2026 Summer AI/ML Engineer Intern jobs in United States
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ThirdLayer (YC W25) ยท 4 months ago

2026 Summer AI/ML Engineer Intern

positionSan Francisco, California, US
timeInternship
remoteOnsite
seniorityIntern
workcardStart in 2026 Summer

ThirdLayer is a company focused on innovative AI solutions, and they are seeking a Summer AI/ML Engineer Intern to work on cutting-edge problems in agent systems and browser-native AI. The intern will collaborate with the research team to develop multi-agent systems and evaluation frameworks while contributing to novel approaches in production.

Artificial Intelligence (AI)Information TechnologyProduct Design

Responsibilities

Browser agent and tool-calling multi-agent systems
Evaluation frameworks for memory, efficiency, and accuracy
Memory and personalization layer for workflows

Qualification

PythonTypeScriptRL environmentsLLMsML frameworksPrompt engineering

Required

Research or work experience with RL environments, LLMs, modern AI frameworks, and/or ML
Experience with prompt engineering strategies
Strong foundation in Python and TypeScript

Company

ThirdLayer (YC W25)

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Applied research and product lab exploring the frontiers of memory, personalization, and intelligent interfaces. hiring@thirdlayer.inc
dateFounded in 2025
location
San Francisco, California, USA
people-size2-10 employees
web-link
https://www.thirdlayer.inc

Funding

Current Stage
Early Stage

Leadership Team

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Regina Lin
Co-Founder, CEO
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Kevin Gu
Co-Founder
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Company data provided by crunchbase