# Case Studies

Selected technical work across mobile, e-commerce integrations, and gaming infrastructure.

- [Care Friends: Xamarin Forms to React Native](https://stevenatkinson.consulting/case-studies/care-friends-react-native.md): Migrated the Care Friends mobile app from Xamarin Forms to React Native with Expo, unlocking streamlined preview builds and store submissions via EAS while keeping feature parity and leaving the existing backend untouched.
- [E-commerce to Xero and QuickBooks](https://stevenatkinson.consulting/case-studies/ecommerce-accounting-integrations.md): Linked an e-commerce platform to Xero and QuickBooks so order activity flowed into accounting without manual re-keying, built on AWS with Laravel and Bref.
- [Gaming stats API for out-of-game campaigns](https://stevenatkinson.consulting/case-studies/gaming-stats-api.md): Built a high-traffic stats API that turned in-game actions into fuel for out-of-game campaigns, with fault tolerance and observability baked into an AWS Node.js serverless stack.

Browse the HTML versions at https://stevenatkinson.consulting/case-studies.