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Salary
$114k – $171k per year
Location
In office (Boulder)
Seniority
Staff · 8+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 17, 2026. First seen by Alion on Sep 2, 2026. Northrop Grumman scores A on the Alion truth index.

Overview
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Profile match
Northrop Grumman is an American defence contractor whose oldest predecessor was founded in 1939, and which took its present form through the 1994 combination of Northrop and Grumman. It builds strategic systems including the B-21 Raider bomber and the Sentinel intercontinental ballistic missile programme, military and civil space systems, radars and electronic warfare equipment, autonomous aircraft, and mission systems and software for the United States armed forces and allied governments. Headquartered in Falls Church, Virginia and listed on the New York Stock Exchange, it earns the large majority of its revenue from the American government and employs close to one hundred thousand people.
RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SecretTRAVEL: 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.

The Northrop Grumman Space Systems, Multi-Domain Operations, and Missile Defense Integration Business Unit (BU), Advanced Programs group has an opening for a Software Engineer - Level 3 or 4 (mathematician/algorithms developer/software engineer). We are working on an autonomous distributed tracking system - Join our high performing software team and come make history with us! The position is located on-site in Boulder, CO. Boulder is nestled in the foothills of the Rocky Mountains, and only 25 miles from downtown Denver.

Join the Advanced Programs team as a Mathematician with Linux environment and C++ software development exposure.

Essential Functions:

  • Performance analysis of tracking and state estimation algorithms
  • Tool and prototype development using modern C++ v20+ and Python
  • Algorithm defect tracking and resolution
  • Analysis tool development (Python)
  • Technical documentation input as required
  • Input to customer-facing presentations

This requisition may be filled at a higher grade based on qualifications listed below.

This requisition may be filled at either a Principal Software Engineer - Level 3 or a Sr. Principal Software Engineer - Level 4.

Basic Qualifications for a Software Engineer (Level 3 or 4):

  • Principal Software Engineer - Level 3: Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 5 years of related experience, or a Master's Degree and 3 years of related experience, or 1 year of experience with a PhD.
  • Sr. Principal Software Engineer - Level 4: Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 8 years of related experience, or a Master's Degree and 6 years of related experience, or 4 years of experience with a PhD.
  • An active in-scope U.S. Government DoD Secret security clearance is required to start; with the ability to obtain and maintain a Top Secret security clearance.

Preferred Qualifications:

  • Linux Experience
  • Modern C++ Experience - Ability to write modern C++ code (templates, understanding move semantics, smart pointers, etc.)
  • Python Experience
  • Strong Math Background
    • Stochastic Processes
    • Linear Algebra
    • Probability
  • Statistical Principles & Analysis Experience
    • Hypothesis Testing
    • Probability Distributions
    • Conditional Probability
    • Multi-Variate Random Variables
    • Kalman Filters
    • Least Squares
  • Algorithm design and state estimation experience
  • Stereo vision systems experience
  • Infrared systems experience
  • Satellite systems experience
  • Data fusion experience
  • Distributed systems experience
  • Algorithm verification and validation experience
  • Plotly, javascript, and SQL experience
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.
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