AI Research Engineer at BluePill AI

This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers. She will pick the best candidates from Jack's network. The next step is to speak to Jack. Job Title AI Research Engineer Salary Not Disclosed Company Description BluePill AI is a $6M seed-funded Seattle-based startup backed by Ubiquity Ventures and Pioneer Square Labs, building digital twins of real audiences for automated market research. Job Description You will own the end-to-end model training pipeline at BluePill AI, moving beyond simple API integrations to work directly within model weights. You'll fine-tune and align LLMs to create "AI consumers"—simulated audiences that react with 93% accuracy compared to human panels, revolutionizing how brands test products and messaging in minutes. Location Remote Why this role is remarkable • Work directly on the weights of foundational models using cutting-edge techniques like LoRA and RLHF rather than building wrappers around existing APIs. • Join a high-traction, $6M seed-funded startup backed by top investors like Pioneer Square Labs and Flying Fish Partners, with a product already hitting 93% human accuracy. • Shape the future of market research by building "AI consumers" in a small, elite team led by an ex-Amazon AI founder from Cornell. What You Will Do • Own the complete end-to-end model training and alignment pipeline for BluePill AI's proprietary audience simulation engine. • Implement and iterate on advanced post-training techniques including SFT, DPO, and PEFT to align model behavior with complex human audience data. • Build and scale distributed training infrastructure to optimize the performance and deployment of foundational models across the platform. The ideal candidate • Deep experience building foundational models or fine-tuning LLMs using advanced methodologies like RLHF and LoRA. • Strong background in machine learning research with the ability to implement novel approaches from academic papers into production systems. • Proven track record of optimizing distributed training infrastructure and working effectively in a fast-paced, high-ownership startup environment. Who are Jack & Jill? Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support. And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate. How does this work? • Jack's an AI agent for job searching and career coaching. He works for you. • Jill is the AI recruiter working for the company. She recruits from Jack's network. • If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives. We never post fake jobs This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network. Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it. Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.