Social Media & Content Intern (Unpaid) – Fitness & Wellness

Muscle Seltzer is an early-stage functional beverage startup focused on fitness, recovery, and wellness. We’re building a refreshing, protein-based drink designed to help people get more out of their workouts, with both THC and non-THC versions depending on market legality.

We’re looking for Social Media & Content Interns to help grow our presence across Instagram, TikTok, Twitter/X, and other platforms. This is a hands-on opportunity to apply what you’ve learned in class to a real startup and help shape how a new brand shows up online.

This role is ideal for students interested in content creation, social media, marketing, or brand building—especially those who are into fitness, wellness, or gym culture.

This is a part-time, unpaid internship. College credit may be available if required by your program (subject to school approval). Hours are flexible and self-directed, based on meeting agreed-upon deadlines rather than set schedules.

What You’ll Work On:

• Creating and assisting with content for Instagram, TikTok, Twitter/X, and other platforms
• Helping grow followers and engagement in fitness-focused markets
• Brainstorming and testing content ideas, trends, and formats
• Supporting basic social media strategy (posting schedules, hashtags, captions, SEO basics)
• Collaborating with a small team and receiving direct feedback from the founder

You don’t need to be an expert in everything—if you’re strong in content creation, editing, strategy, or analytics, we’ll lean into your strengths.

The internship is expected to last approximately 3 months and may be extended if it continues to be mutually beneficial, with potential to transition into a paid role following funding and strong performance.

Commission opportunities may be available for interns who independently generate sales or partnerships, but sales activity is not required.

What We’re Looking For:

• Interest in social media, marketing, or content creation
• Comfort using Instagram and/or TikTok
• Interest in fitness, wellness, or consumer brands
• Self-motivated and willing to experiment and learn
• Students in marketing, communications, business, media, or related fields encouraged to apply