About Cornerstone Building Brands
Cornerstone Building Brands is a leading manufacturer of exterior building products for residential and low-rise non-residential buildings in North America. Headquartered in Cary, N.C., we serve residential and commercial customers across the new construction and Repair & Remodel (R&R) markets. Our market-leading portfolio of products spans vinyl windows, vinyl siding, stone veneer, metal roofing, metal wall systems and metal accessories. Cornerstone Building Brands’ broad, multi-channel distribution platform and expansive national footprint includes more than 18,800 team members at manufacturing, distribution and office locations throughout North America. Corporate stewardship and Environmental, Social and Governance (ESG) responsibility are embedded in our culture. We are committed to contributing positively to the communities where we live, work and play. For more information, visit us at http://cornerstonebuildingbrands.com.
Position Summary
The Human Resources Business Partner (HRBP) –is a strategic and hands-on HR leader responsible for supporting a designated client group within a unionized, safety-sensitive manufacturing environment. This role partners closely with plant leadership and supervisors to drive operational performance through disciplined people management, effective labour relations, and proactive workforce risk management.
The HRBP holds direct accountability for WCB claims management, disability and accommodation processes, attendance and sick leave management, labour relations, and leader capability development. The role requires strong shop-floor knowledge and experience and the ability to balance empathy with consistency, compliance, and business needs.
KEY OBJECTIVES AND RESPONSIBILITIES
Business Partnering
- Act as the primary HR advisor to plant, production, and maintenance leadership teams.
- Align people strategies with operational goals including safety, productivity, quality, uptime, and cost control.
- Provide real-time coaching to supervisors and managers on effective people management in a fast-paced manufacturing environment.
- Use operational and workforce data (WCB costs, attendance, overtime, grievances, turnover, training compliance) to identify trends, risks, and improvement opportunities.
- Align people strategies with operational goals including safety, productivity, quality, uptime, and cost control.
- Provide real-time coaching to supervisors and managers on effective people management in a fast-paced manufacturing environment.
- Use operational and workforce data (WCB costs, attendance, overtime, grievances, turnover, training compliance) to identify trends, risks, and improvement opportunities.
Labour Relations – Manufacturing & Maintenance (Unionized)
- Lead and support all labour relations activities within the manufacturing and maintenance workforce.
- Interpret and apply collective agreement provisions related to:
- Scheduling, overtime, shift premiums, and call-outs
- Job postings, job classifications, and seniority
- Discipline, investigations, and terminations
- Attendance management and sick leave
- Manage grievances from initial response through resolution, including preparation for arbitration where required.
- Support constructive day-to-day relationships with union representatives while protecting operational and business interests.
- Train supervisors and maintenance leads on contract administration and effective unionized people management.
WCB Claims Management & Return to Work
- Own end-to-end WCB claims management for manufacturing and maintenance employees, including:
- Incident reporting and claim submission
- Claim adjudication support and appeals
- Coordination with WCB case managers, healthcare providers, and safety teams
- Lead early and safe return-to-work (RTW) planning aligned with operational capabilities and maintenance tasks.
- Develop and maintain a maintenance- and production-specific modified duties bank.
- Analyze WCB trends (injury type, department, trade, shift) and partner with Safety and Operations to reduce injuries and claim duration.
Disability Management, Sick Leave & Accommodation
- Lead attendance and sick leave management programs within the plant, ensuring fair, consistent, and defensible application.
- Manage short-term and long-term disability cases, including non-occupational and occupational injuries.
- Coordinate and implement workplace accommodations in compliance with human rights legislation, including:
- Functional abilities review
- Identification of productive modified work within production or maintenance
- Monitoring and adjustment of accommodation plans
- Coach supervisors on managing attendance and disability cases with both operational discipline and empathy.
Training & Supervisor Capability Development
- Identify skill gaps and training needs specific to manufacturing and maintenance leadership.
- Design and deliver practical, operations-focused training on:
- Labour relations and collective agreement application
- Conducting investigations and issuing discipline
- Attendance and disability management
- WCB responsibilities and RTW processes
- Respectful workplace and performance management
- Ensure training is practical, legally sound, and directly applicable to shop-floor realities.
- Reinforce training through ongoing coaching and case-based learning.
Compliance, Safety & Risk Management
- Ensure compliance with employment legislation, labour law, WCB requirements, and occupational health and safety obligations.
- Partner closely with EHS to support injury prevention, incident investigations, and corrective actions.
- Support audits, inspections, and regulatory inquiries related to people management and labour relations.
- Proactively identify people-related risks that could impact safety, uptime, or labour stability.
This is a fully on-site position; hybrid or remote work arrangements are not available.
EDUCATION AND WORK EXPERIENCE REQUIREMENTS
- Bachelor’s degree in HR, business or a related discipline required.
- 5+ years’ experience in Human Resources with exposure to a cross-section of HR activity required.
- Experience and proficiency with HRIS or HCM related systems.
- Comprehensive knowledge of various Provincial Legislation (Employment Standards, Human Rights, Occupational Health & Safety, WCB, etc.)
- Experience and proficiency in Microsoft suite (Excel, PowerPoint, Teams)
- Manufacturing or related industry experience preferred.
- Prior experience in a unionized environment, with ability to interpret a CBA is a definite asset.
LEADERSHIP COMPETENCIES:
- Cornerstone Building Brands (CBB) Values and Behaviors & Mindsets – Act consistently with CBB’s Values (Safety, Integrity, & Inclusion) and Behaviors & Mindsets (Customer-Centricity, Interconnectedness, Continuous Improvement).
- Accountable – Accepts personal responsibility for actions and performance. Demonstrates sound judgment and owns problems and solutions. Holds others accountable to expectations.
- Collaborative – Emotionally intelligent, listens, builds trust, and maintains strong relationships with others.
- Communication – Communicates effectively in both oral and written format and understands varying viewpoints.
- Critical Thinking/ Critical Thinking – Leverages facts and data to draw conclusions. Ability to analyze complex situations and identify solutions to achieve intended objectives.
- Time Management & Organizational Skills – Effectively structures and organizes work and efficiently manages time.
- Results Driven – Makes a positive business impact; Demonstrates self-motivation and executes intended outcomes.
Ply Gem Canada is committed to an inclusive, equitable and accessible workplace. We encourage applications from all qualified candidates, including those with disabilities. We will accommodate applicants’ needs, upon request, throughout all stages of the recruitment process. Please inform us of the accommodation(s) that you may require. Information received relating to accommodation will be addressed confidentially