Principal Software Engineer (Onsite)

Date Posted:2026-01-30Country:United States of AmericaLocation:US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01Position Role Type:OnsiteU.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 - CurrentSecurity Clearance Status: Active and existing security clearance required on day 1Raytheon Company, Managed by Collins AerospaceAt Collins Aerospace, we’re working side-by-side with our customers and partners to dream, design and deliver solutions that redefine the future of our industry. By reaching across the markets, we draw on our vast portfolio of expertise, we are making the most powerful concepts in aerospace a reality every day. As the industry faces new challenges and embraces new technologies, Collins is collaborating and innovating with our customers to bring big ideas to life. And together, we're redefining the future of aerospace.Our Autonomy team is looking for an experienced Principal Software Engineer to join our team. This is an onsite position located at one of the three facilities listed above. At Collins Aerospace, you will work on cutting edge technology and contribute to programs that save lives and enable the freedoms we enjoy. What You Will DoParticipation in collaborative, cross-disciplined integrated product teams, employing agile software development techniques and resources to plan, design, develop, test, and integrate complex software and systems solutions.Technical Leadership of a software team, ownership of software product providing an innovative solution that meets or exceeds customer expectations.Coordinating with multiple programs to ensure a stable product line base that supports multiple products.Maintain a backlog to plan and track progress of feature development and issue resolution.Collaborate with customer and user community to incorporate user feedback.Responsibilities could span the full lifecycle of product development, from architecture and design, through integration, flight test, and field support.Present to customers or stakeholders on software development progress and capabilities.Work on site as required for lab integration and team collaboration.Travel occasionally to support system integration and test, customer events, and related external activities.Qualifications You Must HaveExperience with designing and implementing a large-scale modularized, reusable product base that supports multiple products.Software development experience with C++ and a large code base.Experience developing on Red Hat Linux or equivalent OS.Experience working with development containers.Experience leading a software team using Agile software development practices.Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.Active and transferable U.S. government issues Secret clearance is required prior to start dateQualifications We PreferExperience with all phases of software development: architecture, design, implementation, testing, system integration, and sustainment.Experience with Python, Git, Visual Studio Code, Jira, Gitlab, Docker, Kubernetes, Boost, GCC compilers.Experience with using AI third-party applications in software systems.Experience with software interface message translation.Experience with AFSIM or similar modeling and simulation frameworks.Experience developing and integrating OMS-based architectures and or a Government Reference Architecture (GRA).Domain knowledge in one or more of the following areas: Network Communications, Datalinks and Platform Integration.Master of Science degree (M.S.) in Software Engineering, Computer Engineering, Computer Science, Electrical Engineering, Math, Physics or related field.What We Offer BenefitsSome of our competitive benefits package includes: Medical, dental, and vision insuranceThree weeks of vacation for newly hired employeesGenerous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy optionTuition reimbursement programStudent Loan Repayment ProgramLife insurance and disability coverageOptional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protectionBirth, adoption, parental leave benefitsOvia Health, fertility, and family planningAdoption Assistance Autism BenefitEmployee Assistance Plan, including up to 10 free counseling sessionsHealthy You Incentives, wellness rewards programDoctor on Demand, virtual doctor visitsBright Horizons, child and elder care servicesTeladoc Medical Experts, second opinion programAnd more! 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.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 all higher, again and again.The salary range for this role is 118,300 USD - 224,900 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.

Created: 2026-02-11