What are the main duties of a Human Resources Manager?

Core duties include: manage full-cycle recruitment for production, maintenance, and skilled-trade positions — job posting, screening, interviewing, offer management, and new hire onboarding; administer benefits programs: health insurance open enrollment, 401(k) plan management, FMLA and leave administration, and workers' compensation claims coordination; and handle employee relations: investigate complaints and policy violations, document findings, recommend and implement disciplinary actions consistently with policy and labor law.

What HR certifications are most valuable in manufacturing?

SHRM-CP and SHRM-SCP (Society for Human Resource Management) and HRCI's PHR and SPHR are the two main credential bodies, and either path is respected. In manufacturing, labor relations experience and NLRA knowledge add specific value beyond the general HR credentials. For HR managers at unionized plants, credibility often comes from demonstrated experience administering CBAs and handling grievances more than from certification.

How is manufacturing HR different from office HR?

Manufacturing HR deals with a larger hourly workforce, more complex scheduling (shifts, overtime, rotating schedules), higher turnover rates in some roles, stronger union presence than most office environments, workers' compensation complexity from physical hazards, and a workforce where English may be a second language for a significant portion. The disciplinary volume is typically higher, the pace of the function is faster, and the proximity to operations is closer than in a typical corporate HR role.

What is a grievance procedure and how does an HR manager handle it?

A grievance procedure is the contractual process in a unionized workplace for an employee (or the union on their behalf) to formally dispute a management action they believe violates the collective bargaining agreement. HR managers receive and respond to grievances at each contractual step — typically starting at the supervisor level and escalating to plant manager and then arbitration if unresolved. Handling grievances well requires knowing the contract language, maintaining documentation, and resolving legitimate complaints quickly while defending management's position on legitimate exercises of discretion.

What is the FLSA and why does it matter more in manufacturing than in office settings?

The Fair Labor Standards Act governs minimum wage, overtime, and exempt/non-exempt classification. In manufacturing, most hourly production workers are non-exempt and entitled to overtime pay for hours over 40/week. FLSA compliance matters here because the workforce is large, hours are variable, shift work creates schedule complexity, and off-the-clock violations (requiring pre-shift work before clocking in, for example) are common violation patterns in production environments. A wage and hour class action in manufacturing can be extremely expensive.

How is AI changing HR in manufacturing?

AI tools are improving resume screening, candidate matching, and initial applicant communication in manufacturing recruiting — helping HR teams manage high-volume hourly hiring more efficiently. Employee scheduling platforms with AI optimization are reducing the manual work of building shift schedules around availability, skills, and overtime rules. But the complex human judgment in employee relations, grievance handling, and workforce planning decisions is not being automated — those are the parts of the job that define its value.

Manufacturing

Human Resources Manager Job Description

Human Resources Managers in manufacturing oversee the people practices that keep a production workforce operating effectively — recruiting production and skilled-trade workers, managing labor relations, administering benefits and compensation programs, handling employee relations issues, and ensuring compliance with employment law in an environment where shift schedules, union contracts, and safety regulations add complexity not found in office environments.

Last updated May 12, 2026

At a glance

Salary (USD)$92K

$75K low$118K high

Read time: 8 min
Last updated: May 12, 2026

Salary methodology

Our proprietary model combines official data from sources such as the U.S. Bureau of Labor Statistics and industry compensation reports, along with publicly available job postings, posting details, and other market signals, to identify what we believe is a representative range for this role.

These figures are directional and provided for informational and educational purposes only. Actual compensation varies by employer, location, experience, certifications, and negotiation, and should not be relied upon for hiring, salary-negotiation, or financial- planning decisions.

Role-specific factorsUnionized plant HR managers earn more than non-union counterparts due to the complexity of contract administration and grievance management. Multi-shift facilities that require HR presence across shifts command higher pay. Manufacturing HR managers with SHRM-SCP, SPHR, or labor relations specialization earn at the upper end. Corporate HR roles tied to manufacturing operations earn more than plant-level roles at the same company.

Role at a glance

Typical education: Bachelor's in HR, Business, or Psychology; Master's preferred for senior roles
Typical experience: Not specified; requires manufacturing-specific experience
Key certifications: SHRM-CP, SHRM-SCP, PHR, SPHR, OSHA 30
Top employer types: Automotive, semiconductor, pharmaceutical, food processing, heavy manufacturing
Growth outlook: Stable, in-demand function driven by manufacturing investments in EV, semiconductor, and pharma
AI impact (through 2030): Augmentation — automation of administrative tasks via HRIS and ATS tools shifts focus toward strategic workforce planning and complex employee relations.

