Freelance BLE Expert iOS Android or Flutter

1 tydzień temu

Warszawa, mazowieckie, Polska intent Pełny etat 15 zł

We’re looking for an experienced Bluetooth Low Energy Expert to join our team as a freelancer immediately. If you have a strong commercial background in BLE, IoT, and mobile development (iOS, Android or Flutter), and you can independently implement BLE solutions in real projects, we want to hear from you.


As a specialized software house, we work on innovative IoT solutions for top-tier clients like Oura, BOSE, and McIntosh. This is an opportunity to work on a high-impact project where your deep BLE knowledge will be critical.


Our next project in this area is kicking off in January/February, so we’re starting the search now to bring the right person on board in time.


Who we’re looking for:


  • Proven commercial experience with BLE – deep understanding of communication protocols, peripheral connections, and troubleshooting.

  • Strong mobile development skills – expertise in either iOS (Swift, Core Bluetooth), Android (Kotlin, BLE APIs) or Flutter (Dart, BLE packages).

  • Experience in IoT – working with connected devices, sensors, and embedded systems.

  • Solid knowledge of Unit Testing and best practices in mobile development (XCTest, Quick/Nimble for iOS; JUnit, Mockito for Android or Flutter test frameworks).

  • Familiarity with concurrency and performance optimization for BLE applications.

  • Fluent English (B2+) – written and spoken.


Nice to have:


  • Experience with Bluetooth 5+ and advanced BLE features (Long Range, Mesh).

  • Previous work in IoT security and encrypted BLE communication.

  • Understanding of functional reactive programming (RxSwift, Jetpack Compose, or Flutter’s reactive state management approaches like Riverpod/Bloc).

  • Knowledge of Google Play/Android Auto, Apple MFi programs, or Flutter’s app distribution and integration processes.


What we offer:


  • Fully remote and flexible work.

  • Competitive freelance B2B rate (15-30k net, depending on experience).

  • The chance to work on a cutting-edge IoT project with a highly skilled team.

  • A clear and fast recruitment process.


Recruitment process:


  1. Quick screening call with HR (45 min).

  2. Technical interview with live coding (max. 90 min).

  3. Final feedback within a couple of days.


If you’re a BLE pro and ready to jump into an exciting IoT project right now, let’s talk

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