HR Manager in Covina,CA, California at SEIZMIC INC

Human Resources Manager

Location: Covina, CA (In-Office)
Department: People & Culture
Employment Type: Full-Time

Help Build the Future of Our People and Our Company

At Seizmic, we believe our people are our greatest investment. We're looking for an experienced, hands-on Human Resources Manager who thrives in a fast-paced manufacturing environment and enjoys balancing strategic initiatives with day-to-day HR operations.

This is an opportunity to lead the entire employee experience while partnering directly with company leadership to build a positive workplace culture, maintain compliance, develop leaders, and support continued organizational growth.

If you're someone who enjoys solving problems, coaching leaders, navigating complex employee relations, and creating processes that make organizations stronger, we'd love to meet you.

What You'll Do

As our Human Resources Manager, you'll oversee all aspects of Human Resources while supervising one HR Generalist. Your responsibilities will include:

Employee Relations & Leadership

• Serve as a trusted advisor to managers and employees.
• Conduct workplace investigations and resolve employee relations matters.
• Coach managers through performance management, corrective action, and employee development.
• Draft disciplinary documentation and ensure fair, consistent application of company policies.

Compliance & Risk Management

• Ensure compliance with California labor laws, federal employment regulations, and HR best practices.
• Maintain company policies, employee handbook, and required workplace postings.
• Partner with leadership on risk management and organizational compliance.
• Support OSHA compliance initiatives alongside Safety leadership.

Benefits & Workers' Compensation

• Administer employee benefits programs and annual Open Enrollment.
• Serve as the primary contact for benefit vendors and employee questions.
• Manage workers' compensation claims and return-to-work processes.

Performance Management

• Lead the company's performance management process, including:
  • 90-day new hire reviews
  • Annual performance evaluations
  • Ongoing manager check-ins
• Partner with leadership on compensation recommendations, performance improvement plans, and employee development.

Employee Engagement

• Develop initiatives that strengthen workplace culture and employee engagement.
• Support internal communications and company-wide programs.
• Help create an environment where employees can succeed and grow.

HR Operations

• Supervise and develop one HR Generalist.
• Manage Paylocity and HR systems.
• Oversee onboarding, offboarding, employee records, reporting, and HR documentation.
• Develop HR strategies that support company growth and operational excellence.

What We're Looking For

Required Qualifications

• Bachelor's degree in human resources, Business Administration, or a related field, or equivalent experience.
• Four or more years of progressive Human Resources experience.
• Strong knowledge of California employment law and federal labor regulations.
• Experience managing employee relations, benefits administration, workers' compensation, and HR compliance.
• Excellent communication, organization, and problem-solving skills.
• Ability to maintain confidentiality and exercise sound judgment.

Preferred Qualifications

• Experience supporting manufacturing, engineering, or industrial environments.
• SHRM-CP, SHRM-SCP, PHR, or SPHR certification.

Why Join Seizmic?

At Seizmic, you'll have the opportunity to make a meaningful impact on the organization every day. This isn't a role where you'll simply maintain HR processes. You'll help shape our culture, develop our leaders, improve employee engagement, and contribute to the continued success of a growing company.

If you're looking for a position where your ideas matter, your expertise is valued, and your work directly influences the employee experience, we'd love to hear from you.

Apply today and help us build a workplace where great people do their best work.