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Posted 4 months, 2 weeks ago

Mainstay

Staff Software Engineer (Full-stack)

Roles

Tech stack

Location

Remote (US)

Work setup

Full-time Employee
Senior, Principal

Description

Mainstay is a market intelligence platform for large real-estate operators. We’re an AI-native company focused on turning complex, messy, real-world data into systems customers actually trust to make financial decisions. Mainstay was incubated at Opendoor, spun out in 2024, and recently raised a Series A led by Khosla Ventures. Role: Senior/Staff Software Engineer (Full-stack), Remote (US), Full-time. Responsibilities include designing and evolving foundational data models used across the platform; building backend services, workflows, and automation systems end-to-end; applying AI/LLMs pragmatically for automation, reasoning over messy inputs, and decision support; shipping user-facing product features tied to real customer workflows; and owning problems from idea through production and iteration. Stack: Python, TypeScript, React, AWS. Apply: https://www.mainstay.io/careers

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