Mickael Dumand

– Shipped Le Chat — Mistral's AI assistant — on iOS and Android via React Native (Expo), reaching 2M+ downloads. – Lifted App Store and Google Play ratings from 4.3 → 4.8 through quality and release process improvements. – Built end-to-end mobile QA process: staging variants, EAS release pipelines, and multi-stage validation flow. – Shipped AI-native UX features that surface Mistral's model capabilities directly in the app. Think, a one-tap toggle in the message composer extended reasoning mode, letting users engage thinking models Working Steps — real-time visualization of the model's reasoning process, streaming intermediate steps as the AI works through a problem. Message Archive — archive, restore, and search across past conversations

– Grew social game app to 4M Daily Active Users with <1% crash rate; listed in Top 10 Expo apps (social category).

– Increased daily revenue x10 (€3K → €30K monthly) by implementing ads, in-app purchases, and subscriptions.

• Scale the team from 3 to 10 mobile engineers leading best practices. ○ Led migration of a 150K-line codebase from JavaScript to TypeScript, reducing bugs by 20% and improving maintainability ○ 2 weeks Release process and feature flags implementation

○ Type generation from backend using graphql-codegen ○ Performance optimisation: reducing bundle size from 14.2 to 7.71 MB

○ Design system implementation with visual regression support

github.com/GetLuko/streamline

• CI/CD implementation (Gitlab/Bitrise) with E2E tests 78% coverage.

• Performance and error monitoring maintaining crash rate<1 %

• From 20K to 100K Monthly Active Users.

• App store rating from 3.5 to 4.3 on Google and 4.9 on Apple