Senior Software Engineer – MANTA / APNT (Onsite)

Date Posted: 2026-10-06 Country: United States of America Location: US-IA-CEDAR RAPIDS-112 ~ 400 Collins Rd NE ~ BLDG 112 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1 Senior Software Engineer – MANTA / APNT (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. The MANTA (Multi-domain Assured Navigation & Timing Applications) Software Department is seeking a Senior Software Engineer to join our team. In this role, you will contribute to the development of real-time embedded software for industry-leading GPS Receivers and other Positioning, Navigation, and Timing (PNT) products for military ground, airborne, and maritime applications. This position provides the opportunity to gain in-depth knowledge of Assured PNT system and software architectures while collaborating with a dedicated team to develop innovative navigation solutions for the warfighter. What You Will Do: Design, develop, and implement real-time embedded software for GPS receivers and PNT products. Perform requirements analysis, software design, coding, integration, verification, and documentation. Integrate software onto target hardware and troubleshoot issues to ensure optimal performance. Support field demonstrations, system integration efforts, and product deployment activities. Collaborate with cross-functional teams to deliver high-quality software solutions. Apply Agile methodologies to software development processes for real-time embedded hardware/software applications. Mentor and guide junior team members to foster a collaborative and productive team environment. Qualifications You Must Have: 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 Must have or be capable of obtaining a US Department of Defense (DoD) security clearance. Candidate selected will be subject to a government security investigation/reinstatement and must meet eligibility requirements Experience with C/C++ or other high-order programming languages in an embedded application environment. Experience with hardware-centric product development and integration. Proficiency in software development processes for real-time embedded systems. Qualifications We Prefer: Advanced degree in a technical, management, or leadership field. Experience with GPS, digital signal processing, and/or wireless communication systems. Experience using Python for test scripting. Familiarity with tools such as Eclipse, Jira, and Jama. Knowledge of Agile development methodologies. Experience supporting field demonstrations and integration efforts. 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 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