MidFull TimeEN
What you work on today shapes where you’ll be tomorrow.
Looking for your next challenge as a IOs Developer? We may have the right opportunity for you.
At B3, we start with people and their experience. We match projects to your skills and professional growth path. Our consultants work across a wide range of industries and technologies, delivering IT projects both in Poland and internationally. This allows you to build your career in a deliberate way - not by chance.
We are part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we operate with full autonomy. We choose our technologies, processes, and ways of working while maintaining the highest professional standards.
Join us today.
What we offer
Work in a Scandinavian culture built on logic, trust, and open dialogue.
Health and sports benefits tailored to your needs.
Speed Coaching – short sessions designed to provide new perspectives and solutions.
Sports training, an internal team, and opportunities to take part in competitions.
Areas of responsibility:
Development of an IoT platform for distributed devices - working on a project connecting home appliances with mobile applications; scale of over 5 million connected devices and nearly 2,000 microservices
iOS application development and testing - implementation and verification of application connectivity with home appliances (BLE pairing), work on iOS architecture, and participation in integration tests with physical hardware in the Warsaw lab
Working in a large, distributed environment — a team of over 300 developers, Swift codebase with Objective-C legacy elements currently being refactored, hybrid model with office presence 1–2 times per week. (Office visits are required due to the size of the hardware used for testing)
What you need to join us:
Must have:
Min. 3 years of experience in professional software development, including min. 2 years in native iOS development
Practical knowledge of Swift, Swift Concurrency (async/await), SwiftUI, UIKit, Combine framework, XCTest, Swift Package Manager (SPM), and memory management
Experience with Bluetooth Low Energy (BLE) and Apple's Core Bluetooth framework
Fluent English
Location: Warsaw or ability to come to Warsaw 1–2 times per week (physical presence required for hardware testing)
Ability to work in Poland (citizenship, residence permit, visa, etc.)
Nice to have:
Knowledge of Objective-C (legacy code in the iOS application)
Knowledge of Polish language (preferred but not required)
