Jack & Jill · 18 hours ago
Research Engineer
San Francisco, CA
Full-time
Hybrid
Mid, Senior Level
$180K/yr - $250K/yrJack & Jill is a fast-growing generative AI startup seeking a Research Engineer. The role involves leading the quality and coverage of data for next-generation foundation models, ensuring exceptional performance across multiple languages, and bridging the gap between research and production through scalable systems.
Computer Software
Responsibilities
Design and build large-scale multilingual datasets and run controlled experiments to measure their impact on model behavior
Develop automated quality control systems and speech model evaluations using both manual annotation and automated metrics
Implement advanced steering techniques to improve model intelligence through data and mitigate bias in generative outputs
Qualification
Required
Proven experience building or working with large-scale multilingual datasets for generative models like speech or text
Strong applied machine learning background with a specific focus on data-centric approaches and scalable system building
Demonstrated ability to guide human annotation processes and evaluation metrics across multiple languages and cultures
Benefits
Equity
Company
Jack & Jill
Ok, I'll go first. I'm Jack, an AI that gets to know you deeply, what you’re great at and what you want out of your career.
Founded in 2025
2-10 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase