Principal Mechanical Design Engineer

RTX

Principal Mechanical Engineer leading radar development programs in aerospace and defense industry. Responsible for mechanical design, team leadership, and cross-functional collaboration in Massachusetts.

Posted 5/22/2026full-timeMarlborough • Massachusetts • 🇺🇸 United StatesLead💰 $107,500 - $204,500 per yearWebsite

Tech Stack

Tools & technologies

Assembly

About the role

Key responsibilities & impact

Utilize mechanical hardware design experience and knowledge with ruggedized structures, interconnects, electromechanical development, cooling, or array integration of phase array radars/electronics for multiple military programs
Develop technical solutions to a wide range of complex problems related to the entire product life cycle including proposal, design, manufacture, integration and test of phase array radars/electronics for multiple military programs
Employ transition-to-production practices with the ability to lead a design release into production
Provide technical conscience, challenged with making sure the product and process meet appropriate standards and requirements while helping to remove roadblocks
Work with minimal direction or supervision, while exercising considerable latitude in determining the technical objectives of the assignment while meeting cost, schedule, quality, and performance requirements for the finished product
Lead a small team of mechanical engineers when required
Collaborate frequently with cross-functional personnel, on significant technical matters often requiring coordination between organizations

Requirements

What you’ll need

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM)
Minimum of 8 years of prior relevant experience or an Advanced Degree in a related field and minimum 5 years experience
Experience in the design of radar architecture or electronics packaging for military or aerospace applications
Experience with GD&T (Geometric Dimensioning & Tolerances)
Experience with ANSI drawing standards and/or first order or structural analysis techniques
Experience with CREO (Pro/E) or similar 3D solid modeling software
Cognizant of machine and designing capabilities or have direct experience in manufacturing and assembly support role for producibility
Familiarity with the design and manufacturing processes of CCAs, mechanical/RF components, metal housings, structures, and electronics assemblies
Working knowledge of Microsoft Office (Word, Excel, PowerPoint)
Excellent verbal and written communications and interpersonal skills when working with team members and customers
Advanced degree in Mechanical, Electrical or Aerospace Engineering.

Benefits

Comp & perks

parental (including paternal) leave
flexible work schedules
achievement awards
educational assistance
child/adult backup care
medical, dental, vision, life insurance
short-term disability
long-term disability
401(k) match
flexible spending accounts
employee assistance program
Employee Scholar Program
paid time off
holidays

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

mechanical hardware designelectromechanical developmentphase array radar designGD&TANSI drawing standards3D solid modelingCREOstructural analysis techniquesmanufacturing processeselectronics packaging

Soft Skills

leadershipcollaborationcommunicationproblem-solvingindependencetechnical conscienceteamworkorganizational skillsadaptabilitydecision-making

Certifications

degree in STEMAdvanced Degree in Mechanical EngineeringAdvanced Degree in Electrical EngineeringAdvanced Degree in Aerospace Engineering