Northrop Grumman Defense Systems is seeking a Sr. Principal Software Engineer. This position is located in Clearfield, UT and supports the ICBM Sustainment Team.
What you’ll get to do:
• Participate in the full software development life cycle, including requirements definition, design, implementation, qualification, and delivery of software products to our customers.
• Deploy software applications to production environments; monitor system performance; identify and implement improvements; maintain existing software applications and systems; and respond to and resolve production issues in a timely manner.
• Maintain existing software and environments in accordance with disciplined engineering practices, sustaining applications, databases, and interfaces in compliance with MIL-STD-31000C, Technical Data Packages, and applicable AF/DoD standards.
• Facilitate the creation and maintenance of mission critical software solutions actively used by a government customer.
• Help define and implement automated test strategies (unit, integration, and regression where applicable).
• Work independently as a self starter, demonstrating initiative and the ability to complete tasking with minimal oversight.
• Integrate software capabilities with hardware components in a complex, mission critical environment.
Basic Qualifications:
• Bachelor’s degree with 8 years of relevant experience, Master’s degree with 6 years of relevant experience, or PhD with 4 years of relevant experience; an additional 4 years of experience may be considered in lieu of a degree.
• Experience with a variety of programming languages, including C#, JavaScript, and Python.
• Full stack development experience, including both frontend and backend solutions.
• Experience with hardware–software integration.
• Experience with Structured Query Language (SQL), including developing queries, stored procedures, and functions.
• Experience working with software version control systems (e.g., Git).
• Ability to obtain a DoD Secret clearance.
• U.S. citizenship is required.
Preferred Qualifications:
• Active DoD Secret clearance.
• Demonstrated ability to interpret and maintain existing code, including legacy applications (sustainment/maintenance).
• Experience with CI/CD pipelines such as Jenkins, Azure DevOps, or equivalent.
• Experience with C/C++.
• Experience with server-side development (e.g., RESTful APIs, services).
• Experience with GUI design and user experience (UX) best practices.
• Experience developing technical documentation, including software version descriptions and user/administration guides.
Primary Level Salary Range: $122,800.00 - $184,200.00The 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.Skills Required
- Bachelor's degree with 8 years of relevant experience, master's degree with 6 years, or PhD with 4 years; an additional 4 years of experience may substitute for a degree.
- Experience with C#, JavaScript, and Python.
- Full-stack development experience across frontend and backend solutions.
- Experience with hardware-software integration.
- Experience with SQL, including queries, stored procedures, and functions.
- Experience with software version control systems such as Git.
- Ability to obtain a DoD Secret clearance.
- U.S. citizenship.
- Active DoD Secret clearance.
- Experience interpreting and maintaining legacy applications.
- Experience with CI/CD pipelines such as Jenkins or Azure DevOps.
- Experience with C/C++.
- Experience with server-side development, including RESTful APIs or services.
- Experience with GUI design and UX best practices.
- Experience developing technical documentation, including software version descriptions and user or administration guides.
Northrop Grumman Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Northrop Grumman and has not been reviewed or approved by Northrop Grumman.
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Healthcare Strength — Health coverage offers multiple medical plan options by region alongside dental, vision, mental‑health resources, and wellness programs. Recent materials also highlight added family‑building support, including a dedicated fertility benefit.
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Retirement Support — The 401(k) savings plan is positioned as competitive with a company match, auto‑escalation features, and access to an employee stock fund/ESPP. Official filings and benefits guides emphasize retirement as a core element of the Total Rewards package.
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Leave & Time Off Breadth — Many sites offer a 9/80 schedule, generous PTO, paid holidays, and flexible/telework options where program needs allow. Paid parental and caregiver leave are prominently featured, with recent enhancements for the delivering parent.
Northrop Grumman Insights
What We Do
We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation and respect. Your unique perspective will help achieve our shared vision for the future of global security. Every step of the way, you'll be supported by world-class training, employee resource groups and a comprehensive benefits package that enables greater health and happiness for you and your family. Worldwide and across disciplines, we’re challenging what’s possible for technology to protect people and places from undersea to outer space and into cyberspace. And we see the impact of our performance every day. We are Northrop Grumman, and we work on what matters—now, you too can make a difference. Explore opportunities in engineering, IT, manufacturing, business management, cybersecurity and more with us. Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.







