Staff ML Researcher — Open-Foundations & Scaling

Posted yesterday

reflection aiNew York (NY)

Computer and Information Research Scientists Software Publishers

SENIORITY

Lead

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About the role

Reflection AI Ltd seeks a research-oriented ML engineer to design and scale models, optimize data pipelines, and advance open AI technologies. You will work across algorithms, scaling laws, and model architectures, collaborating with engineers to push the frontier of language models. The role requires a MS/PhD in CS/ML or related field, strong Python and PyTorch skills, and experience with large-scale data processing in a fast-paced startup environment.

Before you apply

Applying takes about a minute. These four things decide how fast it moves after that.

Your profile is current

It's what we read first. Occupations, seniority and locations matter more than a long history.

Two examples you can talk through

Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.

A number in mind

What you're on now and what would make you move. We negotiate better when we know both.

Your notice period

Employers plan around it, and it's the question that stalls offers most often.

Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.