Software Engineer II - Advanced Simulation & Training Systems (Onsite)

Date Posted: 2026-06-11 Country: United States of America Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​ Security Clearance Type: Secret - Current Security Clearance Status: Active and existing security clearance required on day 1 Software Engineer II - Advanced Simulation & Training Systems (Onsite) At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. We are currently searching for a Software Engineer to join our team in Sterling VA within the Strategic Defense Solutions (SDS) business area.   Our teams develop and build highly realistic simulators and training systems for both military and commercial customers.  We deliver highly specialized training for some of the most demanding jobs in aviation.  Devices range in complexity from desktop training all the way to high fidelity weapon system and full-flight training systems including full visual motion and simulator interoperability. In this position, you will assist in the design, implementation, and testing of multi-threaded software applications and their associated user interfaces.  You will work in a fast-paced, modern agile development environment and collaborate closely with systems, hardware, and test to build advanced, mission-focused capabilities and features. This position requires the ability to obtain a US security clearance.  Most aspects of the job are done in a classified lab environment, and this position requires a daily onsite presence.  What You Will Do:  Design, develop, integrate, and test software on cross-functional agile teams to deliver solutions within budget, scope, and schedule constraints  Highly motivated software developer  Perform software debugging   Work independently with general supervision  Provide engineering estimates for own work  Contribute to bidding and proposal activities  Contribute to software and systems engineering requirements capture and analysis  Travel to domestic and international customer sites to support training events and product installations  Qualifications You Must Have: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 2 years of prior relevant experience or an Advanced Degree in a related field Active and transferable U.S. government issued secret security clearance is required prior to start date A working knowledge of C/C++  Qualifications We Prefer: Have a good working knowledge of Windows operating system  Familiarity with DevSecOps and Agile development methodologies  Familiarity with C#, Windows Presentation Formats (WPF), and .NET technologies  Familiarity with scripting languages (Python, Perl, etc.)  Excellent written and oral communication skills  Experience with Visual Studio and Eclipse  Usage of source code control tools (SVN, GIT, ClearCase, etc.)  Usage of ALM tools (JIRA, Confluence, Crucible, Bamboo)  Active DoD Security Clearance (within 24 months) Agile software development experience Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. What We Offer: Some of our competitive benefits package includes:    Medical, dental, and vision insurance   Three weeks of vacation for newly hired employees   Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option   Tuition reimbursement program  Student Loan Repayment Program   Life insurance and disability coverage   Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection  Birth, adoption, parental leave benefits  Ovia Health, fertility, and family planning   Adoption Assistance            Autism Benefit   Employee Assistance Plan, including up to 10 free counseling sessions   Healthy You Incentives, wellness rewards program  Doctor on Demand, virtual doctor visits   Bright Horizons, child and elder care services  Teladoc Medical Experts, second opinion program   Eligible for relocation assistance And more!   Learn More & Apply Now! *Please ensure the role type (defined below) is appropriate for your needs before applying to this role.  Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the developmen