Software Engineer, Missile Defense Simulation (Principal)

Location: Hybrid work with required onsite work; candidates will be located near Denver or Colorado Springs, with the listed offices in Denver, Colorado or Long Beach, California.

Base salary: $90,000–$325,000 per year, plus equity and benefits.

Company

hirify.global develops autonomous spacecraft, advanced payloads, mission software, and space-based interceptors for space superiority and missile defense.

What you will do

• Develop and maintain physics-based models for threats, sensors, spacecraft, interceptors, communications links, and command-and-control systems.
• Build mission- and engagement-level simulations for end-to-end detect, track, target, engage, and assess analysis.
• Integrate models into digital engineering, software-in-the-loop, hardware-in-the-loop, and distributed simulation environments.
• Define and execute model verification, validation, and accreditation, correlating simulation results with test and flight data.
• Develop analysis tooling, automation, and visualization in Python and C++.
• Run Monte Carlo, sensitivity, and trade studies while collaborating with systems, GNC, payload, software, and flight-test engineers.

Requirements

• Bachelor’s degree in aerospace engineering, mechanical engineering, electrical engineering, physics, applied mathematics, computer science, a similar discipline, or relevant experience.
• At least 2 years of professional experience in modeling and simulation, mission analysis, or aerospace and defense systems engineering.
• Experience modeling threats, interceptors, sensors, spacecraft dynamics, orbit determination, rendezvous and proximity operations, or command-and-control systems.
• Proficiency in Python and C++, with working knowledge of orbital mechanics, flight dynamics, or missile and interceptor trajectories.
• Experience with Monte Carlo methods, statistical analysis, and data visualization, plus strong technical communication skills.
• Must be a U.S. citizen and eligible for DoD Secret or TS/SCI clearance; ITAR eligibility is required.

Nice to have

• Active DoD Secret or TS/SCI clearance and SAP eligibility.
• Experience supporting space or missile defense programs.
• Knowledge of numerical methods, estimation and filtering, optimization, design of experiments, or 6DOF simulation.
• Experience with uncertainty quantification, model VV&A, Git, and CI/CD pipelines.

Culture & Benefits

• Company-paid medical, dental, and vision coverage with HSA/HRA options.
• Flexible time off or accrued PTO, paid holidays, parental leave, and sick leave.
• 401(k) retirement plan, fitness reimbursement, and equity participation.
• Catered lunch and snacks for in-office employees.
• Work in an interdisciplinary environment focused on space superiority and defense technology.