Applied AI Engineer

Nothing is hiring an Applied AI Engineer to build agents that use tools, data, and app capabilities to complete real tasks. The role focuses on backend services and reliable cross-device, cloud-connected AI, while working with on-device AI and systems engineers to integrate agents into the platform.

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 our on-device AI and systems engineers to plug agents into the platform
• Write evals against real tasks, chase down every failure and ship the fix
• Own the task end to end, frontend included
• Build with coding agents every day, and know when your own judgment should win

Skills

• You've shipped working software: at a job, in your own projects or in open source
• A backend-first mindset: services, APIs, concurrency, storage and how data moves through a system
• You've built with LLMs or agents, or can show us you'd pick them up fast and use them on a real problem
• You can take a vague idea and turn it into something that works
• You learn by building, testing and breaking things
• You like small teams where everyone builds
• Shipped agent products, full-stack products or distributed backend systems
• Python, JavaScript/TypeScript and Rust are all relevant, but strong fundamentals matter more than a list of frameworks

Benefits

• Remote work for the right person, with regular time in person with the SF team.

Company Overview