Senior Flutter Developer

About the company

Invia Travel Group is a prominent pan-European online travel agency with over 800 employees. We operate in several European countries, including Germany, Austria, Switzerland, Poland, the Czech Republic, Slovakia, and Hungary.

We have a variety of online travel platforms that cater to different aspects of travel and accommodation. These platforms include , , which offers a wide range of summer and winter tours; Ab-in-den-, which provides last-minute trips, vacation packages, apartments, flights, rental cars, and a platform that provides flight offers from over 550 airlines; and several others, each specializing in various facets of travel and accommodation.

Invia Group's story is marked by rapid growth and expansion, having entered seven countries within two years. We merged operations from different countries to form the current Invia Group, a dominant online player in the DACH (Germany, Austria, Switzerland) and CEE (Central and Eastern Europe) regions.

Invia Group's mission is to help people travel the world. We aspire to become the most customer-centric provider among Online Travel Agencies. We are focused on expanding our position in the online travel market and aim to be a one-stop-shop package platform for customers, offering everything from traditional package tours to tailored individual trips.

The role of a Flutter Developer is crucial in shaping the future of the travel business. As a key component of the strategic vision, mobile applications are essential for delivering exceptional user experiences. A passion for Flutter development is important for contributing to the seamless customer journey. This position offers an opportunity to be part of the revolution in the travel industry through innovative mobile applications.

Your responsibilities

• Develop and maintain high-quality mobile applications using the Flutter framework.
• Design and implement solutions that ensure optimal performance and aesthetics for both Android and iOS.
• Writing clean, efficient and well-structured code to find the most appropriate technical solutions for various requirements.
• Apply the BLoC pattern for effective and scalable state management.
• Work with CI/CD (Continuous Integration / Continuous Deployment) pipelines to ensure smooth app delivery and updates.
• Collaborate with the development team to design and maintain a clean, scalable architecture that supports app performance and long-term growth.
• Optimize application performance and troubleshoot issues related to speed, memory, and user experience.
• Write and maintain documentation for implemented features, architecture, and best practices.
• Contribute to architectural decisions, ensuring scalability, modularity, and long-term maintainability of the codebase.
• Participate in code reviews, ensuring consistency, maintainability, and adherence to best practices.

Our requirements

• At least 4 years of practical experience in mobile application development using Flutter and Dart.
• Strong understanding of Flutter SDK and state management solutions (Bloc, Provider, etc.).
• Strong understanding of mobile application lifecycle across Flutter,Android,and iOS platforms.
• Hands-on experience with custom widgets, animations, and platformchannels.
• Experience with REST APIs and Databases integration.
• Familiarity with Firebase services (Messaging, Crashlytics, Remote Config).
• Strong understanding of SOLID principles and Clean Architecture.
• Experience writing unit, widget, and integrationtests.
• Proven experience building and releasing Flutter apps for Android and iOS, available on the Google Play Store or App Store.

Nice to have:

• Experience developing native modules (Swift / Kotlin / Java).
• Experience in Agile / Scrum environments.
• Interest in the travel industry and experience working on travel-related mobile applications.

Our offer

• Competitive Salary: PLN net (B2B), commensurate with skills and experience
• Contract: B2B
• Paid Holidays: Enjoy 30 days of paid leave (on B2B)
• Flexible Working Hours: Our core hours are 9 AM to 3 PM
• Hybrid Work Model: Work 2 days in the office and 3 days from home
• Health and Wellness: Shared costs for sports activities and private medical care
• Professional Development: Shared costs for training and courses
• Life Insurance: Comprehensive coverage for peace of mind
• Employee Discounts: Access to corporate products and services at discounted prices

If the above sounds like an interesting opportunity we would be more than happy to hear from you

Please send your resume in English.