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AI Phone - On-device AI / ML Systems Engineer

Bjak · United Kingdom

Workplace
Hybrid
Job type
Full-time
Posted

About the role

AI Phone - On-device AI / ML Systems Engineer at Bjak in United Kingdom. Hybrid, full-time. Posted November 4, 2026.

About

We are reimagining the phone. AI phones need to be proactive, intuitive, intelligent and low cost. This is a mission critical for rest of the world to adopt intelligence.

There are over 5 billion people using everyday applications such as email, messaging, notes, tasks, and calendars, yet most are not AI-native. Our mission is to build proactive applications and devices that bring intelligence into daily conversations, coordination and workflows, with minimal prompting.

Responsibilities

  • Evaluate suitable open-weight and commercially available models for on-device execution.

  • Benchmark model performance on target mobile hardware.

  • Integrate models into Android applications and system services.

  • Optimize inference latency, memory consumption and power usage.

  • Evaluate quantization, compression and model distillation techniques.

  • Work with CPU, GPU and NPU acceleration.

  • Evaluate local model capabilities for different workflows.

  • Build hybrid local/cloud model routing mechanisms.

  • Identify which tasks can be handled locally and which require cloud inference.

  • Work with AI agent engineers to integrate local models into the agent runtime.

Requirements

  • Strong ML systems or inference engineering experience.

  • Experience deploying and optimizing models.

  • Strong Python and C++ skills.

  • Understanding of neural network inference.

  • Experience with model quantization and performance optimization.

  • Understanding of hardware constraints and inference benchmarks.

Nice to have

  • Experience with on-device LLMs.

  • Qualcomm QNN, MediaTek NeuroPilot or similar acceleration frameworks.

  • ONNX Runtime, LiteRT, TensorFlow Lite or ExecuTorch.

  • Android NDK.

  • Mobile or edge AI deployment.

  • Multimodal model optimization.

Prefer to apply yourself? Apply on Bjak’s site

Quick answers

Where is this job based?

United Kingdom. The role is hybrid.

How do you apply?

Apply on Bjak’s site using the link on this page. With a free Jobmagic account you can see how well you fit first.

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