Senior Agentic Planning Engineer

About LightSpeed LightSpeed Build Technologies is revolutionizing the construction industry through AI-powered robotics. Our flagship systems—BRUTE for automated wall panel manufacturing and DEX for on-site collaborative construction—are addressing the global housing crisis by delivering unprecedented speed, precision, and affordability in homebuilding. Position Overview As Senior Agentic Planning Engineer, you will own how LightSpeed's robots decide what to do next. Every robot action is one of two primitives, move or actuate. You will build the planner that reasons over a goal, sequences those primitives, chooses classical control or a learned policy for each step, and recovers when a step fails. Planning doesn't stop after the first step. Your planner keeps deciding as the robot works, using live data from the sensors and the result of every action. When it works, a robot finishes a whole panel or room on its own, with every decision it makes. What you'll work on Primitives and contracts Define primitives and their contract: inputs, preconditions, success checks and failure codes Define the interface between the planner and the executor: step request, choice of classical or poli