Castelion · 1 day ago
Electrical Engineer - Hardware & Avionics
Los Angeles, CA
Full-time
Onsite
Entry, Mid LevelCastelion is redefining defense development through rapid iteration and modern commercial manufacturing. They are hiring Electrical Engineers to support board-level design, bring-up, and testing across their avionics organization, focusing on schematic and PCB design, board bring-up, and lab testing.
AerospaceGovernmentManufacturingMilitaryNational Security
No H1B
U.S. Citizen OnlyHiring Manager
Julee Y.
Responsibilities
Design and develop board‑level electrical hardware including schematic capture, PCB layout, and component selection
Perform board bring‑up, validation, and debugging in the lab
Test reference boards and early prototypes using standard lab equipment
Support troubleshooting and root‑cause analysis of hardware issues
Work with avionics, test, and manufacturing teams to iterate designs quickly
Document designs, test results, and engineering changes clearly
Qualification
Required
Bachelor's degree in electrical engineering or related field
Experience with PCB design tools (Altium preferred)
Hands‑on experience with oscilloscopes, logic analyzers, and power supplies
Strong understanding of core EE principles such as analog/digital circuits, power, signal integrity basics
Comfortable working in a fast‑paced, highly collaborative environment
Preferred
Experience taking a PCB from concept through bring‑up and test
Exposure to embedded systems or firmware interaction
Familiarity with aerospace, automotive, robotics, or other high‑reliability hardware
Basic scripting or programming experience (Python, C/C++)
Benefits
Long-term stock incentives
Comprehensive medical, vision, and dental insurance
Four weeks of paid time off per year
Company
Castelion
Castelion is a defense tech company that applies modern hardware development and manufacturing processes to national security challenges.
Founded in 2022
51-200 employees
Funding
Current Stage
Growth StageTotal Funding
$469.61MKey Investors
Lightspeed Venture PartnersSilicon Valley BankAndreessen Horowitz
2025-12-05Series B· $350M
2025-01-29Series A· $70M
2025-01-29Debt Financing· $30M
Leadership Team
Bryon Hargis
Founder // CEO
Andrew Kreitz
Co-Founder and CFO
Recent News
alleywatch.com
2026-01-23
Company data provided by crunchbase