Orbital ATK Careers

Sr. Principal Engineer

Plymouth, MN
Engineering and Sciences

Job Description

Job ID: RKC20182602-44088

Orbital ATK Defense Systems Group has an exciting opening for a talented Senior Principal Engineer within the Armament Systems Division based in Plymouth, MN.

As a global technology leader with revenues of nearly $4.5 billion, Orbital ATK designs, builds and delivers space, defense and flight systems to customers around the world.  Orbital ATK employs approximately 12,000 people in 18 states across the U.S. and several international locations.

Position Overview


The development of innovative and intelligent armament systems, designed to protect and enable our armed forces, is accelerating.  This has increased the need for leaders who have a passion for technology development, paired with demonstrated expertise in process excellence.  These leaders will drive to continually outperform the competition and exceed customer expectations while acting with integrity, loyalty, and respect.

As a Senior Principal Engineer specializing in non-linear structural and thermal analysis you will perform analysis and design of complex materials, structural components, and functional systems of company products. You will evaluate completed analyses with other technical groups and make recommendations on modifications necessary to achieve the most ideal design.


  • Demonstrate and apply advanced knowledge of technical principles, theories, and concepts and develop the      methodology to define the problem in FEA software.
  • Perform highly complex structural and thermal analysis simulation and modeling efforts using FEA software (ABAQUS, ANSYS) to support design activities across all Armament System Division (projectiles) and Missile Products Division (warheads, fuzes) product lines at the Plymouth location. These simulations include development of structural model, meshing, selection of boundary conditions and constraints, selection of applicable material properties, selection of      proper simulation code and methodology, interpretation of analytical results, and recommendation for design improvement.
  • Develop analytical approaches to assist in the resolution of unique thermal and structural mechanics issues. 
  • Develop material models for structural analyses efforts.
  • Prepare and present analytical results in both oral and written formats to both internal and external customers.
  • Mentor junior engineers in analysis work and review and approve their analysis results.
  • Form close working relationships with the customer technical community and specific customer technical points of contact.
  • Support innovation through application of technology to new product architecture development.

Position Requirements:

  • Bachelor’s degree in Mechanical, Aerospace, Civil Engineering or Physics
  • Minimum of 10 years of experience with B.S. or 7 years with M.S. or 5 years with Ph.D.
  • U.S. citizen and qualify for a U.S. Government security clearance.  Existing clearance preferred.

Preferred Skills:

  • Prior experience in comparable position in precision weapons; ammunition and gun systems; and fusing and warhead projects.
  • Advanced experience in analyzing complex structural or thermal problems utilizing FEA software (ABAQUS, ANSYS)
  • Ability to work effectively in a fast paced, rapidly changing, short turn-around environment.
  • Strong analytical skills and the ability to organize/prioritize job assignments and tasks.
  • Strong communications skills, oral and written.
  • Working knowledge of Microsoft Office suite (Excel, Word, PowerPoint, Project).
  • Ability to travel occasionally to interface with suppliers and meet with various customers

Position may be filled at a different level commensurate with the degree of qualifications, directly relevant experience and objective evidence of performance.

If you are a dynamic, successful, driven professional, Orbital ATK is the company that will further your experience and career growth. We offer a highly competitive salary, comprehensive benefits including medical, dental, 401k, tuition reimbursement, and much more.

We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Equal Opportunity Employer M/F/V/D

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Job Type: Full Time
Desired Travel: less than 25%
Years of Experience: +10 Years
Education: Bachelors
Expertise: Engineering
Group: Defense