iOS Developer with Bluetooth Low Energy (f/m/x)

Senior • Hybrid

Warsaw, Poland

Join our team as an iOS Software Engineer working on mobile solutions within the Home Connect ecosystem. You will contribute to a mature IoT platform that connects smart home devices used by millions of users worldwide. This role offers the opportunity to shape mobile architecture, improve device connectivity, and build high-quality user experiences in a modern Apple development environment.

The role involves a hybrid work model - two days a week from the Warsaw office.

Your tasks

Design, develop, and maintain native iOS applications for the Home Connect ecosystem using Swift
Contribute to the evolution of mobile architecture and technical standards across the platform
Build intuitive and responsive user interfaces using SwiftUI and UIKit
Implement modern asynchronous solutions using Swift Concurrency (async/await) and reactive programming with Combine
Integrate and enhance smart device connectivity using Bluetooth Low Energy (BLE) and Apple’s Core Bluetooth framework
Ensure software quality through testing, performance optimization, and collaboration with cross-functional product and engineering teams

Requirements

Minimum 4 years of professional software development experience, including at least 2 years focused on native iOS applications
Strong practical knowledge of Swift, including modern language features and clean coding practices
Proficiency in building mobile interfaces using SwiftUI and UIKit
Experience with reactive programming using Combine, unit testing with XCTest, and an understanding of iOS memory management
Familiarity with Swift Package Manager (SPM) and hands-on knowledge of Bluetooth Low Energy (BLE) using Apple’s Core Bluetooth framework
Fluency in English
Residing in Poland required

What we offer

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
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

If you want to work on systems with high operational significance — apply now!

Sii

Sii is a company recognized as a "Great Place to Work" since 2015, thanks to employee feedback and the implementation of new ideas. Established in 2006, Sii has demonstrated financial stability with a revenue of 2.1 billion PLN and no debts. The company shares its profits with employees, having allocated over 76 million PLN for this purpose since 2022. Sii offers a rich benefits package, including private healthcare, a cafeteria platform, and discounts on cars. Employees can work in comfortable A-class offices or remotely. Sii is involved in numerous fascinating projects for prestigious global brands and invests 1 million PLN annually to support employee passions and volunteer actions. The company emphasizes personal development through meetups, webinars, a training platform, and a technology blog. Sii is characterized by a fantastic atmosphere created by its "Sii Power People."

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