April 25, 2026

Mobile App Developer (m/f/d)

Senior • Remote

Wroclaw, Poland

Jesteśmy zespołem tworzącym aplikacje do obsługi klienta w grupie KRUK. Naszymi produktami są min aplikacja web – e-kruk.pl oraz aplikacja mobilna. Tworzymy zarówno dla naszego rodzimego rynku, jak i dla rynków zagranicznych. Jesteśmy zorganizowani w nieduże zespoły pracujące zwinnie (Scrum lub Kanban). Na co dzień współpracujemy z Product Ownerem, Designerem, innymi programistami oraz testerami. Sam proces wytwarzania zaczyna się od analizy wymagań, projektowanie, implementację, code review i testy na wdrożeniu kończąc. Cenimy ludzi aktywnych i zaangażowanych. Bazujemy na wzajemnym szacunku i zaufaniu. Stawiamy na rozwój.

Do jednego z zespołów poszukujemy osoby na stanowisko Mobile App Developer – specjalistę/kę w Flutterze do rozwoju aplikacji mobilnej na systemy iOS i Android

 Zakres obowiązków:

  • Udział w projektowaniu aplikacji – współpraca z UX designerami i analitykami
    biznesowymi przy definiowaniu wymagań i architektury nowych funkcjonalności

  • Przygotowanie struktury aplikacji – projektowanie modułów w monorepo (Melos),
    warstw Clean Architecture, interfejsów między domain / remote / presentation

  • Implementacja aplikacji – tworzenie funkcjonalności w Flutter z użyciem BLoC,
    go_router, Dio/Retrofit, Freezed, get_it, fpdart

  • Opracowywanie testów jednostkowych i testów BLoC

  • Wdrożenie i dystrybucja aplikacji – zarządzanie procesem release na App Store i
    Google Play

  • Wsparcie dla innych członków zespołu, dzielenie się wiedzą

Nasze wymagania:

  • Min. 4 lata doświadczenia w programowaniu aplikacji mobilnych (Android / iOS),
    w tym min. 2 lata komercyjnie z Flutter

  • Znajomość Flutter 3.x i języka Dart (null-safety, async/await, Streams, Records)

  • Znajomość języka Kotlin lub Swift (platform channels, natywne pluginy)

  • Znajomość BLoC / Cubit (flutter_bloc), Freezed, get_it oraz go_router / Navigator
    2.0

  • Znajomość programowania funkcyjnego – fpdart lub dartz (Either, Option,
    TaskEither)

  • Umiejętność pisania testów jednostkowych i testów BLoC

  • Znajomość Git i GitFlow

  • Znajomość CI/CD dla aplikacji mobilnych – Bitrise, Fastlane, Flutter flavors,
    dystrybucja przez Firebase App Distribution / TestFlight / Google Play Console

  • Znajomość języka angielskiego na poziomie min. B2 (dokumentacja, commit
    messages i PR naming w projekcie są po angielsku)

 Mile widziane:

  • Doświadczenie z monorepo (Melos), Mason, FVM

  • Znajomość Firebase (Crashlytics, FCM, App Distribution)

  • Znajomość narzędzi analitycznych (Piwik PRO, Clarity)

  • Doświadczenie w technologiach backendowych .NET albo JAVA (API)

  • Doświadczenie z bazami danych SQL

  • Doświadczenie w branży fintech lub regulated products

Co oferujemy?

  • Zatrudnienie w oparciu o: umowę o pracę

  • Elastyczne godziny rozpoczęcia pracy (w przedziale 6:00-11:00)

  • Możliwość pełnej pracy zdalnej / w modelu hybrydowym

  • Atrakcyjny pakiet benefitów dla pracowników: możliwość skorzystania z prywatnej opieki medycznej: Luxmed, dofinansowanie do karty Multisport, dodatkowe świadczenia dopasowane do Twoich potrzeb w ramach systemu kafeterii, ubezpieczenie grupowe dla pracownika na preferencyjnych warunkach

  • Dostęp do Mindgram – nowoczesnej platformy z profesjonalnym wsparciem psychologicznym i wellbeingowym

  • Możliwość uzyskania atrakcyjnego bonusu w programie poleceń pracowniczych

  • Możliwość wypożyczenia samochodu firmowego do użytku prywatnego

 

Podczas rekrutacji dbamy o inkluzywność procesu i przestrzegamy zasad równych szans. Liczą się dla nas kompetencje i chęć rozwoju osób kandydujących, bez względu na ich płeć, wiek, stopień sprawności, wyznanie, orientację seksualną, pochodzenie lub inne kwestie niezwiązane z wymaganymi umiejętnościami. Dokładamy starań, by proces rekrutacji był dostępny i dostosowany do adekwatnych potrzeb.

