Principal Systems Engineer Requirements Lead; ONSITE

Principal Systems Engineer Requirements Lead

Location:

1801 Hughes Dr, Fullerton, CA 676

Date Posted:

Security Clearance: U.S. citizenship required with an active DoD Secret clearance as of day one.

Salary Range: 118,300 USD - 224,900 USD.

Position Type:
Onsite

• Support JPALS and JPALS‑adjacent programs.
• Own the system requirements lifecycle across system‑level and subsystem‑level development, based on customer specifications, operational concepts, decomposition, allocation, and traceability.
• 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.
• Lead the systems requirements engineering team and guide through key milestones (SRR, PDR, CDR, and other major reviews).
• 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.
• Lead technical discussions, design reviews, and requirement change assessments.
• Support verification planning by defining verification methods and collaborating with test teams.

• Extensive experience in systems engineering for complex, multi‑disciplinary systems (hardware, software, avionics, mission systems, etc.).
• Strong proficiency with requirements development, decomposition, allocation, and traceability across the system lifecycle.
• Demonstrated ability to lead cross‑functional engineering teams in defining, reviewing, and managing requirements.
• Experience guiding teams through major reviews.
• Ability to mentor junior engineers and establish best practices for requirements management.
• Familiarity with generating and maintaining technical documentation such as specifications, ICDs, TRDs, and Verification Cross‑Reference Matrices.
• Proficiency with IBM Rational DOORS and requirements management best practices.
• Proficient with Digital Engineering tools (DOORS, Cameo, Microsoft Office Suite, Jira, Confluence).
• Experience with risk management, trade studies, and decision analysis.
• Typical educational requirement: a STEM degree with at least 8 years relevant experience or an advanced degree with at least 5 years experience.

• Strong understanding of systems engineering principles and lifecycle.
• Systems thinking and the ability to understand how system components interact.
• Familiarity with Engineering Lifecycle Optimization (ELO) – Publishing.
• Prior work on GPS/PNT, avionics, or control systems.
• Experience with Model‑Based System Engineering (MBSE) practices and tools (e.g., Cameo/Magic Draw, Rhapsody, SysML).
• Strong leadership with focus and determination to ensure program success and product quality.
• Strong technical writing and communication skills; ability to present complex concepts clearly.
• Strong attention to detail, logical rigor, and ability to identify inconsistencies or gaps in requirements.

• Medical, dental, and vision insurance.
• Three weeks of vacation for newly hired employees.
• Generous 401(k) plan with employer matching funds and optional Lifetime Income Strategy.
• Tuition reimbursement program.
• Student loan repayment program.
• Life insurance and disability coverage.
• Optional additional coverages: pet, home, auto, critical illness, group legal,  protection.
• Birth, adoption, parental leave benefits.
• Ovia health, fertility, and family planning.
• Autism benefit.
• Employee Assistance Plan (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!

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.