JustJoin.IT Hybrydowo Senior

Senior iOS Developer (freelance)

intent

⚲ Warszawa

15 000 - 30 000 PLN netto (B2B)

Wymagania

  • C++
  • SwiftUI
  • BLE
  • Swift
  • C

Opis stanowiska

We are looking for a Senior Mobile iOS Engineer to join an embedded-focused team augmentation project for a global consumer electronics brand. This role goes far beyond classic mobile app development. You will work closely with embedded, firmware, and hardware teams on next-generation products and prototypes, taking ownership across the entire ecosystem, not just the mobile layer. intent has over 10+ years of experience in helping to conceptualize, design, and build apps for IoT and connected devices. We're a software house that acts as a specialized think partner for products at the intersection of physical and digital (like wearables and IoT) - from net-new to products looking to enter a competitive and established niche. Some of our clients include Oura, BOSE, and McIntosh audio systems. What we expect: iOS • 6+ years of commercial experience with Swift and Objective-C • Hands-on experience with SwiftUI and UIKit (complex navigation and custom UI) • Solid understanding of structured concurrency (async/await, GCD) • Reactive programming experience using Combine (or similar frameworks) • Dependency management using Swift Package Manager, CocoaPods, or Carthage • Unit & integration testing using XCTest; TDD mindset is a strong plus • Experience building applications, interacting closely with hardware. • High code quality standards, clean architecture, and attention to performance Cross-platform / Embedded / Ecosystem • Familiarity with C/C++ for shared or native modules • Experience working within embedded or IoT ecosystems, beyond the mobile layer • Understanding of networking fundamentals:• TCP / UDP / IP • REST / HTTP • WebSockets • Experience with secure authentication and authorization: • OAuth 2.0 • OpenID Connect • Session management, RBAC • Knowledge of CI/CD pipelines: • GitHub Actions, Jenkins, or Azure DevOps   Engineering Excellence & Collaboration Requirements • Solid understanding of structured concurrency and async programming • B2+ English, comfortable in everyday technical communication • Strong problem-solving skills and willingness to think outside the box • Care for clean, high-quality code and long-term maintainability • Curiosity about new technologies and readiness to bring good ideas into the team • Team player attitude – knowledge sharing, ownership, and engagement What you'll do:   • Design, build, and maintain advanced mobile applications tightly integrated with embedded systems • Work on new product prototypes and unreleased hardware • Guide and mentor mid-level and junior engineers over time • Participate in architectural decisions across mobile, embedded, and backend layers • Contribute to onboarding, device setup, and connectivity flows • Maintain high standards of security, performance, and code quality Perks and benefits:  • Flexible working hours with core hours between 10:00 and 18:00 CET, with some client meetings scheduled up to 20:00 CET (approx. 2 per week). • knowledge-sharing initiatives, • Moreover, if after a few months of working together, we're all on the same page, then definitely we’ll gladly invite you to join our internal intent team for long-term collaboration, and you’ll enjoy all the benefits, such as paid holidays, paid sick leave, training budget, and much more! Recruitment process:   • A screening call with an HR person (45 mins). • A technical interview with the live coding part (max 90 mins). • Final feedback received within a couple of days after the interview. Join us on this exciting journey where you'll have the opportunity to work on groundbreaking projects and shape the future of the IoT industry. Embrace the challenge, unleash your creativity, and be part of a team that is passionate about making a real impact in the world of technology 🦾