Human Resources Manager- Detroit Thermal Systems

Responsibilities

• Partner closely with the Plant Manager and site leadership team to align HR strategy with operational and business objectives
• Act as a trusted advisor to leaders on: Organizational effectiveness, Workforce planning, Leader capability and performance
• Support plant execution by ensuring the organization is staffed, structured, and operating effectively
• Ensure readiness across: Workforce planning and onboarding, Leadership capability and training, Culture and engagement
• Partner with leadership to drive accountability and ownership during high-pressure operational periods
• Lead all aspects of employee relations, including: Investigations, Corrective actions, Performance management, Termination
• Coach leaders through complex employee situations, ensuring consistency and fairness
• Lead and execute performance management processes, including: Coaching leaders on performance conversations, Developing performance improvement plans (PIPs), Supporting talent reviews
• Drive succession planning and leadership development across all levels
• Ensure the plant is building a sustainable talent pipeline
• Identify staffing needs and partner with Corporate Talent Acquisition for hiring execution
• Use data and workforce analytics to support planning and decision-making
• Ensure the plant is staffed appropriately to meet operational demand
• Oversee and manage all aspects of the employee lifecycle, including: Onboarding, Development, Retention, Offboarding
• Serve as subject matter expert for HR systems and processes
• Ensure accuracy and compliance in all HR administrative processes
• Drive a strong, engaged workforce aligned with One Piston culture and values
• Act as cultural ambassador, reinforcing: Accountability, Respect for people, Operational excellence
• Partner with leadership to maintain high levels of employee engagement and communication
• Coordinate and deliver management training on: Leadership development, Performance management, Employee relations, Compliance and workplace standards
• Enable leaders to effectively manage teams in a fast-paced, operational environment
• Partner with EHS leadership to support safe workplace practices
• Ensure compliance with: OSHA and regulatory requirements, Company policies
• Reinforce safety as a core component of plant culture
• Administer site-level compensation and benefits programs
• Partner with Finance and Corporate HR to resolve employee inquiries
• Support market competitiveness through: Wage analysis, Local market insight

Qualifications

• Bachelor’s degree in Human Resources, Business Administration, or related field
• Minimum 8+ years of progressive HR experience, preferably in manufacturing environments
• Strong experience in: Employee relations, Labor relations (union environment preferred), Performance management
• Demonstrated business and financial acumen, with the ability to connect HR decisions to operational outcomes
• Critical Experience Requirements: Proven experience supporting fast-paced, high-pressure manufacturing environments (including launch, ramp-up, or transformation settings)
• Demonstrated ability to influence leaders and drive accountability without direct authority
• Experience partnering with plant leadership to support organizational readiness, performance, and engagement
• Strong capability in managing complex employee and labor relations issues
• Ability to balance strategic HR partnership with hands-on execution