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Senior Software Engineer, Core Platform

Reddit· Infrastructure
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San Francisco, CA$190.8k - $267.1kFull-timePosted 4mo ago

About the role

Senior Engineer to design, build, and scale Reddit’s media platform and foundational services, focusing on ingestion, processing, storage, and distribution of media at global scale. Mentors junior engineers and partners with remote teams to ensure high uptime, performance, and scalable infrastructure across the organization.

Responsibilities

  • Develop and design new and innovative solutions to scaling Reddit
  • Build platform API projects that scale to the rest of the organization
  • Mentor and coach more junior engineers on your direct team to achieve our mission
  • Build, deliver, and operate services that scale to millions of transactions per second at 5+ 9’s of availability
  • Help us to optimize Reddit’s media experience for hundreds of millions of users across the world

Qualifications

  • Strong software development experience in one or more general purpose programming languages; Python, Go or similar
  • 5+ years of experience with large-scale, mission-critical distributed systems
  • Excellent communication skills. You partner effectively with teams in a fully remote environment and discuss complex topics with technical and non-technical audiences
  • Experienced with GraphQL, gRPC, Thrift, Protobuf, and the ability to design and implement maintainable APIs
  • Familiarity with Kubernetes and cloud platforms (AWS, GCP)
  • History of building clean, maintainable, and well-tested code
  • Media delivery expertise from back end systems to the user. Experience optimizing media performance, scalability, and delivery by improving different stages of the stack
  • Familiarity with media processing and global media distribution; image processing and delivery technologies such as image scaling, cropping, and image formats like progressive JPEG, WebP, HTTP Live Streaming (HLS), MPEG-DASH, MP4, and other streaming protocols, as well as video compression standards (H.264, H.265/HEVC, VP9, AV1), and distribution from user origin, through CDN, to the user experience

Skills

Required:Programming (Python, Go)

Benefits

  • Comprehensive Healthcare Benefits and Income Replacement Programs
  • 401k with Employer Match
  • Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
  • Family Planning Support
  • Gender-Affirming Care
  • Mental Health & Coaching Benefits
  • Flexible Vacation & Paid Volunteer Time Off
  • Generous Paid Parental Leave
Last updated Oct 14, 2026. Interested? Apply on the company site.
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