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Staff Software Engineer

Mainstay Labs

Salary not specified
Dec 5, 2025
Remote, US
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Mainstay is looking to solve complex problems in the single family rental industry by turning complex data into clarity, and is seeking a full-stack Staff Software Engineer to help design, build, and ship complex systems and tools that enable teams to execute at scale.

Requirements

  • 7+ years of experience building and delivering production-grade software, ideally in fast-paced, high-growth startup environments.
  • Strong full-stack engineering skills, with a focus on backend scalability and system reliability.
  • Experience designing, building, and evolving scalable systems and services.
  • Strong Python background; experience with TypeScript and React is also a plus.
  • Experience with workflow automation or complex data integration is a plus.
  • Experience with Python, TypeScript, and React on AWS.
  • Experience building robust, reliable, and production-ready features end to end, from backend systems and retrieval pipelines to user-facing product experiences.

Responsibilities

  • Contribute to all phases of product development, from ideation and prototyping to implementation and iteration.
  • Build and evolve both frontend product experiences and backend services that power them.
  • Design reliable and scalable backend services to support new features in production.
  • Modernize and automate legacy workflows in the real estate industry.
  • Define and ship useful features in partnership with cross-functional teams.
  • Mentor and support the growth of other engineers on the team.
  • Collaborate closely with product managers, designers, and operators to identify and solve customer pain points.

Other

  • Customer-focused mindset with a drive to build solutions that solve real problems.
  • Proactive and ownership-driven - comfortable navigating ambiguity and shifting priorities.
  • Clear, concise communicator - essential for our remote, highly collaborative team.
  • Degree requirements not specified, but 7+ years of experience is required.
  • Mainstay is committed to providing reasonable accommodations throughout our recruitment processes for candidates with disabilities, pregnancy, religious beliefs, or other reasons protected by applicable laws.