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Senior EMC/EMI Engineer

CesiumAstro - Westminster, CO, United States - In-office - posted 2026-10-12

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CesiumAstro is seeking a Senior EMI/EMC Engineer to join its aerospace and defense engineering team in Westminster, CO. The company develops advanced communication systems for satellites, UAVs, launch vehicles, and airborne platforms, with a focus on active phased array antennas (AESA) for both terrestrial and airborne applications. In this role, you will be responsible for ensuring that phased array communication systems meet all electromagnetic interference and compatibility (EMI/EMC) requirements and standards. You will work across design, test, and systems engineering teams to develop and implement EMI/EMC control strategies for products operating in harsh environments. Key responsibilities include: - Developing and implementing EMI/EMC control plans, analyzing designs to identify potential interference issues and recommend mitigations - Providing technical guidance to design teams on EMI/EMC considerations and regulatory compliance - Planning, coordinating, and conducting EMI/EMC testing for electronics modules and phased array systems per standards such as MIL-STD-461, DO-160, and ECSS - Using simulation tools (CST Studio Suite, ANSYS HFSS) to model electromagnetic fields and predict interference at component, subsystem, and system levels - Ensuring products meet regulatory requirements and industry standards, including documentation and certification - Investigating and resolving EMI/EMC issues through root cause analysis and corrective action development - Preparing comprehensive technical reports, compliance matrices, and design guidelines - Leading initiatives to improve EMI/EMC design practices and testing methodologies - Mentoring and training junior engineers on EMI/EMC best practices Requirements: - Bachelor's or Master's degree in Electrical Engineering, Physics, or related field - Minimum 5 years of EMI/EMC engineering experience, preferably in aerospace and defense - Deep understanding of EMI/EMC principles, standards, and regulations (MIL-STD-461, DO-160, ECSS) - Experience with EMI/EMC test equipment (spectrum analyzers, signal generators, antennas) - Proficiency in electromagnetic simulation software (CST Studio Suite, ANSYS HFSS, FEKO) - Knowledge of circuit and system-level design for EMI/EMC mitigation (shielding, filtering, grounding) - Strong analytical, problem-solving, and troubleshooting skills - Excellent communication and presentation abilities - Ability to work independently and collaboratively in fast-paced, multidisciplinary environments Preferred experience: - EMI/EMC compliance for communication systems, particularly phased arrays - Strong EMI/EMC test planning and execution experience - Certified EMC Engineer certification - Familiarity with systems engineering practices and tools (Jama, DOORS) Note: Applicant must be a U.S. citizen, lawful permanent resident, conditional resident, asylee, or refugee, or eligible to obtain required authorizations from the U.S. Department of State due to space technology export regulations.

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