CyberAgent is hiring a Senior Senior AI Developer — ads & media intelligence on the AI Lab team (Hybrid · Tokyo, Japan). This is a hands-on role in LLM & generative AI—not a generic “AI enthusiast” post.
You will own LLM features, retrieval, agents, and evaluation end to end: problem framing, offline evaluation, safe rollout, and iteration from production signals. Success is measured with clear metrics (quality, latency, cost, or business KPIs)—not slide decks alone.
**CyberAgent** is a major Japanese **internet media and ad-tech** group — Abema, games, and ad platforms — with **AI Lab** in **Shibuya, Tokyo**.
Senior AI Developer (hybrid Tokyo): **ad targeting**, **content understanding**, and **generative tools** for media products.
About CyberAgent
- Tokyo Stock Exchange-listed; Shibuya Scramble Square campus.
- AI applied across advertising, streaming, and gaming divisions.
- English-friendly teams with Japanese business context.
What you will do
- Train models for ad relevance and user segmentation.
- Build Japanese NLP pipelines for content moderation and tagging.
- Prototype generative features with offline quality evals.
Stack & environment
- Python, PyTorch, GCP, Kubernetes.
- Hybrid Shibuya.
What we look for
- Ads, media, or NLP ML; Japanese collaboration a plus.
- Eligible to work in Japan.