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Cloud EngineeringOnsite

Modeling and Simulation Senior Principal Engineer

RTX - Company

Richardson, Dallas, ๐Ÿ‡บ๐Ÿ‡ธ United StatesFull-time - Principal (10+ years)0 applicantsCloses Jun 21, 2026

Salary

USD 0 - 251,600 / year

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Job description

Job details

  • Location: Richardson, Dallas
  • Work mode: Onsite
  • Employment type: Full-time (Not an internship)
  • Salary: USD 0 - 251,600 per year

Role overview

RTX is hiring a Modeling and Simulation Senior Principal Engineer for an onsite position in Richardson, Dallas. This principal-level role requires an active TS/SCI security clearance with Polygraph and focuses on advanced modeling, simulation, and systems engineering for defense and aerospace applications. The position offers a competitive salary up to $251,600 USD and requires U.S. citizenship.

Job details

This is a full-time, onsite position located in Richardson, Dallas, Texas. The role is based at RTX's Cityline facility and requires daily presence due to the classified nature of the work. Candidates must hold or be able to obtain a Top Secret/SCI security clearance with Polygraph. Salary range is competitive, with a maximum of $251,600 USD depending on experience and qualifications. Only U.S. citizens are eligible due to security clearance requirements.

Responsibilities

  • Lead complex modeling and simulation projects for defense systems
  • Develop advanced simulation frameworks and validation methodologies
  • Collaborate with cross-functional engineering teams on classified programs
  • Provide technical leadership and mentorship to engineering staff
  • Interface with government customers and program stakeholders

Requirements

  • Active TS/SCI security clearance with Polygraph required
  • U.S. citizenship mandatory for security clearance eligibility
  • 10+ years of experience in modeling and simulation engineering
  • Advanced degree in Engineering, Physics, Mathematics, or related field
  • Expertise in simulation tools, systems analysis, and defense applications
  • Strong technical leadership and communication skills

Benefits

  • Competitive salary up to $251,600 USD
  • Comprehensive health and retirement benefits
  • Professional development opportunities
  • Work on cutting-edge defense technology

Keywords

ModelingSimulationSystems EngineeringDefenseAerospaceTS/SCIClearanceMATLAB