Staff Power Electronics Engineer

CesiumAstro•Westminster, CO

About The Position

CesiumAstro is seeking a Staff Power Electronics Engineer to support the Skylark product line, which rapidly designs, builds, and tests active phased array antennas for terrestrial and airborne applications. Programs include high-power ground terminals for missile defense and connectivity solutions for commercial airlines and helicopters. The role leads power-system architecture and requirements development, designs power converters and distribution systems, and oversees analysis, verification, integration, qualification, and production release. The engineer will also mentor junior engineers and lead a small team to drive project execution.

Requirements

Bachelor of Science degree or higher in Electrical Engineering from an accredited university.
At least 8 years of experience designing analog and power electronics.
Experience with electrical power systems and subsystems, including power architecture and requirements, SWAP-C trade studies, power-converter topology selection, and power-management and control blocks.
Experience designing, testing, and qualifying 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 power-electronics stability, including laboratory characterization of control loops and impedances.
Experience designing power filters for low-noise outputs and power-line electromagnetic compatibility.
Experience developing design-verification, compliance, integration, qualification, and production-acceptance test plans.
Experience performing worst-case circuit analysis, stress analysis, failure modes and effects analysis, and reliability analysis for power supplies.
Extensive hands-on electronics and power-converter testing and troubleshooting 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.
Experience with isolation and grounding, failure-mode effects analysis and fault-tolerant design, and thermal management of power electronics.
Experience designing and testing power-electronics units to meet standards and requirements in automotive, industrial, aircraft, or military markets, such as FCC, CISPR, UL safety standards, ECSS, NASA, or MIL standards.
Excellent written and verbal communication skills.

Nice To Haves

Experience designing and testing isolated and non-isolated DC-DC converters, such as discrete linear regulators, buck, boost, buck-boost, flyback, and forward converters.
Experience designing or specifying custom power magnetics for power supplies and power-line filters.
Knowledge of power-stage design and control methods for power-factor-correction converters and active rectifiers.
Experience generating statements of work and requirements for external vendors, selecting vendors, and managing vendors for power-supply and power-system rack development.
Experience with schematic-capture and PCB-layout tools such as Altium, OrCAD, Allegro, or Xpedition.
Experience running board-level power-integrity simulations using tools such as Ansys SiWave or HyperLynx.
Knowledge of soft-switching and resonant power-converter topologies, such as LLC, CLLC, series resonant, phase-shifted full bridge, and dual active bridge.
Programming skills for hardware testing and data processing, such as Python or MATLAB.

Responsibilities

Lead development of power-system architectures and derive power-subsystem requirements.
Design DC-DC converters, power supplies, and distribution systems from 0.8 V to 400 V and from a few watts to more than 20 kW.
Design single-phase and three-phase AC-DC power supplies and 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, stress analysis, small-signal modeling, failure modes and effects analysis, 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.
Lead board bring-up and design-verification testing of analog and power-electronics circuits.
Lead system integration, qualification campaigns, and production release of power-supply modules and systems.
Mentor junior engineers and foster knowledge sharing.
Lead a small team of power-electronics engineers to drive project execution.