Engineering Intern

Engineering Intern

Cornerstone Building Brands, headquartered in Cary, North Carolina, is the largest manufacturer of external building products in North America with over $6 billion in annual revenue and an expansive North American footprint that includes almost 20,000 employees, operating in +70 manufacturing facilities, supported by a network of +80 distribution and branch office facilities. We have a broad product offering with a well-regarded brand portfolio including the #1 position in windows, vinyl siding, metal accessories, and metal roofing and wall systems. We believe every building we create, and every part of that building, positively contributes to communities where people live, work and play.

This internship is for Summer 2026. The Engineering Intern at Cornerstone Building Brands is responsible for performing engineering projects related to the continuous improvement of production, production control, and/or quality. Reporting directly to the Production Manager, this role will be on site at our Ply Gem Windows plant in Auburn, WA.

Primary projects include:

1. Create a Standard Work for every position in plant
2. Conduct time studies on every position in the plant
3. Create a balance Chart for every line in the plant

Additional activities may include:

• Creating process flows
• Process mapping
• Creating layouts
• Test equipment design/improvement
• Non-conforming material inspection, auditing and test processes

Must be currently enrolled in and pursuing a degree in Electrical, Manufacturing, Industrial, or Mechanical Engineering at an accredited school.

Experience with with AutoCad, Inventor, or Solid works will be an advantage

Experience in data interpretation/manipulation via MS Excel preferred

Experience in a manufacturing environment is preferred but not required, although a demonstrable interest in industrial processes will be evaluated during the interview process. Students with any level of experience are encouraged to apply.

Interns will work in office and shop floor environments with extended periods of sitting and standing. Must be able to communicate and engage with employees on the shop floor. Must be able to wear all required Personal Protective Equipment (PPE).

Must have valid US work authorization.

Hands-on experience working on real-world projects with direct impact on business operations.

Mentorship and guidance from experienced professionals in the field of continuous improvement.

Networking opportunities with colleagues and industry professionals.

Competitive internship compensation package.

Our teams are at the heart of our purpose to positively contribute to the communities where we live, work and play. Full-time* team members receive** medical, dental and vision benefits starting day 1. Other benefits include PTO, paid holidays, FSA, life insurance, LTD, STD, 401k, EAP, discount programs, tuition reimbursement, training, and professional development.

*Full-time is defined as regularly working 30+ hours per week. **Union programs may vary depending on the collective bargaining agreement.

Cornerstone Building Brands 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, pregnancy, genetic information, disability, or status as a protected veteran. You can find the Equal Employment Opportunity Poster here.

All your information will be kept confidential according to EEO guidelines.

Notice of Recruitment Fraud. We have been made aware of multiple scams whereby unauthorized individuals are using Cornerstone Building Brand's name and logo to solicit potential job-seekers for employment. In some cases, job-seekers are being contacted directly, both by phone and e-mail. In other instances, these unauthorized individuals are placing advertisements for fake positions with both legitimate websites and fabricated ones. These individuals are typically promising high-paying jobs with the requirement that the job-seeker send money to pay for things such as visa applications or processing fees. Please be advised that Cornerstone Building Brands will never ask potential job-seekers for any sort of advance payment or bank account information as part of the recruiting or hiring process.