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Infrastructure Software Engineer

Y Combinator
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Hybrid (SF Bay Area)$130k - $270kFull-timePosted 4d ago

About the role

Infrastructure Software Engineer at Y Combinator responsible for managing and evolving the shared infrastructure on which YC’s software runs, primarily Ruby on Rails applications deployed in AWS, with a focus on platform stability, security, and developer experience.

Responsibilities

  • Provide a stable modern platform for our applications to be deployed to
  • Keep our applications and data secure
  • Improve our developer experience and tools so the YC Software Team can ship product updates quickly
  • Help debug performance issues in our web applications
  • Ship Ruby on Rails and TypeScript code that is shared among multiple YC applications

Qualifications

  • You have at least 5 years of experience developing and deploying web applications
  • You are deeply familiar with the AWS platform specifically ECS, RDS, IAM, and CloudWatch
  • You know how to develop and debug MVC web applications using Ruby on Rails, Postgres, and React
  • You know how to deploy and run applications with AWS and Docker
  • You use Terraform to make infrastructure changes

Skills

Required:Developing and debugging MVC web applicationsAWS & Docker deploymentTerraform for infrastructure changes

Benefits

  • competitive salary and excellent benefits including fully-paid health care benefits and unlimited vacation
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Y Combinator

Not your average fixed point combinator.

Make something people want.

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