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Business AdministratorADC Water · Mesa, AZ
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ADC Water

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Business Administrator

🗓️ Posted 2026-09-29 Mesa, AZ Fulltime Hybrid Administration Office Support
💰 Salary Not shared 📊 Market US$3,000–US$5,000/mo

About the Company

For over 30 years, ADC Water has provided solutions to help our clients win. From onsite wastewater treatment to reclamation and reuse, from residential to recreational: We get it right - on time, the first time. Environmental Services Specialties: Wastewater System Design and Engineering, Water Reclamation and Reuse Solutions, Onsite Wastewater Treatment and Dispersal, Project Management and Owner's Representative, Feasibility Studies and Soil and Site Evaluations

About the Role

The Business Administrator is the person who keeps ADC's internal operations running. The role owns HR, payroll, technology systems, insurance, licensing, contracts, bookkeeping, and the administrative coordination that keeps leadership focused on clients and projects. AR and AP are included here as transitionary responsibilities, shifting to a dedicated Project Coordinator once that position is filled. This person reports directly to the Principal and runs a wide range of business functions with significant day-to-day independence.

Responsibilities

  • ● HR & PEOPLE OPERATIONS
  • ● Own the full employee lifecycle: onboarding new hires from offer acceptance through Day 1 readiness, and offboarding departing employees cleanly
  • ● Manage all personnel records, employment documentation, and compliance filings
  • ● Serve as ADC's primary point of contact with Insperity. Own the PEO platform for payroll processing, HR administration, benefits enrollment, and 401k coordination
  • ● Create, configure, and deactivate user accounts across all business systems when employees join or leave: no account left open, no new hire left waiting
  • ● TECHNOLOGY & SYSTEMS
  • ● Own the IT relationship with Olympia, ADC's managed service provider. Coordinate support tickets, renewals, and service-level issues
  • ● Manage all software subscriptions and seat counts across the firm's tech stack: renewals, user access, license audits, and new tool onboarding
  • ● Coordinate phone setup, hardware procurement, and equipment tracking for new hires and replacements
  • ● Maintain current documentation of all active platforms, vendor contacts, and access credentials
  • ● INSURANCE & RISK MANAGEMENT
  • ● Own the firm's insurance program: general liability, professional liability (E&O), workers' comp, and any additional policies
  • ● Manage the annual renewal cycle. The September 1 deadline is a hard date; preparation starts well in advance
  • ● Issue and track Certificates of Insurance (COIs) for clients and project-specific requirements
  • ● Maintain the relationship with ADC's insurance broker and carriers
  • ● BUSINESS LICENSING & REGULATORY COMPLIANCE
  • ● Maintain ADC's business licenses, registrations, and certificates of authority in Arizona, Washington, and any additional states as the firm grows
  • ● Own the compliance calendar: no renewal slips, no late filings
  • ● Track individual PE license renewals by engineer and by state; coordinate continuing education requirements and renewal submissions
  • ● Manage state filings, annual reports, and other regulatory submissions

Requirements

  • ● Familiarity with Insperity or a comparable PEO platform
  • ● Background coordinating with managed IT service providers
  • ● Exposure to construction or professional services contract structures (prime agreements, subcontracts, professional liability requirements)
  • ● A NOTE ON THIS ROLE
  • ● This is not a support role in the traditional sense. The Business Administrator holds the functions that most firms split across two or three people, and handles all of it well. The right person takes ownership without being asked twice, knows when to escalate and when to just handle it, and runs their work with the same precision and professionalism ADC brings to its engineering projects. The firm depends on this seat more than most people realize. The person who fills it will too.
  • ● EQUAL OPPORTUNITY
  • ● ADC evaluates candidates based on their ability to perform the work and contribute to the team. Qualified applicants will receive consideration without regard to legally protected characteristics.