Onsite HR Leader — Construction & Union Workforce

System One; Pittsburgh (Allegheny County); On-site; USD 70,000 - 90,000; Full time

Benefits offered by this job

Health benefits

401(k) plan

Job summary

System One in Pittsburgh, PA is seeking an experienced HR Manager for a Commercial & Industrial Mechanical Contractor with a mixed union/non-union workforce across multiple regional offices. You will direct HR operations, oversee recruiting, benefits, compliance, and policy development while partnering with operations leadership to align staffing with business goals.

This senior role requires 5–7 years in HR management within construction or trades, knowledge of wage rules, and field-office

Qualifications

• Bachelor's degree in HR, Business Administration, or related field preferred; PHR/SHRM-CP a plus
• 5-7 years in HR management, preferably within construction, mechanical contracting, or a comparable trade environment with a mixed union/non-union workforce
• Experience navigating HR practices across both union and non-union employee groups
• MS Office proficiency; familiarity with construction accounting/HR platforms such as Foundations preferred
• Working knowledge of employment law, wage/hour compliance, and benefits administration

Responsibilities

• Direct HR operations for administrative staff and unionized trade employees across multiple locations
• Manage day-to-day HR needs within a mixed union and non-union workforce; ensure policy consistency
• Run recruiting and onboarding for corporate and field-based roles
• Oversee benefits enrollment, leave tracking, and workers' compensation claims
• Maintain compliance with wage and hour law, prevailing wage rules, and certified payroll reporting
• Track HR data and reporting through construction-industry payroll/HR software and MS Office
• Coordinate with operations leadership on staffing levels and workforce planning
• Oversee disciplinary procedures, performance reviews, and policy enforcement
• Draft and revise HR policies and the employee handbook

Skills

HR leadership

Employee relations

Policy administration

Staffing & recruiting

Education

Bachelor's degree in HR/Business Administration

Tools

Foundations HR platform

MS Office

Job description

System One in Pittsburgh, PA is seeking an experienced HR Manager for a Commercial & Industrial Mechanical Contractor with a mixed union/non-union workforce across multiple regional offices. You will direct HR operations, oversee recruiting, benefits, compliance, and policy development while partnering with operations leadership to align staffing with business goals.

This senior role requires 5–7 years in HR management within construction or trades, knowledge of wage rules, and field-office