Senior Software Engineer I/II - Simulation Engineering

Location: Littleton, Colorado, United States; based at the Littleton site

Base salary: $115,000–$165,000 USD annually, plus potential stock and cash incentives.

Company

hirify.global is an end-to-end aerospace company developing rockets, spacecraft, flight software, and critical space systems for commercial, civil, and national security missions.

What you will do

• Architect and deploy distributed simulation environments for complex aerospace systems, including multi-vehicle and constellation-level models.
• Build data pipelines to process, analyze, and visualize large datasets generated by high-fidelity simulations.
• Apply statistical analysis and data modeling to derive engineering and mission-level insights.
• Optimize simulation infrastructure for high-performance computing and distributed clusters.
• Translate mission objectives into scalable simulation architectures with cross-functional domain experts.
• Integrate complex simulation ecosystems and synchronize multiple subsystems and analytical tools.

Requirements

• Bachelor’s degree in Computer Science, Engineering, Applied Mathematics, Physics, or a related field.
• 5+ years of relevant industry experience for Senior Software Engineer I or 8+ years for Senior Software Engineer II.
• Proficiency in Python, C++, or similar languages used for simulation infrastructure and data analysis.
• Experience architecting and analyzing large-scale Monte Carlo campaigns.
• Experience processing large datasets with modern data analytics libraries or frameworks.
• U.S. citizenship is required due to program requirements; U.S. export regulations also require appropriate authorization to access regulated technology.

Nice to have

• Active Secret or Top Secret clearance, or the ability to obtain and maintain one.
• Experience with HPC, parallel processing, distributed clusters, Docker Swarm, or Kubernetes.
• Experience with synchronized multi-vehicle simulations, optimization algorithms, cloud simulation platforms, data lakes, or AI-driven analysis.

Culture & Benefits

• Medical, dental, and vision insurance.
• 401(k) retirement plan options.
• Paid vacation, holidays, sick leave, and parental leave.
• Potential company stock, cash incentives, and discounted stock purchase opportunities.
• Work involves computer activity and may include occasional exposure to moderate noise, dust, and fumes in production areas.