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Voyager Technologies · 3 months ago

Systems Engineer IV

Folsom, CA

Full-time

Onsite

Mid, Senior Level

$115K/yr - $170K/yr

7+ years exp

Voyager Technologies is an innovative defense, national security and space technology company committed to advancing transformative solutions. The Level IV Modeling, Simulation, and Controls Engineer will contribute to the design and analysis of control systems and simulation architectures for propulsion and aerospace systems, applying domain expertise to enhance design maturity and program success.

AerospaceInfrastructureSpace Travel

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Develop high-fidelity models and control algorithms for propulsion, flight control, and guidance subsystems

Support creation of system simulation architectures to enable design iteration, verification, and validation

Perform controllability studies of dynamic systems to assess system behavior under perturbations and control strategies

Define control system topologies and support gain tuning methodology across various architectures

Support program performance engineering through requirement derivation, margin analysis, and performance trade studies

Conduct system-level performance assessments using Monte Carlo, sensitivity, and parametric studies

Apply physics-based modeling to develop representative simulations of mechanical, thermal, and aerodynamic systems

Contribute to ballistics modeling and propulsion system performance analysis for solid rocket motors

Develop and validate models of actuation systems for propulsion control systems and dynamic mechanisms, supporting integration into closed-loop control architectures and performance assessments

Aid customers in developing mission CONOPS and requirements thru propulsion system modeling and controls design

Develop and implement estimation techniques to improve model accuracy and system insight

Extend modeling capability in state-space and modern control methods

Support simulation and analysis of flight vehicle control behavior for propulsion concept evaluation

Contribute to modeling and simulation planning for new programs and R&D initiatives

Collaborate with multidisciplinary teams (GNC, software, systems, test) to ensure integration of modeling products

Participate in customer engagements, technical reviews, and milestone events (SRR, PDR, CDR)

Mentor junior engineers and support peer reviews of modeling and controls work products

Author technical documents including model reports, simulation plans, interface definitions, and configuration records

Ensure simulation models meet program requirements for verification, validation, and traceability

Support technical trade studies and concept maturation of control and propulsion systems

Qualification

ModelingControl systemsDynamic system behaviorPropulsion modelingMATLAB/SimulinkPythonPhysics-based modelingSysML diagramsTechnical documentationCollaboration skills

Required

Must have or be able to obtain and maintain an active DoD Secret Clearance

Demonstrated ability to lead engineering tasks across lifecycle phases—from requirements through verification and delivery

Strong systems thinking and ability to work across functional boundaries

Effective leadership, collaboration, and interpersonal skills with a mission-driven mindset

Solid technical foundation in modeling, control systems, and dynamic system behavior

Ability to interface with DoD customers and support team decision-making on complex technical problems

Commitment to technical rigor, quality execution, and continuous improvement

Skilled in stakeholder engagement, technical risk identification, and collaborative problem solving

7–10 years of experience in modeling, simulation, control systems, or estimation algorithm development in aerospace or defense industries

Strong background in dynamic system modeling, control system design, and simulation infrastructure

Experience in propulsion modeling, including solid rocket motors and controllable solids performance

Working knowledge of physics-based modeling for mechanical, thermal, and aerodynamic subsystems

Demonstrated experience contributing to complex program deliverables and technical reviews

Required: Bachelor's degree in systems engineering, aerospace engineering, mechanical, electrical engineering, or related STEM field from an accredited college/university

Proficient in MATLAB/Simulink, Python, or equivalent modeling and control toolchains

Strong understanding of classical and modern control techniques, including state-space control

Competence in verification and validation of models and their use within broader system architectures

Capable of physics-based modeling and multi-domain simulation development

Experience in propulsion system modeling and basic ballistics performance assessments

Ability to generate SysML diagrams of product structure, product behavior, technical logic, engineering process, and test execution

Clear and effective communicator in both technical documentation and verbal presentations

Strong time management and collaboration skills in a multi-program environment

Ability to travel up to 10% for technical reviews, tests, or customer engagements

Comfortable working in secure or classified environments

Self-motivated and adaptable in a fast-paced, high-accountability development setting

Committed to advancing aerospace modeling and control capabilities in national defense

Preferred

Prior experience with Department of Defense (DoD), MDA, or equivalent government programs preferred

Preferred: Master's degree in systems engineering or a related discipline is desirable and may substitute for 1 year of experience from an accredited college/university