Office Administrative Assistant

Quantum Industrial; Gilbert (AZ); On-site; USD 42,000 - 54,000; Full time

Benefits offered by this job

Competitive salary and benefits

Career growth opportunities

Commitment to safety culture

Job summary

Quantum Industrial Services, part of Crawford Mechanical Services, is seeking an Office Administrative Assistant to support day-to-day operations for office, project teams, and leadership. You’ll help maintain records, coordinate schedules, and assist purchasing, onboarding, and reporting tasks across teams.

Ideal candidates have 1–3 years of office experience, a high school diploma, and strong organizational and communication skills.

Qualifications

• 1-3 years of office administration or administrative support experience.
• High school diploma or equivalent.
• Construction, mechanical, service, or industrial industry experience is a plus.
• Strong organizational and time-management skills.
• Proficiency with Microsoft Office, including Excel and Outlook.
• Experience with ERP or accounting systems preferred.
• Strong attention to detail and data accuracy.
• Professional written and verbal communication skills.
• Ability to manage multiple priorities in a fast-paced environment.
• Dependable, team-oriented, and solutions-focused approach.

Responsibilities

• Support daily office operations and administrative tasks.
• Answer calls, emails, and general inquiries professionally.
• Organize and maintain company, project, and compliance records.
• Enter and update data in ERP and other company systems.
• Assist with invoices, purchase orders, expense reports, and administrative tracking.
• Support scheduling, meetings, travel arrangements, and company events as needed.
• Assist with office supply purchasing, inventory, and vendor coordination.
• Support project teams with document preparation, reporting, and tracking.
• Assist with employee onboarding, timekeeping, and administrative HR tasks as needed.
• Prepare basic reports and spreadsheets for management.
• Communicate with employees, customers, vendors, and internal departments.
• Maintain confidentiality of company and employee information.

Skills

Organizational skills

Time-management

Communication skills

Attention to detail

Team player

Education

High school diploma or equivalent

Tools

Microsoft Office

ERP systems

Job description

About Quantum Industrial Services Crawford Mechanical Services, a Quantum Industrial company , is a leading mechanical and plumbing contractor, with operations across multiple states, specializing in large-scale commercial and industrial projects. Our team delivers innovative solutions for critical sectors, such as data centers, semiconductor manufacturing, biopharma, aviation, oil & gas, and more. We are known for our focus on cutting-edge fabrication technologies, our commitment to quality craftsmanship, our strong client relationships, and above all, our culture. "We build people" is not just a catchphrase. We are a group of innovators, creatives, and craftsmen, who push boundaries and challenge the status quo. Our culture is centered around empowering our employees to reach their full potential by providing them with opportunities for growth, development, and personal and professional advancement. "We build people" who build amazing things.

About The Role

The Office Administrative Assistant provides day-to-day administrative support to the office, project teams, and leadership. You'll help keep office operations organized, maintain accurate records, coordinate schedules and communications, and support purchasing, reporting, onboarding, and other administrative needs.

What You'll Do

• Support daily office operations and administrative tasks
• Answer calls, emails, and general inquiries professionally
• Organize and maintain company, project, and compliance records
• Enter and update data in ERP and other company systems
• Assist with invoices, purchase orders, expense reports, and administrative tracking
• Support scheduling, meetings, travel arrangements, and company events as needed
• Assist with office supply purchasing, inventory, and vendor coordination
• Support project teams with document preparation, reporting, and tracking
• Assist with employee onboarding, timekeeping, and administrative HR tasks as needed
• Prepare basic reports and spreadsheets for management
• Communicate with employees, customers, vendors, and internal departments
• Maintain confidentiality of company and employee information

What You'll Bring

• 1-3 years of office administration or administrative support experience preferred
• High school diploma or equivalent required
• Construction, mechanical, service, or industrial industry experience is a plus
• Strong organizational and time-management skills
• Proficiency with Microsoft Office, including Excel and Outlook
• Experience with ERP or accounting systems preferred
• Strong attention to detail and data accuracy
• Professional written and verbal communication skills
• Ability to manage multiple priorities in a fast-paced environment
• Dependable, team-oriented, and solutions-focused approach

Why Join Us?

• Competitive salary and benefits package
• Career growth opportunities within a rapidly expanding company
• Commitment to a strong safety culture and quality-driven projects