Member of Technical Staff [Research]
As a Member of Technical Staff (Research), you will be responsible for designing and building the post-training stack to enable continuous learning for customer models. This role involves owning end-to-end experiments across data, training, and evaluation, working with founders and design partners to make foundational technical and product decisions.
As a Member of Technical Staff (Research) at Trajectory, you will design and build the post‑training stack that lets our customers’ models continually learn from real production workflows. You will own end‑to‑end experiments across data, training, and evaluation: shaping telemetry into learnable signals, training and serving custom LLMs and agents, and designing novel algorithms. You’ll work directly with the founders and design partners, make foundational technical and product decisions, and help define both the culture and architecture of a company whose core mission is to enable continually learning intelligence.
Posted May 31, 2026