Mobile Application Developer

Role Overview(Remote Mobile App Flutter Developer)

You will build and ship production grade Flutter apps, integrate with Supabase (Auth/RowLevel Security/Edge Functions), design efficient PostgreSQL schemas and SQL queries, and own releases to the App Store and Google Play. Knowledge of websites (web integrations or Flutter Web) is a plus.

Youll thrive here if you:

• Enjoy fast iteration and clean, testable code.
• Can jump between UI, data models, API wiring, and CI/CD.
• Care about performance, reliability, and DX.

Key Responsibilities

• Implement new features in Flutter (Dart) using modern architecture (e.g., Riverpod/Bloc, Navigator 2.0, modular routing).
• Model data and write SQL for Supabase/Postgres; design schemas, indexes, and RLS policies.
• Integrate Supabase Auth (email/phone/3rdparty), Storage, Realtime, Row Level Security, and Edge Functions.
• Build API integrations (REST/GraphQL), handle errors, retries, and offline caching.
• Implement notifications (Firebase Cloud Messaging/APNs) and inapp messaging patterns.
• Own release pipeline: app signing, build flavors, Play Console/App Store Connect metadata, beta testing (TestFlight/Closed Testing).
• Add analytics/telemetry (e.g., Firebase Analytics/GA4/Amplitude/Sentry), define events and funnels.
• Write unit/widget/integration tests and maintain CI/CD (e.g., GitHub Actions, fastlane, codemagic/appcircle).
• Collaborate with design (Figma) and product to scope, estimate, and deliver on time.
• Review PRs, uphold code quality, and document decisions.

MustHave Qualifications

• 2+ years building Flutter apps shipped to App Store and Google Play (provide links or screenshots).
• Strong Dart skills and one of Riverpod/Bloc/Cubit.
• Practical experience with Supabase (Auth, Storage, Realtime or Edge Functions) and solid SQL/PostgreSQL.
• Comfortable designing DB schemas, joins, indexes, and writing performant queries.
• Experience with authentication, secure session handling, and RLS/ACL basics.
• CI/CD basics (Git, branching strategy, code review) and crash/analytics tooling.
• English or Polish for daily collaboration; clear written communication.

Nice to Have

• Flutter Web or basic web skills , or experience integrating with CMS/Wix/WordPress via webhooks/APIs).
• Push notifications deep links, Dynamic Links/Universal Links, deferred deep linking.
• Background services, isolates, local storage (Hive/Drift/SQLite), and caching strategies.
• App performance tuning (jank reduction, frame budget, images, memory).
• Security hygiene (secrets management, obfuscation, jailbreak/root checks, basic OWASP MASVS awareness).
• Payments experience (Stripe/Przelewy24), rating/review prompts, A/B testing.

What You'll Work On (Examples)

• Booking flows (search, slots, reschedule/cancel, payments), chat/DM, notifications.
• Social feed (posts, likes, comments), media upload to Supabase Storage, moderation.
• Business app features: schedule/calendar, inventory, promos, QR booking, leaderboards.
• Data model & SQL to support analytics dashboards and personalization.

Tools & Stack

• Flutter (Dart), Riverpod/Bloc, Freezed/JsonSerializable
• Supabase: Postgres, Auth, RLS, Storage, Realtime, Edge Functions
• CI/CD: GitHub, GitHub Actions, fastlane/Codemagic
• Analytics/QA: Firebase/GA4/Amplitude, Sentry/Crashlytics
• Design: Figma; ticketing in Jira/Linear

KPIs / Success

• Feature lead time and release cadence
• Crashfree sessions & ANR rate
• App performance (cold start, frame render time)
• Event coverage & funnel accuracy
• Code health (review throughput, test coverage on critical paths)Role & responsibilities