**Date Posted:** 2025-06-25 **Country:** United States of America **Location:** HTX36: Richardson, TX 3200 E Renner Rd , Richardson, TX, 75082-2402 USA **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:** DoD Clearance: Secret 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 is currently seeking a Senior Principal Systems Engineer to join the Integrated Platform Solutions (IPS) team in Richardson, Texas. As a Senior Principal Systems Engineer, you will develop system requirements, models, designs, and validate these multi-domain Nuclear Command and Control (NC2) mission systems solutions used on the aircraft and ground stations being developed for our country’s strategic defense systems. This role includes focusing on customer needs and requirements in order to design, develop, document and test both hardware and software systems. Additionally, this position will be responsible for motivating team members, facilitating meetings, cultivating and reinforcing appropriate group values, behaviors, methods, and processes while identifying, analyzing and correcting problems. Responsibilities span the entire development lifecycle, including pursuit and order capture, system design, requirements definition, requirement allocation, requirement traceability, use case development for software/hardware, systems integration, verification testing and qualification. **What You Will Do:** + Serve as a lead systems engineer to capture, analyze, decompose, model, translate and create requirements and designs for large complex mission and communication systems. + Leads systems engineers in the development of functional, interface and performance specifications for hardware and software solutions. + Manage requirements and design changes while reporting technical risk areas. + Apply SysML concepts for System Modeling across a full engineering lifecycle + Author technical proposals/estimates and serve as a subject matter expert in non-advocate, internal and customer reviews. + Estimate, track, manage and report status relating to technical, cost, schedule, and risk performance for assigned scope of work. + Mentor product development teams in the utilization of the appropriate processes and tools, thus increasing product quality and improving customer satisfaction. **Qualifications You Must Have:** + Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience **or** an Advanced Degree in a related field and minimum 7 years of experience + Ability to obtain Final Secret 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 + Expertise in systems engineering and open systems architectures + Operational concept development + System and product design + Requirements management, technical risk management, interface definition and configuration management. **Qualifications We Prefer:** + Operational experience with embedded (low-level) software development, application software development, and/or hardware development + Development of integration and test plans, test cases, and procedures + Prior experience with control account management + Experience using DOORS, Cameo, JIRA or similar tools + Experience in technical proposal writing + Experience with bidding utilizing SEER tools + Experience with regulatory and certification requirements + Experience working in an Agile development environment, being part of a highly integrated team working closely with SW, Integration and Verification teams + Experience and exposure to other related disciplines such as human factors, system safety, reliability & maintainability, and cybersecurity. **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. May be eligible for relocation *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. Regardless of your role type, collaboration and innovation are critical to our business and all employees will have access to digital tools so they can work with colleagues around the world – and access to Collins sites when their work requires in-person meetings. Apply now and be part of the team that’s redefining aerospace, every day. The salary range for this role is 124,000 USD - 250,000 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. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act._ **Privacy Policy and Terms:** Click on this link (http://www.rtx.com/privacy/Job-Applicant-Privacy-Notice) to read the Policy and Terms Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status, age or any other federally protected class.