{"id":2898020,"url":"https://alion.io/job/northrop-grumman-algorithms-software-engineer-lead-level-3-or-4-aht","title":"Algorithms Software Engineer Lead - Level 3 or 4 (AHT)","company":{"id":12494,"name":"Northrop Grumman","domain":"northropgrumman.com","url":"https://alion.io/company/northropgrumman","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":83,"open_postings":389,"ghost_share":0,"stale_share":0.689,"repost_share":0.008,"time_to_fill_p50_days":26,"computed_at":"2026-10-25T05:49:26Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Boulder, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":114000,"max":171000,"currency":"USD","period":"year","gross":null,"usd_annual":171000},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false},{"name":"Hypothesis","optional":true},{"name":"JavaScript","optional":true},{"name":"Linux","optional":true},{"name":"Plotly","optional":true},{"name":"SQL","optional":true},{"name":"Verification & Validation","optional":true}],"status":"live","first_seen_at":"2026-10-13T00:00:00Z","employer_posted_date":"2026-10-13","last_verified_at":"2026-10-24T19:30:12Z","board_verified":true,"closed_at":null,"days_open":12,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":12},"description":"RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: SecretTRAVEL: Yes, 10% of the TimeDescription\nAt 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, Multi-Domain Operations, and Missile Defense Integration Business Unit (BU), Advanced Programs group has an exciting career opportunity for an Algorithms Development Software Engineer Lead - Level 3 or 4 to join our team of qualified, diverse individuals. Our team is chartered with providing innovative technologies to develop, design, and produce optimized product lines across multiple customers while providing a decisive advantage to the warfighter. We are excited for you to join our team working on challenging and diverse assignments in a collaborating research and development environment. 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.\nPosition Overview:\nAs an Algorithms Developer / Software Engineer Lead - Level 3 or 4, you will be responsible for leading a team of 2-4 people. We are a smaller team of ~15 people working on cutting edge missile tracking and interception capabilities. Designing, developing, testing, documenting, debugging software and mathematical algorithms used to identify different threats. This fast-paced and cutting-edge research and development environment will rely on your familiarity with modern software practices, physics principles, and mathematics.\nEssential Functions:\nPerformance analysis of tracking and state estimation algorithms\nTool and prototype development using modern C++ v20+ \nAlgorithm defect tracking and resolution\nAnalysis tool development (Python)\nTechnical documentation input as required\nInput to customer-facing presentations\nCollaborate with Chief Architect, Program Management and Team Lead peers to set technical vision for the tracker team\nProvide tasking and mentorship to 2-4 Tracker team members\nThe selected candidate should thrive in a fast-paced work environment with high expectations, significantly diverse assignments, and collaborative team settings across all levels.\nThis requisition may be filled at a higher grade based on qualifications listed below.\nThis requisition may be filled at either a Principal Software Engineer - Level 3 or a Sr. Principal Software Engineer - Level 4.\nBasic Qualifications:\n 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 STEM degree and 3 years of related experience, or 1 year with a PhD.\n 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 STEM degree and 6 years of related experience, or 4 years with a PhD.\nApplicants must have a current active in-scope U.S. Government issued Secret security clearance and the time of application, with the ability to obtain and maintain a Top Secret security clearance.\nAbility and willingness to travel 10% to support business needs.\nPrior C++ Development Experience\nPreferred Qualifications:\nCurrent active in-scope Top Secret security clearance\nLinux Experience\nModern C++ Experience - Ability to write modern C++ code (templates, understanding move semantics, smart pointers, etc.)\nPython Experience\nStrong Math BackgroundStochastic Processes\nLinear Algebra\nProbability\n\nStatistical Principles & Analysis ExperienceHypothesis Testing\nProbability Distributions\nConditional Probability\nMulti-Variate Random Variables\nKalman Filters\nLeast Squares\n\nAlgorithm design and state estimation experience\nStereo vision systems experience\nInfrared systems experience\nSatellite systems experience\nData fusion experience\nDistributed systems experience\nAlgorithm verification and validation experience\nPlotly, JavaScript, and SQL experience\nPrior Leadership and Mentorship Experience\n#SpaceEngJobs\nPrimary 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. 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