Senior Software Engineer (Onsite)

Date Posted: 2026-07-28 Country: United States of America Location: US-CO-COLORADO SPRINGS-9970-CUST ~ 9970 Federal Dr ~ FEDERAL (External Site) 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 Raytheon Company Managed by Collins Aerospace Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers’ toughest challenges and to meet the demands of a rapidly evolving global market. Collins Aerospace, an RTX company, is seeking a Software Engineer to join the C2BMC JEMINI Program in Colorado Springs, CO, focusing on the development of advanced missile defense capabilities. This role involves software development in Java and collaboration with a dynamic team in a fast-paced environment. What You Will Do: Provide specialized expertise across multiple software and systems disciplines, with general knowledge of related areas and customer requirements. Conduct in-depth analysis and provide technical support for systems software products, including problem resolution, design, development, testing, and operational integration. Develop, modify, and implement operating systems applications based on provided specifications. Assist in design, coding, benchmark testing, debugging, and documentation of software programs. Collaborate with cross-functional teams to resolve technical challenges, establish standards, and enhance system efficiency. Design, code, test, and implement tools for operations automation. Work on most phases of software systems programming applications with minimal supervision. What You Will Learn Develop enterprise-grade applications on Linux platforms. Hone problem-solving skills to diagnose performance and operational issues, identify root causes, and implement effective solutions. Utilize development and management tools such as Maven, Git/GitHub, Nexus, and Eclipse. Apply Agile development methodologies to improve collaboration and efficiency Qualifications You Must Have: Proven experience with Java and software engineering, particularly in Java/J2EE, C++, or Object-Oriented Programming (OO). Strong knowledge of software engineering practices, including coding standards, automated testing, build pipelines, and configuration management. Exceptional problem-solving skills, with a proven ability to resolve performance issues and develop solutions. Excellent written and verbal communication skills, with a demonstrated ability to collaborate effectively in team environments. Experience working with Agile development methodologies. Active and transferable Secret U.S. government issued security clearance is required prior to start date Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience. Qualifications We Prefer: Active TS clearance. Security+ or equivalent certification. Hands-on experience as part of an Agile team. Familiarity with Java Spring. Experience using containerization tools like Docker/Kubernetes. 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 And more! Learn More & Apply Now!​ 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. ​ *Please ensure the role type (defined below) is appropriate for your needs before applying to this role. ​ This is an Onsite role: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. ​ At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again. ​ Apply now and be part of the team that’s redefining aerospace, every day. Employee Referral Eligible As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance. This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window. RTX 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, age, disability or veteran status, or any other applicable state or federal protected class. 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