Algorithms Software Engineer - Level 3 or 4

Company: Northrop Grumman
Location: Boulder
Posted on: April 1, 2026

Job Description:

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 has an exciting career opportunity for an experienced Algorithms Software Engineer - Level 3 or 4 with Linux environment and software development experience to join the BOA/ESL Algorithms team. The BOA program leverages OPIR data in supporting the software development and analysis of specialized combat systems that are providing advanced algorithms to improve tracking, prediction, and discrimination capabilities for emerging threats worldwide. The position is 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 / Senior Principal Algorithms Software Engineer on the BOA/ESL Team, you will be responsible for designing, developing, testing, documenting, and debugging software and complex mathematical algorithms. This fast-paced and cutting-edge research and development environment will rely on your familiarity with modern software practices. You are expected to communicate technical information effectively and clearly, and present technical approaches and findings. Our team of motivated technical talent works closely with the end user (and each other) to ensure the direct mission applicability of developed products. Essential Functions: Breadth and depth in the application of mathematics to perform data analysis and algorithm development for missile tracking applications. Development and performance analysis of tracking and state estimation algorithms. Tool and prototype development using Modern C++ and Python. Algorithm defect tracking and resolution. Technical Documentation as required. Work in cross-discipline teams and communicate clearly across various levels of engineers. Seeking candidates who find satisfaction in working on challenging and diverse assignments in collaborative settings across all levels. This requisition may be filled at a higher level based on the qualifications listed below. This requisition may be filled at either a Principal Algorithm Software Engineer (T03) or a Sr. Principal Algorithm Software Engineer (T04) level. Basic Qualifications for Principal Algorithm Software Engineer or Sr. Principal Algorithm Software Engineer: Basic Qualifications: Algorithm 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 in a STEM discipline and 3 years experience, or a PhD and 1 year of experience. Algorithm 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 in a STEM discipline and 6 years experience, or a PhD and 4 year of experience. Applicants must have a minimum of 1 year of software development experience with Python and/or C++. Applicants must have Linux experience and working knowledge of common utilities like grep, awk, cat head, etc. Experience developing, analyzing, testing, and implementing extendable / reusable algorithms. Applicants must have algorithm design and state estimation experience. Experience with data analysis - Population statistics and trend identification. The ability to bridge between theoretical concepts and practical implementation. 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 start; with the ability to obtain and maintain a TS/SCI clearance. Preferred Qualifications: A current active in-scope U.S. Government DoD issued Top Secret security clearance. Strong statistical background and skills. Experience in tracking and prediction algorithms, simulation, and validation. Experience with multiple hypothesis tracking. Experience in the numerical implementation of motion filters. Familiarity with Overhead Persistent Infrared (OPIR) and Electro-Optical Infrared (EOIR) sensors and simulations is a plus. LI-TN2 Primary Level Salary Range: $110,300.00 - $165,500.00 Secondary Level Salary Range: $137,400.00 - $206,000.00 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.

Keywords: Northrop Grumman, Colorado Springs , Algorithms Software Engineer - Level 3 or 4, IT / Software / Systems , Boulder, Colorado