{"id":698078,"url":"https://alion.io/job/northrop-grumman-principal-sr-principal-simulation-software-engineer","title":"Principal / Sr. Principal Simulation Software Engineer","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":["Oklahoma City, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":93300,"max":139900,"currency":"USD","period":"year","gross":null,"usd_annual":139900},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Bitbucket","optional":false},{"name":"C++","optional":false},{"name":"GitLab","optional":false},{"name":"Jenkins","optional":false},{"name":"Jira","optional":false},{"name":"Python","optional":false},{"name":"Scrum","optional":false},{"name":"SonarQube","optional":false},{"name":"AFSIM","optional":true},{"name":"CI/CD","optional":true}],"status":"live","first_seen_at":"2026-08-19T00:00:00Z","employer_posted_date":"2026-08-19","last_verified_at":"2026-10-24T19:30:12Z","board_verified":true,"closed_at":null,"days_open":67,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":67},"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 Aeronautics Systems has an opening for aPrincipal Simulation Software Engineer / Sr. Principal Simulation Software Engineer - to join our team of qualified, diverse individuals within our Software organization in Oklahoma City, Oklahoma.\nAccomplish:\nIn this role you will design, develop, integrate and test software for our end-user customers and businesses. Specifically, you will be responsible for the design, architecture, application development, and flight simulation. You will work with multi-disciplinary teams, such as with Systems Engineering, Cloud & Application, Test Automation, DevSecOps and Systems Test, in an Agile software development environment. Our simulation software is critical to the current and future company projects. You will analyze system capabilities to resolve problems on program intent, output requirements, input data acquisition, programming techniques and controls.\nEssential Functions:\nWork in an innovative environment, on significantly diverse assignments, and in collaborative team settings across all levels\nParticipate in the full software development life cycle including requirements, design, implementation, qualification, and delivery of software products to our customers\nArchitect and develop embedded mission systems software applications on a real time operating system\nBe a part of Agile Scrum teams to develop software products for multiple software baselines\n\nThis requisition may be filled at either a Principal Software Engineer level 3 or a Sr. Principal Software Engineer level 4\nBasic Qualifications for a Principal Software Engineer (level 3):\nBachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline and 5 years of related engineering experience; OR a Master’s degree in a STEM discipline and 3 years of related engineering experience; OR a PhD in a STEM discipline and 1 years of related engineering experience.\nExperience with the full Software Development Life Cycle (SDLC) - software design requirements, application development, integration, testing, and deployment\nExperience with at least one of the following programming or scripting languages: C, C++, and Python\nExperience with two or more of the following tools: Jira, Crucible, Bitbucket, Subversion, Bamboo, Jenkins, Gitlab, Sonarqube, Fortify, or Coverity\n Must have an active U.S. Government Secret or higher clearance.\nMust have the ability to obtain and maintain Special Access Program (SAP) clearance prior to the commencement of employment.\nBasic Qualifications for a Sr. Principal Software Engineer (level 4):\nBachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline and 8 years of related engineering experience; OR a Master’s degree in a STEM discipline and 6 years of related engineering experience; OR a PhD in a STEM discipline and 4 years of related engineering experience.\nExperience with the full Software Development Life Cycle (SDLC) - software design requirements, application development, integration, testing, and deployment\nExperience with at least one of the following programming or scripting languages: C, C++, and Python\nExperience with two or more of the following tools: Jira, Crucible, Bitbucket, Subversion, Bamboo, Jenkins, Gitlab, Sonarqube, Fortify, or Coverity\n Must have an active U.S. Government Secret or higher clearance.\nMust have the ability to obtain and maintain Special Access Program (SAP) clearance prior to the commencement of employment.\nPreferred Qualifications for level 3 and level 4:\nStrong understanding of C and C++ languages including templates, memory storage, and compiler/linker\nExperience with or knowledge of Joint Simulation Environment (JSE), Distributed Interactive Simulation (DIS), or High-Level Architecture (HLA)\nExperience with Full-Motion Flight Training Systems\nExperience with simulated threat environments such as AFSIM or NGTS\nExperience with Infrastructure as Code & configuration management\nExperience with Continuous Integration/Continuous Deployment concepts and tools such as Gitlab, Bamboo, or Jenkins\nAbility to collaborate with systems engineers, hardware designers and integration/test engineers to develop and maintain complex software systems\nExcellent communication, interpersonal skills, and the ability to interface with all levels of employees and management\nPrimary Level Salary Range: $93,300.00 - $139,900.00Secondary Level Salary Range: $116,300.00 - $174,500.00The 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.","description_format":"text","description_chars":6948,"description_truncated":false,"requirements":{"experience_years_min":8,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["Annual bonuses","Health insurance","Insurance coverage","Relocation assistance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["Government","Space & Aerospace","National Security","Defense Manufacturing"],"lifecycle":[{"event":"open","at":"2026-09-11T02:18:16Z"}],"visa":[],"liveness":{"score":12,"band":"cold","label":"Long shot","p_open":1,"p_active":0.427,"p_room":0.28,"age_days":67,"expected_fill_days":26,"reasons":["conf:10","stale_co","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-25T05:49:26Z"},"pay":{"stated_usd_annual":139900,"is_top_pay":false},"html_url":"https://alion.io/job/northrop-grumman-principal-sr-principal-simulation-software-engineer","json_url":"https://alion.io/job/northrop-grumman-principal-sr-principal-simulation-software-engineer.json","meta":{"generated_at":"2026-10-25T17:34:05Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":24948,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-26T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":12494},"rest":"https://alion.io/mcp/rest/get_company?id=12494"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fnorthrop-grumman-principal-sr-principal-simulation-software-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fnorthrop-grumman-principal-sr-principal-simulation-software-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fnorthrop-grumman-principal-sr-principal-simulation-software-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/northrop-grumman-principal-sr-principal-simulation-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fnorthrop-grumman-principal-sr-principal-simulation-software-engineer"}]}