented
- Designed HL7/FHIR-aligned clinical data models.
- Integrated IDEXX Laboratories diagnostics and Merck Veterinary Manual APIs.
- Built the auth stack on AWS Cognito and Amplify Gen 2 (custom Lambda OTP triggers, WebAuthn passkeys, TOTP MFA, OAuth across Google/Apple/Facebook), then led its migration to SuperTokens.
- Owned cloud infrastructure (Lambda, S3, CloudFront, Redis) and authored the GitHub Actions estate, from CodeQL and Gitleaks to SonarCloud gates and Playwright E2E, across three codebases in a Turborepo/pnpm monorepo.
- Ran customer discovery interviews; hired and onboarded the second engineer, and wrote the specs they built against.





