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Mobile Developer (iOS, Android and LLM Applications) - Fixed Term Contract - Barcelona Job Opening In barcelona – Now Hiring European Tech Recruit

Mobile Developer (iOS, Android and LLM Applications) Fixed Term Contract Barcelona

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Job description

Mobile Developer


A fantastic opportunity for a driven Mobile Developer to join a leading Quantum AI company, where you will work on cutting-edge solutions for iOS, Android and LLM Applications.

You’ll be working alongside world-leading experts in quantum computing and AI, who are developing solutions that deliver real-world impact for global clients.


This is initially a 9 Month Fixed Term Contract, with scope to extend - *Hybrid working from sites in Madrid or Barcelona.



As a Mobile Developer you will:

  • Design, build, and maintain native mobile applications for both iOS (Swift/Objective-C) and Android (Kotlin/Java) platforms, with a focus on AI/LLM-powered features and APIs.
  • Integrate advanced AI, LLM, and NLP capabilities to deliver seamless in-app chat, text, or recommendation features.

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

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

  • Write clean, maintainable, and efficient code; troubleshoot, debug, and optimize across platforms for quality, reliability, and scalability.

  • Monitor app performance, report issues, and contribute to continuous improvements in codebase and mobile UX.

  • Document development processes, participate in code reviews, and support app deployment to the App Store and Google Play.


Required Qualifications

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

  • Minimum 2 years’ experience developing and releasing iOS and Android mobile applications, including API/cloud integrations.

  • Proficiency in Swift and Objective-C for iOS; Kotlin and Java for Android development.

  • Familiarity with mobile UI/UX design principles, version control (Git), and use of Android Studio/Xcode.

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

  • Ability to communicate effectively and collaborate in a cross-functional product team.



By applying to this role you understand that we may collect your personal data and store and process it on our systems.

For more information please see our Privacy Notice (

Required Skill Profession

Other General


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Unlock Your Mobile Developer Potential: Insight & Career Growth Guide


Real-time Mobile Developer Jobs Trends (Graphical Representation)

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36664 Jobs in Spain
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6274 Jobs in Barcelona
6274
Download Mobile Developer Jobs Trends in Barcelona and Spain

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