AI/ML Engineer
San Francisco, CA$166k - $230kFull-timePosted 4mo ago
About the role
AI/ML Engineer role at Ello, building the world’s first 1:1 AI teacher. Full-time position in San Francisco, sponsorship available. Role sits at the intersection of research and production, delivering AI features for an education-focused product and evaluating their impact in real-world use by children.
Responsibilities
- Help define the impact of AI on children’s education.
- Own AI systems and features end-to-end: from identifying product opportunities, to building and operating research and evaluation systems, to shipping production improvements used by children worldwide.
- Collaborate with learning experts and product engineers to build infrastructure measuring the educational quality, engagement, safety, latency, and behavior of an AI teacher
- Design and improve the agent harness that powers Ello’s tutoring experience, including how the tutor decides what to teach next, when to intervene, and how to adapt to each child
- Develop learner profiling and adaptation systems that build a model of each child – their strengths, gaps, pace, and engagement patterns – and use that model to drive instructional decisions
- Develop feedback loops and data flywheels that continuously improve product quality through usage, evaluation, and experimentation
Qualifications
- 3+ years of experience building AI products in an engineering or research role.
- Strong Python coding skills and ability to work with engineers of varying backgrounds.
- Experience in evaluating and improving product quality through measurement systems (e.g., AI evals).
- Comfort with experimental thinking and empirical reasoning in AI-enabled products.
- Sufficient applied mathematics and linear algebra knowledge to contribute to research discussions.
Skills
Required:PythonAI product evaluationMachine learning foundationsExperimentation & data-driven decision making
Benefits
- Visa sponsorship available.
Last updated Oct 14, 2026. Interested? Apply on the company site.
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