Full Stack Developer


Hypothesis is seeking a Full Stack Developer with strong backend expertise and recent experience in applying Generative AI and LLMs to solve real-world problems. Join our mission-driven team in making web annotation as common and essential as comments, enhancing user interaction and engagement.

About the Team

Hypothesis is a supportive, diverse, 100% remote startup backed by leading investors. We work across 8 time zones using Slack, video chat, GitHub, and Notion, targeting education and corporate markets to promote critical thinking and collaboration through our platform.

About the Role

As a Full Stack Developer, you’ll:

  • Develop front and back-end features of our annotation platform.
  • Integrate AI/LLM technologies to enhance user interfaces and backend infrastructure.
  • Work within a dynamic, collaborative team solving complex challenges.


  • Collaborate with developers, designers, and product managers.
  • Write high-quality, well-tested code.
  • Own features from design to deployment.
  • Participate in code reviews.
  • Optimize code performance and system scalability.
  • Implement AI solutions to improve the platform’s capabilities.
  • Stay updated with tech trends and integrate new technologies.
  • Contribute to team discussions and problem-solving sessions.

About You

  • Self-reliant, quality-focused, and willing to learn.
  • Strong problem-solving skills and collaborative spirit.
  • Adaptable, detail-oriented, and innovative.
  • Experience with Generative AI and LLMs.
  • Embrace feedback and strive for continuous growth.


  • Proficient in Full Stack development (JavaScript, React, Python/Pyramid).
  • Experience with SQL and databases like PostgreSQL.
  • Familiar with RESTful APIs, Git, and development best practices.
  • Practical experience in AI/LLM development and integration.

What’s Next

Interested? Contact us at join@hypothes.is with your resume and work examples. We look forward to hearing from you!

Equal Opportunity

Hypothesis values diversity and does not discriminate based on race, religion, color, national origin, citizenship, gender identity or expression, sexual orientation, age, marital status, veteran status, or disability. Let us know if you need accommodations.