Simulation Engineer

Radiance Technologies, Inc.; Littleton (CO); On-site; USD 110,000 - 135,000; Full time

Job summary

Radiance Technologies, a 100% employee-owned company, is seeking a Simulation Engineer to support NASA Orion MPCV and Artemis missions. The role emphasizes hands-on C++/Python development, real-time 6-DoF simulation, andLinux-based workflows in a collaborative, mission-focused environment.

The successful candidate will design, implement, test, and sustain high-fidelity spacecraft simulations, integrate with test labs and ground systems, and engage with government customers and cross-functional

Qualifications

• Bachelor's degree in Engineering, Computer Science, Mathematics, Physical Sciences, or a related technical field.
• Minimum of five (5) years of experience supporting spacecraft programs.
• U.S. Citizenship required.
• Experience developing software in C++ and Python.
• Experience across the full software development lifecycle.
• Experience with real-time 6-DoF simulation.
• Extensive experience debugging complex software in large-scale systems.
• Extensive experience working in a Linux development environment.
• Experience with Perforce or a comparable SCM tool.
• Experience applying aerospace engineering concepts.
• Experience working within an Agile development methodology.
• Strong communication and collaboration skills.
• Self-motivated and proactive problem-solver.
• Experience with IBM DOORS or similar requirements management tools.

Responsibilities

• Perform docking ground software systems engineering supporting Orion MPCV and Artemis missions.
• Perform docking sim software development, unit/functional testing, and verification using Agile methodologies.
• Develop, integrate, debug, and maintain simulation software using C++ and Python.
• Support simulation software design, software production, integration, and verification activities.
• Develop and execute unit, functional, integration, and system-level tests for simulation software.
• Develop test procedures, test cases, dry runs, and other verification artifacts.
• Support real-time six-degree-of-freedom (6-DoF) simulation development and integration.
• Support integration with simulation rigs, test environments, spacecraft test laboratories, and ground systems.
• Support requirements traceability between software changes, requirements, and verification activities.
• Develop or enhance user interfaces and tools for testers and engineers to monitor, run, and report simulations.
• Support configuration management and version control using Perforce.
• Collaborate with engineers and government customers to resolve technical issues.
• Support additional engineering activities and studies as directed by technical lead or customer.

Skills

C++

Python

6-DoF simulation

Linux

Agile methodologies

Perforce

DOORS

Spacecraft systems

Communication

Education

Bachelor's degree in Engineering/CS/Math/Physical Sciences

Tools

MATLAB/Simulink

Perforce

IBM DOORS

Job description

Radiance Technologies, a 100% employee-owned company, is seeking a technically strong and highly collaborative Simulation Engineer to support a U.S. Government space program supporting NASA's Orion Multi-Purpose Crew Vehicle (MPCV) and Artemis missions. This position is ideal for an engineer with strong software development and simulation experience who enjoys solving complex problems in a collaborative, mission-focused environment. The successful candidate will support the development, integration, testing, and sustainment of high-fidelity spacecraft simulation capabilities supporting Orion mission operations and testing. The role requires hands-on experience with C++ and Python, real-time 6-DoF simulation, Linux development environments, the full software development lifecycle, and large-scale software systems. Experience with spacecraft systems, aerospace engineering concepts, Orion simulation environments, docking operations, or spacecraft test laboratories is highly desirable. This is a full-time, on-site position in Littleton, Colorado or Houston, Texas. Remote work is not available. The anticipated compensation or this position is $110,000 - $135,000 based on a full-time schedule. Your compensation will vary depending on your job-related skills, experience, and education.

