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Software Engineer III

Sierra Nevada Corporation
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Lone Tree, CO, USA
Jul 29, 2026
Do you enjoy developing new products and services? Join us! Our Software Engineers work in an agile, collective environment. As a Software Engineer III, you will contribute to the design, development, and optimization of software systems for advanced aerospace applications. You will work with cross-functional teams to ensure software meets performance and quality standards.

Our team develops cutting edge mission software deployed on numerous military and civilian aircraft platforms. The software product you will work on has an exciting and long history of providing valuable capabilities to our customers quickly to enable them to accomplish their missions. There is new feature development, as well as maintaining existing features as new systems and software needs are evolving. In this role, you will have the opportunity to contribute to full stack development and integration of the product while working with a multi-disciplinary team.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:

  • Design, develop, and test software components for aerospace systems.

  • Debug and troubleshoot complex software issues.

  • Write and maintain comprehensive code documentation.

  • Collaborate with team members to ensure code quality and adherence to standards.

  • Conduct code reviews and provide constructive feedback.

  • Support the integration of software with hardware systems.

  • Participate in the development of software requirements and specifications.

Qualifications You Must Have:

  • Bachelor's degree in Computer Science, Software Engineering, or related field.

  • 6 years of experience in experience in software development.

  • Higher level relevant degree may substitute for experience.

  • Proficiency in programming languages such as C , Java, or Python.

  • Knowledge of engineering principles and practices.

  • Familiarity working in multi-disciplinary teams.

  • Ability to obtain/maintain a Secret U.S. Security Clearance is required.

Qualifications We Prefer:

  • Knowledge of real-time operating systems (RTOS).

  • 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.

  • Basic understanding of data structures.

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.

Estimated Starting Salary Range: $108,496.89 - $149,183.22. Compensation varies depending on a wide array of factors, such as candidates' key skills, relevant work experience, and education/training/certifications. The disclosed range estimate may be adjusted for any applicable geographic differential associated with the location at which the position may be filled.

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 the ability to obtain and maintain a Secret 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.

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.

Job ID

R0029440

Security Clearance

Top Secret
About Sierra Nevada Corporation

At SNC, we take an entrepreneurial approach to meeting our customers’ needs by developing innovative technological solutions in a rapid and agile production environment. For our employees, SNC strives to cultivate professional growth at every career stage. We believe in positive attitudes, sense of urgency, team-play, purpose, fire-in-the-belly passion, work-life balance, collaboration, humility, persistence, discipline and trust as accelerators of productivity and fulfillment.

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