Mobile Frontend Developer (Flutter or React Native) — contract 1−2 months

Mobile Frontend Developer (Flutter or React Native) — contract 1−2 months

Project: fintech app (iOS/Android) + synchronized web cabinet. Tone — "premium without pomp". Sprint goal: build end-to-end UX of main flows from scratch, integrate with backend, prepare builds for testing.

What we will do (from what must)

Onboarding and registration: email/phone + OTP, live form validations, password checklist.

Profile and AML questionnaire: step-by-step questions with a progress bar.

KYC: document scanning (passport/ID/driving license), tips during shooting, selfie-liveness (SDK), re-upload on failure.

Main dashboard: balances (EUR/GBP/USD + "More"), carousel of accounts/cards, quick actions.

Payments: SEPA / Faster Payments / SWIFT (incoming/outgoing), payment by IBAN, contacts + templates.

Currency exchange: pair "I pay → Receive", rate fixed for 30 minutes, "0% fee" up to the limit, thereafter — spread display.

Cards: virtual (issue, freeze/unfreeze, PIN/CVV), ordering physical (address/delivery, KYC-gate).

Tokenization in Apple Pay / Google Pay (via respective SDKs, with backend support).

Statements: export PDF/CSV.

Tariff plans and upsell: Free / €10 / €20, FX/transfer limits, upgrade in 2 clicks.

Notifications: push (FCM/APNs), in-app.

Support chat and premium agent 24/7: built-in messenger.

Settings/security: 2FA, limits, devices, log out everywhere.

Your role

Build the frontend on Flutter or React Native (no difference, but confidently).

Implement design system (typography, colors, 8-pt grid, icons, Variants) according to Figma.

Connect SDK for KYC/liveness (like Sumsub/Veriff/Ondato) — integrate screens + handle states.

Integrate Apple Pay / Google Pay (set up client-side tokenization).

Connect backend API (NestJS) and handle states: loading/empty/error/offline/timeout/retry.

Cover main events with analytics (screens, submits, failures).

Mandatory requirements

1.5 + years in mobile development, 1+ year deeply in Flutter or React Native.

Commercial experience with forms/validations/OTP, complex navigation flows.

Very neat UI: animations, gesture navigation, accessibility, localization (i18n), RTL — as a plus.

Experience integrating external SDKs (payment/KYC/chat).

Git, code review, readable code, adequate states (Bloc/Riverpod or Redux/RTK/React Query).

Will be a plus

Fintech/banking/RegTech products.

Stripe / Checkout.com / Adyen in mobile.

Knowledge of both stacks (Flutter and RN), Web cabinet on React — as a bonus.

Fastlane/Gradle/Xcode signing, Deep Links, Universal Links.

Stack (of choice)

Flutter: Dart, Navigator 2.0, Bloc/Riverpod, Dio, freezed/json_serializable, go_router, camera, firebase_messaging, in_app_review.

React Native: TypeScript, React Navigation, Redux Toolkit or React Query/Zustand, axios, react-native-camera-vision, react-native-push-notifications, Reanimated.

Work format

Contract: 1−2 months (full-time priority).

Remote, timezone — Europe/Kyiv (UTC+3) ±2.

Start — ASAP.

What we provide

Figma with page-map and Design System, ready icons/components.

Backend API (NestJS), quick reviews, direct access to product owner.

Quick decisions — no bureaucracy. We pay on time.

Expected artifacts from you by the end of the contract

Compiled iOS/Android builds (test + release candidates).

Implemented key flows from the specifications (see above) + handling edge cases.

Connected KYC SDK and Apple/Google Pay (client-side).

Event tracking analytics + basic crash alerts.

Readme on build, short technical summary of architecture.

Selection process

Screen call 20 min.

Technical interview 40 min (live code review + short UI task).

Offer.

How to apply

Send:

CV or link to LinkedIn.

2−3 relevant cases in App Store / Google Play (or demo builds).

GitHub/Bitbucket with examples of architecture/states.

Price negotiable