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Salary
≈ $124k – $248k per year (Estimated)
Location
Hybrid (Plano, United States)
Seniority
Principal · 14+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Oct 23, 2026. Sierra Nevada Corporation scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Sierra Nevada Corporation is a privately held American aerospace and defence contractor founded in 1963 and bought in 1994 by Fatih and Eren Ozmen, who still own it. It modifies and integrates special mission aircraft for the United States military and allied governments, builds navigation, communications and electronic warfare systems, and holds the contract to convert Boeing 747 airframes into the next presidential aircraft under the Survivable Airborne Operations Center programme. Headquartered in Sparks, Nevada, the company spun out its space business as Sierra Space in 2021 and remains one of the larger privately owned defence integrators in the country.
Do you enjoy developing new products and services? Join us! Our Software Engineers work in an agile, collective environment. As a Principal Software Engineer, you will provide technical leadership and strategic direction for the development and optimization of advanced software systems for aerospace applications. You will lead major projects, mentor engineering teams, and drive innovation to achieve superior software performance.The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and unmanned aircraft systems integrator for innovative, high-performance ISR and aviation systems. Its end-to-end Command, Control, Computers, Communications and Intelligence, Surveillance & Reconnaissance (C4ISR) capabilities encompass design, integration, test, certification, ground/flight training and complete logistics support. IAS tailors solutions to customer cost, performance, and schedule requirements and designs to consistently exceed expectations - with an unrivaled record of on time and on (or under) budget deliveries.

Responsibilities:

  • Provide technical leadership and direction for the development of advanced software systems.
  • Collaborate with cross-functional teams to ensure software meets performance, quality, and regulatory standards.
  • Lead the creation and maintenance of detailed software documentation, including design specifications and user manuals.
  • Mentor and guide engineering teams on technical best practices and innovation.
  • Conduct high-level code reviews and provide strategic feedback.
  • Define and implement software requirements and specifications in collaboration with stakeholders.
  • Drive major continuous improvement initiatives to enhance software performance and reliability.
  • Represent the software engineering function in high-level strategic meetings and decision-making processes.

Qualifications You Must Have:

  • Bachelor's degree in Computer Science, Software Engineering, or related field; Master's degree preferred.
  • 14+ years of experience in experience in software development.
  • Higher level relevant degree may substitute for experience.
  • Expert proficiency in programming languages such as C++, Java, or Python.
  • Extensive leadership experience in software development.
  • Demonstrated knowledge of engineering principles and practices.
  • Experience working in multi-disciplinary teams.
  • Apply extensive expertise in software and equipment architecture/design development, technical monitoring, and lifecycle management.
  • An active Secret with the eligibility to obtain a Top Secret / Top Secret with SCI eligibility U.S. Security Clearance is required.

Qualifications We Prefer:

  • Expertise in advanced software technologies (e.g., AI, machine learning, cloud computing).
  • Experience with real-time operating systems (RTOS) and embedded systems.
  • Significant experience in the Aerospace and Defense industry.
  • Understanding of industry standard software languages such as C, C#, C++, HTML, Java, Python, and Bash.
  • Experience with software tools for requirements tracking, code reviews, static analysis, library and artifact repository, and automated build.
  • Knowledge of software development methodologies such as Agile/Scrum, Waterfall, and Spiral.
  • Proficient with data structures.
  • Experience using the Open Mission System messaging protocol and Universal Command and Control Interface standards.
  • Experience supporting mission system architectures and capabilities
  • Experience applying systems engineering principles to software-based solutions.
  • Solid Understanding of various Air Frames, Air Vehicle sub-systems and general operation a plus.

Essential Functions:

  • Ability to work on a computer for extended periods.
  • Hand/finger dexterity for coding and testing.
  • Ability to work in a hybrid environment with occasional travel.

This posting will be open for application for a minimum of 5 days and may be extended based on business needs.

SNC offers annual incentive pay based upon performance that is commensurate with the level of the position.

SNC offers a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, tuition reimbursement, and more.

IMPORTANT NOTICE:

This position requires current/active Top Secret with SCI eligibility U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment. Non-U.S. Citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations and illegal drug use.

Learn more about the background check process for Security Clearances.

SNC is a global leader in aerospace and national security committed to moving the American Dream forward. We’re known and respected for our mission and execution focus, agility, and disruptive and rapid innovation. We provide leading edge technologies and transformative solutions that support our nation’s most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team!

SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employment decisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran or other characteristics protected by law.

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