Senior IR Seeker Systems Engineer

Job description

Why Castelion, Why Now Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts. This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact. Senior IR Seeker Systems Engineer The Senior IR Seeker Systems Engineer will lead the architecture and development of advanced infrared seeker systems. This role owns the seeker from initial concept through production, balancing performance, cost, manufacturability, and testability to deliver step-function improvements over existing systems. Responsibilities: - Lead end-to-end development of IR seeker architecture (hardware & software), establishing the baseline for next-generation systems - Drive rigorous trade studies across performance, cost, size, and risk, including acquisition/tracking models and detailed error budgets - Evaluate and optimize seeker performance across thermal environments (MWIR/LW...