Senior Mobile Developer

About the role We're looking for a talented Mobile App Developer to design and build high performance, user-centric apps for iOS and/or Android, with a focus on embedding AI and on-device intelligence into the product experience. You'll work with audience analytics, data science and engineering teams to bring features like smart recommendations, on-device inference, and generative AI assistants to life, creating reliable mobile experiences that users love. Roles & Responsibilities App Development Design, develop, test and deploy mobile apps using native or cross-platform frameworks (React Native, Flutter/Dart). Write clean, modular, scalable code and follow mobile architecture best practices. AI/ML Integration Embed generative AI capabilities such as chat assistants, AI search, content summarisation via LLM APIs or on-device small language models. Integrate on-device ML models for various features and work with ML engineers to optimize and deploy models for mobile inference Use AI-assisted dev tools to speed up coding and code review. Collaboration & Quality Partner with product managers to build accessible interfaces and with data scientists/engineers on API and model integration Write unit, UI, and integration tests, including validation of AI feature outputs. Maintain CI/CD pipelines for automated builds and releases Performance & Reliability Optimise for speed, battery, and memory, including the added load of on-device AI inference. Debug and resolve crashes, memory leaks and performance issues across devices. Implement secure coding practices and handle data privacy responsibly, especially for AI-driven personalisation. Stakeholder Collaboration Partner with Product Managers, UX/UI Designers, and Backend/ML Engineers to define feature requirements and success criteria. Communicate development approach, trade-offs and progress clearly to both technical and business stakeholders. Required Qualifications At least 5 years of hands-on experience building mobile apps on iOS, Android, or both. Experience building web apps will be a bonus. Proficiency in native or cross-platform (React Native, Flutter/Dart) development Solid understanding of mobile architecture patterns Experience integrating REST/GraphQL APIs and third-party SDKs Experience with on-device ML frameworks and/or integrating LLM/GenAI APIs. Strong debugging and performance-profiling skills, with the ability to diagnose issues across devices. Experience shipping an AI-powered feature, or familiarity with RAG, vector search, or agentic app patterns on mobile. Ability to clearly explain technical concepts and trade-offs to non-technical stakeholders.