Hiring: Sr. Software Engineer, Modeling & Simulation Company: Trace3 Location: Colorado Springs, CO Job Posted Time: 2026-09-10 14:28:32 Employment Type: Full-time / On-site Target Skills & Keywords : Docker, GraphQL, Java, OCI, Python, Secret Clearance About the job Experience: •Professional experience developing M&S or physics-based simulation systems. •Hands-on software engineering experience using Python, Java, or similar languages. •Understanding of astrodynamics fundamentals such as orbital propagation, ephemeris generation, and event modeling. •Demonstrated capacity to collaborate closely with engineers, testers, and product stakeholders. •Operational familiarity with ATLAS GraphQL APIs or similar data querying patterns. Required Skills: •Join the team to support mission critical space domain awareness (SDA) capabilities that directly serve the U.S. Space Force. In this role, you will develop core Modeling & Simulation (M&S) software used to model and simulate launch and orbital events, vehicle behaviors, and observation generation within the ATLAS architecture. •Develop, translate, and integrate external launch and space event M&S capabilities for SDA training and exercises. •Containerize, modernize, and integrate current M&S capabilities into the ATLAS Test, Training, and Exercise (TTX) software architecture. •Partner cross-functionally with physics and M&S subject-matter experts to ensure accuracy and consistency of models. •Develop foundational M&S capabilities to support event-generation workflows, ephemeris generation, state-vector conversion, predicted observations, and step-wise data ingestion for ATLAS TTX. •Actively facilitate and support full software development lifecycle including design, implementation, integration, and test. •Quarterly travel to Vandenberg SFB, approximately 10%, may be required to support integration and test events. Qualifications: •Bachelors with  4+ or Master with  2+ Years of Experience •Full Time/ On-Site in Colorado Springs, CO •Possess or have the ability to obtain a Secret clearance, at a minimum. •Bachelor’s Degree and 4+ years of relevant experience; Graduate Degree and 2+ years of related experience; or, in lieu of a degree, 8+ years of professional experience in related fields. Compensation: •$140,000 - $170,000 / year Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!