Senior Simulation Engineer – Space Radiation & HPC

Luneus; United States; Hybrid; USD 110,000 - 160,000; Full time

Job summary

Luneus in Huntsville, AL, seeks a Simulation Software Engineer to develop high‑fidelity radiation and environmental effect simulations for space systems. Hybrid role with remote options, collaborating with hardware, electronics, and space radiation engineers to ensure accurate models and integration with system architectures.

You will design backend systems and UX for parameter entry, perform radiation risk assessments, and contribute to TID/SEE/SET/DDD campaigns, delivering reports and test

Qualifications

• Bachelor's degree in a technical field.
• 7+ years in simulation or scientific software development.
• Experience with radiation environment models (trapped protons/electrons, solar protons/heavy ions, GCR).

Responsibilities

• Develop and maintain high-fidelity radiation simulation software.
• Collaborate with hardware, electronics, and radiation engineers.
• Design backend systems and user interfaces for parameter entry.
• Perform radiation risk assessments using in-house tools.
• Support TID, SEE, SET, and DDD evaluation campaigns.
• Develop radiation test plans and procedures.
• Coordinate testing with external labs and universities.
• Produce technical reports on results.

Skills

Radiation testing

Radiation effects

Distributed computing

OpenMP

MPI

Education

Bachelor’s degree in a technical field

Tools

OLTARIS

SPENVIS

CREME96

FLUKA

PHITS

GEANT4

Job description

Luneus in Huntsville, AL, seeks a Simulation Software Engineer to develop high‑fidelity radiation and environmental effect simulations for space systems. Hybrid role with remote options, collaborating with hardware, electronics, and space radiation engineers to ensure accurate models and integration with system architectures.

You will design backend systems and UX for parameter entry, perform radiation risk assessments, and contribute to TID/SEE/SET/DDD campaigns, delivering reports and test