Jobs at Sierra Space

The Sr Systems Engineer leads the development and integration of advanced systems solutions, ensuring alignment throughout the product lifecycle while managing requirements and technical risks.

The Senior Manager of Software Engineering leads ground software development for satellite programs, managing teams and projects, ensuring alignment with strategic objectives and overseeing comprehensive testing processes.

Lead mechanical design, analysis, integration, and testing for propulsion and related systems. Manage system/component development, perform trade studies, interpret test/simulation data, produce technical documentation, represent the organization on projects, and mentor junior engineers to meet performance and safety requirements.

Install, inspect, test, adjust, and repair avionics equipment and systems. Perform equipment setup, precision measurement and fixture fabrication, precision cleaning and chemistry processes, and apply shop best practices (5S, FOD, ESD). Follow PPE and handling requirements, document findings, and collaborate to ensure workmanship and schedule adherence.

Lead design, development, modification, and evaluation of complex electrical and avionic systems (power, control, EWIS, CD&H). Conduct tests and simulations, perform trade studies, manage requirements and V&V, troubleshoot systems, document results, mentor junior engineers, and act as technical lead on specialized projects ensuring design integrity and compliance with industry standards.

The Principal Systems Engineer leads advanced system solutions development, guiding teams through the product lifecycle and ensuring system integration, verification, and alignment with project objectives.

Design, analyze, and own mechanical/structural engineering packages for spacecraft systems. Serve as Responsible Engineer, produce technical documentation, mentor junior engineers, and coordinate with stakeholders to meet program requirements, schedules, and budgets.

The Principal Mechanical Engineer leads design and analysis projects, manages system and component integration, mentors engineers, and drives innovation within cross-functional teams, ensuring successful project execution.

Lead design and development of complex electrical harnesses and avionics systems (Harness 3D), perform tests and simulations, troubleshoot and improve existing systems, document designs and test results, mentor junior engineers, act as technical lead on specialized projects, and support systems integration, V&V, trade studies, and program CAM activities.

Lead multi-discipline production teams for satellite and spacecraft systems, translate functional plans into operational objectives, manage budgets, drive large cross-functional projects, support organizational change, and interact with executive leadership to ensure delivery and compliance with industry standards.

Lead design, development, modification, and evaluation of complex electrical and avionic systems (CD&H, power, control, EWIS). Perform tests and simulations, validate performance, document results, troubleshoot, and provide advanced technical support. Mentor junior engineers, act as technical lead on specialized projects, participate in system integration, V&V, requirements management, and trade studies to guide subsystem architecture decisions.

Design, develop, test, and maintain complex software systems for space systems. Write clean code, participate in code reviews, use version control, troubleshoot issues, document configurations, and provide technical leadership and mentorship impacting program cost, schedule, and performance.

Support spacecraft and launch vehicle processing and ground operations: author and validate MES procedures, perform integration, propellant and hazardous operations, execute checkouts, maintain clean-room protocols, verify launch provider and range safety compliance, document anomalies and lessons learned, coordinate across engineering, quality, supply chain, and external stakeholders, and travel to support campaign execution.

Lead and execute enterprise quality assurance strategy, oversee QA teams and release decisions, manage CAPA/deviations, change control, validation, audits, supplier quality, and regulatory compliance (FDA/ISO/GxP). Use metrics, risk management, and continuous improvement (Lean/Six Sigma) to drive quality culture, ensure product integrity, and align QA with business objectives and budgets.

Support senior engineers on mechanical, propulsion, structures, or environmental systems projects. Collect and analyze data, assist with design and evaluation, resolve routine technical issues, prepare technical documentation and reports, and collaborate within cross-functional teams while communicating technical concepts clearly.

Execute and develop advanced manufacturing processes for space products. Set up, operate, and train on production processes; resolve production issues; evaluate non-conforming parts; run process development and validations; support product transition to full-scale production and continuous improvement.

Design, implement, and evaluate spacecraft GNC algorithms and FDIR; model sensors/actuators; run and analyze Monte Carlo simulations; validate GNC flight software in simulation; own performance requirement analyses and communicate results.

Designs and analyzes mechanical components and systems (propulsion, structures, environmental). Collects and analyzes data, prepares technical documentation, supports program milestones, and delivers solutions for moderate-complexity engineering problems while collaborating with cross-functional teams and occasionally communicating with external stakeholders.

Intern will support mechanical design and testing for spacecraft systems: develop CAD models, perform thermal and stress analysis, prototype and select materials, document results, and assist hardware testing using tools such as MATLAB. Internship runs Sep–Dec 2026 and includes mentorship and cross-functional development.

Lead and manage a program (or IPT/portfolio) under $100M, owning cost, schedule, technical performance. Develop program plans, budgets, and reports; monitor metrics; implement corrective actions; interface with finance, supply chain, engineering, and external customers; mentor junior managers and drive program strategy and learning initiatives.