Office Manager

We're Hiring: Office Manager | Epicosity | Sioux Falls, SD

At Epicosity, we're a full-service advertising agency that guides our clients and staff on a journey to awaken their inner champion. Our work spans branding, digital, web, video, and media — and it's earned recognition locally, regionally, and nationally. We've also been recognized as one of the Midwest's best places to work by Prairie Business Magazine. That culture doesn't happen by accident, and the right Office Manager plays a big part in keeping it thriving.

We're looking for an organized, detail-obsessed, people-first Office Manager who takes pride in keeping things running smoothly — and who genuinely loves being the person everyone can count on.

What You'll Do:

Client & Guest Experience

Be the first face and voice of Epicosity — greeting guests and callers with warmth, professionalism, and energy

Never miss an opportunity to excite and delight clients

Finance & Billing

Manage accounts payable end-to-end: reviewing invoices, maintaining documentation, reconciling vendor statements, and distributing checks

Process monthly client invoices and manage timely collection of outstanding receivables

Handle 1099/W-9 maintenance, vendor inquiries, and billing issue resolution

Support the CEO and VP of Finance with accurate, timely financial tasks

Office Operations

Oversee office supply inventory and manage relationships with environmentally responsible, cost-effective vendors

Keep the office organized, tidy, and running like clockwork

Coordinate with vendors for cleaning, technology, trash, and other facility needs

Sort and distribute mail; prepare US, UPS, and FedEx shipments as needed

Manage employee travel arrangements and coordinate tradeshow logistics

Maintain organized, clearly labeled filing systems in accordance with agency processes

Culture & Events

Plan and coordinate office culture events that bring the team together and reinforce Epicosity's intentionally positive workplace

Champion the employee experience by organizing celebrations, team activities, and internal initiatives that make Epicosity a great place to work

What We're Looking For:

Associate's degree or two-year equivalent in business administration, accounting, or a related field

Strong data entry and general math skills

Exceptional organizational skills and attention to detail