Coach Trainer

Coach/Trainer – TJ’s Gym

Location: Marin County, CA (Corte Madera)
Type: Part-Time / Full-Time Opportunity

About Us

TJ’s Gym is a boutique strength & conditioning studio serving Marin County for over 20 years. We specialize in building strong, confident, and resilient people of all ages—teens, adults, and seniors—through personal training, small-group training, and private programming. With a community-focused approach and a staff of experienced coaches, we’ve become a cornerstone of fitness and longevity in the Bay Area.

The Role

We are looking for a passionate, knowledgeable, and energetic Coach/Trainer to join our growing team. You will work directly with clients across a variety of settings, including personal training, small group sessions (2–6 people), and age-specific programs (teens and seniors).

This role is ideal for someone who loves teaching, has a growth mindset, and thrives in a community-driven environment. We provide mentorship, development opportunities, and a clear path to a long-term career in the fitness industry.

Responsibilities

Lead engaging and safe small-group and one-on-one training sessions focused on strength, conditioning, and functional movement.

Deliver individualized coaching while managing group dynamics.

Support specialty programs (teen strength & hypertrophy, senior fitness, etc.).

Provide ongoing encouragement, accountability, and education for clients.

Contribute to the community feel of TJ’s Gym by fostering positive member experiences.

Participate in staff development meetings and continuing education.

Qualifications

Degree in Exercise Science, Kinesiology, Athletic Training, or related field (preferred but not required).

Personal Training or Strength & Conditioning certification (NASM, NSCA, ACE, ACSM, CF-L1 or higher).

Experience coaching individuals or groups in a fitness setting.

Strong communication and interpersonal skills.

Ability to adapt programming for clients of different ages and ability levels.

Passion for lifelong learning in fitness, health, and human performance.

What We Offer

Competitive hourly compensation with opportunities for growth.

Access to mentorship from TJ Belger, a 35-year veteran coach and gym owner.

Continuing education and career development support.

A collaborative, team-oriented environment.

The chance to make a real impact in people’s lives while growing professionally.

How to Apply

Submit your application through Handshake with:

A current résumé.

A brief cover letter telling us why you’d be a great fit at TJ’s Gym.