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Sr Software Systems Engineer

Sierra Space

Louisville, CO | Centennial, US$157k – $215konsite

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About this role

Sierra Space Careers: 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. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.  

Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space.

We are mission-driven, and together, we are an extraordinary team.

About the Role The Sr. Software Engineer role involves designing, developing, and testing software applications for space systems and technologies. This advanced position requires deep expertise in multiple programming languages, an advanced understanding of software development principles, and the ability to design, architect, and implement complex software systems. The role includes writing clean, maintainable code, collaborating with team members to understand project requirements, and contributing to the development of innovative software solutions. Additionally, this position may involve providing technical leadership, mentorship, and making high-level design decisions that significantly impact program cost, schedule, and technical performance.

In this role, you will design, develop, and test software applications for space systems and technologies while writing clean, maintainable code that adheres to best practices and coding standards. You will architect and implement complex software systems to meet project requirements and collaborate with team members to understand project needs, contributing to the development of effective software solutions. Utilizing version control systems such as Git, you will manage code changes and work collaboratively with team members. You will participate in code reviews to ensure code quality and adherence to development standards, troubleshoot and resolve software-related issues in a timely manner, and document software configurations, processes, and procedures for future reference. Staying current with industry trends and advancements in software development and space technologies will be essential. Additionally, you will provide technical leadership, mentorship, and support to team members, making high-level design decisions that have significant impacts on program cost, schedule, and technical performance. About You Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower – to join us in this critical mission.  

We’re looking for team members who align with our values, mission and 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 +6 yrs experience).

• Typically, 8+ years of related experience.

• Deep expertise in multiple programming languages and software development principles.

• Ability to design, architect, and implement complex software systems.

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

• Strong leadership skills to lead a team of engineers.

• Ability to make high-level design decisions that will have significant impacts on program cost, schedule, and technical performance.

Preferred Qualifications: • Demonstrated experience managing requirements, feature definition, and test criteria for satellite ground software systems.

• Strong understanding of spacecraft systems and classified enterprise ground systems, including hardware and software subsystems.

• Knowledge of satellite ground software standards and message flows (CCSDS, OMS/UCI).

• Experience with Requirements Management and Model-Based Systems Engineering tools (DOORS, CAMEO EA, Rhapsody, Matlab, SysML).

• Proficiency in programming languages (Python, C++, C#) and scripting for automation.

• Solid software development foundation with experience in modern programming languages and practices.

• Knowledge of Agile methodologies and DevSecOps practices.

• Familiarity with containerization, orchestration platforms, and cloud technologies.

• Strong understanding of project management methodologies, including risk management and technical performance tracking.

• Solid grasp of technical baseline and configuration management practices.

    Compensation :

Pay Range: $156,666.00 - $215,436.75 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.

IMPORTANT NOTICE: To conform to U.S. Government international trade regulations, applicant must be a U.S. Citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State or U.S. Department of Commerce.

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.    We also offer 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, and more.

Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technol

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