Marc Kalil

Emeria (Foncia group), Europe's leading residential real-estate services company. Development of the MyConstat app for Constatimmo, the group's property-inspection entity: digitizing property inspections, from individual homes (room by room) to entire buildings (structures, common areas). • Corrective and evolutive maintenance: diagnosing and fixing bugs, hardening a business-critical app used daily in the field by property experts • New-feature POCs: rapid prototyping to validate product and technical choices before industrialization Stack: React Native · Expo · TypeScript

Club Med brings its mobile app — a travel companion reserved for its members — back in-house, with a complete redesign of both design and features. My role: • Built the new React Native application from scratch, in a three-person front-end team • Set up the design system, ensuring visual consistency across iOS and Android • Shipped features continuously for 3.5 years: from V1 to a mature, multilingual consumer app deployed worldwide Contract renewed continuously for 3.5 years. Stack: React Native · Expo · TypeScript

CACD2, Crédit Agricole's digital factory, ran a study for one of its internal clients: moving from native to cross-platform apps, with two candidate frameworks — Flutter and React Native. My role: independently build the React Native POC, in parallel with the Flutter one, enabling an objective comparison of the two technologies (performance, developer experience, UI rendering). Stack: React Native · TypeScript

Sharecare won the French national health insurance (CNAM) tender to modernize Tabac Info Service, the official smoking-cessation app: full redesign and migration from Ionic to React Native. My role, within a team of 2 front-end developers and 1 back-end developer: rebuilding features in React Native as part of the migration. A free, public-health application supporting smokers across France on their quitting journey. Stack: React Native · TypeScript

Free2move, a PSA (now Stellantis) × Capgemini joint venture, aggregates automotive services: parking, trip planning, car sharing. My role, in a team of 3 front-end and 4 back-end developers: evolving the React Native application and shipping new features. Stack: React Native · Redux

Following its acquisition by hotel group Jin Jiang, Louvre Hotels Group invested heavily in digitizing its web and mobile services. My role: • Project initialization of the new mobile app: React Native architecture and library choices • Application development within a team of 4 front-end developers and 1 back-end developer Stack: React Native · Redux

One Fine Stay (Accor group) rents exceptional private homes to travelers. Front-end reinforcement for the build of the new website: feature development in React. Stack: React · Redux

Job2Day provides recruitment fairs with tablet kiosks: job applications, document scanning, job search. Complete rebuild of the iOS app in React Native to make it available on both iOS and Android, in a two-person front-end team.

8 years creating 3D imagery: modeling, rendering, compositing and visual effects for architecture, advertising and short films. A visual background that now fuels my UX/UI standards in mobile development.