CesiumAstro · 3 hours ago
Senior Power Electronics Engineer I
Denver Metropolitan Area
Full-time
Onsite
Mid, Senior Level
$120K/yr - $174K/yr
4+ years expCesiumAstro is a developer and pioneer of innovative communication systems for satellites, UAVs, and other airborne platforms. They are seeking a Senior Power Electronics Engineer I to contribute to the development of next-generation power electronics hardware, overseeing the entire lifecycle from architecture definition to testing and manufacturing support.
AerospaceDronesSatellite CommunicationSpace Travel
No H1B
U.S. Citizen Only
Responsibilities
Define electrical power system architecture, and derive power subsystem requirements
Design DC-DC power converters, power supplies, and power distribution systems ranging from a few watts to more than 20 kW of power in the 0.8 V to 400 V range
Design single-phase and three-phase AC-DC power supplies and power distribution systems ranging from a few kilowatts to more than 20 kW
Perform comprehensive analysis of AC-DC and DC-DC power supplies including worst-case circuit analysis (WCA), stress analysis, small signal modeling analysis, failure modes and effects analysis (FMEA), reliability analysis, and power integrity analysis
Develop design verification test plans, requirement compliance matrices, system integration and qualification test plans, and production acceptance test plans for power converters and power supplies
Perform board bring-up and design verification testing of analog and power electronics circuits
Perform system integration, qualification testing, and production release of power supply modules and power systems
Qualification
Required
Bachelor of Science (BS) degree or higher in Electrical Engineering from an accredited university
Minimum of 4 years of experience designing analog and power electronics
Experience testing single-phase and three-phase off-line AC-DC power supplies, and DC-DC power supplies for industrial, airborne, or military systems
Knowledge of control theory and stability of power electronics, including experience characterizing control loops and impedances in the laboratory
Experience designing power filters for low noise outputs and for power line electromagnetic compatibility (EMC)
Hands-on experience with testing and troubleshooting electronics and power converters using laboratory instruments such as oscilloscopes, impedance analyzers, spectrum analyzers, electronic loads, and signal generators
Experience with analysis and simulation tools such as SPICE, LTSPICE, SIMetrix/SIMPLIS, PLECS, Simulink, MATLAB, MathCAD, ANSYS Q3D and SiWave, or HyperLynx
Excellent written and verbal communication skills
Preferred
Experience designing high-reliability power supplies for automotive, industrial or defense applications
Experience with power stage design and testing of common DC-DC power converter topologies (e.g. discrete linear regulators, Buck, Boost, Buck-boost, Flyback)
Experience with voltage mode control and peak current mode control modeling for DC-DC converters
Experience generating statements of work and requirements for external vendors, vendor selection, and vendor management for power supply and power system rack developments
Experience developing design verification test plans, requirement compliance matrices, system integration and qualification test plans, and production acceptance test plans
Experience performing worst-case circuit analysis (WCA), stress analysis, failure modes and effects analysis (FMEA), and reliability analysis for power supplies
Experience with electronics schematic capture and printed circuit board (PCB) layout tools such as Altium, OrCAD, Allegro or Xpedition
Experience running board-level power integrity simulation using tools such as Ansys SiWave, or HyperLynx
Programming skills to support hardware test and data processing (Python, MATLAB, etc.)
Benefits
Company stock options
Health
Dental
Vision
HSA
FSA
Life
Disability
Retirement plans
Company
CesiumAstro
CesiumAstro provides out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space or airborne platforms.
201-500 employees
Funding
Current Stage
Growth StageTotal Funding
$655.24MKey Investors
Trousdale VenturesExport-Import Bank of the United StatesAirbus Ventures,Forever Ventures
2026-02-02Series C· $270M
2026-01-15Debt Financing· $200M
2024-06-18Series B· $65M
Recent News
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2026-02-04
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