Applied AI Engineer: Build On-Device Agents & Backends

Nothing

San Francisco (CA)

Hybrid

USD 159,000 - 242,000

Full time

6 days ago

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Job summary

Nothing is seeking an Applied AI Engineer in San Francisco or remote-eligible for the right candidate. The role emphasizes building agents that complete real tasks, developing the on-device and cloud backend, and solving complex backend challenges.

You will work with our AI and systems teams to integrate agents into the platform and push end-to-end delivery. The candidate will ship with a backend-first mindset using Python, JS/TS, and possibly Rust, with a bias toward practical, high-impact

Qualifications

Shipped working software in professional, personal, or open-source projects.
Backend-first mindset focusing on services, APIs, concurrency, storage, and data flow.
Experience with LLMs or agents or quick to learn and apply them to real problems.

Responsibilities

Build agents that use tools, data and app capabilities to finish real tasks.
Build the backend they run on: services, APIs, storage, and sync between devices and the cloud.
Solve the hard backend problems: concurrency, state and data flow across services and devices.
Work with on-device AI and systems engineers to plug agents into the platform.
Write evals against real tasks, chase down failures and ship fixes.
Own the task end to end, frontend included.
Build with coding agents daily and know when your own judgment should win.