Mobile Developer – (iOS & Android, LLM Applications)

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.

Preferred Qualifications

• 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.