Machine Learning Engineer

Hello ello • San Francisco, CA

78d

About The Position

Our mission at Ello is simple and urgent: Maximize the potential of every child, everywhere. To close that gap, we're building the world's first AI tutor: one that listens, speaks, adapts, and inspires, just like the best human teachers. Our first product, Read with Ello, is already helping tens of thousands of kids each week learn to read. It listens as they read aloud, offers support when they stumble, and generates magical, personalized stories. Now, we're scaling that success into something even bigger: a complete AI teacher for all children. It's a 1:1 tutor that combines language, speech, and memory to deliver interactive education for kids worldwide. We move fast and test directly with families to create products that kids love.

Requirements

• 3+ years of experience in AI/ML research or engineering, preferably with speech systems or LLMs
• Proven track record across the modeling lifecycle: data acquisition, experimentation, evaluation, and productionization
• Experience with Python, deep learning frameworks, and distributed computing
• Proficiency in applied mathematics and linear algebra at the level where you can contribute to research discussions with a deeply technical team

Nice To Haves

• Public projects that demonstrate technical creativity
• Track record of publications in top machine learning conferences (NeurIPS, ICML, ICLR, etc.)
• Depth in low-latency inference at scale
• Strong product intuition

Responsibilities

• Own projects end-to-end from data through to production (e.g. conversational agents, learner adaptation, or speech perception)
• Collaborate with learning experts and product engineers to translate research into an AI tutor that understands, adapts, and interacts with children everywhere
• Build with the latest advancements in machine learning

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Industry: Publishing Industries
• Number of Employees: 11-50 employees