Mobile Developer

Since 1994, the company has expanded from listings into payments, shipping and seller financing. Our engineering, trust and safety, and customer support teams work across offices in Salvador and several other countries.

Role overview:

We are creating this position because the workload has grown. The Member Experience team ships a release every two weeks. We need someone who cares about crash rates, app size and smooth scrolling. Our field staff rely on the app offline for most of the day. This role will help make that experience faster and more reliable. Remote, open to candidates across Brazil.

Job duties:

• Handle deep links, permission prompts and OS version upgrades.
• Review mobile pull requests and share platform knowledge with the team.
• Implement offline storage and sync using Core Data, Room or SQLite.
• Integrate with REST and GraphQL APIs, including token refresh and retries.
• Monitor crash reports in Firebase Crashlytics or Sentry and fix the top issues each sprint.
• Manage App Store Connect and Google Play Console releases, including phased rollouts.

Requirements:

• 3-5 years of professional iOS or Android development.
• Experience with async code (Swift Concurrency, Combine, Kotlin Coroutines, Flow)
• Knowledge of Apple Human Interface Guidelines and Material Design.
• Shipped at least one app to the App Store or Google Play that is still in use.
• Git and code review experience.
• Comfort working with REST APIs and JSON.

What you get:

• Private health insurance.
• Meal vouchers.
• Annual bonus.
• Home office equipment.
• Savings fund.

Shortlisted candidates will hear from us within two weeks.

This posting may close early if we receive enough applications.

Start: Within 30 days.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Bittern Labs.