M
PythonMachine LearningAI
S
Salary not disclosed
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Role overview
Job description
About us Sierra is the leading platform for customer-facing AI agents, working with many of the world's biggest brands — including The GAP, Rocket Mortgage, SoFi, Sutter Health, and SoftBank — to transform how they serve customers and grow their businesses. We are primarily an in-person company based in San Francisco, with growing offices across North America, Europe, and Asia. We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and a commitment to balancing Family along the way. These values are the foundation of our work, and we are committed to upholding them in everything we do. Our co-founders are Bret Taylor and Clay Bavor . Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was
…About this listing
- Source: Sierra's official careers site (via Ashby) · last confirmed on the source 1 Nov 2026
- Posted 31 Oct 2026
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What they are looking for
Skills & requirements
Qualification
What you’ll bring Currently pursuing a PhD in computer science, machine learning, or a related field; Fluency in Python and modern ML tooling (for example, PyTorch, and LLM inference and training stacks); Even better Research experience with LLM agents, tool use, or multi-turn dialogue; Intern qualifications The internship is open to students currently enrolled in a PhD program
Department · Research
Hiring company
Sierra
Technology
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