Personal Training • Functional Strength Training

Strength, built around your life

Tailored for every fitness level, beginners, older adults, and athletes. Train in person across San Diego, including Ocean Beach, Bay Park, and La Mesa, or go remote/hybrid from anywhere. Partner, small group, and in-home sessions also available.

Personal trainer coaching a woman the deadlift during a personal training session in Ocean Beach, San Diego.
Get in Touch
Book free Session

Remote, hybrid, or in person — your call.

  • Remote

    Custom programming built for your equipment, delivered to your phone. Constant line of communication for review and accountability.

  • In-Person (3 Locations in San Diego)

    Bay Park: 1205 W Morena Blvd, San Diego, CA 92110 (Werk Fitness)
    La Mesa: 8380 Center Dr C, La Mesa, CA 91942 (Werk Fitness)
    Ocean Beach: 1811 Sunset Cliffs Blvd, San Diego, CA 92107 (BUILD Private Access Gym)

  • Best of both

    Meet in person when it counts, train on your own with a plan the rest of the week. Nutrition tips included.

  • Working professionals
  • Beginners to lifting weights
  • Older adults with preexisting conditions
  • Athletes staying healthy & improving

Who it’s for

  • Strength & resistance training
  • Conditioning & core work
  • Mobility, balance & power
  • Plyometrics & nutrition tips

What you’ll learn

  • A healthier, more resilient body
  • Confidence with any equipment
  • Feeling good, mentally & physically
  • Performance for the life you love

The outcome

ABOUT YOUR COACH

Certified personal trainer Jeff Jun doing dumbbell exercises at a gym near Bay Park and La Mesa
Certified personal trainer Jeff Jun doing dumbbell exercises at a gym near Bay Park and La Mesa

Eight years of coaching, rooted in real experience.

My name is Jeff and I am a certified personal trainer and strength & conditioning coach, I've worked with high-school athletes, working professionals new to the weight room, and older adults through injury recovery.

Having navigated my own challenges with weight and mental health, I found a passion for functional fitness, weightlifting, martial arts, and hiking — and a calling to share what I've learned to help you build a routine that lasts.

Our Locations

  • Fully equipped gym floor in Bay Park, San Diego for strength and conditioning, showing exercise mats, weight machines, and a punching bag.

    Bay Park - Werk Fitness

  • Motivating personal training space in La Mesa featuring 'ROW' and 'STRONG' wall graphics alongside extensive gym equipment.

    La Mesa - Werk Fitness

  • Functional fitness and conditioning area in Ocean Beach equipped with hanging rings and versatile strength equipment."

    Ocean Beach - BUILD Private Access Gym

Contact us.

Call/Text: (619) 800-8389

Email: trainwithjun@gmail.com

Training Out Of:

  • Werk Fitness Personal Training - San Diego, 1205 W Morena Blvd, San Diego, CA 92110

  • Werk Fitness Personal Training - La Mesa, 8380 Center Dr C, La Mesa, CA 91942

  • Build Private Access Gym, 1811 Sunset Cliffs Blvd, San Diego, CA 92107

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