Jobs at Sierra Space

Design, develop, test, debug, and document software for spacecraft and space systems. Write maintainable code, collaborate on requirements, participate in code reviews, manage changes with Git, resolve software issues, and apply software development methodologies. Preferred work includes flight software, mission management, payload control, automated testing, static analysis, software design patterns, and open space-system standards.

Oversee full-cycle accounting operations, month- and year-end close, financial reporting, audits, variance analysis, and internal controls. Develop and improve accounting procedures, support compliance, provide business insights, mentor team members, and collaborate with cross-functional stakeholders. The role also drives process improvements, supports organizational change, and serves as a subject matter expert within the accounting department.

Leads national security space business development, capture strategy, pursuit campaigns, strategic partnerships, and growth initiatives. Builds a substantial contract pipeline across Space Force, intelligence, missile defense, space domain awareness, GEO, and on-orbit servicing missions. Maintains senior government relationships, collaborates with technical teams on classified solutions, manages budgets and financial goals, and mentors business development staff. Requires active Top Secret clearance with SCI eligibility and extensive senior leadership experience.

Principal Accountant responsible for complex accounting, financial reporting, project accounting, revenue recognition, and month-, quarter-, and year-end close processes. The role manages reconciliations, accruals, intercompany transactions, audits, internal controls, and GAAP compliance. It also provides financial analysis to senior management, collaborates cross-functionally, resolves technical accounting issues, and mentors junior accounting staff. Familiarity with SAP, CPA certification, and aerospace or public-company experience are preferred.

Leads the enterprise-wide proposal management function, setting strategy, improving processes and win rates, and directing multiple high-value government and commercial pursuits. Builds high-performing teams, develops executive-level narratives and win themes, manages proposal resources and budgets, and advises leadership on competitive positioning and bid decisions. Partners across business development, capture, contracts, pricing, and technical organizations while ensuring compliance, ethical standards, quality, and continuous improvement.

Leads SAP manufacturing and project-based operations, owning configuration, support, integrations, and continuous improvement across PS, PP, MM, QM, and CO. Supports project manufacturing, MRP, capacity planning, production execution, cost planning, WIP, and variance analysis. Partners with cross-functional teams to improve planning, inventory, cost accuracy, and execution. Gathers requirements, creates specifications, configures solutions, and leads unit, integration, and user acceptance testing in a program-driven manufacturing environment.

Designs and develops aerospace tooling, jigs, fixtures, and manufacturing aids using CAD and PLM software. Collaborates with manufacturing and engineering teams on feasibility, design reviews, documentation, validation, and implementation. Supports production troubleshooting, trains technicians and operators, ensures tooling quality and safety compliance, and applies lean manufacturing, Six Sigma, GD&T, and engineering principles to improve manufacturing efficiency.

Develops, writes, and manages federal and military proposal responses. Responsibilities include analyzing solicitations, requirements, evaluation criteria, and costs; coordinating cross-functional inputs; ensuring compliance and deadlines; maintaining templates; editing content; developing win strategies; participating in reviews and debriefs; and mentoring junior team members.

Develop and integrate satellite ground systems for the AMDT3 missile defense program. Responsibilities include decomposing and tracing requirements, developing architectures and concepts of operation, supporting milestone reviews, conducting system integration and verification, managing technical risks, and coordinating with engineering teams, government stakeholders, and subject matter experts. The role requires clear technical communication and adherence to systems engineering processes in a fast-paced, mission-critical environment.

Leads systems engineering for satellite assembly, integration, and testing across engineering test-bed and flight vehicles. Owns requirements derivation, decomposition, allocation, and traceability; drives system integration, verification, risk reduction, technical investigations, milestone reviews, and customer alignment. Develops architectures, manages technical risks, mentors engineers, and contributes to systems engineering policies and processes for a national security space mission.

Leads mission design and analysis engineering teams developing spacecraft mission parameters, trajectories, requirements, simulations, and performance assessments. Integrates mission design with systems engineering, requirements management, verification and validation, risk management, and digital engineering. Manages technical teams, budgets, resources, processes, and cross-functional stakeholder relationships while supporting trade studies and spacecraft and ground-system development. Requires extensive mission analysis experience, managerial leadership, and an active Top Secret clearance with SCI eligibility.

Leads systems engineering for satellite ground systems supporting a national missile tracking program. Responsibilities include requirements derivation and traceability, system architecture, concept of operations, integration, verification and validation, milestone reviews, technical risk management, and performance tracking. The role coordinates cross-functional teams, government stakeholders, and subject matter experts while architecting command-and-control, mission operations, telemetry, data processing, and network infrastructure solutions for ground-to-space mission support.

Develops and integrates complex satellite ground system solutions across the product lifecycle. Responsibilities include decomposing and managing requirements, developing system architectures and concepts of operation, supporting milestone reviews, and overseeing integration, verification, and validation. The role also manages technical risks, tracks performance, ensures compliance with engineering processes, and collaborates with cross-functional teams and subject matter experts. May lead small systems engineering teams and mentor junior engineers.

Designs, develops, tests, and troubleshoots RF systems and components for space-based applications, including antennas, transmitters, receivers, and amplifiers. Performs RF validation, supports systems integration, maintains technical documentation, and collaborates with cross-functional teams. The role requires intermediate electrical engineering knowledge, RF design skills, and the ability to solve complex problems under senior-engineer mentorship.

Designs and develops RF systems and components for space applications, including antennas, transmitters, receivers, and amplifiers. Supports RF system testing, validation, integration, documentation, and performance compliance. Works under experienced engineers’ guidance while collaborating with cross-functional teams, using electrical design tools and measurement equipment. The role emphasizes learning, attention to detail, technical traceability, and applying emerging RF engineering technologies.

Designs, develops, integrates, and validates spacecraft guidance, navigation, and control systems. Responsibilities include GNC algorithm design, dynamic modeling, Monte Carlo simulations, stability analysis, sensor and actuator modeling, HITL testing, flight-mode ownership, requirements integration, and technical leadership. The engineer also mentors junior staff and supports closed-loop GNC and FDIR subsystem development.

Supports the design, execution, and documentation of RF, communications, software, environmental, and integrated-system tests for aerospace systems. Uses RF instrumentation, EGSE, LabVIEW, Python, MATLAB, and data acquisition tools to validate spacecraft and related systems. Interprets schematics, troubleshoots test issues, prepares procedures and reports, supports verification and validation, and contributes to quality assurance and non-conformance activities. Requires 5+ years of experience and the ability to obtain and maintain a Top Secret clearance.

Leads aerospace system and component testing, including test planning, procedures, reports, requirements management, systems integration, and Verification and Validation activities. Troubleshoots complex issues using schematics, service manuals, testing equipment, and logical analysis. Manages test-related nonconformances, documents technical findings, supports multidisciplinary teams, and guides less experienced engineers while ensuring compliance with system requirements and quality standards.

Supports the development and analysis of materials for aerospace systems under senior engineer guidance. Applies foundational materials science principles, standards, and theories to routine technical problems; prepares technical data, reports, and presentations; participates in technical reviews and cross-functional meetings; and communicates technical information while developing engineering expertise.

Provide technical vision and architectural leadership for major aerospace programs: define system architecture and standards, conduct feasibility and trade studies, develop technology roadmaps, advise program leadership, drive reusable design patterns and standardization, participate in early-phase proposals and milestones, and translate strategic vision into executable architectures that meet mission objectives.