{"id":3342380,"url":"https://alion.io/job/northrop-grumman-principal-engineer-software-software-integration","title":"Principal Engineer Software- Software Integration","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":82,"open_postings":498,"ghost_share":0.002,"stale_share":0.697,"repost_share":0.014,"time_to_fill_p50_days":25,"computed_at":"2026-10-30T05:48:23Z"}},"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":["San Diego, 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":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"C++","optional":false},{"name":"Python","optional":false},{"name":"RTOS","optional":false},{"name":"Scrum","optional":false},{"name":"Cameo Systems Modeler","optional":true},{"name":"CI/CD","optional":true},{"name":"GitHub","optional":true},{"name":"GitLab","optional":true},{"name":"JavaScript","optional":true},{"name":"Jenkins","optional":true},{"name":"Jira","optional":true},{"name":"MATLAB","optional":true},{"name":"Robot Framework","optional":true},{"name":"SonarQube","optional":true}],"status":"live","first_seen_at":"2026-10-25T00:00:00Z","employer_posted_date":"2026-10-25","last_verified_at":"2026-10-30T13:37:51Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"RELOCATION ASSISTANCE: Relocation assistance may be availableCLEARANCE REQUIRED FOR START: YesCLEARANCE TYPE: Interim 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.Accomplish\nIn this role you will integrate, modify and test customized or standardized mission systems software using software engineering best practices and standards, and participate in the full life-cycle of software development, to include requirements development, modeling and design, application development, unit to CSCI testing, integration, formal system testing, release, installation, and maintenance.\nKey Responsibilities:\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\nBe a part of Agile Scrum teams to develop software products for multiple software baselines.\nThe individual we seek will be self-motivated, proactive, goal-oriented to help us grow our services, become even better at what we do and will possess the following qualifications.\nBasic Qualifications:\nBachelor’s Degree in (STEM) discipline from an accredited university with 5 Years experience; OR a master’s degree in a (STEM) discipline from an accredited university with 3 Years experience; OR a PhD in a (STEM) discipline from an accredited university with 1 year experience.\nExperience with Agile Software Development, object-oriented architectures, designs, programming, debugging, and hardware-software integration and testing. \nProficient knowledge with the full Software Development Life Cycle (SDLC) - software design requirements, application development, integration, testing, and deployment.\nExtensive knowledge with at least two of the following programming or scripting languages: C, C++, and Python.\nFamiliar with Architecting, Implementing, Integrating, Verifying and Qualifying Safety-Critical Embedded Real Time Software running on various RTOS.\nStrong understanding of RHEL operating environment\n Must have the ability to obtain and maintain a U.S. Government Secret clearance and Special Access Program (SAP) within a reasonable amount of time\nPreferred Qualifications:\nExperience with network protocols and troubleshooting network issues\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.\nExperience with Software Change Control, Change Management, Code Quality, Static Analysis, and CI/CD tools such as: Atlassian tool suite, Jira, GitHub, GitLab, SonarQube, AND/OR Jenkins\nExperience with DOORs AND Software Requirement Specification Testing using Simulators, automated scripting languages such as Python, MATLAB, JavaScript, Robot Framework AND/OR Bash.\nExperience architecting, Modeling (Rhapsody or Cameo), Implementing, Maintaining, integrating, and Debugging OO C++ software running on Real-Time Operating systems.\nPrimary Level Salary Range: $114,000.00 - $171,000.00The 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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