Sr. Mechanical Engineer - Hollow Metal - Fontana, CA

Creating Peace of Mind by Pioneering Safety and Security

At Allegion, we help keep the people you know and love safe and secure where they live, work and visit. With more than 40 brands, 14,000+ employees globally and products sold in 130 countries, we specialize in security around the doorway and beyond. 

Additionally, Allegion is proud to be recognized with the 2026 Gallup Exceptional Workplace Award (GEWA) for the third consecutive year, earning distinction in both the employee engagement and strengths categories. This year, Allegion also received Gallup’s With Distinction honor — a designation reserved for a select group of organizations that go above and beyond in building exceptional workplace cultures.

Sr. Mechanical Engineer - Hollow Metal - Fontana, CA

The Sr. Mechanical Engineer is responsible for the design and development of new and improved products. This position is located at Allegion Hollow Metal (DCI) in Fontana, CA. DCI Hollow Metal on Demand is the nationwide leader in custom hollow metal and commercial steel doors and frames. As a Sr. Mechanical Engineer, you will support New Product Engineering deliverables including business case development, concept generation, design development, design analysis, creating formal documentation, testing, and other engineering tasks.

Onsite: At Allegion, we are driven by a bold vision: redefining safety while empowering our employees to thrive. When you join our team, you become part of a culture that values innovation, purpose, and excellence. This role is an onsite position based in our Fontana, CA facility, offering the opportunity for hands-on engineering work and in-person collaboration for meaningful moments. We are committed to fostering a healthy work-life balance and building meaningful connections, ensuring you have the tools, resources, and support needed to excel in your environment. Together, we’ll unlock your potential and create a lasting impact.

Qualified candidates must be legally authorized to be employed in the United States. The company does not intend to provide sponsorship for employment visa status (e.g., H-1B, TN, etc.) for this employment position.

What You Will Do:

• Conceive, design, develop, and analyze new and improved products.
• Improve upon current designs by reducing cost and increasing robustness and reliability.
• Communicate project status through reports, presentations, and design reviews.
• Perform project tasks to ensure that projects are completed within acceptable time and cost targets, making design trade-offs to ensure the lowest overall cost, highest reliability, and best performance.
• Provide capable project/task leadership and collaborate effectively with a cross-functional team.
• Work with vendors to source and evaluate purchased components and with manufacturing to produce or assemble manufactured components and assemblies.
• Support product test development and execution.
• Participate in and support engineering projects across our other Allegion Hollow Metal manufacturing sites located in Southern CA (Chino & Pico Rivera).

What You Need to Succeed:

• BS or MS in Mechanical Engineering (Required)
• 5+ years of engineering experience, including at least 3 years in new product development (Required)
• Proficiency with engineering tools including FMEA, Root Cause Analysis, GD&T, Tolerance Stack Analysis & DFM/DFA (Required)
• Understanding of Hollow Metal Doors & Frames manufacturing processes, including: Sheet Metal Fabrication (Cutting & Punching), Roll Forming & Press Brakes, Core Bonding & Pressing, Welding & Assembly, Hardware Preparation & Integration, Finishing & Paint Systems, and Design for Manufacturing (DFM) – (Required)
• Ability to perform structural and motion calculations and identify appropriate materials, processes, and designs (Required)
• CAD modeling and drafting proficiency, SolidWorks (Preferred)
• Design for Six Sigma proficiency (Preferred)

Why Work for Us?

Allegion is a Great Place to Grow your Career if: 

• You're seeking a rewarding opportunity that allows you to truly help others.  With thousands of employees and customers around the world, there’s plenty of room to make an impact. As our values state, “this is your business, run with it”.
• You’re looking for a company that will invest in your professional development.  As we grow, we want you to grow with us. 
• You want a culture that promotes work-life balance.  Our employees enjoy generous paid time off, because at Allegion we recognize that you have a full life outside of work! 

Why Work for Us?

Allegion is a Great Place to Grow your Career if: 

• You're seeking a rewarding opportunity that allows you to truly help others.  With thousands of employees and customers around the world, there’s plenty of room to make an impact. As our values state, “this is your business, run with it”.
• You’re looking for a company that will invest in your professional development.  As we grow, we want you to grow with us. 
• You want a culture that promotes work-life balance.  Our employees enjoy generous paid time off, because at Allegion we recognize that you have a full life outside of work! 
• You want to work for an award-winning company that invests in its people. Allegion is proud to be a recipient of the Gallup Exceptional Workplace Award for the second year in a row, recognizing our commitment to employee engagement, strengths-based development, and unlocking human potential.

What You’ll Get from Us:

• Health, dental and vision insurance coverage, helping you “be safe, be healthy”  
• Unlimited Paid Time Off
• A commitment to your future with a 401K plan, which currently offers a 6% company match and no vesting period 
• Health Savings Accounts – Tax-advantaged savings account used for healthcare expenses
• Flexible Spending Accounts – Tax-advantaged spending accounts for healthcare and/or dependent daycare expenses
• Disability Insurance –Short-Term and Long-Term coverage, paid for by Allegion, provides income replacement for illness or injury
• Life Insurance – Term life coverage with the option to purchase supplemental coverage
• Tuition Reimbursement  
• Voluntary Wellness Program – Simply complete wellness activities and earn up to $2,000 in rewards
• Employee Discounts through Perks at Work 
• Community involvement and opportunities to give back so you can “serve others, not yourself” 
• Opportunities to leverage your unique strengths through CliftonStrengths assessment & coaching 

Compensation: This range is provided by Allegion. Your actual pay will be based on your skills and experience.

• The expected Base Salary Range: $122,700 - $141,700.  The actual compensation will be determined based on experience and other factors permitted by law.

Apply Today!

Join our team of experts today and help us make tomorrow’s world a safer place!

Not sure if your experience perfectly aligns with the role? Studies have shown that some people are less likely to apply to jobs unless they meet every single qualification and every single preferred qualification of a job posting. At Allegion, we are dedicated to building a diverse, inclusive, and authentic workplace. So, if you’re excited about this role but your past experience doesn’t align perfectly with every item in the job description, we encourage you to apply anyway. You may be just the right candidate for this role.

We Celebrate Who We Are! 

Allegion is committed to building and maintaining a diverse and inclusive workplace.  Together, we embrace all differences and similarities among colleagues, as well as the differences and similarities within the relationships that we foster with customers, suppliers and the communities where we live and work. Whatever your background, experience, race, color, national origin, religion, age, gender, gender identity, disability status, sexual orientation, protected veteran status, or any other characteristic protected by law, we will make sure that you have every opportunity to impress us in your application and the opportunity to give your best at work, not because we’re required to, but because it’s the right thing to do.   We are also committed to providing accommodations for persons with disabilities. If for any reason you cannot apply through our career site and require an accommodation or assistance, please contact our Talent Acquisition Team.

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