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

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

On site

London, United kingdom

Senior

Full Time

30-10-2025

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Skills

Swift CI/CD Research TensorFlow Computer Vision

Job Specifications

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.

About the Company

We are not just a recruitment agency. We are former SaaS & AI professionals. In comparison to traditional recruitment firms, our team is exclusively made up of SaaS & AI experts and leaders, bringing you a one-of-a-kind approach to finding the ideal candidates, quickly. With our commitment and true industry expertise, we offer a recruitment experience that's second to none. Hiring for sales, marketing, customer success, IT or development? You've just found your trusted partner! Know more