Senior Mobile Developer | up to €125K | London or Madrid

Senior Mobile Developer | up to €125K | London or Madrid

Our client is a global AI company whose technology powers everything from cutting-edge research to industrial applications. Their open-source tools are used by millions of developers and have become a benchmark for performance and accessibility in computer vision. Now, they’re expanding their mobile capabilities, bringing the power of their models to devices everywhere.

They’re looking for a Senior Mobile Developer who combines deep native experience with a passion for building tools developers love. Someone who gets excited about optimising AI models for mobile, pushing hardware performance, and creating SDKs and packages adopted by a global developer community.

🔥 What You’ll Get

• Competitive salary — up to €125K, depending on experience.
• Work on-site in London or Madrid alongside world-class AI and ML engineers.
• Full ownership of open-source mobile SDKs and packages used by millions worldwide.
• The opportunity to shape the next generation of on-device intelligence — fast, accessible, and open.

🧠 Your Impact

• Design, build, and maintain mobile SDKs, plugins, and packages (Pub.dev, Swift Package Manager).
• Deliver high-performance native experiences across Flutter and iOS.
• Integrate real-time inference models, optimise camera pipelines, and push device performance limits.
• Contribute clean, well-documented, open-source code — shipped through CI/CD and seen globally.

✅ What We’re Looking For

• 5+ years of professional mobile development experience (Flutter and/or iOS/Swift).
• A proven record of publishing and maintaining public packages or libraries.
• Strong understanding of native performance, memory management, and camera APIs.
• Hands-on experience with Core ML, TensorFlow Lite, or ONNX Runtime for on-device inference.

👀 What Will Make You Stand Out

• Contributions to open-source mobile, AI, or computer vision projects.
• Experience with Metal, MPS, or NNAPI for acceleration.
• Background in computer vision or edge inference.
• A builder’s mindset — passionate about crafting developer-focused tools that make a real impact.

Ready to make AI truly mobile? Join a team pushing the boundaries of on-device intelligence, and help shape the future of accessible, real-time AI.