Employee Relations Manager

Mammoth Distribution; Los Angeles (CA); On-site; USD 110,000 - 120,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Life insurance

Paid time off

Company holidays

Employee assistance program

Job summary

Mammoth Distribution in Los Angeles is hiring an Employee Relations Manager to own investigations, performance management, and coaching for our hourly Operations teams. Reporting to the CHRO, you will lead defensible workplace investigations, guide managers through PIPs and corrective actions, and drive culture initiatives across the company.

We seek someone with 5+ years in HR, 3+ years in employee relations in California, and proven capability to manage confidential matters with neutrality.

Qualifications

• 5+ years of HR experience, including 3+ years focused on employee relations for hourly workforces
• Experience leading and documenting workplace investigations end to end
• Employee relations experience in California
• Experience guiding managers through PIPs, corrective action, and terminations
• Working knowledge of federal and California employment law
• Understanding of investigation standards and credibility factors
• Strong written documentation and case management skills
• Ability to stay neutral and credible with all parties
• Experience facilitating training and leading groups
• HRIS, case-tracking tools, and basic reporting proficiency
• Bachelor's degree in HR, organizational psychology, or related field preferred
• SHRM-CP/SCP, PHR/SPHR, or AWI trained preferred
• Experience delivering employee engagement or culture programs a plus
• Experience in cannabis or regulated/high-growth environments a plus

Responsibilities

• Lead intake, planning, and investigation of workplace complaints in Operations, including harassment, discrimination, retaliation, and misconduct
• Interview complainants, respondents, and witnesses; assess credibility and write defensible findings reports and closure letters
• Maintain a complete case log and documentation for every employee relations matter
• Escalate matters with potential legal exposure to the CHRO with a clear summary of facts and risks
• Advise Operations managers on documentation, PIPs, final warnings, and termination readiness
• Prepare and review PIPs, warning documents, and termination risk reviews before action
• Coach managers through difficult conversations and build their ability to handle performance and conduct issues
• Build and deliver manager training on feedback, documentation, and accountability
• Track ER trends across Operations and deliver quarterly reports to CHRO
• Partner with Operations leaders on talent and organizational effectiveness reviews
• Own companywide culture initiatives, events, and recognition programs from planning to execution
• Collaborate with leaders to drive employee participation and engagement

Skills

Employee relations

Workplace investigations

CA employment law

PIPs & corrective action

HRIS & reporting

Training & coaching

Neutral communication

Education

Bachelor's degree

Job description

Compensation

$110,000 - $120,000 / year

Pay: $110,000–$120,000/year

$110,000 – $120,000 / year, based on experience

Application Deadline: 28 January 2027

Department: People & Culture

Location: North Hollywood, CA

Description

Pay: $110,000–$120,000/year

Type: Full-Time | Monday–Friday

Location: North Hollywood, CA (4 days On-Site, 1 Remote)

Benefits: Medical, Dental, Vision, Life Insurance after 60 days

Mammoth Distribution is one of California's leading cannabis manufacturers and distributors, delivering brands like Heavy Hitters and Papa & Barkley to dispensary accounts statewide. We're hiring a full-time Employee Relations Manager in North Hollywood to own employee relations, workplace investigations, performance management, and manager coaching across our Operations teams (Production, Manufacturing, Facilities, Lab, Quality Control, Inventory, Distribution, and Transportation), and to lead culture initiatives companywide. Reporting to our Chief Human Resources Officer, you'll run thorough, defensible investigations, guide managers through PIPs and corrective action, and build their confidence to address performance on their own. If you have 5+ years in HR, including 3+ years of hands‑on employee relations for hourly workforces in California, and have led workplace investigations end to end, we'd like to hear from you.

Located in the San Fernando Valley, convenient to Burbank, Studio City, Van Nuys, Glendale, and Sherman Oaks.

What You'll Do

• Lead intake, planning, and investigation of workplace complaints in Operations, including harassment, discrimination, retaliation, and misconduct
• Interview complainants, respondents, and witnesses; make credibility determinations and write clear, defensible findings reports and closure letters
• Maintain a complete case log and supporting documentation for every employee relations matter
• Escalate matters with potential legal exposure to the CHRO promptly, with a clear summary of facts and risks
• Advise Operations managers on documentation, performance improvement plans (PIPs), final warnings, and termination readiness
• Prepare and review PIPs, warning documents, and termination risk reviews before action is taken
• Coach managers through difficult conversations and build their ability to handle performance and conduct issues directly
• Build and deliver manager training on feedback, documentation, and accountability
• Track employee relations trends across Operations, flag patterns by team or manager, and deliver a quarterly ER trend report to the CHRO
• Partner with Operations leaders on talent and organizational effectiveness reviews
• Own companywide culture initiatives, events, and recognition programs from planning through execution, including budgets, logistics, and vendors
• Partner with leaders across all departments to drive employee participation and engagement

What You’ll Bring

• 5+ years of HR experience, including 3+ years focused on employee relations for hourly workforces
• Experience leading and documenting workplace investigations end to end
• Employee relations experience in California
• Experience guiding managers through PIPs, corrective action, and terminations
• Working knowledge of federal employment law (Title VII, ADA, ADEA, FMLA, FLSA, NLRA) and California employment law (FEHA, CFRA, harassment-training, and final-pay requirements)
• Understanding of investigation standards, including preponderance of evidence, credibility factors, and retaliation prevention
• Precise, consistent written documentation and strong case management skills across many open matters
• Ability to stay neutral and credible with all parties, deliver candid feedback, and influence without direct authority
• Experience facilitating training and leading groups
• Working proficiency with HRIS, case‑tracking tools, and basic reporting
• Bachelor's degree or equivalent work experience; degree in HR, organizational psychology, or a related field preferred
• SHRM-CP/SCP, PHR/SPHR, or workplace investigator training (such as AWI) preferred
• Experience planning and delivering employee engagement or culture programs preferred
• Experience in cannabis or another regulated or high‑growth CPG environment a plus

Physical Requirements

• Ability to work on a computer for at least eight (8) hours per day
• Regular presence on production and warehouse floors; comfortable in office, warehouse, and occasional field environments, where temperatures may vary
• Ability to sit or stand for extended periods, including standing to facilitate training
• Ability to lift up to 25 lbs.
• Clear communication skills, plus vision and hearing sufficient to perform job duties, with or without reasonable accommodation

Compensation & Benefits

• $110,000 – $120,000 / year, based on experience
• Medical, dental, vision, and life insurance — eligible after 60 days
• Full-time schedule, on-site in North Hollywood, CA 4 days per week

Also relevant if you have experience as: Employee Relations Specialist, Senior Employee Relations Specialist, Employee Relations Partner, Employee Relations Lead

What We Bring

• Medical/Dental/Vision Insurance Paid Company Holidays
• Paid Time Off Employee Assistance Program
• Complimentary Life Coach