Sr Software Engineer; Contractor

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At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today.

Our Software Engineers work in an agile, collective environment. You will use your skills and expertise to define, design, develop, test, certify, and improve cutting‑edge software products. These cover a 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.

Technical duties involve the design and development of new software products throughout the product lifecycle.

We seek individuals who are passionate about innovating beyond boundaries, relentlessly pursuing solutions that protect, preserve, and empower. We want team members who align with our values, mission, and goals and who meet the minimum qualifications below. Preferred qualifications are a bonus, not a requirement.

• Requires bachelor's degree in a related field (or equivalent work experience in lieu of a degree or master's + 6 years experience).
• Typically, 8+ years of related experience.
• Expertise in one or 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.
• The ability to obtain and maintain a Secret U.S. Security Clearance is required.

• 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.

Pay Range: $73.48 – $101.50/hr 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.

This position requires the ability to obtain and maintain a Secret U.S. Security Clearance. U.S. Citizenship 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) handles the adjudicative aspects of the security clearance eligibility process for industry applicants.

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.

This role will remain posted until a qualified pool of candidates is identified.

Sierra Space Corporation is 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 with Sierra Space or at any stage of the recruitment process, please contact us.

• Mid‑Senior level

• Full‑time

• Engineering and Information Technology

• Aviation and Aerospace Component Manufacturing