Embedded Software Engineer (All Levels)

Castelion is innovating defense development and production, focusing on modern manufacturing strategies for next generation long range strike weapons systems. The Embedded Software Engineer will create, develop, and test software for flight systems, collaborating with teams across software and hardware domains to ensure mission success.

What you'll do:

• Design and implement reliable autonomous software systems, along with the simulations required to validate their precision and dependability
• Manage the entire software development process, from initial design, prototyping, and testing, to final integration and deployment for mission-critical applications
• Evaluate test outcomes and troubleshoot issues necessitating detailed investigations, including hands-on integration and debugging of hardware/software systems. Develop tools to facilitate testing across various environments: virtualized hardware, real hardware-in-the-loop, and vehicle-in-the-loop testing
• Partner with multidisciplinary engineering teams to brainstorm, design, and develop next-generation hypersonic missile capabilities, including advanced guidance algorithms and integrated seeker image processing
• Lead major projects that propel Castelion's mission forward, ensuring alignment with overall objectives and occasionally traveling to launch and customer sites for testing and operations
• Continuously improve software standards and best practices within the software team, fostering an environment of ongoing improvement and innovation

What they're looking for:

• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Mathematics, or a related STEM field, or equivalent practical experience
• Open to candidates across all experience levels, from early-career engineers to senior technical contributors. Professional experience, internships, research, open-source contributions, or other hands-on technical work will be considered
• Experience with systems programming in languages such as C++, Python, or Rust, and familiarity with Linux-based development environments. Experience may include work with low-level systems such as Linux kernel development, hardware interfaces, or driver development (e.g., UART, I2C, or similar peripherals)
• To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State
• Proven proficiency in C++, Rust, or similar systems programming languages
• Practical experience with real-time embedded systems or distributed computing environments in Linux-based systems, including developing high-quality Linux-based C++ software for common processors and microcontrollers (e.g., PowerPC, x86, ARM)
• Proficiency in Linux, including Bash shell scripting, network troubleshooting, and performance analysis (strace, ftrace, etc.), with strong skills in debugging, performance optimization, and unit testing
• Comprehensive understanding of computer architecture and networking protocols (TCP, UDP, etc.)
• Innovative problem-solving approach using first-principles thinking, including developing prototypes to validate key design concepts and quantify technical constraints

Benefits:

• 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
• The company offers four weeks of paid time off per year