Mobile Developer

C4Media, Inc. (HQ Toronto, Canada. Private. Established in 2007), is seeking a Mobile Developer (contractor) to join our fully remote, global, fun, and friendly team.

As a Mobile Developer, you will focus on execution and delivery , building and maintaining mobile features end-to-end-from consuming APIs and managing state to rendering polished, production-ready UI on iOS and Android.

What You'll Do

• Implement Mobile Features : Build complete features in React Native, from API integration to UI rendering.
• Data & State Handling: Consume REST APIs, manage async data flows, caching, and error states.
• Cross-Platform Delivery: Ensure features behave consistently across iOS and Android.
• Production Readiness: Handle loading states, retries, offline scenarios, and edge cases.
• Collaboration: Work with backend and product teams to implement requirements accurately and efficiently.
• Maintain Codebase: Improve existing code, refactor when needed, and keep technical debt under control.

Job Requirements

Professional Experience, Skills & Education:

• 3-5 years of professional mobile development experience
• Strong proficiency in React Native
• Experience integrating APIs (REST)
• Experience with mobile state management ( Redux )
• Good understanding of mobile performance considerations
• Familiarity with iOS and Android platform differences
• Experience shipping apps to production
• Portfolio required: Examples of shipped apps, repositories, or concrete feature work

Setup Requirements:

• Able to work in a full-time remote position
• Reside in Europe
• Able to work as an independent contractor
• Able to work in overlap with our core global office hours (9 AM - 1 PM EST)
• Quiet home office and ability to work comfortably from home
• Reliable infrastructure: access to high-speed internet and a modern computer
• Able and willing to travel to locations in the USA or Europe 1-3 times per year, with an average stay of 4-8 days, to attend our software conferences and annual company meetings
• Comfortable working with API contracts and backend schemas
• Ability to reason about data models and transform data for UI needs
• Handle authentication flows, tokens, and secure storage
• Implement pagination, background refresh, and optimistic updates
• Debug issues across network, state, and UI layers

Nice to Have:

• Experience with offline-first or poor-network scenarios
• Familiarity with background tasks, push notifications, or deep linking
• Experience with React Native performance tools
• Understanding of basic backend concepts (queues, retries, rate limits)
• Experience working in codebases shared by multiple developers

What Makes You Successful Here

You are someone who:

• Focuses on shipping working features, not just writing components
• Thinks in terms of data flow, edge cases, and failure scenarios
• Can implement a feature from API docs to UI without hand-holding
• Communicates clearly when requirements are unclear or incomplete
• Balances speed with long-term maintainability

What We're Looking For

The ideal candidate:

• Is comfortable sitting between frontend and backend concerns
• Can take a spec and turn it into a complete mobile feature
• Understands that most bugs live in data flow and edge cases
• Is pragmatic about architecture and tooling
• Takes responsibility for the stability of what they ship

Why work for C4Media:

• Work from home - always: We are a remote-first an