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Krakow, Poland

38 - 42 USD

🏢 Summary: Part-time Senior Flutter Developer role focused on building and optimizing high-quality mobile applications for innovative smart bed IoT products. The position involves developing, testing, and maintaining Flutter-based solutions while ensuring performance, scalability, and code quality. Close collaboration with the development team and continuous improvement of application performance are key aspects of the role. 🗂️ Requirements: Proven commercial experience with Flutter and Dart, Experience in IoT projects, Experience with CoreData, Realm, Firestore or Supabase PostgreSQL, Knowledge of Android, iOS, Windows and macOS systems, Experience with Git-based workflows and CI/CD tools, Experience integrating and working with RESTful APIs, Fluent English, Availability for part-time work (10–20 hours/week) with US time zone overlap 📃 Skills: Flutter, Dart, IoT, CoreData, Realm, Firestore, Supabase, PostgreSQL, Android, iOS, Windows, macOS, Git, GitHub, GitLab, GitHubActions, Jenkins, REST, Postman 🏢 Description: #5084 Our client is a leading innovator in the U.S. market, creating cutting-edge, high-end smart beds engineered for superior performance. We are looking for a Senior Flutter Developer who is technically proficient, proactive, and excels in collaborative environments. Responsibilities: Collaborate closely with the development team to design and implement high-quality software solutions using Flutter technologies Develop, test, and maintain mobile applications that meet internal and external client expectations Analyzing and improving application performance Bug fixing Ensure code quality, performance, and scalability through continuous improvement and best practices Requirements: Proven experience in mobile development with Flutter and Dart Experience working with IoT project Experience working with CoreData, Realm, Firestore, Supabase PostgreSQL Knowledge of operating system Android, iOS, Windows, macOS Knowledge of tools and technologies GitHub Actions, Jenkins, Git, GitHub, GitLab, RESTful APIs,  Postman Fluency in English language for effective communication Ability to work part-time (10-20 hours/week), ideally with at least 2-hour overlap with US time zones

Technology

AQUAEL

Flutter Developer

Mid

Hybrid

Warsaw, Poland

8,000 - 12,000 PLN/mo

🏢 Summary: Mid Flutter Developer role focused on developing and maintaining Android and iOS mobile applications, including a new UX-focused app version. The position involves implementing new features, testing, code reviews, and collaboration on product roadmaps in a hybrid work model. 🗂️ Requirements: 3+ years of programming experience, 2–3+ years of mobile application development experience, Commercial experience with Flutter and Dart, Higher technical education or ongoing master’s studies, English level B2 minimum, Polish level C1/C2, Experience with Android and iOS development, Experience with unit and integration testing, Knowledge of REST API and MQTT protocol, Experience with Git and GitHub Actions, Availability for hybrid work with at least 3 days in the office 📃 Skills: Flutter, Dart, Git, BLE, Android, iOS, Copilot, Agents, REST, MQTT, Riverpod, Firebase, GitHub, Xcode, VSCode, Postgres, C++, PlatformIO, AWS 🏢 Description: Stanowisko : Mid Flutter Developer Zarobki : do 12 kPLN netto - w zależności od doświadczenia Doświadczenie : aplikacje mobilne min. 2/3 lata, programowanie – min. 3 lata Wykształcenie : wyższe techniczne – inż. - najlepiej informatyczne, lub w trakcie magisterskich Języki: angielski B2 min., Polski C1/C2 Technologie : git, dart, flutter, BLE, android, iOS, copilot, agents, unit/integration tests, REST API, MQTT protocol, riverpod – state management, firebase – auth, functions, messaging, github actions, Xcode, VS code, Postgres Nice To Have : C++ i platformio, AWS, doświadczenie z publikacja aplikacji w App Store i Google Play Praca : hybrydowa – min. 3 dni w biurze w Warszawie na Ursynowie! Typ umowy: UoP / B2B / Zlecenie Czym będziesz się zajmować? ·      Rozwijanie i utrzymywanie istniejącej aplikacji mobilnej Android i iOS ·      Rozwój równolegle nowej wersji aplikacji – nowy UX (główne zadanie) ·      Implementacja nowych funkcjonalności ·      Testowanie aplikacji oraz identyfikowanie obszarów do poprawy wydajności i jakości ·      Code-Review ·      Współpraca z zespołem inżynierów nad rozwojem urządzeń i aplikacji ·      Wspólne planowanie road-mapy, releasów W czym pracujemy? ·      Firma pracuje w systemie Microsoft365 ·      korzystamy z Teams i plannera Microsoft ·      tbh Agile w małych zespołach IS DEAD, daily i po prostu staramy się robić częste releasy Wyposażenie: ·      nowoczesny sprzęt (MacBook Pro + urządzenia testowe), Proces rekrutacyjny: ·      quick call (45 min max) ·      technical call (z zespołem) ·      final feedback Projekty[Linki]: Aquael BT, Amisafe