Responsibilities

• Perform docking ground software systems engineering supporting Orion MPCV and Artemis 3 spacecraft missions.
• Perform docking sim software development, unit/functional testing, and verification using Agile methodologies.
• Develop, integrate, debug, and maintain simulation software using C++ and Python
• Support simulation software design, software production, integration, and verification activities
• Develop and execute unit, functional, integration, and system-level tests for simulation software
• Develop test procedures, test cases, dry runs, and other verification artifacts
• Support real-time six-degree-of-freedom (6-DoF) 6-DoF simulation development and integration
• Support integration with simulation rigs, test environments, spacecraft test laboratories, and associated ground systems
• Support requirements traceability between software changes, requirements, and verification activities
• Develop or enhance user interfaces and tools that enable testers and engineers to monitor, execute, and report simulation activities
• Support configuration management and software version control using tools such as Perforce
• Collaborate with systems engineers, software engineers, test engineers, spacecraft engineers, and government customers to resolve technical issues
• Support additional engineering activities and special studies as directed by the technical lead or customer

Required Experience & Qualifications

• Bachelor's degree in Engineering, Computer Science, Mathematics, Physical Sciences, or a related technical field
• Minimum of five (5) years of experience supporting spacecraft programs
• U.S. Citizenship required
• Experience developing software in C++ and Python
• Experience across the full software development lifecycle, including design, development, integration, testing, debugging, and maintenance
• Experience with real-time 6-DoF simulation
• Extensive experience debugging complex software and implementing sound software engineering practices within large-scale systems
• Extensive experience working in a Linux development environment
• Experience with Perforce or a comparable software configuration/version-control system
• Experience applying aerospace engineering concepts including areas such as orbital dynamics, spacecraft dynamics, fluid mechanics, or related disciplines
• Experience working within an Agile development methodology
• Strong communication and collaboration skills with the ability to work effectively with engineers, technical leads, government customers, and other stakeholders
• Self-motivated individual who actively and independently seeks opportunities to solve problems and improve software and engineering processes
• Experience with IBM DOORS or similar requirements management tools

Desired Experience & Qualifications

• Experience with MATLAB/Simulink

Radiance Difference Radiance is a 100% employee-owned company, and we believe our people are our greatest asset.

We are looking for engineers who want to be part of a team—not simply fill a position. Our most successful engineers combine technical excellence with strong relationships. They take pride in solving difficult problems, but they also understand that great engineering comes from collaboration, trust, communication, and a willingness to help the people around them succeed. If you are a technically capable systems engineer who enjoys working directly with customers, building strong professional relationships, mentoring teammates, and contributing to a positive engineering culture, we want to hear from you.

Radiance Technologies is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status.

Employee-Ownership Radiance is a proud employee-owned company!

Employee-ownership benefits both our customers and workforce, and ensures that Radiance doesn't have to answer to stockholders or be driven by quarterly earnings reports. Thus, Radiance will always prioritize enhancing our customer's mission over expanding our bottom line. We are singularly focused on providing our customers with game-changing solutions to their most challenging requirements. This is only possible because employee-ownership attracts the highest quality employees, empowers them to identify capability enhancements, and provides them with the freedom to take risks to deliver high-quality solutions. Employee-ownership also provides tangible and long-term financial security for our people and their families. Therefore, employee-ownership embodies participation, empowerment, freedom, teaming, excellence, accountability, mission focus, and security.

Our Culture

Radiance's culture is driven by our commitment to our customers and our employee-owners. Our employee-owners thrive on entrepreneurship, empowerment, and mutual responsibility for growth and sustainability. Our culture consists of individuals who embody technical and leadership skills to deliver superior solutions to the nation's toughest technical challenges. We believe building trust and credibility with our customers leads to long-term results. We invest in a superior technical workforce where leaders are developed, innovation is encouraged, and achievements are recognized. We seek innovative ways to improve, experiment, take risks, foster collaboration, and empower our employee-owners.

Our Values

Our values drive our culture, business model, and daily interactions. These values constantly remind us of who we are and what we do. Our employee-owners influence how we operate our business. We relentlessly pursue operating excellence by innovating, improving our processes, and reducing waste. We believe in being wise and ethical stewards of capital and resources. Our values dictate how we interact with each other and our customers, partners, and suppliers. Honesty, trust, humanity, alignment, and value creation require that we treat our employees with dignity and respect and provide them with fair compensation and equal employment opportunity. We believe in connecting with our communities and have a responsibility to be good corporate citizens, and we believe in sustainable business practices, which include supporting the environment and the communities in which we work.