Principal​/Sr Principal Cyber Software Engineer

Relocation Assistance

Relocation assistance may be available.

Clearance for start:
Yes. Clearance type:
Polygraph.

Travel:
Yes, 10% of the time.

Northrop Grumman Mission Systems is seeking an experienced Principal / Senior Principal Cyber Software Engineer to join our team supporting a program in the Signals Intelligence Mission Solutions (SMS) Department. This position will be located at a Mission Systems Sector site in Fairfax, VA.

• Develop and deliver software to meet mission partner requirements.
• Develop both user and developer-level documentation.
• Participate in setting the team’s technical direction in alignment with operational requirements and the sponsor’s technical roadmap.
• Collaborate with the team to review and improve processes (development, test, governance, stakeholder interactions).
• Communicate project status, roadblocks, technical and process proposals to the team and stakeholders.
• Prioritize development efforts with mission partners.
• Define the complexity, scope, and resources needed to integrate new requirements.

• Active Top Secret / SCI security clearance with poly to be considered; TS/SCI with poly eligibility must be in place by the start date and must remain through employment.
• Minimum 5 years of experience with a Bachelor’s in Science; or 3 years with a Master’s; or 1 year with a PhD.
• Proficient in C#, C++, or
  
  C.
• Experience developing using .NET Framework on Windows.
• Experience with Python or Ruby scripting languages.
• Experience developing software on Agile teams with a strong track record of delivering solutions.
• Knowledge of software development life cycle.
• Strong creative problem‑solving and troubleshooting skills.
• Strong collaborative team skills.

• Active Top Secret / SCI security clearance with poly to be considered; TS/SCI with poly eligibility must be in place by the start date and must remain through employment.
• Minimum 8 years of experience with a Bachelor’s in Science; or 6 years with a Master’s; or 4 years with a PhD.
• Proficient in C#, C++, or
  
  C.
• Experience developing using .NET Framework on Windows.
• Experience with Python or Ruby scripting languages.
• Experience developing software on Agile teams with a strong track record of delivering solutions.
• Knowledge of software development life cycle.
• Strong creative problem‑solving and troubleshooting skills.
• Strong collaborative team skills.

• Knowledge of radio frequency (RF) and/or satellite/terrestrial communications systems and techniques.
• Experience with Real‑Time Operating Systems, particularly Zephyr RTOS.
• Experience developing software for embedded systems using C/C++.
• Experience with scripting languages such as Python, Power Shell, or Perl.
• Experience with Java programming language.
• Experience with Xilinx software.
• Experience working with Microsoft Azure Dev Ops for CI/CD pipelines, work item tracking, and project management.
• Experience writing software design documentation with Doxygen or other documentation tools.
• Familiarity with Git version control system.

Northrop Grumman provides a comprehensive benefits package that includes health planning, savings plan, paid time off, education assistance, training and development, a 9/80 work schedule where available, and additional benefits. Employees may also receive paid holidays and additional time off.

Primary Level Salary Range: $ – $.

Secondary Level Salary Range: $ – $.

The above salary range is a general guideline; other factors such as the scope and responsibilities of the position, candidate experience, education, skills, and market conditions are considered. Employees may also be eligible for overtime, a shift differential, a discretionary bonus, or long‑term incentives for VP or Director positions.

Northrop Grumman is an Equal Opportunity Employer. The organization makes decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or other protected classes. U.S. citizenship is required for all positions with a government clearance and certain other restricted positions. For our complete EEO and pay transparency statement, please visit: