Machine Learning Researcher

Jobzhr; New York (NY); On-site; USD 225,000 - 325,000; Full time

Benefits offered by this job

Meaningful equity

Visa sponsorship

In-office in New York City

Job summary

Jobzhr, a seed-stage AI startup, is hiring an ML Researcher to join the founding team in New York City. You will build RL environments, verifiers and evaluation frameworks that support real-world clinical workflows, contributing to safer, more capable clinical AI.

We value strong Python and production engineering skills, a startup mentality with high ownership, and a track record of delivering robust systems beyond research prototypes.

Qualifications

• 3-7 years ML experience.
• Reinforcement Learning and/or Multimodal AI experience.
• Strong Python and production engineering skills.
• Someone who builds robust systems, not just research prototypes.

Responsibilities

• Build RL environments, verifiers and evaluation frameworks for real-world clinical workflows.
• Design robust infrastructure that frontier AI researchers can train against.
• Work with healthcare datasets to improve AI performance on meaningful patient problems.
• Help shape product and technical direction as one of the earliest hires.

Skills

Reinforcement Learning

Multimodal AI

Python

Production engineering

System robustness

Job description

ML Researcher | Healthcare AI | New York | $225,000–$325,000 + Equity

One of the most exciting AI opportunities I've worked on this year.

I'm partnering with a well-funded, seed-stage AI startup that's building the infrastructure behind the next generation of healthcare AI. Rather than building models themselves, they're creating the reinforcement learning environments, evaluation frameworks and verification systems that help frontier AI labs develop safer, more capable clinical AI.

They're looking for an ML Researcher to join their founding team in New York City.

What you'll be working on:

• Building RL environments, verifiers and evaluation frameworks for real-world clinical workflows
• Designing robust infrastructure that frontier AI researchers can train against
• Working with healthcare datasets to improve AI performance on meaningful patient problems
• Helping shape both the product and technical direction as one of the company's earliest hires

What they're looking for:

• Around 3-7 years' ML experience
• Reinforcement Learning and/or Multimodal AI experience
• Strong Python and production engineering skills
• Someone who builds robust systems, not just research prototypes
• Startup mentality with high ownership and autonomy

Package:

• $225,000–$325,000 base
• Meaningful equity
• Visa sponsorship available
• In-office in New York City

This is one of those rare opportunities where you'll have genuine ownership, work alongside an exceptional founding team, and help solve problems that could materially improve healthcare using AI.