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Principal Engineer Systems

Yesterday Antelope, CA

RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: NoCLEARANCE TYPE: SCITRAVEL: Yes, 10% of the Time Description 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 Mission Systems is seeking a Principal Systems Engineer or a Sr Principal Systems Engineer with a Signal Processing background to work in Sacramento, California. Join a team that develops transformative signal processing solutions to solve complex challenges in Signals Intelligence (SIGINT). Your work will contribute to real-world national security initiatives. We offer a wide variety of professional development opportunities, mentorship by senior engineers, and access to cutting-edge tools and technologies like Ultra-Wideband (UWB) Software-Defined Radios (SDRs) and Graphics Processing Units (GPUs) for deployment of advanced signal processing algorithms.

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The engineer will be expected to have a basic understanding of core communications systems engineering concepts from their electrical engineering degree to perform analysis, devise requirements for and implement the signal processing algorithms.
Responsibilities:

Perform architecture trades, design analysis, and performance modeling

Provide engineering support for hardware development efforts.

Design detection and characterization algorithms for Radio Frequency communication signals

Implement detection and characterization algorithms

Test signal processing algorithms and receivers in a lab environment.

Design, test, and produce detection, characterization, and geolocation algorithms.

Support the deployment of core products on new platforms (e.g., manned aircraft, drones, ships, etc.).

This position can be filled at the level 3 Principal or Level 4 Senior Principal based on specific requirements listed below.

Basic Qualifications for Principal Systems Engineer Level 3:

BS degree in STEM with 5 years relevant experience; or MS degree in STEM field with 3 years of related experience; or PhD in STEM field with 1 year of related experience

Domain Expertise: Understanding tactical SIGINT operations, military capabilities, and geolocation concepts.

Requirements Translation: Ability to convert complex operational needs into technical system requirements

DSP Fundamentals: Understanding of modulation/demodulation, FFT/spectral analysis, filtering (FIR/IIR), resampling, channelization, and detection/estimation theory.

SIGINT/RF Fundamentals: Experience with Software Defined Radios (SDR), RF front-ends, IQ data, geolocation techniques (DF/beamforming), and signal characterization

Ability to obtain and maintain a Top Secret/SCI security clearance

Basic Qualifications for Sr Principal Systems Engineer Level 4:

BS in STEM degree with 8 years relevant experience; or MS degree in a STEM field with 6 years of related experience; or PhD in STEM field with 3 years of related experience

Domain Expertise: Understanding tactical SIGINT operations, military capabilities, and geolocation concepts.

Requirements Translation: Ability to convert complex operational needs into technical system requirements

DSP Fundamentals: Understanding of modulation/demodulation, FFT/spectral analysis, filtering (FIR/IIR), resampling, channelization, and detection/estimation theory.

SIGINT/RF Expertise: Experience with Software Defined Radios (SDR), RF front-ends, IQ data, geolocation techniques (DF/beamforming), and signal characterization

Ability to obtain and maintain a Top Secret/SCI security clearance.

Preferred Qualifications:

Experience with the Atlassian tool suite (Jira, Confluence, Bitbucket)

Practical experience or coursework in programming languages such as C++, Rust, or Python.

Experience with simulating and processing RF communications in GNU Radio.

Agile/DevOps: Experience in Agile software development and containerization tools like Docker or Kubernetes for deploying SIGINT applications

GPU Acceleration: Demonstrated experience with CUDA for algorithm optimization

* Active TS with SCI clearance

Primary Level Salary Range: $114,000.00 - $171,000.00Secondary Level Salary Range: $142,200.00 - $213,400.00The 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.

Client-provided location(s): Antelope, CA
Job ID: NorthropGrumman-R10229546
Employment Type: OTHER
Posted: 2026-04-17T20:35:53

Perks and Benefits

  • Health and Wellness

    • Health Insurance
    • Dental Insurance
    • Vision Insurance
    • Life Insurance
    • Short-Term Disability
    • Long-Term Disability
    • HSA
    • HSA With Employer Contribution
    • On-Site Gym
    • Pet Insurance
    • Mental Health Benefits
    • Virtual Fitness Classes
  • Parental Benefits

    • Birth Parent or Maternity Leave
    • Non-Birth Parent or Paternity Leave
    • Fertility Benefits
    • Adoption Assistance Program
    • Family Support Resources
    • Adoption Leave
  • Work Flexibility

    • Flexible Work Hours
    • Remote Work Opportunities
    • Hybrid Work Opportunities
    • Four-Day Work Week
  • Office Life and Perks

    • Commuter Benefits Program
    • Company Outings
    • On-Site Cafeteria
    • Holiday Events
  • Vacation and Time Off

    • Paid Vacation
    • Paid Holidays
    • Sabbatical
    • Leave of Absence
  • Financial and Retirement

    • 401(K)
    • 401(K) With Company Matching
    • Performance Bonus
    • Relocation Assistance
    • Financial Counseling
    • Profit Sharing
  • Professional Development

    • Tuition Reimbursement
    • Promote From Within
    • Mentor Program
    • Shadowing Opportunities
    • Access to Online Courses
    • Lunch and Learns
    • Internship Program
    • Leadership Training Program
    • Associate or Rotational Training Program
  • Diversity and Inclusion

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