Sr. Principal Research Scienti

Location: United States-Utah-Corinne
US Citizenship Required for this Position: Yes
Relocation Assistance: Relocation assistance may be available
Clearance Type: None
Shift: 1st Shift
Travel: Yes, 10 % of the Time

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people?s lives around the world today, and for generations to come. Our pioneering and inventive spirit has enabled us to be at the forefront of many technological advancements in our nation?s history - from the first flight across the Atlantic Ocean, to stealth bombers, to landing on the moon. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future, and have fun along the way. Our culture thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work ? and we have an insatiable drive to do what others think is impossible. Our employees are not only part of history, they?re making history.

Northrop Grumman Innovation Systems designs, builds and delivers space, defense and aviation-related systems to customers around the world. Our main products include launch vehicles and related propulsion systems; missile products, subsystems and defense electronics; precision weapons, armament systems and ammunition; satellites and associated space components and services; and advanced aerospace structures.

We are currently seeking an experienced Theoretical Physicist to provide technical leadership to our R&D Motor Health Management team in our Promontory, UT offices.

Role description & Responsibilities:

As a Theoretical Physicist in the Propulsion Systems R&D Labs you will be responsible for creating models of energetic material mixtures and modeling system behaviors of the devices that employ them. You will have ownership of your work from the proposal phase to final conclusions.? You will parameterize the models under study with chemical, mechanical, and meso-level data.? Hence, knowledge of various experimental techniques is a plus.? By applying boundary conditions of interest (e.g., temperature, humidity, displacement, loads) to the equations governing material behavior, and using associated error roll-up of all uncertainties, you will deliver predicted material and/or system behaviors with confidence intervals.? You will also be responsible for designing and overseeing teams to perform tests supporting validation of the models.

Job Duties:

  • Deriving?complex material and processing models from the material microstructure,?utilizing best available theory, computational tools, and software.The model types and mathematical?techniques may include but are not limited to

    • Chemical?kinetics and diffusion processes in multiple materials for arbitrary?boundary and initial conditions.

    • Techniques?to derive asymptotic solutions to aid in solving stiff equations.

    • Polymer?physics and viscoelasticity

    • Heat?transport models

    • Particulate?mechanics models

    • Slurry?mechanics models

  • Data?analysis and statistics skills, including

    • Monte?Carlo algorithms

    • Error roll-up statistical tools including regression

    • Uncertainty?quantification


Experience Requirements: ?

  • U.S.?Citizen (DoD Secret security clearance will be required)

  • In-depth?familiarity with classical mechanics, electromagnetic theory,?thermodynamics, and quantum mechanics.

  • Excellent?mathematical skills, both analytical and numerical, including

    • Solutions?of differential equations, both analytical and numerical

    • Approximations?of difficult nested integrals and sums, including a working knowledge of?many of the special functions of mathematics

Experience Preferred:

  • Good?writing and verbal/presentation skills with the ability to write?proposals, publish technical papers, compile final reports for large,?multidisciplinary programs

  • Good?team-worker, especially the ability to work well with a multi-disciplinary?team

Skills & Qualifications:

  • Ability to program in high-level languages (e.g., C++, Python and Mathematica).?

  • Must be able to design and direct complex and expensive test programs to support modeling efforts.

  • Familiarity?with condensed matter field theory and group theory is desirable.

  • Understanding?of solid mechanics, chemical kinetics, diffusion (and general transport)?phenomena, fluid mechanics, and particulate/multi-phase mechanics.

  • Familiarity?with the operation of computational chemistry codes such as Gaussian16,?NWchem, or Schrodinger is a plus.

  • Familiarity?with the operation of multi-physics numerical simulation software such as??CTH, ALE3D, or ANSYS Autodyn is a plus.


  • PhD degree in Physics plus 5 years? experience

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 www.northropgrumman.com/EEO. U.S. Citizenship is required for most positions.


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