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If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
Hey San Francisco Bay area, My name is jonathan Montenegro, but you can call me Coach Jay
I have been in the business of personal training for over two years now and I specialize in self-defense, boxing, strength & conditioning training, and stretching
I am very passionate about the profession that I am in and I literally love what I do. My goal in life is to help you reach and obtain all your fitness goals and through my different fitness programs I know for a fact that shall happen.
I am currently in training myself for I am a amateur boxer consistently competing an amateur bout every other month so I know what it takes mentally spiritually and physically to become the best version of yourself through fitness and through all the programs that I have to offer
I’ve helped and continue to help very busy professional individuals lose 5 to 10 pounds monthly while gaining muscle and getting toned and helping them become mentally and physically sharp
I teach one on one boxing lessons from beginning, intermediate and advance 7 days week
I teach one on one strength and conditioning lessons 7 days a week
I also run a prison yard strength training, Boot Camp, Saturdays, and Sundays at $20 per person group classes
*Boxing Coach
*Strength & Conditioning Coach
* amateur boxer
*Prison yard strength training
*I have been boxing for over 10 years now and currently training and competing in boxing bouts
“ I know you got what it takes to get it done”
Overview
Current Top Pro
Hired 8 times
Serves San Francisco, CA
Background checked
1 employee
4 years in business
Business hours
This pro hasn't listed their business hours.
Payment methods
This pro accepts payments via Cash, Credit card, Venmo, and Zelle.
Top Pros are among the highest-rated, most popular professionals on Thumbtack.
2025
2024
Services offered
Event to prep for
Fitness goals
Lose weight
Get toned
Build muscle
Gain flexibility
Client age
Younger than 18
18 - 22 years old
23 - 30 years old
31 - 40 years old
Projects and media
Projects and media
Reviews
Customers rated this pro highly for professionalism, work quality, and responsiveness.
Exceptional 5.0
21 reviews
5
100%
4
0%
3
0%
2
0%
1
0%
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Read reviews that mention:
Darsh P.
Jul 8, 2026
•
Hired on Thumbtack
Great at what he does. Athletic training like no other. In just a few sessions, I started to see a lot of progress through body weight and weighted exercises. Good at cardio, strength training, and boxing. Would highly recommend to anyone and everyone else.
Personal Training
Daniel H.
Nov 24, 2025
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Hired on Thumbtack
Coach J is an outstanding trainer who played a huge role in getting me fully prepared for my fight. His attention to detail and deep experience show in every session—nothing is overlooked. The workouts are challenging, well-structured, and tailored to exactly what I needed to level up.
I always felt pushed, supported, and confident in the training process. If you’re looking for a coach who truly knows what he’s doing and is dedicated to your success, Coach J is the one. Highly recommended.
Private Self Defense Lessons
Jacob M.
Oct 22, 2025
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Hired on Thumbtack
Starting as a total beginner at 31, I’ve been boxing with Coach Jay now for a little over three weeks and am already seeing improvement in my conditioning, weight and skills! Coach brings the energy, encouragement and experience to every training session. 10/10
Private Self Defense Lessons
Brandon B.
Jul 10, 2026
I have been training since I was 24 years old. I am now, well, much older. Over that time, I have participated in: weightlifting, running, swimming, yoga, and boxing. Each time I’ve started a new discipline, I’ve always hired a trainer. Usually, I stopped seeing the trainer within 1-2 months and then continued on my own.
Not this time and not with Coach Jay. His knowledge of boxing and enthusiasm, not only for the sport, but also teaching it is off the charts. I have been working with him for months and will continue to do so.
Coach Jay is for everyone: first timers, amateurs and even pros. He is definitely for you, too. I can’t recommend him enough.
Ishwarya S.
3 weeks ago
Such a great personaltrainer! Always on time and comes prepared with personalized sets for what you want to accomplish. Couldn’t think of a better person to hire!
Credentials
Background Check
Jonathan Montenegro
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
My pricing is fair and you will definitely get your moneys worth, and in the end it will all be worth it. Health is wealth.
What is your typical process for working with a new customer?
Understanding what exactly they are looking for in their fitness goals and how they want to achieve it, and how they will achieve it
What education and/or training do you have that relates to your work?
I have plenty experience for my own background in boxing as an amateur, as well as strength and conditioning for my younger years of playing basketball and baseball