About 3rd Millennium Classrooms

3rd Millennium Classrooms is on a mission to change behavior through education. Since 1999, we have partnered with higher education institutions, court systems, secondary school districts, and organizations nationwide to deliver engaging, evidence-based courses that make a realdifference. When you join our team, you’re not just selling a product — you’re helping people change their lives.

Our culture is:

Innovative — forward-thinking, agile, and unafraid to take smart risks that drive meaningful impact.
Team-oriented — drama-free, respectful, and accountable; we collaborate across teams to make things right and deliver results.
Tenacious — persistent and determined, we approach challenges with resilience and a growth mindset.
Ethical and emotionally intelligent — we act with honesty, empathy, and professionalism in every interaction.

About the role

We’re looking for a highly organized, proactive, and detail-oriented Office Administrator to support day-to-day operations and help keep our team running efficiently. This role is ideal for someone who enjoys administrative responsibilities with light accounting functions, thrives in a fast-paced environment, and takes pride in accuracy, organization, and follow-through.

As an Office Administrator at 3rd Mil, you’ll play a key role in office operations, customer support, and accounting billing/receiving processes. You’ll serve as a central point of coordination for Help Desk support and internal operations, working closely with teams across the company to support a well-organized, productive workplace.

What you’ll do

Answer incoming Help Desk support calls and ensure timely assistance
Expedite resolution of support requests through JIRA to maximize customer satisfaction
Identify patterns or recurring issues and proactively alert technical staff
Share insights from frontline support with internal teams to improve processes
Support Client Success with kit assembly and shipping as needed
Manage office inventory, including mailing, print, and conference supplies
Coordinate conference logistics and preparation
Handle shipping and deliveries (USPS, UPS, FedEx, etc.)
Run errands and provide general support to the physical office team
Process and deposit checks; assist with invoice payments
Investigate and resolve customer chargebacks
Maintain office cleanliness and coordinate cleaning/maintenance services
Plan and organize team events, outings, and celebrations
Manage digital systems including HubSpot basics and Vonage phone system
Maintain shared calendars and organize paper/digital files
Support cross-functional teams by taking on additional tasks as needed
Continuously improve through feedback and professional development

What you’ll bring

Understanding of A/R and A/P processes
Experience with Google Workspace and Microsoft Office tools
Excellent organizational, prioritization, and time management skills
Strong communication skills (verbal and written)
Attention to detail and strong proofreading ability
Ability to multitask and manage competing priorities effectively
Comfort working independently in a fast-paced environment
Proactive, problem-solving mindset
Ability to quickly learn new systems and technologies
Openness to feedback and a growth-oriented attitude

Performance Expectations

Answer Help Desk calls promptly and return voicemails within one hour
Respond to or reassign all JIRA tickets within one hour
Escalate critical issues to the appropriate team members quickly
Maintain adequate office and mailing supply levels at all times
Process mail, shipments, and deposits daily
Ensure office cleanliness and coordinate maintenance as needed
Successfully plan and execute team events and office activities
Contribute to process improvements through proactive communication
Dedicate at least 5 hours per month to professional development

Benefits

Health, dental, and vision insurance
Health savings account (HSA) with company match
401(k) with company match
Long-term Disability insurance
Paid time off and holidays
Opportunities for professional growth and advancement

Ready to make an impact?

Apply today and help us make an impact nationwide through meaningful, behavior-changing education.

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3rd Millennium Classrooms

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