Senior Software Engineer

Mainstay

full-time

Posted on: 9/22/2025

Origin: • 🇺🇸 United States

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💰 $158,100 - $232,500 per year

Senior

PythonReactTypeScript

About the role

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
Shape solutions from the ground up, own backend and frontend design, automate complex workflows, and apply user feedback
Help set technical direction for the team and turn big ideas into products that create real impact for customers and the business

5+ 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
Clear, concise communicator - essential for our remote, highly collaborative team
Proactive and ownership-driven - comfortable navigating ambiguity and shifting priorities
Customer-focused mindset with a drive to build solutions that solve real problems
Strong Python background; experience with TypeScript and React is a plus
Experience with workflow automation or complex data integration is a plus
Must be located in the United States (We are only hiring within the United States)
Legally authorized to work in the United States (application asks about work authorization and visa sponsorship)