Staff Electrical Engineer - Flight Computers & High-Speed Digital

About CastelionCastelion is redefining defense development through rapid iteration, aggressive testing, and modern commercial manufacturing at scale. We design, build, and test next-generation long-range strike weapon systems to give the United States and its Allies a decisive advantage and deter future conflicts.Staff Electrical Engineer - Flight Computers & High-Speed DigitalWe 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.ResponsibilitiesDesign and develop advanced board-level electrical hardware including schematic capture, PCB layout oversight, component selection, and interface definitionOwn high-speed digital and embedded flight computer architectures including processors, memory systems, and board-level integrationPerform board bring-up, validation, debugging, and root-cause analysis in the labTest reference boards and early prototypes using standard lab equipmentDrive signal integrity, power integrity, and hardware reliability considerations throughout the design lifecycleWork with avionics, embedded software, test, and manufacturing teams to iterate designs quicklySupport hardware/software integration and troubleshooting across avionics platformsDocument designs, test results, and engineering changes clearlyBasic QualificationsBachelor’s degree in electrical engineering or related fieldStrong experience with complex digital or mixed-signal hardware designExperience with high-speed digital systems, embedded processors, memory interfaces, and board-level architectureExperience with PCB design tools (Altium preferred)Hands-on experience with oscilloscopes, logic analyzers, and power suppliesStrong understanding of core EE principles including digital systems, signal integrity, power distribution, and hardware debuggingComfortable working in a fast-paced, highly collaborative environmentPreferred QualificationsExperience owning flight computer, avionics, or embedded compute hardware architecturesExperience taking complex PCBAs from concept through bring-up, validation, and integrationExposure to embedded systems, firmware, or FPGA interactionFamiliarity with aerospace, automotive, robotics, defense, or other high-reliability hardware environmentsFamiliarity with interfaces such as Ethernet, SPI, I2C, UART, CAN, PCIe, or DDR memory systemsBasic scripting or programming experience (Python, C/C++)Leadership QualitiesBias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through 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 successful candidate will have 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 voice of company with regulators, suppliers, gate keepers 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.ITAR RequirementsTo 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.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.