Jobs at Sierra Space

Develops and integrates complex spacecraft and mission systems through requirements decomposition, architecture development, concept of operations, system integration, verification, and validation. The role supports technical milestone reviews, manages risks and performance measures, ensures configuration and process compliance, and collaborates with cross-functional engineering teams. It may lead small systems engineering teams and mentor junior engineers.

Design, implement, and evaluate spacecraft GNC algorithms and FDIR. Develop SIMULINK/STK simulations, model sensors/actuators, run Monte Carlo analyses, validate GNC flight software, ensure requirement compliance, and communicate technical results to stakeholders.

Leads medium-sized aerospace engineering projects and cross-functional teams from design through execution. Oversees technical integration, trade studies, supplier management, cost and schedule control, risk management, quality, estimates, and stakeholder communication. Provides technical mentorship, supports proposals and contracts, tracks key performance indicators and technical performance metrics, and serves as a bridge between Engineering and Program Management while driving innovation and continuous improvement.

Supports verification and validation testing of aerospace systems and components. Assists with test planning, execution, troubleshooting, documentation, test data analysis, and disposition of product non-conformances. Collaborates with multidisciplinary teams under senior engineering guidance, applies engineering and quality principles, and prepares technical reports and communications supporting system integration and project milestones.

Lead the development and integration of advanced GNC systems for spacecraft. The role involves designing algorithms, subsystem integration, and ensuring technical excellence across multiple aerospace projects.

Creates and modifies complex 3D component and assembly models, detailed CAD drawings, and configuration-management records. Performs design checks, identifies inconsistencies, applies GD&T and MBSD standards, and proposes modifications to improve product quality and functionality. Collaborates with engineers to resolve design issues and develop aerospace components while maintaining PLM documentation and organized design data.

Manages complex procurement orders, negotiates supplier terms, evaluates supplier performance, maintains supplier relationships, and ensures procurement documentation complies with company policies. Identifies cost-saving opportunities, monitors market trends, coordinates with leadership and external personnel, and uses SAP or similar ERP/MRP systems to manage purchasing processes and records.

Plans and manages materials for complex manufacturing programs, aligning procurement and inventory with production schedules. Analyzes material requirements, usage, lead times, supplier performance, and costs using ERP, MRP, Excel, and SQL. Leads process and system enhancements, automation, and continuous improvement initiatives; coordinates with procurement and cross-functional teams to resolve delivery, quality, and pricing issues; presents performance reports and mentors junior planners.

Plans and procures materials to support production schedules while optimizing inventory and minimizing costs. Collaborates with engineering, production, and procurement teams; analyzes material requirements, inventory, lead times, and supplier performance using ERP, MRP, Excel, and SQL. Resolves supplier issues, prepares management reports, and leads process and system enhancements. The role also supports challenging programs and trains junior material planning staff.

Operates as a real-time spacecraft systems engineer for Dream Chaser missions. Monitors telemetry, commands subsystems, executes nominal and contingency procedures, analyzes anomalies, and provides technical recommendations to the Flight Director. Responsibilities include pre-mission planning, console product and procedure development, flight rules, simulations, certification, and coordination with flight control and engineering teams. The role requires rotating 9-hour shifts for continuous mission coverage and on-site work in Louisville, Colorado during missions.

Creates and maintains production schedules, aligning materials, labor, and resources with manufacturing goals. Coordinates with procurement, manufacturing, engineering, and logistics; manages schedules and inventory through ERP and MRP systems; monitors progress and adjusts for delays. Analyzes production data, supports Lean Manufacturing and continuous improvement, develops planning procedures, troubleshoots production issues, and presents recommendations to stakeholders.

Provides executive leadership for the enterprise proposal management function, directing complex, high-value government and strategic proposals. Builds high-performing teams, establishes scalable processes and quality reviews, develops executive-level narratives and win strategies, advises leadership on bid decisions, manages budgets and resources, and improves win rates through analytics, automation, continuous improvement, and cross-functional collaboration.

Leads spacecraft mission design, modeling, simulation, and analysis for constellations and system-of-systems architectures. Derives requirements, evaluates mission performance, supports vehicle and payload sizing, validates system models, develops analysis tools, and presents recommendations to customers, executives, and engineering teams. Supports business development, technical documentation, and mission design process development while leading teams through complex space and defense programs.

Designs and develops complex tooling and fixtures for advanced manufacturing processes. Leads process optimization, gated design reviews, validation, and cross-functional improvement projects. Creates CAD models, drawings, and specifications; collaborates with engineers, suppliers, technicians, and operators; supports tooling implementation and training; and ensures compliance with safety, quality, and manufacturing standards.

Assists senior engineers with designing, analyzing, and evaluating mechanical ground support equipment for spacecraft assembly, integration, and testing. Supports work on fixtures, shipping containers, pressure panels, tooling, and transportation equipment; collects and analyzes engineering data; resolves routine technical problems; and prepares technical documentation and reports. Collaborates cross-functionally, follows guidance, meets deadlines, and communicates technical concepts clearly.

Coordinates recruiting activities, including complex interview scheduling across time zones, calendar management, candidate communication, ATS record maintenance, feedback collection, and hiring timeline alignment. Supports recruiting events and identifies opportunities to improve scheduling workflows and candidate experience. Requires accuracy, confidentiality, organization, problem-solving, and collaboration with talent acquisition partners, hiring managers, interviewers, and HR teams.

Manages program cost, schedule, and financial controls for government and defense contracts. Oversees budgets, schedules, cost and schedule baselines, earned value reporting, funding profiles, forecasts, variance analyses, and contract changes. Develops actionable performance reports, ensures compliance with contracting requirements, advises program and finance leaders, improves operating policies, and leads a team of program cost control professionals to deliver projects on time and within budget.

Leads medium-sized cross-functional engineering projects from design through implementation, balancing technical, cost, schedule, and quality requirements. Performs trade studies, technical evaluations, estimates, and supplier management; supports risk, cost, and schedule management. Coordinates engineering and program teams, communicates with customers and stakeholders, mentors junior engineers, reports project metrics to leadership, and drives innovation and continuous improvement.

Designs, analyzes, and tests aerospace systems and components, with emphasis on aerodynamics, aerothermal analysis, astrodynamics, or related disciplines. Performs vehicle-level analysis, system design, first-order analyses, simulations, and testing; develops technical documentation and reports; communicates technical information; and collaborates with cross-functional teams during reviews and engineering problem-solving activities.

Conduct SOX and operational audits by evaluating control design, testing entity-level, business process, and IT general controls, identifying deficiencies, and recommending enhancements. Lead remediation across business units, assess materiality, communicate status to senior management, develop risk-based audit plans, and ensure compliance with internal audit and government standards. The role also covers DCAA/DCMA audits, government contractor business systems, financial reporting controls, cybersecurity requirements, and complex accounting matters.