Mechanical Assembler III - 1st Shift(Onsite)

Date Posted:

2026-05-28



Country:

United States of America

Location:

US-CA-SAN DIMAS-936 ~ 936-960 Overland Ct ~ OVERLAND

Position Role Type:

Onsite

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

This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted refugee or asylee status in the U.S. are considered U.S. persons. For a complete definition of “U.S. Person” go here: https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-120/subpart-C/section-120.62

Security Clearance Type:

None/Not Required

Security Clearance Status:

Not Required

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.

We are seeking a Mechanical Assembler III to join our team onsite in San Dimas, CA. Your schedule will be Monday-Friday 6:30am-3:00pm and overtime on a business need basis.

What You Will Do

• Use common hand tools, calipers, micrometers, torque wrenches, etc.

• Perform assembly operations for components and assemble parts to completion

• Prepare assemblies for in process and final testing inspections

• Participate in safety and training meetings

• Utilize operational route sheets

• Follow manufacturing route sheet instructions & drawing requirements

• Use knowledge of safety and environmental rules

• Follow PPE requirements

• Work within a team and independently

Qualifications You Must Have 

• Typically requires HS diploma (or equivalent, e.g. G.E.D. in the US) or vocational/technical education in related discipline with a minimum of 2 years of relevant experience.

Qualifications We Prefer

• Experience in CCA builds/rework, cable harnesses, or soldering using drawings and microscopes

• Experience working in a clean room or laboratory and working with chemicals

• 3+ years of experience working within electro-mechanical or mechanical assembly

• Experience using a resistance spot welder

• Certificates including soldering, J Standard, or Assembler Certifications

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 

• 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 

• Teledoc Medical Experts, second opinion program 

Learn More & Apply Now!

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. 

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.

Regardless of your role type, collaboration and innovation are critical to our business and all employees will have access to digital tools so they can work with colleagues around the world – and access to Collins sites when their work requires in-person meetings.

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.

The salary range for this role is 46,592 USD to 87,386 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.

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.

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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