Mobile Application Developer

European Tech Recruit are working closely with an exciting quantum software company who are looking for multiple Mobile Application Developers to join their team.

This role is an initial 9 month fixed term contract (with scope to extend) that can offer hybrid work from either Barcelona or Madrid.

In this role 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.

Responsibilities as Mobile Application Developer:

• 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.

Requirements:

• 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.

Desirable experience:

• Experience building mobile apps with LLM, NLP, or generative AI features.
• Familiarity with cloud ML services (AWS, Azure, GCP, OpenAI).
• Prior experience publishing and maintaining apps on both App Store and Google Play.
• Interest in mobile data security and user privacy protections.

If this role is of any interest please apply directly on LinkedIn or send a copy of your CV to [email protected].

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