Space Systems Modeling Engineer: Multi-Orbit Simulations

Amazon; El Segundo (CA); On-site; USD 129,000 - 175,000; Full time

Benefits offered by this job

Health insurance

401(k) matching

Paid time off

Job summary

KGS LLC in California is seeking a Space Systems Modeling and Analysis Engineer to develop high-fidelity models of multi-orbit constellations for SATCOM, NAVWAR, SBST, and MWT missions. Build fast, parallelizable simulations across LEO, MEO, and GEO, modeling crosslinks, ground segments, and sensor performance.

You will perform constellation-level availability analyses, support trade studies, Alt-PNT timing, and network topology exploration.

Qualifications

• Bachelor's degree in a STEM discipline.
• 3+ years of experience developing physics-based models and simulations of space systems.
• Experience with multiple orbital regimes (LEO, MEO, GEO).
• Ability to obtain/maintain a US security clearance.

Responsibilities

• Develop, validate, and maintain high-fidelity models of multi-orbit constellations (pLEO, MEO, GEO).
• Design and execute large-scale parallelizable simulations to evaluate performance, coverage, and resilience under nominal and degraded conditions.
• Perform trade studies and sensitivity analyses on constellation design parameters, sensor geometries, and network topologies.
• Model ground segment architectures including radar systems, ground entry points, and ground-based command and control infrastructure.
• Model space-based threats including maneuverable satellites, counter-space systems, and electromagnetic warfare effects on space architectures.
• Model Alt-PNT frameworks including timing budget analysis and navigation warfare scenarios.
• Analyze Space Data Network (SDN) architectures including space-to-space crosslinks, exchange points, and network service orchestration.
• Develop sensor performance models for multi-phenomenology detection (infrared, radar) across missile warning and moving target indication missions.
• Support architecture decisions by quantifying system resilience, capacity, and performance under adversarial conditions.
• Produce technical documentation, trade study reports, and briefings for engineering and program leadership.
• Collaborate with systems engineers, mission architects, and government stakeholders to translate operational requirements into simulation parameters.

Skills

Orbital mechanics

Space systems modeling

Physics-based modeling

Parallel computing experience

Security clearance eligible

Education

Bachelor's degree in STEM

Tools

MATLAB

Python

C++

Job description

KGS LLC in California is seeking a Space Systems Modeling and Analysis Engineer to develop high-fidelity models of multi-orbit constellations for SATCOM, NAVWAR, SBST, and MWT missions. Build fast, parallelizable simulations across LEO, MEO, and GEO, modeling crosslinks, ground segments, and sensor performance.

You will perform constellation-level availability analyses, support trade studies, Alt-PNT timing, and network topology exploration.