Senior Modeling & Simulation Engineer (TS/SCI)

Location: Los Angeles, CA; on-site in a secure environment

Base salary: $160,000–$200,000 annually plus equity

Company

hirify.global develops high-power satellite platforms for commercial and U.S. government missions from low Earth orbit to deep space.

What you will do

• Develop mission-level models and simulations for national security space missions, including operational objectives, environments, constraints, and mission profiles.
• Analyze constellation capability and performance against mission requirements, including network coverage, beam planning, and resilience in contested environments.
• Create and maintain simulation infrastructure and physics-based models for 20kW+ spacecraft subsystems, including propulsion, attitude control, power, and communications.
• Simulate and verify flight and spacecraft-orchestration software, support subsystem integration and testing, and investigate on-orbit anomalies through data analysis.
• Build tools for rapid deployment of quality code and adapt simulation capabilities for classified contexts.
• Set technical direction, review designs and code, own complex systems end-to-end, and mentor other engineers.

Requirements

• Active U.S. government security clearance at any level, or a clearance held within the last 12 months, and U.S. citizenship required.
• Prior experience with classified national security programs and secure/SCIF environments, including classified-information handling and program security protocols.
• Bachelor's degree in physics, aerospace, mechanical or electrical engineering, computer science, mathematics, or another STEM field.
• 5+ years of professional modeling and simulation experience.
• Development experience in Rust, C++, or a similar compiled language.
• Experience with scientific Python such as NumPy and SciPy, Julia, MATLAB, or similar tools.
• Ability to own complex systems end-to-end and guide the work of other engineers.

Nice to have

• Master's or PhD in a relevant STEM field.
• Mission-level or campaign-level modeling and simulation experience for defense or national security applications.
• Experience communicating technical intuition and expertise effectively to stakeholders.
• Production Rust experience and experience defining and creating simulation systems.
• Experience with Monte Carlo simulations, probability and statistics, linear algebra, controls, and/or orbital mechanics.
• Experience with space communications modeling, including RF and ground stations.
• Basic knowledge of electronics, Linux, computer architecture, and continuous integration and continuous delivery systems.

Culture & Benefits

• Full-time employment with equity participation.
• Comprehensive benefits including paid time off, medical, dental and vision coverage, life insurance, and paid parental leave.
• Work supports classified national security programs and must follow applicable security requirements.
• Reasonable accommodation is available during the application or interview process.

Hiring process

• Applicants who do not meet every preferred qualification are encouraged to apply.
• Employment is subject to export-control requirements: the hire must be a U.S. person under ITAR or otherwise eligible for a federally issued export-control license.