Founding Engineer (Frontend)

Open Posted on May 13, 2026

At a glance

Pay
$100k – $150k/yr
Type
Full Time
Location
RemoteChicago, Illinois · San Francisco, California
Posted
May 13, 2026
Visa sponsorship
SometimesFrom recent H-1B filings
Company size
Startup (1-50)
Industry
Technology/Software

About the role

We are now looking for a frontend focused Founding Engineer to join our team. As one of our first hires, you will play a pivotal role in shaping the company, our culture, and technology. You will fully own the frontend of Letter AI's web app and help us deliver a world-class user experience driven by the latest advances in generative AI.

Your key responsibilities will include

  • Develop high-performance, responsive frontend interface using React and Redux
  • Implement engaging and delightful UI experiences using Material UI
  • Take full ownership of the frontend code, ensuring its quality, scalability, reliability and maintainability in an AWS environment
  • Collaborate closely with the backend team to ensure smooth integration and contribute to architectural decisions.
  • Understand customers needs and use that knowledge to improve the user experience

Qualifications

  • 3+ years of experience in frontend development
  • Proven experience working with TypeScript/JavaScript, React, Redux, and Material UI
  • Integrating with backend APIs, using techniques like caching to improve performance
  • Knowledge of automated UI testing frameworks
  • Past experience or strong interest in generative AI
  • Highly collaborative mindset with strong communication and problem-solving skills
  • As a part of the team at this early stage, you will not only receive competitive salary and benefits, but also a significant equity stake in the company. We are seeking teammates who are resourceful, ambitious, solution-oriented, and humble.
  • Join us on this exciting journey to build the world's next leading sales software company. We look forward to hearing from you!

About Letter AI

Letter AI
Technology/Software · Startup (1-50)
YC Backed

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