Senior Systems Engineer (ONSITE)

Job ID: 01865607Posted: Posted TodayStart Date: 2026-08-08Location: US-CA-FULLERTON-676 ~ 1801 Hughes Dr ~ BLDG 676Country: United States of AmericaTime Type: Full timeDate Posted:2026-08-08 Country:United States of America Location:US-CA-FULLERTON-676 ~ 1801 Hughes Dr ~ BLDG 676 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 1Raytheon Company, Managed by Collins AerospaceCollins 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. Join us and help shape the future of aerospace and defense.We are looking for a Senior Systems Engineer who is passionate about solving complex problems and wants to make a real impact on the Joint Precision Approach and Landing System (JPALS) and adjacent programs. In this role, you will take ownership of defining and evolving requirements for a fielded GPS‑based approach and landing system used in some of the most demanding operational environments. You’ll collaborate closely with cross-functional teams to deliver high‑quality, integrated system solutions.If you enjoy systems thinking, clear technical communication, and driving clarity out of complexity, this is a role where you can thrive—and grow.What You Will Do • Support the JPALS and JPALS-adjacent programs • Elicit, derive, and define system-level and subsystem-level requirements based on customer specifications and operational concepts • Analyze stakeholder needs and translate them into technical, testable, and feasible requirements • Apply systems thinking to ensure requirements completeness, consistency, and proper allocation across hardware, software, and interfaces • Work with the system requirements engineering team and apply technical guidance from the team lead • Develop and maintain requirements in IBM Rational DOORS, including traceability and change impact assessment • Create and use scripts to automate documentation import/export to/from DOORS across multiple formats • Define and document system and subsystem interfaces, contributing to ICDs and architecture artifacts • Participate in technical discussions, design reviews, and requirement change assessments • Support verification planning by defining verification methods and collaborating with test teamsQualifications You Must Have • Familiarity with GPS/PNT systems • Proficiency with IBM Rational DOORS and requirements management best practices • Proficiency with DOORS DXL scripting • Experience with systems engineering activities including requirement derivation, interface definition, allocation, integration, requirement sell‑off, analysis, test procedure development, test execution, and results evaluation • Familiarity with generating and maintaining technical documentation such as specifications, ICDs, Test Requirements Documents (TRDs), and Verification Cross‑Reference Matrices • Proficient with Digital Engineering tools (DOORS, Cameo, Microsoft Office Suite, Jira, Confluence) • 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 • Strong understanding of systems engineering principles and lifecycle (concept design integration verification validation)Ability to understand how system components interact • Ability to identify requirement gaps, inconsistencies, conflicts, or duplication • Familiarity with Engineering Lifecycle Optimization (ELO) – Publishing • Exposure to Agile development workflows (Jira, Confluence) • Experience with Model‑Based System Engineering (MBSE) practices • Familiarity with Verification Cross‑Reference Matrices (VCRM), TRDs, or Systems Engineering Plan (SEP) artifactsWhat We Offer • 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. 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. Apply now and be part of the team that’s redefining aerospace, every day. Employee Referral Eligible#MISENGAs 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 95,500 USD - 181,700 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 to read the Policy and Terms