Back

Senior Mechanical Engineer (Onsite)

Raytheon

Location Pin Icon
Rockford, IL
LOCATION

Job Description

As posted by the hiring company

Job Overview:

Date Posted:

2025-12-17

Country:

United States of America

Location:

A01: Rockford - Aerospace 4747 Harrison Avenue, Rockford, IL, 61125 USA

Position Role Type:

Onsite

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

U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Security Clearance:

None/Not Required

The Senior Mechanical Engineer provides hands-on engineering support across mechanical design, sustaining engineering, and build, test, and production readiness activities. This role owns the execution of moderately complex mechanical work packages, supporting programs through design implementation, troubleshooting, and delivery of practical, technically sound solutions in both development and operational environments. While Test Equipment (TEQ) support remains a priority area, the role is broader in scope and includes mechanical design ownership, production support, and environmental and dynamic considerations to ensure robust performance and successful system integration.

This role is intended for an engineer with strong depth in select focus areas—such as mechanical design, sustaining engineering, and test/TEQ support—combined with broad mechanical engineering capability across related disciplines. The engineer operates with a moderate level of autonomy, collaborating closely with peers, manufacturing, and test teams while appropriately escalating risks or impacts related to scope, cost, or schedule to leadership as needed.

The position includes both analytical and hands-on involvement in vibration, shock, and dynamic environments, supporting test execution and design refinement to ensure hardware robustness, qualification, and compliance with program requirements.

What You Will Do:

  • Execute mechanical design and support activities across development, test, and production environments, including part and sub-assembly design, updates, and release support.
  • Provide sustaining engineering for released hardware including investigations, dispositions, design updates, and documentation support.
  • Support and develop test fixtures, tooling, and TEQ as needed to enable verification, troubleshooting, and production readiness.
  • Investigate build, test, and field issues; perform root cause analysis and implement corrective actions.
  • Support verification activities including test setup definition, requirements interpretation, execution support, and results documentation.
  • Support vibration, shock, and dynamic testing, including shaker test setup definition, fixture considerations, execution support, and results interpretation.
  • Apply engineering judgment to address dynamic response, durability, and environmental loading through a combination of analytical understanding and hands-on test experience.
  • Partner with manufacturing and operations on producibility improvements, process robustness, and issue resolution.
  • Coordinate with suppliers and vendors for fabrication, modification, and qualification of fixtures, tooling, and test assets.
  • Communicate technical findings, options, and recommendations to peers and leadership.

Qualifications You Must Have:

  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience
  • Experience supporting mechanical design, integration, and release of components and assemblies
  • Demonstrated strength in troubleshooting, failure investigation, and root cause identification
  • Working knowledge of vibration, shock, and dynamic behavior, including exposure to test support or environmental qualification activities
  • Hands-on experience operating in laboratory and production environments, with a practical, solutions-oriented mindset
  • Ability to translate technical requirements into implementable design, test, and verification solutions

Qualifications We Prefer:

  • Experience with NX CAD and Teamcenter or similar PLM systems, including drawing release processes
  • Background working in lab and test environments, with general instrumentation awareness
  • Exposure to environmental testing methodologies such as sine/random vibration, shock testing, and shaker systems
  • Familiarity with basic structural, thermal, mechanical, or dynamic analysis (e.g., hand calculations or FEA exposure)
  • Ability to apply sound engineering judgment when evaluating test results and design tradeoffs
  • Experience participating in Root Cause & Corrective Action (RCCA) activities and Failure Review Boards (FRBs)
  • Exposure to dynamic analysis techniques or correlation of analytical predictions with test data

What We Offer:

  • 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 illness insurance, 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

  • And more!

Learn More & Apply Now!

Mission Systems:

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.

* Please consider the following role type definitions as you apply for 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.

Apply now and be part of the team that’s redefining aerospace, every day.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select 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 82,000 USD - 164,000 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.

Privacy Policy and Terms:

Click on this link to read the Policy and Terms