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Sentinel Principal​/Sr. Principal Cyber Software Engineer

Job in Huntsville, Madison County, Alabama, 35824, USA
Listing for: Northrop Grumman Corp. (AU)
Full Time position
Listed on 2026-01-23
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer
Salary/Wage Range or Industry Benchmark: 119600 - 179400 USD Yearly USD 119600.00 179400.00 YEAR
Job Description & How to Apply Below
Position: Sentinel Principal / Sr. Principal Cyber Software Engineer - 17424

RELOCATION ASSISTANCE:
Relocation assistance may be available

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 (NGDS) is seeking a Principal/Sr. Principal Cyber Software Engineer (T03/T04) to join our team in Huntsville, AL
.

Job Description
  • Administer systems based on Linux and Windows operating systems
  • Automate system deployment, operation and maintenance using Infrastructure as Code (IaC) and Configuration Management (CM) tooling
  • Work with microservices and distributed application architecture, such as containers, Kubernetes, and/or serverless technology
  • Implement clean and maintainable infrastructure-as-code that adheres to industry best practices
  • Automate cloud native technologies in air-gapped environments, deploy applications, and provision critical infrastructure
  • Design and implement security measures, such as firewalls, intrusion detection and prevention systems, and encryption
  • Implement and maintain security policies and procedures to comply with industry standards and regulations
  • Provide technical guidance and training to other team members and stakeholders
  • This engineer will bring Extensive knowledge of Linux internals (e.g. PAM, systemd, SELinux) and Windows internals (e.g. SAM, registry, secpol)
  • This engineer will be familiar with DNS concepts and basic networking concepts. Additionally, this engineer will have experience managing headless systems with Power Shell and Bash
Position Benefits

As a full-time employee of Northrop Grumman Space Systems, you are eligible for our robust benefits package including:

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

This position’s 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. This role may offer a competitive relocation assistance package.

Basic Qualifications
  • Principal Cyber Software Engineer:
    Bachelor's degree with 5 years of experience; or Master's degree with 3 years of experience;
    PhD with 1 year of experience or 4 additional year of experience in lieu of degree.
  • Sr Principal Cyber Software Engineer:
    Bachelor's degree with 8 years of experience; or Master's degree with 6 years of experience;
    PhD with 4 years of experience or 4 additional year of experience in lieu of degree.
Required for both levels
  • Must have an active U.S. Government DoD Secret security clearance at time of application, current and within scope, with an ability to obtain and maintain Special Access Program (SAP) approval within a reasonable period of time, as determined by the company to meet its business need.
  • Current Security + or equivalent certification or greater or ability to obtain, within 6 months or less of hire, DoD 8570 / AFMAN 17-1303 qualification at IASAE 2 level.
  • 2+ years of experience in directory services protocols (e.g. LDAP, Kerberos, SAML, OAuth) with experience in integration and implementation
  • 2+ years of experience managing headless systems with Power Shell and Bash
  • 2+ years of experience implementing DISA STIGs on various Operating Systems and platforms.
  • Understanding basic networking principles, including TCP/IP, subnets, routing, and VLAN configurations
  • Proficiency in on-prem virtualization and cloud…
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