Human Resource Supervisor

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.

About the Role

Core Responsibilities


* Directly supervise Lead Admins and Admins responsible for payroll and timekeeping functions.


* Provide payroll oversight and supervision, ensuring accurate execution of payroll processes.


* Partner with finance/payroll teams to resolve complex pay issues, reconcile discrepancies, and maintain audit readiness


* Serve as site owner for UKG, Attendance/Discipline, and FMLA administration systems across an 800+ employee union workforce.


* Partner with operations and HR leadership during union negotiations, contract language review, and bargaining preparation.


* Partner with IT and corporate HRIS teams on system enhancements, integrations, and cross-functional reporting.


* Serve as a primary operational contact for employee benefits administration, including medical, dental, vision, retirement, and related programs.


* Coordinate with external benefits vendors to resolve escalated issues and ensure service accuracy.


* Lead and execute employee engagement strategies, cross-shift recognition programs, and culture initiatives.


* Lead or support new hire orientation and HR policy training.

What you can bring to the role

Our values – act with integrity, operate with excellence, care for people, lead with courage – are at the foundation of everything we do.

To be successful in this role and to play a part in our ongoing success we desire the following background:



* Bachelor’s degree in Human Resources, Business, or related field required.


* 5–10+ years progressive HR experience within manufacturing and/or unionized environments.


* Demonstrated experience in labor relations leadership including grievances, CBA interpretation, and arbitration preparation preferred.


* Advanced analytical capability (Excel modeling, HRIS reporting, workforce data analysis).


* Strong working knowledge of federal leave law (FMLA/ADA), employment regulations, and compliance governance.


* Experience supporting benefits administration and compliance processes.


* HR certification preferred (SHRM‑CP or PHR); SHRM‑SCP or SPHR


* Availability to support a 24/7 multi‑shift workforce when needed, including early mornings, evenings, or extended hours.


* Kronos and Workday experience preferred

What’s On Offer

At Alcoa, our care for people philosophy is backed by our excellent total rewards package that we provide our employees effective on your date of hire, such as:



* Competitive compensation packages, including pay-for-performance variable pay, recognition and rewards programs


* 401(k), employer match up to 6%, additional employer retirement income contribution (no vesting period)


* Healthcare benefits: medical...