Principal Mechanical Engineer – Electronics Packaging (Onsite)

RTX; Richardson (TX); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Three weeks vacation

401(k) plan with employer matching

Job summary

RTX's Strategic Defense Solution engineering team in Richardson, TX seeks a Principal Mechanical Engineer passionate about developing electronics equipment enclosures and integrating components into rack-level assemblies for military communications.

You will tackle high-power layouts with SWaP considerations, collaborate with Electrical and Systems engineering, and drive design, development, and testing through the product lifecycle, including DoD security clearance requirements.

Qualifications

• Degree in Science, Technology, Engineering or Mathematics (STEM) with 8+ years of experience, or an Advanced Degree with 5+ years of experience.
• U.S. citizenship and ability to obtain/maintain a DoD security clearance is required.
• Experience with military electronics packaging, chassis design, and EMI/EMC considerations.

Responsibilities

• Communicate technical topics clearly to engineers and non-technical peers.
• Coordinate drafting and review drawings for machined and sheet metal parts.
• Interface with Electrical and Systems engineering to ensure requirements across lifecycle.
• Lead IPT efforts to manage scope, budget, risks, and opportunities.
• Investigate complex issues to determine root causes and solutions.
• Design military-compliant enclosures using custom parts and COTS items.
• Support prototyping and testing to verify design conformance.

Skills

RF shielding

FEA

Thermal management

GD&T

DoD standards

Education

STEM degree

Advanced degree

Tools

Ansys

Job description

Date Posted:

2026-06-11

Country:

United States of America

Location:

US-TX-RICHARDSON-461 ~ 3200 E Renner Rd ~ RENNER BLDG 461

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required after day 1

At RTX, the world’s largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market.

Join us and help shape the future of aerospace and defense.

At RTX, the world largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. The Strategic Defense Solution engineering organization in Richardson, TX is seeking a highly motivated Principal Mechanical Engineer that is passionate about the development of electronics equipment enclosures and integration of items into rack level assemblies. These designs will contain a mixture of high-power componentry and radio frequency (RF) shielding considerations in addition to challenging size, weight, and power dissipation requirements.

This position will provide an opportunity for ownership of budget and schedule as well as coordination with a highly cross-functional team to ensure quality and compliance of designs throughout the entirety of their lifecycles. The selected candidate will be instrumental in driving innovation in the design, development, and test of electronic equipment supporting military communications missions.

Sign-on Bonus Eligible

What You Will Do:

• Communicate technical topics and issues in a clear and concise manner to both technical peers as well as non-technical team members.
• Conduct and provide constructive feedback during peer reviews. Mentor and document knowledge to provide technical guidance to both members of own team and beyond.
• Coordinate with drafting for the creation of drawings, along with providing review and redline of drawings for machined & sheet metal parts.
• Interface with a cross functional team, such as Electrical and Systems engineering, to ensure requirements compliance throughout the entirety of a product’s lifecycle.
• Work proactively with an integrated product team (IPT) to manage project scope and budget, as well as identify risks and opportunities.
• Participate in and lead investigations into highly complex, open-ended tasks. Search for and identify root cause of issues.
• Create military compliant designs that incorporate custom machined/sheet metal parts with a selection of commercial off the shelf items as required.
• Contribute to prototyping and testing activities to verify product requirements compliance.

Qualifications You Must Have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.
• The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
• Experience with commercial industry standards and/or military electronics packaging form factors, chassis design, and electromechanical applications.

Qualifications We Prefer:

• Active DoD security clearance.
• Experience with design and thermal management techniques for electronics packaging designs (enclosures and/or racks) with rigorous size, weight, and power (SWaP) requirements.
• Experience with interpreting Geometric Dimensioning and Tolerancing (GD&T) per ASME Y14.5.
• Experience with military standards such as MIL-STD-810, RTCA DO-160, and MIL-STD-1472.
• Experience working with standard form factor industry standards such as EIA-310, ATR, or VITA.
• Experience with designing products for rugged environments including electromagnetic interference (EMI), electromagnetic pulse (EMP), and nuclear exposure.
• Experience with thermal and structural Finite Element Analysis (FEA) best practices using Ansys.

What We offer:

Some of our competitive benefits package includes:

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance,critical illnessinsurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Ovia Health, fertility, and family planning
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including 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
• May be eligible for relocation
• And more!

Please ensure the role type (defined below) is appropriate for your needs before applying to this role.

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other – propel us all higher, again and again.

_ As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. _

The salary range for this role is 107,500 USD - 204,500 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, 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, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

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.

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