Co-Founder & CTO

About the Role

Join an early-stage AI creative technology company as an equal, full-time co-founder and CTO. You will set the technical and research direction and build a platform that learns to evaluate and improve creative work using real-world feedback.

What You'll Do

• Own the technical and research strategy, evolving existing workflows into a proprietary training and evaluation platform.

• Build data infrastructure connecting creative briefs, submissions, generation traces, decisions, critiques, and campaign outcomes.

• Develop systems to evaluate, rank, critique, generate, and improve creative work.

• Design allocation policies that direct campaign budgets while informing data collection.

• Make technical decisions about frontier models, fine-tuning, post-training, reinforcement learning, and original research.

• Build production infrastructure for creator workflows, campaigns, experimentation, training, and inference.

• Set standards for data quality, consent, privacy, measurement, and model evaluation.

• Recruit and lead the initial engineering and research team, and work directly with creators and brands.

What We're Looking For

• Substantial hands-on experience in research or post-training at a leading AI lab or comparable research organization, including training agents or working with reinforcement learning.

• Practical experience building preference or reward models, including RLHF, ranking subjective outputs, or evaluation systems.

• Experience shipping products or features used by people, plus building production ML infrastructure.

• Background in causal inference on observational data, including selection bias, off-policy or counterfactual evaluation, and adaptive experimentation.

• Experience with ads, marketplace, recommender, or ranking systems tied to business outcomes, and learning from noisy, delayed, or subjective feedback.

• Experience owning model, evaluation, or infrastructure programs end to end and recruiting and leading technical teams.

• Production experience with bandits or online experimentation, multimodal ML, agents, planning, or latent-variable modeling is valuable.

• Willingness to commit full-time to an early-stage co-founder role, with significant responsibility and uncertainty.

Compensation & Benefits

Equity is approximately 28% as an equal co-founder. Cash compensation is discussed based on circumstances and fit. Visa sponsorship is not available.

Location

On-site in San Francisco, California, United States.