Radar Algorithm Engineer

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, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability.

This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function.

As a Senior Radar Algorithm Engineer, you will develop and deploy advanced algorithms for air-to-air radar systems operating in contested, modern electronic warfare environments. This role goes beyond theory - you will own the full lifecycle from algorithm design through production-ready implementation, validation, and integration into real hardware systems.

• Own end-to-end development of air-to-air radar algorithms—from concept through production- ensuring performance, affordability, testability, and scalability
• Design, implement, and validate radar mode logic in Python or Rust, delivering robust performance in modern electronic warfare environments
• Develop and execute verification and validation plans across simulation, chamber testing, captive flight, and live-fire scenarios, including calibration considerations
• Operate within a disciplined software engineering environment, leveraging version control, code reviews, CI/CD, and testing frameworks

• Bachelor's or Master's degree in Electrical Engineering, Computer Science, Physics, or a related technical field
• Direct experience with air-to-air radar systems and associated algorithms
• Strong background in signal processing, detection, tracking, and radar modes
• Proficiency in Python and/or Rust, with experience writing production-quality code
• Ability to operate in a disciplined software engineering environment (e.g., Git, code reviews, testing, issue tracking tools like Jira)

• Experience working in electronic warfare or contested RF environments
• Background in taking algorithms from concept through deployment on hardware systems
• Familiarity with radar system calibration, integration, and test across multiple environments
• Experience building scalable, maintainable software architectures for real-time systems

Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements.

You will be notified if and when such requirements apply.

Castelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability,…