Work Arrangement:
This role is categorized as onsite. This means the successful candidate is expected to report to Moraine, OH on a full-time basis.
The Role:
As a key member of GM’s Human Resources (HR) Group, you will lead the development and execution of high-impact HR and Labor Relations (LR) initiatives. You will serve as a strategic advisor to senior management and union leaders, leveraging deep business insight and external awareness to deliver tailored HR/LR solutions that support business objectives. Your work ensures operational excellence through the consistent application of standard methodologies and a focus on service delivery across the plant organization.
Site Overview:
DMAX LLC, a subsidiary of GM, was originally a 60‑40 joint venture with Isuzu until GM took full ownership in May 2022GM’s DMAX operations exemplifies advanced manufacturing—leveraging modern lean practices, modular growth, and strategic capacity to support high-demand Duramax diesel production. It demonstrates GM’s commitment to powertrain excellence, local economic development, and optimized operations in support of heavy-duty truck lines. Between 2023-2025, GM began expanding the site with a $920million, 1.1‑million ft² addition — quadrupling capacity and will fully launch its new product line up in 2026The organization is structured as a two-site operationCollectively, the site employs nearly 900+ employees and expected to grow to 1,200 by 2026.The Brookville plant, opened in 2021, primarily machines engine blocks and heads for Duramax 6.6L V‑8 turbo‑diesel engines used in Chevrolet Silverado HD and GMC Sierra HD trucks.The Moraine site, launched in 2000, is the core manufacturing hub for GM’s Duramax 6.6L V‑8 diesel engines.
Position Overview:
You will provide HR/LR leadership in all aspects of human capital strategy including organizational design, employee engagement, talent acquisition, performance management, employee relations, compliance, training, and labor contract administration. As the HR/LR business partner to the Plant Leadership Team, you are responsible for building and leading a capable HR team, driving a culture of accountability, continuous improvement, and inclusion.
This role has the unique challenge of managing a GM-owned subsidiary – with unique processes and policies – with a small number of GM secondees that fall under GM’s policies and procedures. The role requires flexibility in supporting the distinct needs of each business unit while seeking opportunities to be consistent where possible.
Your scope includes not only operational support for both salaried and hourly employees but also active engagement with external stakeholders, community partners, and regulatory bodies. This position reports directly to the Manufacturing Sector Human Resources Director – for Global Propulsion Systems.
Essential Responsibilities:
Dual employment support: GM and DMAX - including two distinct handbooks/policy manualsServe as a Safety Ambassador, promoting the safety vision and Workplace Safety System.Lead Labor Relations ensuring the organization complies with labor laws, collective bargaining agreements, and internal policies—while maintaining a productive, respectful working relationship between management and labor.Lead Talent Management, Progression, and Succession Planning processes.Execute compensation planning aligned to DMAX/GM’s pay-for-performance philosophy.Administer employee benefits programs locally, ensuring employees receive timely and accurate support for health and retirement benefitsSupport and enforce performance management policies and local HR procedures.Manage short- and long-term disability programs in coordination with medical, benefits, and legal to support employees and minimize operational disruptionChampion Diversity, Equity, and Inclusion (DEI) initiatives and plant-wide strategies.Conduct trainings in areas such as Ethics, Policy, Safety, Leadership, and GMS.Driving cultural engagement initiativesDevelop, coach, and evaluate HR team and plant personnel. Lead internal and external workforce development programs with community partners.Manage recruitment and onboarding processes – managing relationships with third-party recruitment firms and contract agenciesMaintain collaborative relationships with union leadership and internal business partners.Serve as advisor and administrator on all HR/LR-related matters.Ensure compliance with all employment legislation and internal policies.Support employee communications, engagement action plans, and plant branding efforts.Collaborate on health, wellness, and security services with corporate and functional partners.Represent Duramax, LLC and GM in community and professional matters as needed.

Additional Job DescriptionRequired Qualifications:
Bachelor’s degree in Business, Human Resources/Labor Relations or related field (or equivalent experience)Master’s degree (preferred) 10+ years of related experience5+ years of direct People Leader experienceProven experience applying corporate and site-specific HR policies and labor agreements.Demonstrated ability to build trust and credibility across all organizational levels.Skilled in conflict resolution, facilitation, and collective bargaining negotiations.Excellent written and verbal communication abilities.Ability to train and develop individuals and teams in key HR/LR areas.Willingness and ability to be geographically mobile.
Key Competencies:
Broad HR and LR expertise with business acumen in manufacturing environments/ experience on manufacturing plant floor (preferred)Experience working in JV environment (preferred)Strategic thinking and analytical skills, including data-driven decision-making.Proven contract negotiations experience (i.e. settling, ratifying union agreements)Strong influencing, leadership, and interpersonal effectiveness.Collaborative mindset with a proactive, self-directed work style.Effective problem-solving under complex and dynamic conditions.Compensation:
The compensation information is a good faith estimate only. It is based on what a successful applicant might be paid in accordance with applicable state laws.
The actual base salary a successful candidate will be offered within this range will vary based on factors relevant to the position, as well as geography of the selected candidate.
The salary range for this role is $110,000 - $172,100. The actual base salary a successful candidate will be offered within this range will vary based on factors relevant to the position.Bonus Potential: An incentive pay program offers payouts based on company performance, job level, and individual performance.Benefits: GM offers a variety of health and wellbeing benefit programs. Benefit options include medical, dental, vision, Health Savings Account, Flexible Spending Accounts, retirement savings plan, sickness and accident benefits, life insurance, paid vacation & holidays, tuition assistance programs, employee assistance program, GM vehicle discounts and more.Relocation:
This job may be eligible for relocation benefits.GM DOES NOT PROVIDE IMMIGRATION-RELATED SPONSORSHIP FOR THIS ROLE. DO NOT APPLY FOR THIS ROLE IF YOU WILL NEED GM IMMIGRATION SPONSORSHIP NOW OR IN THE FUTURE. THIS INCLUDES DIRECT COMPANY SPONSORSHIP, ENTRY OF GM AS THE IMMIGRATION EMPLOYER OF RECORD ON A GOVERNMENT FORM, AND ANY WORK AUTHORIZATION REQUIRING A WRITTEN SUBMISSION OR OTHER IMMIGRATION SUPPORT FROM THE COMPANY (e.g., H-1B, OPT, STEM OPT, CPT, TN, J-1, etc.)
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