Plant Human Resources Manager

LHH Recruitment Solutions has partnered with a growing organization, and they are seeking a motivated Plant Human Resources Manager – Union Industrial Manufacturing to join their team. This role will lead site-level HR and labor relations activities for a unionized plant. This is a highly visible opportunity for someone who enjoys building strong employee relationships, influencing positive change, and driving both HR and operational excellence. The successful candidate will serve as the primary HR resource for the facility, partnering closely with plant leadership and employees while providing strategic and day-to-day support across labor relations, recruitment, benefits, compliance, safety, and employee engagement. This is an opportunity to make a meaningful impact, improve processes, and help shape the future of a growing manufacturing operation.

Why Consider This Opportunity?

• High-visibility HR Manager role with significant influence.
• Opportunity to shape and improve HR programs and processes.
• Broad scope covering labor relations, talent acquisition, benefits, compliance, and safety.
• Stable manufacturing environment with a strong operational footprint.
• Ability to make a meaningful impact on employee engagement and site culture.

Key Responsibilities:

• Serve as the primary HR leader and trusted advisor for a unionized manufacturing facility.
• Administer and enforce collective bargaining agreements while maintaining productive labor-management relationships.
• Lead employee relations activities, including grievance management, investigations, disciplinary actions, and conflict resolution.
• Partner with union representatives to address workplace concerns and ensure contractual compliance.
• Provide front-line HR support to plant employees and supervisors in a highly visible, floor-based environment.
• Manage full-cycle recruitment efforts for hourly and salaried positions across operations, engineering, quality, maintenance, and support functions.
• Oversee onboarding, orientation, employee development, retention initiatives, and workforce planning.
• Administer employee benefits programs, annual open enrollment, workers' compensation processes, and retirement-related programs.
• Support payroll, HRIS maintenance, reporting, and HR compliance activities.
• Lead site safety initiatives and chair the facility safety committee.
• Act as a key point of contact during workplace safety incidents and ensure compliance with OSHA standards and company policies.
• Drive continuous improvement of HR programs, policies, procedures, and employee engagement initiatives.
• Collaborate with leadership to support organizational change, workforce development, and succession planning.
• Assist with HR systems enhancements and support future HRIS implementations and process improvements.

Qualifications and Skills:

• Bachelor's Degree in Human Resources, Business Administration, or a related field.
• Minimum of 5 years of progressive Human Resources experience within a manufacturing, industrial, or plant environment.
• Demonstrated experience serving as a stand-alone HR professional or member of a small HR team with significant independent responsibility.
• Strong labor relations experience in a unionized environment.
• Proven experience handling grievances, contract interpretation, investigations, and collective bargaining agreement administration.
• Solid understanding of employment law, employee relations, and HR best practices.
• Experience supporting recruiting, benefits administration, workers' compensation, and compliance programs.
• Knowledge of OSHA regulations and workplace safety practices.
• Experience with HRIS platforms; ADP Workforce Now experience strongly preferred.
• Prior HRIS implementation experience is highly desirable.
• Strong organizational skills with exceptional attention to detail and the ability to manage multiple priorities in a fast-paced environment.
• Experience within aerospace, defense, advanced manufacturing, metals, machining, or other highly regulated industrial environments.

Compensation Range: $90,000 - $125,000

Benefits Offered: 3 weeks of vacation, paid sick leave where applicable by state law, Medical Insurance, Dental Insurance Vision Insurance, 401K, and Life Insurance.

If you are a passionate Plant Human Resources Manager looking for a new and rewarding career, please apply today!You don’t want to miss out on this opportunity!

LHH is a leader in permanent recruitment—and in the placement of top talent. Our areas of specialty include office administration, customer service, human resources, engineering, and supply chain and logistics. Please feel free to check us out and apply for other opportunities if this role isn’t a perfect match.

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• The California Fair Chance Act
• Los Angeles City Fair Chance Ordinance
• Los Angeles County Fair Chance Ordinance for Employers
• San Francisco Fair Chance Ordinance