Sr. Principal Cyber Software Engineer

Posted 3 Days Ago
Be an Early Applicant
Cincinnati, OH, USA
In-Office
142K-213K Annually
Senior level
Aerospace • Logistics • Security • Software • Cybersecurity
The Role
Develop and analyze secure software for national security systems: kernel-mode and embedded programming, reverse engineering, vulnerability analysis, low-level networking (TCP/IP, UDP), and use of debugging and RE tools. Work includes network protocol development, exploit/ROP understanding, and SDLC practices on multiple OS environments.
Summary Generated by Built In
RELOCATION ASSISTANCE: Relocation assistance may be available

CLEARANCE REQUIRED FOR START: Yes

CLEARANCE TYPE: Top Secret

TRAVEL: Yes, 10% of the TimeDescription

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.

Come join Northrop Grumman Xetron, part of the Mission Systems sector, where we develop new capabilities for our military and intelligence customers around the globe. At Xetron we design systems that only science fiction writers could imagine, because they’re that cool!

Xetron is an operating unit of the Northrop Grumman Corporation, located in Cincinnati, Ohio where employees have the chance to know everyone on site while working on cutting‑edge technologies and high‑impact products. You’ll tackle the next generation of challenging problems, share expertise, and learn from world‑class teammates. Remember when you were excited about the challenge of the problem, the importance of the solution, and the fun you had with your team? You’ll experience that at Xetron! See why we receive comments on our YouTube Videos like “This company is insanely advanced” and “Wow. This is mind blowing.” 

We are seeking cleared mid-level Software Engineers who are self‑motivated and energetic, with a background in Computer Engineering, Computer Science, or related technical disciplines.

Responsibilities:

This position involves developing solutions to national security threats with products that may involve kernel development, reverse engineering, or vulnerability research of network and communication systems. The position requires solid software development skills, including familiarity with scripting languages. Knowledge of computer networking, modern software development environments, embedded programming, and software configuration management tools is a plus.

Essential Functions:

  • Kernel Mode (Windows, Linux) programming (C/C++, Assembly)
  • Reverse Engineering (x86, x64, MIPS, PPC, or ARM)
  • Vulnerability Analysis
  • Communications Engineer:
    • Network Programming (C/C++)
    • Network protocols TCP/IP, UDP, HTTP, SSL, etc...
  • Infrastructure Engineer

Basic Qualifications for Sr. Principal Cyber Software Engineer Level:

  • B.S. degree in Computer Science, Computer Engineering or related field and 8 years of programming experience; or M.S. degree in Computer Science, Computer Engineering or related field and 6 years of programming experience or Ph.D and 4 years of relevant work experience.
  • US Citizenship is required
  • Active Top Secret clearance is required
  • Demonstrated software programming experience in C/C++
  • Experience with SDLC (software development life cycle)
  • Experience in software development to include any of the following: kernel mode, embedded, command and control, network applications
  • Development of lower-level networking protocols such as TCP/IP and UDP
  • Understanding of return-oriented programming (ROP) concepts and execution
  • Experience with debugging or system analysis tools (e.g., Wireshark, IDAPro, OllyDebug, WinDBG, JTAG debuggers)

Preferred Qualifications:

  • Active SCI security clearance
  • Experience as Technical Lead leading teams of 2-8 engineers
  • Advanced degree in Computer Science, Computer Engineering, or related field
  • Experience developing software for multiple operating system environments
  • Experience with vulnerability research on one or more operating systems (Android, IOS, Windows, Linux, etc.).
  • Familiarity with Assembly Languages (e.g., x86, x64, MIPS, PPC, or ARM)
  • Understanding of secure / insecure programming concepts (format string vulnerabilities, heap overflows, etc.)
  • Experience with emulation (Renode, QEMU, etc.)
  • Experience with reverse engineering compiled binaries using industry-standard tools such as Ghidra or IDA Pro.
  • OS Internals experience
  • Experience with virtual machine technology
  • Ability to develop and implement shell code.
  • Familiarity with modern source control platforms (e.g., Git, GitHub, GitLab) and CI/CD workflows using tools such as Jenkins, GitHub Actions, and GitLab CI.
  • Experience with the Agile methodology

This position offers the option of a 9/80 work schedule. The 9/80 schedule allows employees who work a nine-hour day Monday through Thursday to take every other Friday off.

Primary Level Salary Range: $142,200.00 - $213,200.00

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.

Skills Required

  • B.S. in Computer Science, Computer Engineering or related and 8 years programming experience OR M.S. and 6 years OR Ph.D. and 4 years
  • U.S. Citizenship
  • Active Top Secret security clearance
  • Demonstrated software programming experience in C/C++
  • Experience with SDLC (software development life cycle)
  • Experience in software development including kernel mode, embedded, command and control, or network applications
  • Development experience with lower-level networking protocols such as TCP/IP and UDP
  • Understanding of return-oriented programming (ROP) concepts and execution
  • Experience with debugging or system analysis tools (e.g., Wireshark, IDA Pro, OllyDbg, WinDBG, JTAG debuggers)
  • Kernel mode (Windows, Linux) programming experience (C/C++, Assembly)

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.

  • Retirement Support 401(k) matching is considered strong, with additional defined-benefit coverage for certain cohorts and options like catch-up contributions. Retirement programs are repeatedly highlighted as a core strength of the total rewards.
  • Leave & Time Off Breadth PTO, company-paid holidays, and compressed work schedules (such as 9/80) provide meaningful time away and flexibility. These scheduling options are cited as a major quality-of-life benefit across many locations.
  • Parental & Family Support Paid parental leave alongside caregiver leave, adoption assistance, and back-up care supports a range of family needs. These programs have been expanded recently, signaling continued investment in family support.

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The Company
HQ: Charlotte, North Carolina
85,636 Employees

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.

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