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 Systems Engineer II contributes to the development and implementation of advanced ground system solutions supporting the Space Development Agency's Accelerated Missile Defense Tranche 3 (AMDT3) program, providing alignment, connection, and direction to the technical team throughout a fast-paced, mission-critical development lifecycle. The Systems Engineer II represents the viewpoint of the integrated whole during ground system development and works to glue segments and subsystems together via top-down decomposition of stakeholder requirements, traceability through development artifacts, and bottom-up validation and verification of the system, all in support of an aggressive schedule to get critical missile defense capability on orbit quickly. They help shepherd the team through technical development milestones, track performance measures, and identify technical risks early so they can be addressed quickly, arriving at a compliant and cohesive ground system solution without sacrificing schedule velocity. The Systems Engineer II should have a firm grasp of Systems Engineering principles and is building expertise in specific systems engineering skills such as requirements management, system architecture development, concept of operations definition, system integration, and system verification. Exposure to ground system elements (e.g., command and control, mission operations, data processing, and network/communications infrastructure) that interface with the space segment is a plus. The Systems Engineer II brings energy, curiosity, and adaptability to a high-tempo program that values rapid iteration and the drive to contribute immediately. In this role, you will specify, architect, and integrate complex ground system solutions while collaborating with cross-functional teams, government stakeholders, and subject matter experts to understand project requirements and objectives under compressed timelines. You will derive, decompose, allocate, trace, and manage ground system requirements and architectures, as well as define and document concepts of operation for ground-to-space mission support. Supporting development milestone reviews by creating artifacts and deliverables will be a key responsibility, alongside participating in system integration and verification activities to ensure ground system functionality, performance, and readiness to support on-orbit operations. You will identify and manage technical risks, help develop and execute mitigation strategies, and contribute to continuous improvement initiatives that keep pace with program velocity. Adhering to established engineering processes and standards, while pragmatically streamlining where appropriate with guidance from senior engineers, will be essential. You will communicate effectively and proactively with team members, customers, and stakeholders to ensure alignment and successful execution in support of this nationally critical missile defense mission. 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). Typically 2+ years of related experience. Practical understanding of Systems Engineering principles and practices, including a basic understanding of the systems development lifecycle. Conceptual knowledge of requirements management, functional requirements parsing, derivation, and allocation. Conceptual knowledge of systems architecture, systems integration, and Verification and Validation (V&V) principles. Clear verbal and written communication of technical concepts and information. The ability to obtain and maintain a Secret U.S. Security Clearance is required. Preferred Qualifications: Master's degree in Engineering, Physics or a related field. Experience with Requirements Management and Model Based Systems Engineering tools and frameworks, such as DOORS, CAMEO EA, Rhapsody, Matlab, and SysML. Understanding of ground systems architecture, including command and control, telemetry processing, data management, and network infrastructure subsystems. Experience creating, managing, and executing test plans for ground systems, including integration testing, end-to-end testing, and operational readiness validation. Background in software systems engineering and integration test (SW SEIT) for complex ground systems. Familiarity with project management methodologies including risk management and technical performance tracking. Familiarity with technical baseline and configuration management. Experience or certification in INCOSE standards. Excellent problem-solving skills and attention to detail. Ability to adapt to a fast-paced and dynamic work environment. An active Secret U.S. Security Clearance Compensation: Pay Range: $94,090.00 - $129,394.75 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: 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. 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 technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration. Application Deadline: This role will remain posted until a qualified pool of candidates is identified. Please note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees. 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. About Sierra Space Headquartered in Colorado, Sierra Space is a mission-proven Defense Tech company delivering satellite platforms, critical subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, and infrastructure for the nation’s most critical missions. With more than three decades of heritage and a record of flight-proven success in space, Sierra Space is trusted by U.S. National Security, Civil customers, and global allies. Our technologies safeguard our nation, sustain human exploration in space, and ensure the freedom of operations beyond Earth. Sierra Space is defining the new era of Space Defense, strengthening deterrence today and preserving freedom of action for generations to come.

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