Software Engineer Level 3/4 (AHT)

RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE REQUIRED FOR START: Yes 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 Defense Systems is seeking a Software Engineer Level 3/4 to join our multi‑discipline Advanced Weapons engineering team. The role focuses on the development, integration, deployment, and sustainment of satellite ground‑segment software that supports test events, launch rehearsals, and operational missions. Location: Northridge, CA – no remote/telework option. Security: Active U.S. DoD Secret clearance What You’ll Get to Do Full‑stack development at the OS, platform, and mission‑unique software layer. Design and implement applications/services using service‑oriented or object‑oriented architectures and messaging protocols. Work with a variety of languages and toolsets, including C, C++, C# or Java or Python . Act as a self‑starter, making decisions that consider overall project budget and schedule. Support ground‑segment operations and associated configurations, troubleshooting both software errors and hardware issues that affect ground software. Acceptance Test events – planning, execution, and reporting. Develop and maintain test automation frameworks and scripts. Configure ground‑segment software for development, test, and operational environments. Resolve and remediate software defects; implement enhancements driven by customer change requests or mission needs. Provide ground‑software support during launch and launch‑rehearsal events. Install new ground‑segment software across operational, development, and test environments. Principal Software Engineer (Level3) Bachelor’s degree in a STEM related field with 5 years of Computer or Software engineering experience, or 3 years of experience with a Master’s degree. Real world experience working in C/C++ and knowledge in C#, Java, Python. Experience working with Windows, Unix/Linux OS. Experience with full software lifecycle: specification, design, implementation, documentation, integration, debug and maintenance are required. Experience in Atlassian Products like Jira, Gitlab, Confluence and have experience running teams in the Scrum Master capacity. Proficiency in diagnosing electronic, mechanical, and hydraulic systems, including the use of oscilloscopes, multi‑meters, and signal generators. Active DoD Secret Clearance, with ability to be cleared to special access programs. SrPrincipal Software Engineer (Level4) Bachelor’s degree in a STEM related field with 8 years of Computer or Software engineering experience, or 6 years of experience with a Master’s degree, or 4 years of experience with a PhD. Expert level real world experience working in C/C++ and knowledge in C#, Java, Python. Extensive experience working with Windows, Unix/Linux OS. Experience with full software lifecycle: specification, design, implementation, documentation, integration, debug and maintenance are required. Experience in Atlassian Products like Jira, Gitlab, Confluence and have experience running teams in a Product Owner or Team Lead capacity. Proficiency in diagnosing electronic, mechanical, and hydraulic systems, including the use of oscilloscopes, multi‑meters, and signal generators. Expertise in maintaining, adjusting, and calibrating precision measurement equipment to verify they meet established standards and working with different network protocols. Active DoD Secret Clearance, with ability to be cleared to special access programs. Preferred Qualifications Software Development and/or Software Engineering background with an Agile/DevSecOps mindset. Ability to troubleshoot hardware/software and identify root cause issues. Ability to set up test equipment to support software development. Experience working with hardware programmers such as JTAG. Understanding of TCP/IP protocols, serial communication, and MIL‑STANDARD 1553 protocol. Experience with Visual Studio. Primary Level Salary Range: $114,000.00 - $171,000.00 Secondary Level Salary Range: $142,200.00 - $213,400.00 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 U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions. Job Category: Engineering #J-18808-Ljbffr