Payroll and HR Coordinator

Katalyst Systems Impact; Tempe (AZ); On-site; USD 52,000 - 78,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

401(k) retirement plan

Paid vacation and holidays

Job summary

Katalyst Systems Impact is seeking a Payroll & HR Coordinator in Tempe, AZ. This hands-on role supports two affiliated businesses—handling payroll, benefits, onboarding/offboarding, and compliance reporting while collaborating with the CFO.

The position emphasizes accuracy, confidentiality, and growing into broader accounting and HR responsibilities within a fast-paced construction and steel fabrication environment. Office-based, located in Tempe.

Qualifications

• 3+ years of experience in payroll, HR, or accounting support.
• Experience in the construction industry preferred.
• Knowledge of multi-state payroll and benefits administration a plus.

Responsibilities

• Process weekly payrolls and benefits administration for two affiliated companies.
• Onboard and offboard employees; manage records and confidentiality.
• Administer 401(k) contributions and benefits enrollments; coordinate open enrollment.

Skills

Payroll & HR

Microsoft Office

Confidentiality

Organizational skills

Attention to detail

Communication

Tools

Excel

Word

Outlook

Job description

Payroll and HR Coordinator

Location: Tempe, AZ | In-Office

A well-established construction and steel fabrication company, is seeking a Payroll & HR Coordinator to support operations across their two affiliated businesses. This is a hands-on, detail-oriented role designed for someone who thrives in a fast-paced environment and is eager to grow their skills in payroll, compliance, and HR administration.

This position works closely with the CFO, providing support on payroll, benefits administration, employee onboarding / offboarding, and various compliance reporting functions. You’ll play a key part in ensuring smooth day-to-day operations across both companies.

Key Responsibilities

• Payroll & Benefits
  • Process weekly payrolls for both the General Contracting & Steel Fabrication company
  • Manage employee onboarding and terminations
  • Administer 401(k) contributions and ensure accurate recordkeeping
  • Oversee group insurance enrollments, changes, and terminations
  • Coordinate open enrollment and employee communications
  • Maintain accurate employee records and ensure confidentiality
• Compliance & Reporting
  • Assist with weekly, quarterly, and annual payroll reporting
  • Help prepare documentation for audits and insurance renewals
  • Maintain all corporate licensing for both companies, including:
    • State, County, and City-level business licenses
    • Contractor licenses and renewals
    • Annual reports and compliance filings
    • Withholding and unemployment account maintenance
• Administrative Support
  • Maintain organized and secure employee files for both companies
  • Support employee-related activities and communications
  • Provide assistance with various administrative and accounting tasks as needed

Preferred Qualifications

• 3+ years of experience in payroll, HR, or accounting support
• Experience in the construction industry preferred
• Knowledge of multi-state payroll and benefits administration a plus
• Strong organizational skills and attention to detail
• Proficiency with Microsoft Office (Excel, Word, Outlook)
• Ability to manage sensitive information with confidentiality
• Eagerness to learn and grow into broader accounting and HR responsibilities

What We Offer

• Competitive weekly pay (commensurate with experience)
• Training and mentorship from an experienced CFO
• Opportunities for professional growth across multiple business entities
• Health, dental, and vision insurance
• 401(k) retirement plan
• Paid vacation and holidays
• Supportive, team-oriented environment

Work Location

• Tempe, Arizona (100% in-office role)

Work Remotely

• No