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Join Our Epic Team
Epicosity, a full-service marketing agency located in Sioux Falls, SD, is looking to hire a Office Manager
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.
Primary Responsibilities
Client & Guest Experience
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Be the first face and voice of Epicosity — greeting guests and callers with warmth, professionalism, and energy
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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
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Plan and coordinate office culture events that bring the team together and reinforce Epicosity's intentionally positive workplace
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Champion the employee experience by organizing celebrations, team activities, and internal initiatives that make Epicosity a great place to work
Ideal Skills & Qualifications
- 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
Platform-Specific Tools
Media Platforms & Tools
- Google Ads
- Meta Ads Manager (Facebook/Instagram)
- LinkedIn Campaign Manager
- The Trade Desk (TTD) and other DSPs
Other Required Skills
- Website Tagging and Tracking: Google Tag Manager (GTM)
- Audience Segmentation and Data Analysis: Google Analytics, Customer Data Platforms (CDPs)
- Data Visualization Tools: Looker Data Studio, Power BI
- Microsoft Excel and Google Sheets
- Experience working from a media brief with a team
- Strong communication skills
Ideal Skills & Qualifications
Qualifications & Certifications
- Experience managing multi-channel campaigns (search, social, digital, radio, TV)
- Strong understanding of audience segmentation and targeting strategies
- Ability to analyze large data sets and translate findings into actionable recommendations
- Creative mindset for developing media strategies
- Exceptional negotiation skills
- DSP or Google Ads and Analytics certifications (a plus)
- Willingness to learn and grow in a fast-paced, evolving media landscape
Benefits
At Epicosity, our employees are our most valuable assets! Taking care of them is our top priority. Below are a list of the benefits we provide for our team.
- Paid Time Off
- Paid Holidays
- 401(k) Matching
- Health Insurance
- Dental Insurance
- Vision Insurance
- Aflac Coverage
- Employee Assistance Program (EAP)
- Professional Development Assistance
- One Annual Work from Anywhere Week
- One to Two Remote Days Per Week
- EpicosityXP — Focus on Company Culture & Experiences
- Craft Beer Fridays