Production Supervisor
Smurfit Westrock · Ontario, CA
- Level
- Supervisor
- Team
- Production
- Degree
- Preferred
- Experience asked
- 3+ years
- Certification
- Black Belt preferred
- Industry
- Packaging
- Posted
- 30+ days ago
The role in 30 seconds
A supervisor production role at Smurfit Westrock (packaging) in Ontario, CA. In this role you will communicate performance expectations to ensure production targets and metrics are met, achieve production demands, supervise machine productivity and quality, as well as supervising, coaching, and mentoring of team members.
- They ask for
- 3+ years · degree preferred · Black Belt preferred
- Tools it names
- Lean, Six Sigma, Black Belt
Read from the posting. The full description is below.
From the plant jobs report · week of November 2, 2026
Production Supervisor roles in California: typical posted base $87k–$107k.
Median of the low and high ends of 32 live postings that list pay, out of 62 production supervisor openings in California, read from manufacturers' own careers sites.
California plant jobs report →Pay by team and state →What moves pay →
How this role compares
Against 77 other live production postings in California.
- Base pay
- Not listed in this posting
- Experience asked
- Typical (3+ years)
Typical $84k–$101k, from 27 postings that list pay.
Similar roles usually ask 3+ years.
Skills these teams ask for most
- ✓ Team leadership 72%
- ✓ Lean 58%
- 5S 23%
- EHS / safety 21%
- Root cause 21%
- Validation (IQ/OQ/PQ) 21%
✓ = this posting asks for it too. % = share of similar postings that mention it.
Stands out: this posting asks for Six Sigma, Black Belt, which few similar roles mention. If you have it, lead with it.
At a glance
Pulled from the posting text. If it's not listed here, the posting didn't say.
How to get in at this plant
Five moves over a week or two. The first one takes ten minutes.
- 1
Pick 2–3 people on the Production team at Smurfit Westrock
Engineers who joined in the last year or two reply the most. Use the team search on this page to find them.
- 2
Send a short, curious note
One real question about their work. No favors yet. Each person gets a different note, written for this role.
- 3
Turn a reply into a short call
Questions worth asking about this team:
- What does a normal week look like on your team?
- The posting mentions a Black Belt. Does the company sponsor certification?
- How did you land the job? What stood out in your interviews?
- 4
Apply with someone vouching for you
If the call went well, ask whether they’d pass your résumé to the hiring manager. Send your résumé link, apply that day, and let them know.
- 5
Bring proof to the interview
One page of before-and-after numbers from projects you led: scrap, OEE, cycle time, cost. Plant managers hire on results.
Production Supervisor at Smurfit Westrock in other locations
Smurfit Westrock lists this title in 13 places. Pick the plant you can get to.
Full description from Smurfit WestrockAs posted on their careers site.ShowHide
The Opportunity
The Converting Supervisor will be responsible for the safe and efficient operations of production within the Corrugated Container facility. In this role you will communicate performance expectations to ensure production targets and metrics are met, achieve production demands, supervise machine productivity and quality, as well as supervising, coaching, and mentoring of team members.
How you will impact Smurfit Westrock
- •Execute safety briefs to team members on designated shift, daily, weekly, monthly and annually
- •Monitor workplace safety environment to identify and address any unsafe conditions
- •Ensure compliance with company safety policies, safe work practices, and plant policies
- •Monitor and track production daily goals for the Converting machines utilizing Key Performance Indicators (KPIs) and report results on the plant scorecard
- •Manage workforce planning, including fulfillment of work schedules and adherence to attendance policies (vacations, floating days, call ins, etc.)
- •Communicate effectively with all functional areas of the plant to ensure all production needs are successfully achieved
- •Promote positive employee relations and interdepartmental communication and collaboration
- •Supervise daily production activities, including oversight of team members, and monitor performance levels of each team member
- •Monitor and participate in Daily Management Systems (DMS) to track progress against production goals and enable performance excellence
Show full description ↓Show less ↑
to succeed
- •High School diploma or G.E.D. – Required
- •Bachelor’s degree (Business Management, Engineering or Operations Management) - Preferred
- •3+ years of converting supervisory experience in a packaging facility – Required.
- •Experience working in a Lean environment; Six Sigma Green or Black Belt Certification.
- •Proven experience in operations, manufacturing, or supply chain
- •Excellent communication and listening skills.
- •Proven track record of effective problem-solving
- •Ability to embrace continuous improvement.
- •Strong collaboration and teaming skills with stakeholders across functions
- •Ability to coach and train employees
- •Ability to be an on-shift resource for troubleshooting problems in the process as well as maintenance issues.
- •Ability to make independent, effective decisions.
- •Possess the ability to be a self-directed team player.
- •Flexibility to work multiple shifts.
What we offer
- •Corporate culture based on integrity, respect, accountability, and excellence.
- •Comprehensive training with numerous learning and development opportunities.
- •An attractive salary reflecting skills, competencies, and potential.
- •Benefits package to include medical, dental, vision, life insurance, 401k with match and more!
- •A career with a global packaging company where Sustainability, Safety and Inclusion are business drivers and foundational elements of the daily work.