Assail is a company focused on autonomous offensive security, developing a platform that identifies vulnerabilities in production systems. They are seeking a Senior AI Researcher to advance their core models and lead original research in offensive security, collaborating closely with the VP of AI Engineering and the CEO.
Responsibilities
- Drive original research on offensive security agents — reasoning, planning, tool use, and autonomous long-horizon operation
- Advance Dagger's post-training pipeline: supervised fine-tuning, RL from verifier signals, LoRA adaptation, and evaluation against adversarial benchmarks
- Extend Javelin's co-evolutionary self-training architecture: curriculum design, self-play dynamics, and reward modeling for security-specific outcomes
- Design and execute experiments end-to-end, from hypothesis through writeup
- Build internal evaluation harnesses that measure capability rigorously, where no public benchmark exists
- Translate research into production handoffs to AI Engineering — model cards, deployment notes, and known failure modes
- Contribute to Assail's external research voice through papers, talks, responsible disclosures, and technical writing
- Collaborate with engineering teammates on research methodology and experimental design