Duties and responsibilities

Manage full-cycle recruitment for production, maintenance, and skilled-trade positions — job posting, screening, interviewing, offer management, and new hire onboarding
Administer benefits programs: health insurance open enrollment, 401(k) plan management, FMLA and leave administration, and workers' compensation claims coordination
Handle employee relations: investigate complaints and policy violations, document findings, recommend and implement disciplinary actions consistently with policy and labor law
Manage union relationships where applicable: administer the collective bargaining agreement, respond to grievances, and participate in negotiations as a management representative
Maintain compliance with FLSA, Title VII, ADA, FMLA, OSHA, NLRA, and state-specific employment laws across all employment actions
Oversee hourly workforce planning: develop scheduling strategies for shift coverage, manage overtime authorization, and analyze turnover data to recommend retention improvements
Develop and implement supervisor training programs on employment law compliance, performance management, and documentation practices
Partner with plant management on workforce planning: new hire needs for new programs, organizational changes, and skilled-trade succession planning
Manage HR information systems: maintain employee records in HRIS (Workday, SAP SuccessFactors, UKG), run workforce analytics, and ensure data accuracy
Lead the annual performance management cycle: coordinate goal-setting, mid-year reviews, year-end evaluations, and merit increase administration

Overview

HR Managers in manufacturing are generalist people managers operating in an environment that's more complex than most HR textbooks describe. A plant with 300 hourly workers running three shifts, a union contract, a safety incident about once a month, and persistent overtime pressure is a different HR environment than a 100-person tech company.

Recruiting is typically a major ongoing activity. Production environments have turnover rates that can run 30–60% annually in some markets, which means the HR manager is constantly filling positions while also running the rest of the function. Developing relationships with local workforce development boards, community colleges, and staffing agencies — and building an employer brand in the local labor market — is often the most important long-term investment the HR manager can make.

Employee relations is where the job gets complicated. A workforce of hundreds means there are always performance issues, conflicts, accommodation requests, leave situations, and potential harassment complaints in progress simultaneously. The HR manager's job is to ensure that each of these is investigated properly, documented thoroughly, and resolved consistently — both to comply with the law and to maintain the trust of the workforce. Inconsistent treatment of similarly situated employees is one of the fastest ways to create a union organizing threat at a non-union facility.

Compliance is constant. Employment law changes regularly, and manufacturing adds OSHA to the mix. HR managers who stay current on regulatory requirements — and who proactively audit their practices rather than waiting for a complaint — keep their companies out of expensive litigation and regulatory trouble.

Qualifications

Education:

Bachelor's in human resources management, business, psychology, or industrial/organizational psychology (most common)
Master's in HR management, industrial relations, or MBA with HR concentration for senior plant or multi-site HR roles

Certifications:

SHRM-CP (Certified Professional) or SHRM-SCP (Senior Certified Professional) — SHRM credential; most widely recognized
PHR (Professional in Human Resources) or SPHR (Senior PHR) — HRCI credential; respected equivalent to SHRM
NLRA training (specific labor relations training for unionized environments) — not a formal credential but essential knowledge
OSHA 30 General Industry — expected at plant HR manager level for safety compliance awareness

Technical skills:

HRIS platforms: Workday, SAP SuccessFactors, UKG Pro, ADP Workforce Now — administration and reporting
Timekeeping systems: Kronos (UKG Dimensions), ADP Time and Attendance — especially for overtime calculation and shift schedule management
Workers' compensation: understanding of state-specific WC systems, claims administration, return-to-work programs
Benefits administration: experience managing annual enrollment, vendor relationships, and ACA reporting
Employment law: FLSA, Title VII, ADA, FMLA, NLRA, state equivalents — practical application, not just theoretical knowledge

Manufacturing-specific experience:

Managing high-volume hourly recruiting pipelines
Administering collective bargaining agreements and handling grievances
Working with OSHA: participating in inspections, managing recordkeeping (OSHA 300 log), and coordinating incident investigations
HR presence on second or third shift (many plants need HR coverage across shifts)

Career outlook

HR management in manufacturing is a stable, in-demand function. Every plant above a certain size needs dedicated HR support, and the combination of hourly workforce complexity, safety regulation, and labor relations creates specialized demand for HR professionals with manufacturing experience rather than general office HR backgrounds.

The near-term demand is elevated by manufacturing investment. New plants being built for EV, semiconductor, pharmaceutical, and food processing manufacturing need HR departments from day one — and standing up an HR function at a greenfield facility is a substantial undertaking that requires experienced HR leadership.

Labor relations expertise is in particular demand. Union organizing activity in manufacturing has been increasing — influenced by highly publicized organizing drives at Amazon, Starbucks, and automakers — and non-union manufacturers are paying more attention to employee relations as a preventive measure. HR managers with labor relations experience and NLRA knowledge are rare and valuable in this environment.

The technology side of HR is changing the time allocation but not the core value of the role. ATS (applicant tracking systems), scheduling platforms, and HRIS tools automate administrative tasks but don't replace the judgment required in employee relations, performance management, and labor negotiations. HR managers who use these tools to free up time for strategic workforce planning and business partnering are more effective and more promotable.

