Mobile Shift Engineer

Mobile Developer – 9-Month Contract | Madrid / Barcelona (Hybrid)

We’re seeking a Mobile Developer to join a pioneering Quantum AI team building cutting-edge applications for iOS, Android, and LLM-powered platforms that deliver real-world impact for global enterprises.

Design, build, and maintain native iOS (Swift / Objective-C) and Android (Kotlin / Java) applications.

Integrate AI, LLM, and NLP capabilities for seamless chat, text, and recommendation features.

Collaborate with designers, product managers, and AI engineers to deliver engaging, high-performance user experiences.

Connect apps to cloud services and APIs, ensuring secure and real-time delivery of AI outputs.

Write clean, efficient, maintainable code, troubleshoot issues, and optimize for quality and scalability.

Monitor performance, contribute to code reviews, and support app deployment to the App Store and Google Play.

Bachelor’s degree in Computer Science, Software Engineering, or related field.

~2+ years’ experience developing and releasing iOS and Android applications, including API / cloud integrations.

~ Strong proficiency in Swift / Objective-C and Kotlin / Java .

~ Familiarity with mobile UI / UX design principles, Git, and Android Studio / Xcode.

~ Experience integrating mobile apps with RESTful APIs and cloud services.