Mainstay (mainstay.io)

Senior Full-Stack Software Engineer

San Francisco Bay Area · Senior

Sponsorship not specifiedDetected 61 days ago

TypeScriptPythonReactNext.jsDjangoFastAPIBackend DevelopmentFull-Stack DevelopmentCode ReviewGitPostgreSQLSnowflakeAWSTerraformAirflowdbtData EngineeringData ScienceLLMsCommunicationCollaboration

About the role

What you should expect as a full-stack senior software engineer - maximum agency, tight feedback loops with customers, and no shortage of product challenges that directly translate to business value!
We're looking for someone who can use AI to efficiently ship features across the stack and ship reliable, production ready AI features end to end - from retrieval pipelines and guardrails to backend systems and user facing product experiences.
Our products are built with Python, Typescript, and React on AWS.

Responsibilities

We build trust with everyone -- from candidates to employees to partners.
Design reliable, scalable backend services to support AI-powered features in production
Build and evolve scalable backend services and APIs that aggregate, enrich, and serve large, complex real estate datasets
Develop and refine frontend and backend product experiences that make sophisticated data intuitive, trustworthy, and actionable
Own technical decisions for systems that sit at the center of Mainstay's SaaS platform and directly influence investor decision-making

Requirements

5+ years of experience building and shipping production-grade software in fast-paced and early-stage start up
Solid frontend experience with React or similar modern frameworks
Experience working with data-heavy, analytics-driven, or workflow-oriented systems
Strong technical judgment and the ability to balance speed, correctness, and long-term maintainability
You enjoy owning complex technical problems from problem definition through production impact
You lack strong backend experience or are uncomfortable owning production systems in Python

Company info

Mainstay is the leading market intelligence platform purpose built for buying, managing, and selling homes in the single family rental industry.
As an AI native company, we turn complex data into clarity that helps the industry move forward with confidence.
Founded within Opendoor, Mainstay launched as an independent company in 2024 and recently raised a Series A round led by Khosla Ventures.
Ready to shape the future of real estate with AI?
Join Mainstay and help us redefine what's possible in the single family rental space.
If you thrive on solving complex problems and want to make a tangible impact in a fast-growing industry, we'd love to hear from you - apply now and let's move the industry forward, together!
At Mainstay, trust is at the core of everything we do.
We are committed to providing reasonable accommodations throughout our recruitment processes for candidates with disabilities, pregnancy, religious beliefs, or other reasons protected by applicable laws.

Equal opportunity

If you require assistance or a reasonable accommodation, please contact us at mainstay-recruiting@opendoor.com

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