Ello

AI/ML Engineer

Ello
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3 months ago
San Francisco, CA, USAMid Level
H1B Sponsor

Base Salary

$155k - $205k/yr

Responsibilities

  • Define the impact of AI on children’s education.
  • Own AI systems and features end to end, from identifying product opportunities through research, evaluation, deployment, and production improvements.
  • Build infrastructure to measure educational quality, engagement, safety, latency, and AI-teacher behavior.
  • Design and improve the tutoring agent harness, including teaching decisions, intervention timing, and adaptation to each child.
  • Develop learner profiling and adaptation systems that model children’s strengths, gaps, pace, and engagement patterns.
  • Create feedback loops and data flywheels that improve product quality through usage, evaluation, and experimentation.
  • Collaborate with learning experts and product engineers while shipping AI features into a real product.

Requirements

  • At least 3 years of experience building AI products in an engineering or research role.
  • Strong software engineering fundamentals and proficiency writing clean Python code.
  • Experience building and operating evaluation or measurement systems, including AI evaluations.
  • Ability to translate ambiguous product-quality questions into metrics, research plans, experiments, and production improvements.
  • Understanding of machine learning foundations, including the ability to read recent ML papers and implement parts of the ML stack.
  • Applied mathematics and linear algebra proficiency sufficient to contribute to research discussions.
  • Experience leveraging AI in engineering workflows and curiosity about how AI is transforming work.
  • Public technical projects, strong product intuition, low-latency inference at scale, model training experience, and familiarity with speech systems are bonus qualifications.

Benefits

  • In-person work from the San Francisco office.
  • Potential US visa sponsorship depending on the candidate’s situation, including O-1 visa support.
  • Collaborative work with a 5-person applied ML team and advisors from Stanford and leading industry research labs.

Tech Stack

Jupyter NotebookPython
Ello

About Ello

11-50 employees

Building a 1:1 teacher was one of the original dreams of AI. It’s finally possible.

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