Software Engineer @ Net Feasa
Jul 2024 — Present · Dingle, IrelandFull-stack engineer across cross-platform apps and serverless cloud services — UI lead on two production apps, CI/CD built from scratch, and event-driven AWS pipelines.
- Built most of the UI for two production apps in React Native + Expo (TypeScript), shipping one codebase to iOS, Android, Web, and Windows desktop.
- Designed a reusable ~18-component library and theme system with NativeWind/Tailwind and headless @rn-primitives.
- Implemented offline-first architecture: local SQLite with a sync service handling network detection, queued sync, and gzip compression.
- Built GitHub Actions CI/CD from scratch: PR validation, automated semantic versioning and changelogs, and a multi-platform build matrix (Windows Electron installers, Android EAS builds).
- Added API integration testing on Pulumi-provisioned AWS via GitHub OIDC, plus OpenAPI linting and contract tests.
- Built a serverless telecom roaming-billing pipeline — Python Lambdas on S3 events and EventBridge schedules, Pulumi IaC across multi-region dev/prod stacks.
- Built event-driven alerting (SNS email and Microsoft Teams) and partner file delivery over SFTP via AWS Transfer Family.
- TypeScript
- React Native
- Expo
- Node.js
- Python
- AWS
- Pulumi
- GitHub Actions
- Jest