Fitness coach Jobs in Thornton, CO

About Rumble Boxing Rumble is more than just a workout—it's a high-energy fitness experience that blends boxing, strength training, and music-driven motivation.

We bring the fight, the energy, and the community to every class, helping our members build confidence, strength, and resilience.

Role Overview Rumble Trainers are the heartbeat of the experience, leading dynamic, music-driven group workouts that fuse boxing-inspired combinations with functional strength training.

We are looking for experienced group fitness instructors who bring passion, energy, and expert coaching to every class.

If you thrive in a high-energy environment, love motivating people, and can command a room, we want you on our team!

What You'll Do Lead high-energy group fitness classes , coaching members through boxing and strength-based workouts.

Deliver exceptional motivation and coaching , ensuring every participant feels challenged and empowered.

Create an inclusive and engaging atmosphere , making all fitness levels feel welcome.

Demonstrate proper form and technique for boxing, strength training, and cardio drills while providing modifications when needed.

Coach while wearing a microphone , syncing movement with music to drive the energy of the class.

Engage and build relationships with members , fostering a strong community and driving retention.

Maintain studio safety and cleanliness to ensure a best-in-class training environment.

What We’re Looking For Minimum of one year of group fitness coaching experience required (HIIT, strength, bootcamp, cycling, or similar formats).

Experience coaching while wearing a mic is a major plus —we need trainers who can command the room and energize a class.

Boxing, kickboxing, and HIIT training experience is a plus (but not required—we provide training).

Certified fitness professional (NASM, ACE, ISSA, AFAA, or equivalent preferred, but we can guide you if you're not yet certified).

Strong communication skills and the ability to connect with a diverse range of fitness levels.

Bilingual in English and Spanish is a major plus!

Team player mentality with a passion for health, fitness, and delivering an unforgettable workout experience.

Perks & Benefits Competitive pay per class ($30- $45) + attendance bonuses + admin rate ($20)   Complimentary membership at Rumble Boxing Discounts on Rumble gear and merchandise Ongoing training and development in boxing and group fitness coaching Opportunity to be part of a growing, high-energy fitness community 🔥 Ready to bring the energy and help people unleash their inner fighter?

Apply now and join the Rumble family!

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