Marketing Intern Sport Startup | Social Media & Community Building

Salary Unpaid

📍Location: Copenhagen

💼 Part-time or Full-time | Internship | Unpaid

🧪 Industry: Sports Tech | Biosensors | Health Tracking

📅 Start: As soon as possible (flexible)


NDURE is creating the world’s first continuous wearable lactate tracker, built to push endurance sports to new heights. But for us, it’s about more than technology. We’re the Future of Endurance, a brand that inspires athletes, coaches, and creators who live to push their limits.

We’ve recently raised our pre-seed round and are now going full speed ahead to make this vision a reality. Our team runs on the same mindset we design for: high performance, drive, and a love for sports. We want people who don’t just talk about endurance. They live it.


Role Description

We’re looking for two marketing interns to help us grow NDURE into a leading sports brand.

You’ll work closely with our CMO to build the NDURE identity, engage our community, and create energy around endurance sports. Whether it’s through storytelling, visuals, or real-world experiences, you’ll play a key role in shaping how people discover and connect with NDURE.


There are 2 main goals:

  • Built a sport community, for early adaptors and athletes/coaches...

  • Grow social media presence (mostly Instagram).


This internship is perfect for someone who’s passionate about sports, branding, and creativity, and wants to experience what it’s like to build a funded startup from the ground up.


What are we looking for:

  • People who take initiative in a fast-moving environment

  • Idea machines who love turning thoughts into action

  • Experience in content creation, community building, or marketing

  • A background or interest in the sports industry, especially endurance sports


Nice to have

  • Know the Danish market

  • Experience with Graphic Design or other creative tools

  • Be an Olympic medalist 🥇 (should be easy, right?)


We want people who are driven, who love what they do, and who strive to be the best at it.

If you want to work in a team that moves fast, expects a lot, and has fun doing it. This is for you.


Send us a short motivation letter telling us why you’re the person we need and which position you’re most excited about (Social Media or Events & Community).

Hope to hear from you.


We can’t wait to hear from you.

Let’s build the future of endurance, together. 🏁


If you have any questions, reach out to.



For more information or questions please contact us at arthur@ndure.dk

Perks and benefits

This job comes with several perks and benefits

Equity package
Equity package

Free coffee / tea
Free coffee / tea

Skill development
Skill development

Flexible working hours
Flexible working hours

Work life balance
Work life balance

Mental health support
Mental health support

See all 8 benefits

Working at
NDURE

From intermittent to continuous tracking lactate data Are you or someone you know doing everything in your power to reach the top of the podium someday? If so, NDURE wearable lactate sensor will help you those crucial steps closer to becoming the best. Inspired by the practices of some of sports biggest champions, we fundamentally believe that our continuous lactate tracker will revolutionize the sports industry and unlock human performance. Lactate tracking has recently become the most recognized metric for performance across different sports and athletes have started to integrate this into their training practices in order to gain those infamous "marginal gains". NDURE's continuous lactate biosensor enables sports athletes and their teams to gain continuous and real-time data of lactate levels in a convenient and efficient way. Our mission, thus, addresses all key areas in performance-improvement ranging from optimized recovery to enhanced stamina as we strive to help athletes and coaches optimize training planning.

Read more about NDURE

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