Senior Modeling & Simulation

About the role

Kepler is seeking a Senior Modeling and Simulation Engineer to build the frameworks and digital twins that define our next-generation space systems. You will work within the Solutions Architecture team to create tools that guide spacecraft design, manufacturing, and mission operations.

Key facts

What you'll do

• Build reusable simulation frameworks and modeling tools to facilitate rapid analysis of mission concepts and payloads.
• Partner with subject matter experts to simulate interactions between ground systems, spacecraft subsystems, and operational workflows.
• Create simulation capabilities for RF, optical imaging, communications, and ISR missions.
• Compare digital twin performance against actual in-orbit operational data.
• Automate data validation, documentation generation, and continuous integration testing.
• Train internal users on simulation best practices and tool usage.
• Optimize the balance between simulation fidelity and runtime performance.

Requirements

• Bachelor degree in Computer Science, Software Engineering, Computer Engineering, Systems Engineering, Aerospace Engineering, Physics, or Applied Mathematics.
• 7+ years of professional software development experience using modern engineering practices.
• Proven track record of end-to-end software delivery, including requirements gathering, development, integration, and user feedback loops.
• Ability to manage trade-offs between schedule, budget, simulation performance, and fidelity.
• Strong mathematical, analytical, and communication skills for explaining complex technical concepts.

Nice to have

• Master degree in a relevant technical field.
• Proficiency in Python and C/C++.
• Background in modeling aerospace systems, remote sensing, or optical/RF payloads.
• Experience with STK, GMAT, Orekit, Basilisk, or AGI tools.
• Knowledge of orbital mechanics, MBSE, flight software, or hardware-in-the-loop testing.
• Experience with AI, machine learning, LLMs, or optimization algorithms.
• Familiarity with cloud-based simulation, high-performance computing, or distributed frameworks.

Skills & tools

• Software development, modeling and simulation, digital engineering, mission analysis, digital twins.

Practical notes

• Benefits include comprehensive health, dental, and vision coverage for employees and dependents, unlimited vacation, and parental leave.
• The company provides a $1,500 annual professional development fund.
• Relocation packages are available for approved roles.
• Kepler is a certified Great Place to Work.
• If you require accommodation during the recruitment process, contact accommodation@kepler.space.