Full Stack Software Engineer, React / Rails

We are recruiting for a Full Stack Software Engineer for a fast-growing consumer marketplace technology company in New York City.This role is ideal for an engineer who likes building real products end-to-end, from frontend user experience to backend APIs, data models, analytics, and performance.The work is tied directly to core customer journeys, including search, discovery, booking, account, and post-booking experiences.What You Will DoBuild full-stack features across high-traffic consumer marketplace workflows Develop frontend UI, backend APIs, data model changes, instrumentation, and rollout plans Work with React, Next.js, TypeScript, Ruby on Rails, Node.js, Postgres, and MongoDB Help improve API structure, backend logic, performance, reliability, and scalability Partner closely with Product, Design, Backend, Platform, and Data teams Improve testing, observability, dashboards, alerts, tracing, and operational readiness Help create reusable engineering patterns that make the team faster and more consistent Must Have4+ years of full stack software engineering experience Strong experience building production web applications React and modern JavaScript / TypeScript experience Backend development experience with Ruby on Rails, Node.js, or similar frameworks Experience building APIs and working with databases Comfortable owning features across frontend, backend, data, and analytics Strong product mindset and attention to user experience Strong engineering fundamentals, including code quality, testing, debugging, and reliability PreferredNext.js experience Ruby on Rails experience AWS experience Postgres or MongoDB experience Datadog, RSpec, Playwright, or similar testing / observability tools CS degree or strong computer science fundamentals Experience with consumer products, marketplace platforms, SaaS products, or high-growth startups Additional DetailsLocation: New York, NY Schedule: onsite Monday through Thursday, remote Friday Compensation: $160K to $180K base salary plus equity Relocation is open, but relocation assistance is not provided Authorization: Candidates must be authorized to work in the United States without employer sponsorship now or in the future. This employer is unable to provide or transfer visa sponsorship for this position.