Principal Human Factors Engineer

Date Posted: 2026-06-25 Country: United States of America Location: US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET BLDG 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 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. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms, and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. These roles can be onsite in either Tewksbury, MA or Huntsville, AL. What You Will Do This is an exciting opportunity for a highly motivated Principal Human Factors Engineer to join us onsite in a closed area program with the LCE team. As a Principal Human Factors Engineer, your responsibilities will include: Serving as the Human Factors Engineering (HFE) and Human Systems Integration (HSI) lead for one or more programs, establishing technical direction and execution strategy throughout the system lifecycle. Leading the development, implementation, and execution of MIL‑STD‑1472–compliant HFE programs and associated analyses. Acting as the primary Human Factors technical interface with customers, program leadership, and cross-functional engineering teams to ensure human-centered design principles are integrated into system development. Driving the integration of HFE across Integrated Product Teams (IPTs), influencing system architecture, requirements development, design decisions, verification activities, and risk mitigation strategies. Leading HFE contributions to system safety efforts, including identifying human-related hazards, performing risk assessments, and developing design controls in collaboration with System Safety Engineering. Coordinating with customer representatives and government stakeholders to interpret, refine, and allocate Human Factors requirements across software, hardware, training, maintenance, and operational domains. Reviewing, approving, and providing technical oversight of HFE analyses, assessments, reports, and engineering recommendations. Briefing Human Factors status, technical risks, findings, and recommendations to program leadership, customers, and engineering review boards. Interpreting system requirements, customer specifications, military standards, and contractual requirements to develop actionable Human Factors solutions. Collaborating across Systems Engineering, Software Engineering, Electrical Engineering, Hardware Engineering, Logistics, Training, and System Safety organizations to ensure effective Human Systems Integration. Leading Human Factors Working Groups and participating in System Safety Working Groups, Engineering Review Boards, and customer technical interchange meetings. Developing and maintaining strong customer relationships while serving as a trusted advisor on Human Factors and HSI matters. Supporting proposal efforts through technical solution development, BOE generation, staffing recommendations, and authoring proposal content. Identifying opportunities to improve Human Factors processes, tools, methodologies, and organizational capabilities. Providing technical leadership, mentorship, and guidance to HFE/HSI practitioners, promoting best practices and technical excellence. Mentoring early and mid-career engineers through coaching, technical reviews, and knowledge sharing. Exercising significant independent judgment to resolve complex technical challenges involving human performance, usability, safety, maintainability, training, and operational effectiveness. Supporting multiple programs and organizational initiatives as an HFE/HSI subject matter expert. Travel up to 20% Qualifications You Must Have Typically requires a degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum 8 years of prior relevant experience Experience with Human Systems Integration, Human Factors Engineering or Safety Engineering. Experience with DoD Human Factors Programs e.g. MIL-STD-1472. Experience developing, implementing, and/or performing Human Engineering Program Plans, Human Engineering Assessments and/or Analyses. Qualifications We Prefer Active and transferable U.S. government issued Secret or Top-Secret SCI Clearance. Familiarity with Engineering Change Proposals, Engineering Review Boards, Human Factors Working Groups, and System Safety Working Groups. Experience with digital human modeling analysis. Experience with Manpower/Personnel Analysis. Experience with Human Performance Modeling (cognitive workload, manpower, and/or crew endurance modeling). Experience with Personnel Survivability and or/Habitability. Experience applying human factors engineering to the design of training systems and simulators. Experience with Human Factors requirements analysis. Experience with User Interface and developing wireframes. Experience interfacing with System Safety Engineering showcasing execution of tasking involving MIL-STD-882 and System Safety Engineering practices. Experience with Earned Value Management Systems (EVMS) and Proposal Development. Human Factors-related education and BS/MS/PhD in one of the following (or closely related) disciplines: Human Factors Engineering, Cognitive Psychology, Engineering Psychology, Experimental Psychology, Industrial-Organizational Psychology, Industrial Engineering, Systems Engineering. What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation. Relocation Eligible Learn More & Apply Now! Please consider the following role type definition as you apply for 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. This position requires the ability to obtain a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: 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 107,500 USD - 204,500 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 RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.