Career advancement from HR manager leads to HR director, VP of HR, or CHRO at manufacturers of increasing size. The path to CHRO typically involves experience at both plant and corporate levels, and ideally exposure to labor relations, compensation design, and M&A integration. Total compensation for manufacturing CHROs at $200M+ revenue companies is commonly $200–350K including bonus.

Sample cover letter

Dear Hiring Manager,

I'm applying for the HR Manager position at [Company]. I've been the HR Generalist at [Employer], a unionized food processing plant with 280 hourly employees across two shifts, for three years. I've been the only HR professional on site for the last year since my manager moved to a corporate role, which has given me broad exposure across every area of plant HR.

My work covers the full scope: hourly recruiting (I've filled over 60 production positions in the last year — we have above-average turnover due to the labor market), benefits administration, FMLA and leave management, workers' compensation coordination, and employee relations investigations. On the union side, I handle first-step grievances, work with the union steward on day-to-day CBA interpretation questions, and support our labor counsel in the two arbitrations currently in progress.

The work I'm proudest of is the onboarding program I redesigned last year. Our 90-day turnover was running at 38%. I built a structured 30/60/90-day check-in cadence with supervisors and added a peer mentor program where we paired new hires with experienced employees. After eight months, 90-day turnover dropped to 19%. It wasn't one thing — it was giving new hires more touchpoints and making supervisors accountable for the early experience.

I hold SHRM-CP and I'm familiar with the NLRA and our CBA administration demands. I'm looking for a role with more labor relations scope and a larger HR team to develop within. I'd appreciate the chance to discuss how my plant HR background fits what you're building.

[Your Name]

Frequently asked questions

What does a Human Resources Manager do?: Human Resources Managers in manufacturing oversee the people practices that keep a production workforce operating effectively — recruiting production and skilled-trade workers, managing labor relations, administering benefits and compensation programs, handling employee relations issues, and ensuring compliance with employment law in an environment where shift schedules, union contracts, and safety regulations add complexity not found in office environments.
What are the main duties of a Human Resources Manager?: Core duties include: manage full-cycle recruitment for production, maintenance, and skilled-trade positions — job posting, screening, interviewing, offer management, and new hire onboarding; administer benefits programs: health insurance open enrollment, 401(k) plan management, FMLA and leave administration, and workers' compensation claims coordination; and handle employee relations: investigate complaints and policy violations, document findings, recommend and implement disciplinary actions consistently with policy and labor law.
What HR certifications are most valuable in manufacturing?: SHRM-CP and SHRM-SCP (Society for Human Resource Management) and HRCI's PHR and SPHR are the two main credential bodies, and either path is respected. In manufacturing, labor relations experience and NLRA knowledge add specific value beyond the general HR credentials. For HR managers at unionized plants, credibility often comes from demonstrated experience administering CBAs and handling grievances more than from certification.
How is manufacturing HR different from office HR?: Manufacturing HR deals with a larger hourly workforce, more complex scheduling (shifts, overtime, rotating schedules), higher turnover rates in some roles, stronger union presence than most office environments, workers' compensation complexity from physical hazards, and a workforce where English may be a second language for a significant portion. The disciplinary volume is typically higher, the pace of the function is faster, and the proximity to operations is closer than in a typical corporate HR role.
What is a grievance procedure and how does an HR manager handle it?: A grievance procedure is the contractual process in a unionized workplace for an employee (or the union on their behalf) to formally dispute a management action they believe violates the collective bargaining agreement. HR managers receive and respond to grievances at each contractual step — typically starting at the supervisor level and escalating to plant manager and then arbitration if unresolved. Handling grievances well requires knowing the contract language, maintaining documentation, and resolving legitimate complaints quickly while defending management's position on legitimate exercises of discretion.
What is the FLSA and why does it matter more in manufacturing than in office settings?: The Fair Labor Standards Act governs minimum wage, overtime, and exempt/non-exempt classification. In manufacturing, most hourly production workers are non-exempt and entitled to overtime pay for hours over 40/week. FLSA compliance matters here because the workforce is large, hours are variable, shift work creates schedule complexity, and off-the-clock violations (requiring pre-shift work before clocking in, for example) are common violation patterns in production environments. A wage and hour class action in manufacturing can be extremely expensive.
How is AI changing HR in manufacturing?: AI tools are improving resume screening, candidate matching, and initial applicant communication in manufacturing recruiting — helping HR teams manage high-volume hourly hiring more efficiently. Employee scheduling platforms with AI optimization are reducing the manual work of building shift schedules around availability, skills, and overtime rules. But the complex human judgment in employee relations, grievance handling, and workforce planning decisions is not being automated — those are the parts of the job that define its value.

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