Administrative Assistant, Social Media & Website Specialist

Mary Jo Wegner Arboretum; Sioux Falls (SD); On-site; USD 21,000 - 30,000; Part time

Job summary

Mary Jo Wegner Arboretum is seeking an Administrative Assistant, Social Media & Website Specialist to support operations, donor management, and online presence. You will handle inquiries, publish content, and keep the site up-to-date with events and registrations.

The role combines office administration, social media execution, and website maintenance in a part-time capacity, ideal for candidates with 1–3 years of relevant experience and a passion for nonprofit mission.

Qualifications

• 1–3 years of experience in an administrative, clerical, or digital media role (non-profit experience is a major plus).
• Proficiency with Google Workspace (Docs, Sheets, Drive) and Microsoft Office.
• Hands-on experience with social media platforms and scheduling tools.
• Experience updating website content using a CMS.
• Exceptional written and verbal communication with strong proofreading skills.
• Experience with a non-profit donor CRM (Bloomerang).

Responsibilities

• Serve as the primary contact for inquiries via phone, email, and mail; manage office operations.
• Assist in updating the donor database, processing donations, and issuing receipts.
• Prepare for board and committee meetings.
• Assist with basic bookkeeping tasks for the accountant.
• Draft, design, and schedule weekly social media content for Facebook and Instagram.
• Monitor social channels daily and respond to comments to foster community.
• Support digital fundraising campaigns and promote events.
• Update website content, registrations for classes, and manage online forms.

Skills

Social media management

Content creation & copy

Written communication

Verbal communication

Adaptability

Discretion with donor data

Non-profit experience

Education

Experience in admin/digital media

Tools

Google Workspace

Microsoft Office

Social media platforms

Scheduling tools

Website CMS

Bloomerang CRM

Job description

Administrative Assistant, Social Media & Website Specialist

Core Responsibilities

1. Administrative Support

Office Operations: Serve as the primary point of contact for general inquiries via phone, email, and mail; manage office supplies and maintain a tidy physical/digital workspace.

Database & Donor Management: Assist in updating the donor database (CRM), processing donations, and issuing timely thank-you letters and tax receipts.

Meeting Coordination: Prepare for board meetings and committee meetings

Financial Admin: Assist with basic bookkeeping tasks, such as invoices, receipts, and expenses for the accountant.

2. Social Media Management

Content Creation: Draft, design, and schedule engaging weekly content (graphics, photos, short videos, and copy) for platforms including Facebook and Instagram.

Community Engagement: Monitor social channels daily, responding to comments and direct messages warmly to foster community.

Campaign Execution: Help execute digital fundraising campaigns (e.g., GivingTuesday, 605Day, and end-of-year appeals) and promote upcoming organizational events.

Tracking: Monitor basic monthly analytics to see what content resonates best with our audience.

3. Website Maintenance

Content Updates: Keep the website fresh by updating calendar events, adding registrations for classes and monitor event requests. Remove any outdated programming.

Form Management: Create and monitor online signup forms for classes, events, volunteers, and newsletter subscriptions.

Accessibility: Ensure website compliance with basic ADA accessibility according to the City of Sioux Falls standards.

Qualifications & Skills Required

Experience: 1–3 years of experience in an administrative, clerical, or digital media role (non-profit experience is a major plus).

Tech-Savviness: Proficiency with Google Workspace (Docs, Sheets, Drive) and Microsoft Office

Digital Tools: Hands-on experience with social media platforms and scheduling tools

CMS Familiarity: Experience updating website content

Communication: Exceptional written and verbal communication skills with a sharp eye for proofreading.

Experience with a non-profit donor CRM (Bloomerang)

Soft Skills

Mission-Driven: A genuine alignment with and passion for our organization’s values and goals.

Adaptability: Comfortable shifting gears between technical web tasks and routine administrative paperwork.

Discretion: High level of integrity when handling sensitive donor information and organizational data.

Benefits & Compensation

Part-Time position: 15-20 hours per week

Salary Range: Determined based on experience

The Wegner Arboretum Society is an equal opportunity employer.