CNC Machinist/Operator

Shape Your World

At Alcoa, you will become an essential part of our purpose: to turn raw potential into real progress. The way we see it, every Alcoan is a work-shaper, team-shaper, idea-shaper & world-shaper.

Alcoa is a global industry leader in the production of bauxite, alumina and aluminum, a position enhanced by a portfolio of value-added cast products and select energy assets. Since developing the aluminum industry more than 135 years ago, Alcoa has built a legacy of breakthrough innovations and best practices that have led to efficiency, safety, sustainability, and stronger communities wherever we operate. We offer competitive pay, excellent benefits (401K matching, paid holidays, paid time off, company-provided short-term and long-term disability insurances) as well as a path to personal growth & advancement!


This is your opportunity to shape your career through the skills and experience you bring to the role now and by training for the roles you may want in the future. Our success depends on great teams, where you can thrive and do your best work in a supportive environment.

About the Role (Essential Duties and Responsibilities):

• Provide machinist support for vacation coverage and off‑schedule needs, ensuring continuity of operations across the machine shop.

• Assist experienced machinists with basic machining tasks, part handling, shop organization, and routine measurements.

• Rotate into other operational areas, supporting technicians in pressing activities as well as, kiln loading/unloading, QC tasks, and general process activities as required.

• Exhibit flexibility to move between machining work and cross‑functional operational duties.

• Follow all established safety protocols and PPE requirements.

• Support basic documentation of process steps and part data entry.

• Maintain a clean, safe, and organized work environment and assist with routine equipment care.

• Willing to work overtime as needed to meet project or coverage demands.

• Demonstrate a learning mindset and actively build machining and operational skills through hands‑on tasks and mentoring.

What you can bring to this role:

• High school diploma, GED, or trade school degree in a mechanical, manufacturing, or technical field (baseline requirement).

• Additional technical coursework or machine-related training (CNC operation)

• Mechanical aptitude.

• Ability to perform material handling, weighing, completing process steps in sequence, and documenting process data.

• Able to lift 60 lbs. from waist level as needed.

• Skilled in identifying problems during standard operations on equipment and processes.

• Ability to complete required tasks to achieve weekly objectives with periodic review of progress and results.

Special Instructions:

• Wear task specific PPE.

• Comfortable working in a relatively noisy environment.

• Flexible with schedule changes.

• The ability to work a 12-hour rotating shift, including weekends & holidays.

What we offer:

• Shift differentials, overtime & holiday pay

• 120 hours of paid vacation per year (pro-rated based on hire date your first year).

• Alcoa provides 12 paid holidays per year.

• 56 hours of sick/safe leave provided each year in January (pro-rated from hire date).

• Flexible spending accounts and generous employer contribution to the HSA

• 401(k), employer match up to 6%, additional employer retirement income contribution (no vesting period), and a non-qualified deferred compensation plan

#LI-TL2

About the Location

Every day is a new and exciting challenge at the Alcoa Technical Center in New Kensington, PA, just north of Pittsburgh. We develop new technologies with our Breakthrough Technologies team that has the potential to impact the life of millions of people and foster the sustainable footprint from Alcoa to the world. It was here where we developed the technology recently announced in partnership with Rio Tinto, called ELYSIS™, where we will produce aluminum with ZERO emission of greenhouse gases. In fact, we will actually be generating oxygen to our atmosphere during the aluminum production process– a revolution to the aluminum industry!

We are values led, vision driven and united by our purpose of transforming raw potential into real progress. Our commitments to Inclusion, Diversity & Equity include providing trusting workplaces that are safe, respectful and inclusive of all individuals, free from discrimination, bullying and harassment and that our workplaces reflect the diversity of the communities in which we operate.

As a proud equal opportunity workplace and affirmative action employer, Alcoa is dedicated to providing equal opportunities and equal access to all individuals regardless of a person’s gender, age, race, ethnicity, sexual orientation, gender identity, religion, nation of origin, disability, veteran status, language spoken or any other characteristic or status protected by the laws or regulations in the places where we operate.

If you have visited our website in search of information on U.S. employment opportunities or to apply for a position, and you require an accommodation, please contact Alcoa Recruiting via email at

[email protected].

This is a place where you are empowered to do your best work, be your authentic self, and feel a true sense of belonging. Come join us and shape your career!

Your work. Your world. Shape them for the better.