- Forward Deployed Engineer, Post-Training — Together AI, San Francisco — Employer vacancy; observed 26 October 2026; checked 26 October 2026.
- Machine Learning Research Scientist, Evaluations — Scale AI — Employer vacancy; observed 26 October 2026; checked 26 October 2026.
- Software Engineer — Training Product — Baseten — Employer vacancy; observed 26 October 2026; checked 26 October 2026.
- AI Field Engineer — Strategic Partnerships — Fireworks — Employer vacancy; observed 26 October 2026; checked 26 October 2026.
- A Field Guide to Rapidly Improving AI Products — Hamel Husain — Practitioner account; checked 26 October 2026.
- Demystifying evals for AI agents — Anthropic, 9 January 2026 — Primary engineering account; checked 26 October 2026.
Evidence boundary: This is desk research and a proposed decision method, not a test of the buyer’s model or an endorsement. Published findings, supplier descriptions and proposed actions are distinguished in the text. Missing private data, quotes and contract terms remain unknown.