Senior Mechanical Design Engineer

RTX

. Develop innovative technical solutions across the product lifecycle, including proposal, advanced development, design, cooling, manufacturing, integration, and testing of radars, support equipment, and electronics for military programs .

Posted 9/25/2026full-timeMarlborough • Massachusetts • United StatesSenior💰 $86,800 - $165,200 per yearWebsite

About the role

Key responsibilities & impact

Develop innovative technical solutions across the product lifecycle, including proposal, advanced development, design, cooling, manufacturing, integration, and testing of radars, support equipment, and electronics for military programs
Perform tolerance analyses to ensure intended form, fit, and function
Lead small teams in mechanical hardware design involving ruggedized structures, interconnects, cooling, electronics packaging, tooling, and/or array integration
Support product integration at domestic and international factories and supplier locations
Collaborate with engineering disciplines, operations, supply chain, quality, and external suppliers
Independently manage tasks and deliver on schedule, budget, and technical goals
Participate in design reviews and conduct trade studies
Mentor and guide less experienced engineers
Create, review, interpret, release, and update technical documentation and engineering drawings
Contribute to design, development, manufacturing, production support, and technical problem-solving for defense systems

Requirements

What you’ll need

Degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience, or an Advanced Degree in a related field and minimum 3 years experience
Experience in the creation, review and interpretation of technical documentation utilized in the development or production of hardware or tooling products
Experience in mechanical design, advanced design development, manufacturing or tooling processes, or related areas
Experience in the development, creation, release, or updates of engineering drawings utilizing a 3D CAD design tool
Proven mechanical design ability in a production or advanced development environment
Experience in design, fabrication, or integration of Electronics Packaging, design and development of Electronic Systems, including interconnects, power distribution, cooling, RF or tooling products
Technical Data Package creation and change notice processing
Experience using CREO CAD design and documentation tools or similar 3D solid modeling software with a configuration and data management environment
Experience in Geometric Dimensioning and Tolerancing
Experience with cost and/or schedule reporting or proposal development
Familiarity with Military and/or Commercial Specifications and requirements
Willingness to travel domestically and internationally
U.S. citizenship required
Active and existing DoD Secret security clearance required after day 1
Ability to obtain and maintain a U.S. government-issued security clearance

Benefits

Comp & perks

9/80 schedule (every other Friday off)
Relocation assistance is available
Medical insurance
Dental insurance
Vision insurance
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
Holidays
Potential eligibility for annual short-term and/or long-term incentive compensation programs