Senior AI Engineer

Alice's RL Environments team builds adversarial environments that the world's leading AI labs use to test and train their most capable agents. Each environment is a working replica of a real system with an attack planted inside it. A verifier decides whether the agent held up.

The environments run on AgenticVerse, our platform for building and running RL environments at scale. A large and fast-growing community of researchers works on it every day.

We're looking for a Senior AI Engineer to own those environments and the evaluation that decides which tasks are good enough to train a frontier model.

What you'll do

RL environments

• Build RL environments end to end: the replica systems, the planted attack, and the verifier that grades the run
• Own environment and verifier design for tool-use, web, and computer-use agents
• Make environments airtight: sandboxed, free of eval-awareness cues, and closed to