CareerPlan

Co-Founder & CTO

San FranciscoFull-time2026-11-08 → 2026-11-11
On-siteNo visa sponsorship

Core

Build a training and evaluation platform for creative AI, owning research strategy, product development, and team building for an early-stage AI marketing technology company.

Role type

Co-Founder & CTO (hands-on IC + strategy)

Builds

Proprietary training and evaluation platform for creative AI

Domain

AI marketing technology, creative AI, reinforcement learning

Deliverable

production ML models

Required skills

hands-on research or post-training experience, building preference or reward models, RLHF, ranking, or evaluation systems, practical reinforcement learning or agent-training experience, production ML infrastructure experience, shipping products or features end to end, causal inference with observational data, experience with noisy/delayed/subjective outcomes, strong technical recruiting and team leadership

Preferred skills

Bandits, sequential allocation, multimodal AI, planning, latent-variable modeling

Technologies

frontier models, fine-tuning, post-training, reinforcement learning

Responsibilities

Set technical and research strategy, build data infrastructure connecting briefs/submissions/outcomes, develop systems to evaluate/rank/critique/generate creative work, design allocation policies for campaign budgets, make decisions about frontier models and original research, build reliable infrastructure for creator workflows, establish data quality and privacy standards, recruit and lead initial engineering and research team

Seniority

Co-Founder, full-time commitment with uncertainty