Mobile Developer - iOS & Android / LLMs 9-Month Contract
Our client is building mobile apps that bring advanced AI directly to users’ fingertips. They are looking for a number of Mobile Developers with iOS and Android experience to help make this happen. The contract is a fixed-term 9 months, with a hybrid work model in Madrid. A base salary plus bonus and retention bonus is provided.
Responsibilities
- Design and build native iOS and Android apps with AI-powered features
- Integrate cutting-edge LLM and NLP capabilities into real-time user experiences
- Collaborate with designers, product managers, and AI engineers
- Deliver secure, high-performance apps to millions of users
What you’ll need
Experience developing and shipping apps on both iOS (Swift / Obj-C) and Android (Kotlin / Java)Familiarity with REST APIs, cloud services, and app store deploymentBSc in Computer Science, Software Engineering, or related technical field2+ years’ experience developing and releasing iOS and Android mobile applications, including API / cloud integrationsProficiency in Swift and Objective-C for iOS; Kotlin and Java for AndroidFamiliarity with mobile UI / UX design principles, version control (Git), and IDEs (Xcode / Android Studio)Experience integrating mobile apps with RESTful APIs and cloud servicesDesired skills
Experience building mobile apps with LLM, NLP, or generative AI featuresFamiliarity with cloud ML services (AWS, Azure, GCP, OpenAI)Prior experience publishing and maintaining apps on App Store and Google PlayInterest in mobile data security and user privacy protectionsThis is a unique opportunity to combine mobile development with frontier AI technology, shaping products that will change how people interact with intelligent systems.
In accordance with local employment laws, applicants must have current, valid authority to work in Spain at the time of application. We are unable to sponsor employment visas for this role. Applications from individuals without existing work authorization for Spain cannot be considered.
If this sounds interesting and you’d like to learn more, click the link below to apply or email your CV to
Privacy notice : 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 (
Employment details
Seniority level : AssociateEmployment type : ContractJob function : Engineering, Information Technology, and OtherIndustries : Software Development, Computer Hardware Manufacturing, Technology, Information and Media#J-18808-Ljbffr