Senior Flutter Developer

We are looking for a Senior Flutter Developer to lead the greenfield development of a mobile-first learning application for children. The product is being built from scratch, with a strong focus on safe, meaningful screen time, child-friendly UX and AI-assisted learning interactions, while giving parents full control and transparency.

Responsibilities

• Architect and build a scalable mobile-first Flutter application (iOS & Android) with potential expansion to Web.
• Deep integration of Rive App for character animation, state machine management, and real-time lip-syncing synchronized with AI-generated audio (ElevenLabs).
• Implement key modules including the 3D Interactive Globe, the gamified Explorer Path, and the Travel Journal.
• Work with Supabase (BaaS) and WebSockets for real-time data sync; integrate LLMs and Text-to-Speech APIs.
• Build a robust "Parent-Child" account architecture ensuring strict compliance with GDPR, COPPA, and AI Act standards.
• Work in an iterative Kanban environment, translating atomic User Stories into high-quality code.

Requirements

• 5+ years in software development with at least 3+ years of commercial experience specifically with Flutter & Dart.
• Deep expertise in modern state management (Riverpod, Bloc, or Provider).
• Proven experience with Rive (Rive.app) or complex animation libraries. You understand how to handle render loops and state machines.
• Experience with REST/GraphQL, Authentication flows, and Offline-first architecture.
• Strong focus on writing testable code and optimizing performance (rendering 3D/animations without jank).
• English: Upper-Intermediate (B2) or higher.

Nice to Have:

• Experience with Supabase.
• Background in Game Development or EdTech.
• Experience implementing In-App Purchases (RevenueCat or similar) and subscription models.
• Knowledge of 3D rendering in Flutter (Impeller/Shaders).

What We Offer:

• Absence of micromanagement, a culture based on the principles of truth, trust, and transparency.
• Annual salary review.
• Career development according to an individual plan and mentorship.
• 15 working days of vacation, 6 sick days, and public holidays off.
• Individual legal and financial support.
• 50% compensation for coworking costs, English courses, and professional courses.
• Compensation for personal equipment costs.
• Monthly happy hours and online meetings with the team.
• Gifts on birthdays and anniversaries.

Interview stages:

• Screening Interview (30 minutes).
• Technical Interview (45-60 minutes).
• Pre-Offer Meeting (10 minutes).