Principal Cyber Software Engineer

Duties will include but are not limited to planning, executing, and reporting cyber test activities to develop artifacts in support of authorization packages. The Principal Cyber Software Engineer will perform cyber-attack path analysis of system architectures and develop scripts to automate processes to support this analysis. Periodic travel to operational or development sites is anticipated to perform & support cyber test activities.
Responsibilities include:

Perform cyber testing, verification, and validation

Validate system security requirements definition and analysis, establish system security designs, implement security designs in hardware, software, data, and procedures

Develop software test scripts to support cyber test activities

Participate in team reviews of technical requirements, designs and implementation plans prior to deployment of systems, digital communications systems, network protocols, computer architectures, and computer security penetration tools and techniques

Provide cyber security implementation guidance to technical design teams and develop testing use cases to meet requirements and architecture model content.

Ensure weapon system compliance with all contractually obligated cybersecurity standards and guidance, including but not limited to CNSSI 1253, DoD 8140, DoD 8510, and AFI 17-101

Ensure weapon system assessments are completed to meet all contractually obligated cybersecurity standards and guidance, including but not limited to RMF and cyber survivability requirements

Solve complex problems across disciplines in an Agile environment

Basic Qualifications:

Bachelor's Degree and 5 years of related experience; or a Master's degree and 3 years of related experience. Note:9 years of related experience may be considered in lieu of degree.

US Citizenship is required

Active Department of Defense (DoD) Top Secret Security Clearance is required to be considered with the ability to obtain SCI and SAP access

Must possess a DoD 8570 Certification for IAT Level II or higher or ability to obtain the certification within six months of hire.

Experience with reverse engineering

Strong Python programming language experience and experience with other programing languages

Experience in software development to include any of the following: kernel mode, embedded, command and control, web applications, network applications

Preferred Qualifications:

Prior experience as an Offensive Cyber Operator (Red Team, CNO, CNE, or OCO) preferred (i.e. graduate of Computer Network Operations Qualification Course (CNOQC), Remote Interactive Operators Training (RIOT) and Future Operator Readiness, Growth & Enrichment Course (FORGE)).

Possess a Cybersecurity certification related to Red Teaming/Penetration Testing: GPEN, GXPN or OSCP.

Development of lower-level networking protocols such as IP, TCP, and UDP

Ability to understand secure / insecure programming concepts (format string vulnerabilities, heap overflows, etc.)

Familiarity with common source control tools (git, Mercurial, etc.) and automated build system workflows (Jenkins, Go, etc.)

Primary Level Salary Range: $113,900.00 - $170,900.00The 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.

Client-provided location(s): San Antonio, TX

Job ID: NorthropGrumman-R10217271

Employment Type: OTHER

Posted: 2025-12-20T20:08:19