Principal Mechanical Engineer

RTX

. Serve as a key technical contributor to department-supported programs and products .

Posted 10/5/2026full-timeRemote • California • United StatesLead💰 $107,500 - $204,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in RF system design and mechanical engineering within defense-related electronic systems, with a strong focus on thermal and structural analysis, electronics packaging, and compliance with ASME standards. Proven ability to lead teams, mentor junior engineers, and maintain effective relationships with stakeholders.

Highest-signal resume keywords

RF System DesignMechanical DesignGeometric Dimensioning And Tolerancing (GD&T)Pro/Engineer/CREODoD Secret Security Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Electronics Packaging DesignThermal Design And AnalysisElectrical Component DesignPrinted Wiring Board ProcessesCircuit Card Assembly ProcessesMetal Fabrication MethodsMechanical RF Isolation DesignEnvironmental Test MethodsFailure Modes AnalysisASME Drawing Standards

Soft Skills

Technical GuidanceMentoringCustomer Relationship ManagementTeam LeadershipCommunication

Certifications & Qualifications

U.S. Government-Issued Security Clearance

Industry Keywords

Defense-Related Electronic SystemsIntegrated Product Team Lead (IPTL)Responsible Engineering Authority (REA)Thermal And High-Vibration EnvironmentsJob Assignments Oversight

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Serve as a key technical contributor to department-supported programs and products
Design RF systems for challenging thermal and high-vibration environments
Lead programs as a Responsible Engineering Authority (REA) or Integrated Product Team Lead (IPTL)
Liaise with programs to ensure technical, cost, and schedule success
Oversee junior engineers’ job assignments and performance
Apply electronics packaging design and manufacturing knowledge
Perform or support thermal and structural design and analysis
Work with electrical component design, construction, and failure modes
Apply printed wiring board and circuit card assembly processes and best practices
Work with surface-mount and through-hole component installation processes and failure modes
Apply metal fabrication and finishing methods
Design mechanical RF isolation
Use environmental test methods and equipment
Provide technical guidance and mentor matrix teams
Make technical presentations and establish customer relationships
Maintain positive relationships with functional and program leadership

Requirements

What you’ll need

Degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years of prior relevant experience, or an advanced degree in a related field and minimum 5 years’ experience
Experience with mechanical design, development and/or implementation of defense-related electronic systems
Experience with Geometric Dimensioning and Tolerancing (GD&T)
Experience with ASME drawing and documentation standards and procedures
Minimum three years creating and documenting mechanical designs in Pro/Engineer/CREO or similar modeling tools
U.S. citizenship required
Ability to obtain and maintain a U.S. government-issued security clearance
Active and existing DoD Secret security clearance required after day 1

Benefits

Comp & perks

Healthcare, wellness, and work/life benefits
Parental leave, including paternal leave
Flexible work schedules
Achievement awards
Educational assistance
Child/adult backup care
Medical, dental, and vision insurance
Life insurance
Short-term disability
Long-term disability
401(k) match
Flexible spending accounts
Employee assistance program
Employee Scholar Program
Paid time off
Holidays
Annual short-term and/or long-term incentive compensation programs may be available