Develop technical solutions to complex problems which require the regular use of ingenuity and creativity. Perform work without appreciable direction. Life Insurance Employee Assistance Programs & Work/Life Solutions Paid Time Off Health & Wellness Resources Employee Discounts This position's standard work schedule is a 9/80. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off. This role may offer a competitive relocation assistance package. Sr. Principal Engineer Software: 8 Years with Bachelor's in related field of study, 6 Years with Masters, 4 Years with PhD or 4 additional years in lieu of a degree. Active DoD Secret clearance - a reinvestigation date occurring in the last 6 years. US Citizenship with Ability to obtain Special Program Access (SAP) Proficient in C, C++ or Assembly Thorough understanding of Operating Systems such as VxWorks and Linux. A solid understanding in hardware architecture, Hardware Registers, Busses, Interrupts, Device Communication, and Protocols like PCI, SPI, I2C, UARTS, SERDES, Experience in CPU configuration, Cache Configuration, Flash, Memory map configuration, PCI tree static configuration Proficient in Embedded Linux Development. Hands-on experience working with a Real Time Operating System (RTOS) Knowledge of Board Support Package development and Bootloaders Sentinelsoftware Primary Level Salary Range: $131,100.00 - $196,700.00 The above salary range represents a general guideline; however, Northrop Grumman considers a number of factors when determining base salary offers such as the scope and responsibilities of the position and the candidate's experience, education, skills and current market conditions. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. Annual bonuses are designed to reward individual contributions as well as allow employees to share in company results. Employees in Vice President or Director positions may be eligible for Long Term Incentives. In addition, Northrop Grumman provides a variety of benefits including health insurance coverage, life and disability insurance, savings plan, Company paid holidays and paid time off (PTO) for vacation and/or personal business. The application period for the job is estimated to be 20 days from the job posting date. However, this timeline may be shortened or extended depending on business needs and the availability of qualified candidates. Northrop Grumman is an Equal Opportunity 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 and pay transparency statement, please visit http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.