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Sr Software Engineer (Contractor, Clearance Required)

Sierra Space
life insurance, paid time off, 401(k)
United States, Colorado, Centennial
Nov 08, 2025
Sierra Space Careers: Dare to Dream

We honor those that are not afraid to dream big dreams, those that tenaciously chase their dreams even when others say it cannot be done, those that achieve big dreams and change everything. Those are Dreams Worth Chasing.

At Sierra Space we envision a future where humanity lives and works in space, on moons, and on distant planets. Our mission isn't restricted to the few, instead we see a future where all people can choose to live, work, discover and explore beyond our planet. Our company is building a platform in space to benefit life on Earth and together we will alter the course of humanity.

We have a bold mission. We are a bold company. Together, we are an extraordinary team.

About the RoleDo you enjoy developing new products and services? Join us! Our Software Engineers work in an agile, collective environment. You will be using your skills and expertise to define, design, develop, test, certify and improve cutting-edge software products. These cover a very wide range from advanced mission payloads and electronic systems through highly integrated aircraft to orbital and space exploration systems. You'll perform coding, debugging, testing, and troubleshooting of systems and software throughout our development process. Your technical duties involve the design and development of new software products throughout the product lifecycle. About You

Our mission is driven by the unwavering passion to push the boundaries of what is possible. We seek those who Dare to Dream - to envision the extraordinary and pursue it relentlessly - to join us on this transformational journey.

We're looking for dreamers who align with our values, vision and audacious goals - while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.

Minimum Qualifications:

  • Requires bachelor's degree in a related field (or equivalent work experience in lieu of degree or master's +6yrs experience).

  • Typically, 8+ years of related experience.

  • Expertise in one to multiple programming languages and advanced understanding of software development principles.

  • Ability to design and architect complex software systems.

  • Experience with different software development methodologies such as Agile and Scrum/Kanban.

  • Strong problem-solving skills.

  • Ability to mentor and guide other engineers

  • An active Secret U.S. Security Clearance is required

Preferred Qualifications:

  • Hands-on experience with the Open Mission Systems (OMS) and Universal Command and Control Interface (UCI) standards.

  • Advanced expertise in requirements management and system modeling tools, such as No Magic Cameo.

  • Proven experience in software architecture, including functional decomposition, interface definition, and software design.

  • Strong understanding and practical application of software design patterns.

  • Experience in creating detailed software interface control documents and algorithm description documents.

  • Proficiency in developing and managing requirements using advanced modeling techniques.

  • In-depth knowledge of industry-standard design principles, including but not limited to requirements management and Model-Based Systems Engineering (MBSE).

  • Certification or practical experience with International Council on Systems Engineering (INCOSE) standards.

  • Solid background in the Aerospace and Defense industry.

  • Familiarity with defining and tracking key Technical Performance Measurements (TPMs) to ensure project success.

  • Demonstrated experience in defining and developing test cases based on architectural documentation and system requirements.

Compensation:

Pay Range:

Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education,experience, internal equity and market competitiveness.

$73.48 - $101.00 per hour

IMPORTANT NOTICE:

This position requires current/active 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.

Elevate Your Career

At Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.

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

We also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 8%, life insurance, 3 weeks paid time off, and more.

At Sierra Space we are at the very doorstep of unlocking the future and the work in front of us is hard, but it is truly important and meaningful. Achieving our mission requires dedication, relentless pursuit of a dream and an unwavering passion for pushing the boundaries to accomplish what others might believe to be impossible. We seek those who too, Dare to Dream and will join us in a pursuit to achieve the extraordinary.

Application Deadline: This role will remain posted until a qualified pool of candidates are identified.

Sierra Space Corporationis an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment withSierra Spaceor at any stage of the recruitment process, pleasecontact us.

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