Staff Electrical Engineer

About the role

We are hiring experienced Electrical Engineers to specialize in high-speed digital design, flight computer architecture, and advanced avionics hardware development across our avionics organization. This role is ideal for engineers with deep EE fundamentals and hands-on ownership experience designing complex embedded hardware for mission-critical systems. Engineers in this role focus on flight computer architecture, high-speed digital board design, system bring-up, and hardware validation across real flight hardware. The ideal candidate has experience owning complex board designs from architecture through integration and thrives in fast-paced hardware development environments.

Responsibilities

• Design and develop advanced board-level electrical hardware including schematic capture, PCB layout oversight, component selection, and interface definition
• Own high-speed digital and embedded flight computer architectures including processors, memory systems, and board-level integration
• Perform board bring-up, validation, debugging, and root-cause analysis in the lab
• Test reference boards and early prototypes using standard lab equipment
• Drive signal integrity, power integrity, and hardware reliability considerations throughout the design lifecycle
• Work with avionics, embedded software, test, and manufacturing teams to iterate designs quickly
• Support hardware/software integration and troubleshooting across avionics platforms
• Document designs, test results, and engineering changes clearly

Requirements

• Bachelor’s degree in electrical engineering or related field
• Strong experience with complex digital or mixed-signal hardware design
• Experience with high-speed digital systems, embedded processors, memory interfaces, and board-level architecture
• Experience with PCB design tools (Altium preferred)
• Hands-on experience with oscilloscopes, logic analyzers, and power supplies
• Strong understanding of core EE principles including digital systems, signal integrity, power distribution, and hardware debugging
• Comfortable working in a fast-paced, highly collaborative environment

Preferred Qualifications

• Experience owning flight computer, avionics, or embedded compute hardware architectures
• Experience taking complex PCBAs from concept through bring-up, validation, and integration
• Exposure to embedded systems, firmware, or FPGA interaction
• Familiarity with aerospace, automotive, robotics, defense, or other high-reliability hardware environments
• Familiarity with interfaces such as Ethernet, SPI, I2C, UART, CAN, PCIe, or DDR memory systems
• Basic scripting or programming experience (Python, C/C++)

Leadership Qualities

• Bias to Action and Creative Problem Solving: Desire and experience questioning assumptions in ways that lead to breakthrough ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. The ability to personally resolve minor issues in development without requiring significant support.
• High Commitment, High Initiative: A genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast-paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.
• Clear Communicator: Proactively communicates blockers. Trusted in previous roles to be the voice of the company with regulators, suppliers, gatekeepers, and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs, and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

Benefits

• Long-term stock incentives as part of employment
• Comprehensive medical, vision, and dental insurance
• Four weeks of paid time off per year

ITAR Requirements

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.