Director of Flight Software

About Castelion

Castelion is bringing a new approach to defense development and production : one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We’re designing, building, and testing next‑generation long‑range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Head of Flight Software

As the Head of Flight Software Engineering, you will lead the development of innovative flight software for Castelion's advanced missile systems, playing a critical role in achieving our mission of peace through deterrence. This role demands a highly motivated individual with deep expertise in flight software development, a passion for mentoring teams, and a commitment to delivering robust, mission‑critical systems. You will oversee all aspects of flight software design, development, integration, and testing, ensuring that Castelion's cutting‑edge systems perform reliably under the most demanding conditions.

Responsibilities

• Build, lead and mentor a team of flight software engineers, fostering a collaborative, high‑performance culture.
• Define and execute the software architecture, design, and implementation strategy for missile flight software systems.
• Collaborate closely with guidance, navigation, and control (GNC) teams, hardware engineers, and systems engineers to ensure seamless software‑hardware integration.
• Develop and maintain robust software development, continuous integration, and verification processes, tools, and standards to ensure high reliability and scalability.
• Oversee the development of software for real‑time embedded systems, focusing on performance, safety, and mission‑critical functionality.
• Lead testing efforts, including simulation, hardware‑in‑the‑loop (HIL), and flight tests, to validate system performance.
• Maintain an understanding of evolving software and hardware technologies, integrating advancements where applicable.
• Ensure compliance with industry standards, security protocols, and customer requirements.

Basic Qualifications

Preferred Skills and Experience

Leadership Qualities

ITAR Requirements

Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin / ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

All employees are granted long‑term stock incentives as part of their employment at Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers four weeks of paid time off per year.

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