Sentinel Sr Principal Software Engineer - 20459

Northrop Grumman; Roy (UT); On-site; USD 123,000 - 184,000; Full time

Benefits offered by this job

Medical, Dental & Vision coverage

401k

Educational Assistance

Life Insurance

Employee Assistance Programs & Work/Li

Job summary

Northrop Grumman is seeking a Senior Principal Software Engineer for the Sentinel program in Roy, Utah. You will lead design, development, and integration of software for air and space systems within a collaborative team environment.

The role requires top-level security clearance, strong mentoring skills, and hands-on programming across multiple languages and platforms. The team emphasizes CI/CD and robust documentation practices.

Qualifications

• U.S. citizenship required with an active Secret clearance/SAP at day 1.
• Bachelor’s degree in related field; 8+ years experience, 6+ with Master’s; 4+ with PhD or 4 extra years.
• Hands-on programming in Python, C/C++, Java.
• Experience with TCP/IP/UDP networking and debugging tools.
• Experience with JSON design/serialization and PostgreSQL.
• QT cross‑platform C++ framework experience.
• DoD training and simulation systems development.
• Full software life cycle: design, integration, deployment, in-service support.

Responsibilities

• Assist with software design and development of specialized tools and techniques.
• Documentation, participate in design, code, and software readiness reviews; program in C, C++, Java, Python.
• Develop Windows, Linux, and cross-compiled applications; embedded platform development.
• Support the software life cycle engineering: design, integration, verification, deployment, and in-service support.
• Support CI/CD pipelines for multiple products.

Skills

C/C++

Python

Java

QT

DoD systems

CI/CD

SQL/PostgreSQL

Education

Bachelor's in STEM

Master's in STEM

PhD

Tools

GitHub

GitLab

Jenkins

Jira

Azure DevOps

PostgreSQL/MySQL

Job description

RELOCATION ASSISTANCE: No relocation assistance 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.

At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems in air and space that impact people’s lives around the world today, and for generations to come. Our work preserves freedom, democracy, and advances human discovery and our understanding of the universe. We look for people who have bold new ideas, courage and a pioneering spirit to join forces to invent the future and have a lot of 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 would like you to join our team as a Sr Principal Software Engineer. This position will be located in Roy, UT and will support the Sentinel Program. Northrop Grumman supports the Air Force’s sustainment, development, production and deployment of hardware and system modifications for Intercontinental Ballistic Missile (ICBM) Ground and Airborne Launch Control Systems, Launch Facilities and associated infrastructure.

What You’ll Get to Do:

• Assist with software design and development of specialized tools and techniques.
• Provides/authors documentation, participate in design, code, and software readiness reviews in accordance with the Government's software development procedures and processes. Program systems in languages including C, C++, Java, and Python.
• Develop Windows, Linux, and cross-compiled applications; Embedded platform development using proprietary, COTS, GOTS, or open-source build environments.
• Supporting the software life cycle engineering execution to include design, integration, verification, deployment, and in-service support.
• Support the design and implementation of sustainable continuous integration and continuous delivery (CI/CD) pipelines for multiple products.

Position Benefits:

• Medical, Dental & Vision coverage
• 401k
• Educational Assistance
• Life Insurance
• Employee Assistance Programs & Work/Life Solutions
• Paid Time Off
• Health & Wellness Resources
• Employee Discounts

This positions standard work schedule is a 9/80. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off

Basic Qualifications:

• Senior Principal Software Engineer: 8 Years with Bachelor’s in related field of study, 6 Years with Masters, 4 Years with PhD or 04 additional years in lieu of a degree.
• U.S. citizenship required with an active Secret clearance/SAP at day 1.
• Strong communication skills and the ability mentor and coach junior engineers.
• Hands‑on programming experience with one or more high‑level programming languages such as Python, C#, C/C++, and Java.
• Working knowledge of network and communication protocols, including experience sending and receiving data over TCP/IP and UDP sockets, as well as familiarity with serial communication interfaces (e.g., RS-232/RS-485) and related debugging tools.
• Experience working with JSON as a primary data format, including schema design, validation, serialization/deserialization in code (e.g., C++/Python/Java), and persisting JSON documents or fields in databases such as PostgreSQL (JSON/JSONB), or similar.
• Experience with QT cross‑platform C++ application framework.
• Experience with DoD training and simulation systems development.
• Full life cycle design, integration, verification, deployment, and in-service support.
• Experience with troubleshooting and debugging systems.

Preferred Qualifications:

• Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM) with 8+ years of experience in a related engineering field (Computer Science, Information Systems, or Computer/Electrical Engineering); OR
• Master’s degree in Science, Technology, Engineering, or Mathematics (STEM) with 6+ years of experience in a related engineering field.
• Experience with software CI/CD tools such as GitHub, GitLab, Jenkins
• Experience with development task tracking software such as Jira or Azure DevOps
• Experience with relational database design, management, optimization, and interaction. PostgreSQL or MySQL preferred.
• Experience with Agile software development, object-oriented architecture, software integration and testing.
• Software rapid prototyping experience to include designing and implementing solutions with minimal formal requirements.
• The ability to learn new technologies quickly and independently solve problems in a fast‑paced environment.

SentinelSoftware

Primary Level Salary Range: $122,800.00 - $184,200.00

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 http://www.northropgrumman.com/EEO. U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.