Firearm Design Engineer Jobs in California (NOW HIRING)

Date Posted:
2026-07-02
Country:
United States of America
Location:
US-CA-FAIRFIELD-3530 ~ 3530 Branscombe Rd ~ BRANSCOMBE
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 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.
Collins Aerospace is looking for a Manufacturing Engineer II to join our team in Fairfield, CA! The Manufacturing Engineer develops and improves manufacturing processes by studying products and manufacturing methods. They provide premier engineering and manufacturing support expertise to enable on-time, lowest cost hardware delivery with performance and reliability that exceed customer expectations. They design, control, and improve the manufacturing process and system design through a collaborative effort with the Integrated Product Team. You will apply your skills to implement improvements that reduce cycle time and cost and improve productivity, while maintaining a high level of safety in the manufacturing environment and quality within the product.
This role will be on site in Fairfield, CA. This role may be eligible for relocation.
What You Will Do

• Support a manufacturing area as part of a cross-functional team by guiding the production team through process troubleshooting and incorporation of engineering changes.
• Identify opportunities and implement changes to improve products or reduce costs using knowledge of fabrication processes, tooling design, production equipment, assembly methods, quality control standards, and product designs.
• Work as part of a cohesive team with test engineering, product engineering, system engineering, program management and Operations.
• Communicate effectively within and outside of own team to explain facts, policies, and practices of the work area.
• Lead corrective action investigations to prevent recurrence.
• Adhere to all EHS practices and standards across the site, including but not limited to proactive reporting of observed hazards and recommendations to ensure the safety and well-being of self and others.
• All other duties as assigned.

Qualifications You Must Have

• Typically requires a University Degree and minimum 2 years of prior relevant experience or an Advanced Degree in a related field
• Must have the ability to obtain and maintain Alcohol, Tobacco, Firearms and Explosives (ATF) access.
• U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract

Qualifications We Prefer

• Mechanical Engineering background highly preferred.
• Proficiency with CAD solid modeling tools (preference for Solid Works) and/or simulation tools.
• Experience with designing, programming, maintaining, and troubleshooting automated tooling and machinery.
• Experience with military and industry standards.
• Solid interpersonal skills - ability to communicate and influence at all levels within an organization.
• Prior experience in Explosives and/or Energetics.
• Experience with Lean Manufacturing, Continuous Improvement, and Problem-Solving Methodologies.
• Experience with Geometric Dimensioning and Tolerancing (GD&T).

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 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!
Operations, Supply Chain and EH&S:
The next chapter of our future as an aerospace company is here, and we are excited about what this means for our employees and customers! Get onboard the Collins Aerospace Operations team and play a part in managing our innovative products from inception to delivery. The Operations team continues to grow and aims to strengthen the connection of Manufacturing Operations, Supply Chain and Environment, Health & Safety (EH&S) across Collins Aerospace. In this dynamic environment, you will have the opportunity to network across our businesses and functions, all while improving the productivity, quality and efficiency of our operations worldwide.
Collins Aerospace, a RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio and expertise to solve customers' toughest challenges and to meet the demands of a rapidly evolving global market.
WE ARE REDEFINING AEROSPACE.
*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.
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 75,800 USD - 144,200 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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