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Cuckoo (YC W25) Logo

Full Stack Engineering Internship (Summer 2026)

Cuckoo (YC W25)

Salary not specified
Aug 29, 2025
San Francisco, CA, US
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Cuckoo needs to ensure mission-critical reliability for high-stakes meetings, provide personalized and context-aware translation that replicates an in-house translator, and deliver a seamless user experience where tools fade into the background.

Requirements

  • Scale infrastructure to support 1,000+ concurrent multilingual meetings.
  • Build resilient fallback paths to ensure guaranteed translation, whether users are on Zoom, desktop, or mobile.
  • Support highly confidential conversations through techniques like in-memory translation and enterprise-grade certifications like SOC 2 Type II.
  • Build real-time monitoring and observability tools to detect and resolve issues before our customers notice—whether it’s during the meeting or minutes before it begins.
  • Extracting and applying context from our customers’ knowledge bases and past conversations using techniques like RAG.
  • Making it easy to upload and manage team- and industry-specific terms, and integrating seamlessly with tools like Notion, HubSpot, and internal wikis.
  • Optimizing translation latency and perceived delay through sentence chunking.

Responsibilities

  • Scale infrastructure to support 1,000+ concurrent multilingual meetings.
  • Build resilient fallback paths to ensure guaranteed translation, whether users are on Zoom, desktop, or mobile.
  • Support highly confidential conversations through techniques like in-memory translation and enterprise-grade certifications like SOC 2 Type II.
  • Build real-time monitoring and observability tools to detect and resolve issues before our customers notice—whether it’s during the meeting or minutes before it begins.
  • Extracting and applying context from our customers’ knowledge bases and past conversations using techniques like RAG.
  • Making it easy to upload and manage team- and industry-specific terms, and integrating seamlessly with tools like Notion, HubSpot, and internal wikis.
  • Enabling live, context-aware chat companion alongside transcripts, so users get real-time insights that are tailored to each participant.

Other

  • Our customers rely on us for high-stakes meetings—from closing contracts to resolving production incidents.
  • Any failure on our side is a lost business opportunity for our customers.
  • We’re replicating the experience of an in-house translator that understands the product, the team, the customer, and the stakes of every conversation.
  • Our customers would often compare our translator to local sales rep, marketing manager, and support engineer.
  • Global teams do their best work when tools fade into the background.