Middle Strong/Senior Kotlin Multiplatform Engineer

The project is responsible for improving home safety for seniors and people with mobility challenges, helping them age in place with greater independence and a lower risk of falls.

Tech requirements:

• 3+ years of experience with Kotlin and strong familiarity with Kotlin idioms, coroutines, and Flow;
• 2+ years of experience with Kotlin Multiplatform (KMP) and Compose Multiplatform in a production setting;
• Solid Android development experience, including Gradle build system, multi-flavor/multi-dimension builds, signing configurations, and Android Studio tooling;
• Working knowledge of iOS development — comfortable navigating Xcode projects, schemes, xcconfig files, and debugging KMP-generated iOS builds;
• Hands-on experience with Firebase — Firestore, Authentication, Cloud Functions, Cloud Messaging, Remote Config, and Security Rules;
• Experience with Clean Architecture or similar layered architecture patterns in mobile applications;
• Familiarity with dependency injection frameworks (Koin preferred);
• Experience integrating payment systems (Stripe preferred), including PaymentSheet, Connect, and webhook handling;
• Proficiency with Git and collaborative development workflows.

Nice to have:

• Experience with TypeScript/Node.js for serverless functions;
• Experience with Stripe Connect (marketplace/platform payment flows);
• Familiarity with Google Maps SDK and location services (background GPS tracking);
• Experience with analytics platforms (Mixpanel or similar);
• Understanding of Firestore data modeling and query constraints;
• Experience managing multi-environment deployments (local emulators → dev → staging → production);
• Familiarity with React (for admin portal contributions);
• Experience with CI/CD pipelines for mobile app distribution.

What you will do:

• Develop and maintain a Kotlin Multiplatform codebase that powers three distinct applications (Family, Service Provider, Admin) across Android, iOS, and Web;
• Design and implement features end-to-end following Clean Architecture principles: domain entities → repository interfaces → data layer → presentation (ViewModel/EventRouter/Handler) → Compose UI;
• Work within an event-driven architecture where user interactions flow through Events → EventDispatchers → EventRouters → Handlers → ViewState → UI;
• Build and extend Firebase Cloud Functions (TypeScript) for appointment management, provider matching, payment processing, and push notifications;
• Integrate and maintain third-party services including Stripe (PaymentSheet & Connect), Google Maps SDK, Mixpanel analytics, and Firebase Cloud Messaging, etc;
• Manage multi-dimensional build configurations across 3 app types × 4 environments (local, dev, staging, production), including Android build variants, iOS Xcode schemes, and per-environment Firebase projects;
• Implement platform-specific features such as background GPS tracking, native payment sheets, push notification handling, and permission management across Android and iOS;
• Collaborate on backend logic, including provider assignment algorithms (geographic bounding, availability filtering, service capability matching), real-time location tracking, and Firestore security rules;
• Maintain code quality through ktlint formatting, pre-commit hooks, and disciplined architectural patterns;

• Participate in deployment workflows across Firebase environments and mobile app releases.

   

Hiring process: → Interview with Recruiter (up to 30 min) → Technical interview (up to 60 min) → Client interview (up to 60 min) → Offer 🥳