Software In The Loop (sitl) Developer Jobs

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2d ago

Software Engineer - Simulation

York Space Systems Greenwood Village, CO

Greenwood Village, CO

2d ago

$110k - $190k/yr Full time Python Engineering Flight Simulation

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Job Description

York Space Systems is building spacecraft simulation capabilities that help teams validate behavior, support regression testing, and accelerate mission test planning. In this onsite role in Greenwood Village, you will develop physics-based simulation components, connect them to avionics and telemetry models, and work alongside Systems Architecture and FSW teams to keep simulation workflows reliable and release-ready.

What you’ll do

Develop and maintain the physics simulator, increasing both model fidelity and runtime performance
Create new simulation capabilities aligned to new vehicle components and validate that models reflect real behavior
Author, develop, and integrate mission test scenarios, including fault and off-nominal cases
Build and maintain interface emulation logic
Model telemetry to a level suitable for meaningful regression testing
Support and extend development that targets the hardware interface with the simulation environment
Collaborate with Systems Architecture and FSW teams on component development
Collaborate with other teams on simulation health
Support internal users directly and incorporate their feedback into simulation models
Follow SIT software development processes to enable fast and quality releases
Implement software development, testing, and CI/CD practices that meet division and department standards
Develop and maintain product documentation, user guides, and model validation records

Required qualifications

Bachelor's degree or greater in Aerospace Engineering, Mechanical Engineering, Physics, Computer Science, or a related field
2+ years of experience in software engineering or a related field
Demonstrated development experience in Python and C++
Working knowledge of physics-based modeling, numerical methods, or control systems
Demonstrated proficiency in a Linux environment and with bash scripting
Demonstrated proficiency with Git and modern Agile software development practices and tools

Technologies you’ll work with

Python, C++, Linux
bash scripting, Git, GitLab CI/CD
CAN, SpaceWire, RS-422
Docker, CI/CD
Software-in-the-Loop (SITL), Hardware-in-the-Loop (HITL)
UDP/TCP

Desired qualifications

Coursework or experience in orbital mechanics, attitude dynamics, or GN&C
Experience emulating hardware interfaces or spacecraft bus protocols such as CAN, SpaceWire, or RS-422
Experience writing performance-sensitive simulation or real-time software
Experience validating models against test or flight data
Experience designing and working with APIs
Familiarity with spacecraft flight software and avionics architectures
Experience with Docker and containerization
Experience with CI/CD pipelines, especially GitLab CI/CD
Experience with Software-in-the-Loop (SITL) and/or Hardware-in-the-Loop (HITL) test systems
Experience with end-to-end, system-level automated testing
Experience with agentic or AI-assisted software development workflows
Ability to interface with and handle flight hardware
Familiarity with the space domain and satellite operations
Networking concepts like UDP/TCP
Active Top Secret security clearance or ability to obtain

Role details

Location: Greenwood Village, CO (onsite)
Compensation: USD 110,000 - 190,000 per year
Experience: 2+ years
Education: Bachelor's degree or greater

Benefits

Medical, dental, and vision insurance
PTO
401K

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