Senior Full-Stack Engineer – AI-Driven Experience, Hybrid

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About the role

Rainier Recruiting is seeking a senior Full-Stack Engineer in Seattle, hybrid, to build out our core agentic consumer experience. You will own feature implementation end to end and ship full-stack capabilities across web and mobile surfaces, with authentication, data modeling, and AI-powered streaming at the core. We expect autonomy, strong craftsmanship, and a generalist mindset to thrive in our fast-paced startup environment.

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Your profile is current

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Two examples you can talk through

Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.

A number in mind

What you're on now and what would make you move. We negotiate better when we know both.

Your notice period

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Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.