Principal Software Engineer – Application Services
- Location:
- Boulder, Colorado, United States of America
About Northrop Grumman

Northrop Grumman solves the toughest problems in space, aeronautics, defense and cyberspace to meet the ever-evolving needs of our customers worldwide. Our 90,000 employees are Defining Possible every day using science, technology and engineering to create and deliver advanced systems, products and services. Northrop Grumman careers and internships are as varied as your interests, with a lifetime of potential that will allow you to work together with people from many backgrounds, personal passions and disciplines.
The Launch and Missile Defense Systems division within Northrop Grumman Space Systems is seeking a Principal Software Engineer to join the Template Kinematic Estimation Library (TKEL) team. Our domain provides rewarding work that contributes to the latest advancements being made in the missile defense industry. TKEL aims to provide a common and extensible mission data processing framework that accelerates new multi-int fusion programs. The position is located in Boulder, CO. Boulder is nestled in the foothills of the Rocky Mountains, and only 25 miles from downtown Denver.
Position Overview:
As a Principal Software Engineer, you will be responsible for the design, development, documentation, testing, deployment, and debugging of software applications. This includes researching, identifying, and implementing solutions to complex, multi-disciplinary software problems.
Essential Functions:
- Work with algorithm engineers to design and implement algorithms that are both performant and extensible to new mission areas (e.g. OPIR, Radar) and platforms (e.g. x86, ARM, cloud)
- Integration of capabilities into new and existing programs
- Software development using Agile Methodology
- Utilizing Jira to document bugs and enhancements
- Software engineering support for multi-language (Modern C++, Python, and Java) and complex software systems
- Enhance usability, performance, and maintainability of systems via analysis and bug fixes
- Coordinate, integrate, and resolve defects in conjunction with the test team
- Preparation of software documentation and models
Seeking candidates who find satisfaction in working on challenging and diverse assignments in collaborative settings across all levels.
Basic Qualifications:
- 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 in a STEM discipline and 3 years experience, or a PhD and 0 years of experience.
- Linux experience
- C/C++ proficiency
- Object Oriented Programing (OOP) experience
- Configuration management software experience (i.e. Git, etc.)
- Containerization and cloud experience
- Ability and willingness to travel up-to 10% to support business needs
- Applicants must have a current active in-scope U.S. Government DoD issued Secret security clearance at the time of application which is required to starte.
Preferred Qualifications:
- A current active in-scope U.S. Government DoD issued Top Secret/SCI (TS/SCI) security clearance.
- OO design pattern and modern data structure experience
- Configuration management software experience (i.e. Git, etc.)
- Software development and troubleshooting in a team environment
- Legacy software and modernization effort experience
- C++ Template Metaprogramming
- Java, Python, and shell scripting language experience
- Agile development experience
- Atlassian Tool Suite experience
- Technical leadership experience
- Full software development lifecycle experience