Sr. Principal Software Engineer - GWS

Northrop Grumman
Huntsville, AL
RELOCATION ASSISTANCE: No relocation assistance available

CLEARANCE TYPE: Secret

TRAVEL: 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 Space Systems – Launch and Missile Defense Systems has an exciting career opportunity for a Sr. Principal Software Engineer to join our team of qualified, diverse individuals. This position will be in Huntsville, AL.

Position Overview:

As a software developer on the GMD Weapon System (GWS) Fire Control (GFC) software team, you will be part of the team that writes the software (currently ~1.5 million lines of code) that evaluates and manages the threat scene for the missile defense system that protects the US. You will work in a collaborative environment to understand, implement, and test existing and new capabilities and algorithms and may participate in code modernization and translation of Ada code to C++. Many of the algorithms and capabilities implemented by the GFC team are mathematics and physics based complex solutions that will be highly visible to the GWS customer, MDA. In addition to software development you will also be expected to support reviews of requirements and test cases that are developed in support of the GFC software team. 

Basic Qualifications:

  • 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.

  • Recent and extensive Experience Developing Software in Ada, C++ or Java 

  • Willingness to become highly proficient with Ada software development

  • Extremely Strong Math and Physics background required

  • Quick to learn and absorb new concepts and information

  • Unix/Linux Operating System Experience 

  • Must be able to support an in-person / closed-area work environment 

  • Ability and willingness to travel up-to 10% to support business needs.

  • Applicants must have a current active in-scope DoD-issued Secret security clearance at the time of application, which is required to start

Preferred Qualifications:

  • Advanced degree in mathematics or physics

  • Highly experienced with Linux, scripting, and operations

  • Experience with automated, software requirements testing and analysis

  • Experience with the Missile Defense Agency (MDA) Ground-based Midcourse Defense (GMD) program.

  • Experience with Agile Project Management tools (Jira/Confluence) and DevSecOps tools and methods (Jenkins, Ansible, Git/Bitbucket) of continuous integration/continuous delivery and deployment (CI/CD) automation

  • Recent MATLAB and Python Experience

  • Experience with processing multi-sensor, multi-spectrum sensor tracks with multiple biases

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 U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.
Posted 2026-05-24

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