Full-Stack Engineer

⚡ About Cosign

Cosign is revolutionizing the $4 trillion rental industry with a market-leading lease cosigning product. Our mission is to expand housing access for renters and boost occupancy for landlords. Backed by top entrepreneurs, venture capital firms, and real estate investors, Cosign is built by experienced landlords who deeply understand the rental market’s needs.

🏆 Role Overview

As an early technical hire, you'll directly shape Cosign's product and engineering direction. Working closely with our CEO, CTO, and Head of Strategy, you'll:

• Build high-impact features and scale our product to match rapid growth

• Collaborate on product strategy and technical architecture decisions

• Implement solutions across our entire stack

We're seeking a versatile engineer with 3+ years of experience, strong React/JavaScript skills, and experience with Ruby on Rails. You should be passionate about creative problem-solving and emerging technologies.

🚀 Our Tech Stack

• Backend + Database: Ruby on Rails, Ruby, PostgreSQL

• Frontend: React, JavaScript, TypeScript, HTML, CSS

• Infrastructure: Render.com (potential AWS/GCP migration planned)

• Other Services: AppSignal, Github Actions, Resend, Cloudflare (R2)

🧑🏻‍💻 Why Join Cosign?

Join at this pivotal growth stage and enjoy competitive compensation, comprehensive benefits, and true work flexibility while making a significant impact. We value autonomy, innovation, and a collaborative culture where your voice matters.

🛎️ Important Details

• Position: Full-Stack Engineer (Proptech/Insurtech)

• Compensation: $100k - $200k + equity

• Locations (US Only): Remote or Hybrid (New York, NY)

Industry

• Financial Services

Employment Type

• Full-time

📩 Ready to apply?

Send your resume (and portfolio, if applicable) to careers@rentwithcosign.com. We can’t wait to meet you!