
Fitness Trainer (Level 3 Qualified PT)
Flexible employed contracts, typically 6, 12 or 18 hours a week | Plus your own Personal Training business
Being a Fitness Trainer at The Gym Group has two parts.
You'll work for us as an employed Fitness Trainer, typically on a 6, 12 or 18-hour contract, giving you guaranteed employed hours and pay each month.
You'll also run your own self-employed Personal Training business from the same gym, building a client base and creating an income that's yours.
During your contracted hours, you'll be part of the team that makes the gym a great place to train.
You'll run inductions, deliver classes and spend time out on the gym floor helping members - getting to know the people who use your gym and helping them get more from their membership.
You'll be paid £12.75 per hour, equivalent to a full-time annual salary of £26,509.50. Your actual annual salary will depend on your contracted hours.
You'll get:
✔ Guaranteed employed hours and pay
✔ Flexible contracts, typically 6, 12 or 18 hours a week
✔ Holiday pay and sick pay
✔ Free gym membership for you plus a friend or family member
✔ Pension scheme and share options
✔ Employee Assistance Programme
✔ 24/7 GP access and dental support through Tooth Fairy
✔ Funded First Aid qualification
✔ Retail discounts
✔ An induction and ongoing development as part of your employed role
The other part of the opportunity is building and running your own Personal Training business from the gym under a Personal Trainer Rental Agreement (PTRA).
Your clients. Your sessions. Your prices. Your business.
You decide who you train, when you train them, how long your sessions run and what you charge.
And you keep 100% of your PT earnings We don't take commission or a cut from your sessions.
You pay a monthly rent for access to the gym, equipment and our member base - and your first month is free
We'll give you access to resources, online learning, advice and guidance to support you as you build your business, as well as opportunities to promote your PT services to members through in-gym advertising.
We'll be straight with you about what that means.
We provide the gym, access to members, resources and support. Building your client base and growing your PT business is down to you.
That's an important part of this role - and for the right person, one of the most exciting parts of it.
✔ You hold a Level 3 Personal Training qualification, or you're Level 2 Gym Instructor qualified with your Level 3 nearly complete
✔ You enjoy being out on the gym floor, talking to people and building relationships
✔ You're passionate about helping people feel comfortable, confident and motivated in the gym
✔ You can run a class and an induction, or you're ready to learn
✔ You're excited by the idea of building a client base and growing a PT business of your own
No Emergency First Aid at Work certificate? We'll pay for it.
Not qualified yet? Take a look at The Gym Group Academy, where you can train to become a PT with us and come back to this advert afterwards.
We're one of the UK's biggest gym businesses, with 260+ gyms across the country, open 24 hours a day.
We invest millions in our gyms every year and we're an official HYROX partner, with dedicated HYROX training in 120+ locations.
And being part of a nationwide business means there's room to move - whether you want to develop your skills, progress your career or move to another gym or city in the future.
There's a two-minute video below where some of our trainers explain how they combine their employed Fitness Trainer hours with building their own PT businesses.
Apply below. It only takes a few minutes.
If you have a disability or condition that makes it difficult for you to complete your application online, please email your CV to recruitment@thegymgroup.com or call the TGG Recruitment team on 0203 319 4838 and someone will be more than happy to support you.
We actively encourage applications from a diverse demographic and are passionate about culture and value alignment. We want this to be a match that works for you as much as for us.

The Gym Group was the pioneer of low cost, 24/7 gyms in the UK. Now with over 900,000 members and 240+ gyms nationwide, our mission to support healthier communities with accessible fitness facilities remains as true today as it did in our first site in Hounslow in 2008.
The gym market is growing, with low cost the fastest growing segment of the market. We continue to accelerate our growth, opening 14-16 new gyms in 2025 and c.50 sites over the next three years.
Memberships start from just £14.99 a month and we are proud to be the highest rated nationwide low cost gym, with 92% of members rating us 4/5 or higher.
We passionately believe in our goal to break down the barriers to fitness for all. Together we work hard to give our members a better experience and that’s why our teams are critical to our success. Our unique culture helps everyone to do their best work, fulfil their potential and achieve great things together. We were named Sunday Times Best Places to Work 2024, scoring highly on Diversity & Inclusion, Wellbeing, and Job Satisfaction.
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