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about-project :

Are you an experienced mobile developer looking for a challenging project?
At Sii, we’re collaborating with a leader in cloud communication technology, known for revolutionizing the telecommunications industry. We’re seeking a talented Flutter Developer to join our team and contribute to building innovative solutions for voice, video, and messaging applications. This is your chance to work on a cutting-edge project and grow with industry experts.
If you’re ready to take on this exciting opportunity, apply now!

responsibilities :

Developing and implementing core features using Flutter, with a focus on integrating native Android/iOS components when necessary, depending on the project’s requirements
Building custom OAuth 2.0 clients and ensuring secure authentication flows, maintaining high standards of security and scalability
Implementing WebRTC for real-time voice communication, utilizing Flutter plugins, WebSockets, and possibly native solutions for optimal performance across iOS and Android platforms
Designing and developing user interface components with Flutter, aiming for an intuitive and polished user experience
Integrating CRM systems to ensure smooth data synchronization and communication between the mobile application and backend services

requirements-expected :

At least 5 years of experience as a mobile developer, with a strong background in Flutter and native mobile development (either Android or iOS)
Solid experience in either native Android development or native iOS development, combined with expertise in Flutter for cross-platform app development
Proficiency in OAuth 2.0, including the ability to implement secure authentication mechanisms in mobile applications
Experience with WebRTC or SIP for real-time communication, as well as familiarity with WebSockets for building scalable and high-performance applications
Very good command of English – min. B2 level
Fluent Polish required
Residing in Poland required

offered :

Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
Comfortable workplace – class A offices or remote work
Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
Investment in your growth – meetups, webinars, training platform and technology blog – you choose
Fantastic atmosphere created by all Sii Power People

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