AI Research Intern - Optexity

Pear VC • Palo Alto, CA

9h

About The Position

Optexity is a product-driven research lab building clinical reasoning and computer use models on data no other lab can reach. We deploy directly inside clinics and hospitals — including systems with no APIs, using integration infrastructure we've built and open-sourced — and in return become their preferred partner. That gives us proprietary clinical reasoning trajectories from practicing physicians, and a feedback loop between real patient encounters, our models, and the products built on top of them.
We're a small, fast-moving founding team with multiple published papers in NeurIPS, ICML, CVPR etc and background from Apple, Amazon, Microsoft, CMU, IIT.
We are backed by world-class investors and leaders like Jeff Dean, Neotribe VC, PearVC, Together Fund and Zapier Fund.

Requirements

• Has real research experience — can define a problem, not just execute a known one
• Has trained models before (not just fine-tuned APIs) and is fluent in Python
• Master's or higher in ML or a related field
• Energized by open-ended problems and ambiguity
• Wants to publish, not just ship
• Takes ownership without needing to be guided
• Genuinely wants a startup over big tech — speed and ambiguity as defaults, not exceptions

Nice To Haves

• Prior founder or founding-engineer experience
• Strong product taste
• Worked on healthcare datasets before
• Built LLM-powered products before
• Ambitions to start your own company someday — we'll support that path

Responsibilities

• Work with real, proprietary clinical data from hospital and clinic partners to surface insights that shape model and product direction
• Build clinical reasoning models that improve physician and clinic workflows
• Design and publish benchmarks that expose where current LLMs fall short on real clinical reasoning
• Evaluate computer-use models on real-world tasks
• Own the training and evaluation pipeline end to end
• Take open-ended problems from question to working model, with minimal predefined structure
• Write up findings as technical reports and papers

Benefits

• Direct, daily work with the founders, plus exposure to board and investor conversations
• Real ownership of technical direction, with scope that grows as the company does
• Full compute and data to do the work properly
• Competitive salary and meaningful equity
• Visa sponsorship available

What This Job Offers

• Job Type: Full-time
• Career Level: Intern