Sr./Principal Electrical Engineer: Spacecraft Power System (TS/SCI)

    • Dulles, VA

Since the dawn of the space age, Northrop Grumman has put innovative products and ideas into orbit on the Moon, and beyond - systems engineering, spacecraft manufacturing, precision sensors, space instrument design, ground stations development, revolutionary launch vehicles, and more. Help shape the future of Space exploration at Northrop Grumman!

Join an organization working to put the first woman and the next man on the moon in 2024 and develop the next steps toward human space missions to Mars through our human habitat in cislunar space. At Northrop Grumman, we are launching careers into orbit.

Job Description:
This is an exciting opportunity to work on programs for cislunar or manned spaceflight in support of moon landing. Our engineers develop mathematical models and simulations for spacecraft electrical power system to support analyses required for power electronics hardware design and control software development, verification and troubleshooting.

Specific Responsibilities:
In this role you will:
• Define the technical requirements and architecture for the simulation system
• Develop, validate, and maintain simulation models of electrical power system component including solar array, lithium ion battery, electric motor and controller, and power electronics
• Use simulation to support analyses (transient response, stability, fault coordination) and trade studies
• Support defining requirements for hardware component, control software, and interfaces
• Use simulation to assess potential issues before physical parts are available for testing
• Develop interfaces for processor-in-the-loop and hardware-in-the-loop simulators
• Prepare test plans, test procedures, test cases, conduct unit to system level testing, and write test reports
• Support development of control algorithms for power electronic systems

This position can be filled at the Principal Electrical Engineer level or Senior Principal Electrical Engineer level depending on education and experience.



Basic Requirements for Principal Electrical Engineer:
• Must have U.S. Citizenship with a current or active Top Secret/SCI level clearance
• Bachelors of Science Degree in a STEM field (preferably Electrical Engineering)
• At least 5 years of experience (ideally within Electrical Engineering/Power Electronics) or 3 yrs with a Masters Degree, or PhD

Basic Requirements for Senior Principal Electrical Engineer:
• Must have U.S. Citizenship with a current or active Top Secret/SCI level clearance
• Bachelors of Science Degree in a STEM field (preferably Electrical Engineering)
• At least 9 years of experience (ideally within Electrical Engineering/Power Electronics) or 7 yrs with a Masters or 4 yrs with a PhD

Preferred Qualifications:
• Masters of Science degree in Electrical Engineering
• Hands-on experience with power semiconductors and switched mode power conversion and their modeling, simulation and testing
• Knowledge of fundamental power converter topologies
• Strong understanding of switching waveforms, semi-conductor losses and experience with loss modeling
• Solid understanding of the theory and application of magnetics in inductors and transformers for power conversion
• Expertise in one of more of the following areas: solar based power system, lithium ion battery, electric propulsion system
• Experience with power quality and EMI/EMC testing
• Familiarity with functional specification, state machines, failure mode effect and criticality analysis and fault tree analysis
• Strong model-based design and/or test background (e.g. Simulink, Simscape Power Systems, PSIM, SPICE, AMESim, Saber)
• Development/operations of hardware-in-the-loop simulators, conducting testing and troubleshooting of hardware and software interfaces
• Prior experience in any of the following areas is a plus.

• Using Mathworks Simulink/Stateflow/Simscape and/or Saber.
• Experience with MathWorks real time simulation operating system.
• Experience with micro-grid, grid-connected power electronics, grid-connected batteries.
• Working experience in current model control, compensation design and loop gain measurements.
• Developing torque control techniques such as field oriented control, slip-based control, direct torque control {HLS}
• Experience with various PWM schemes such as space vector, discontinuous, and sinusoidal modulation {HLS}

Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO/AA and Pay Transparency statement, please visit U.S. Citizenship is required for most positions.

Back to top