Personal / Semi-Private trainer | ONE Human Performance Institute

Who We Are

ONE Human Performance Institute is not a gym. We are a health practice. A fixed place in

the week of people who are serious about progress, not as a short burst of motivation, but as

a structural part of how they live.

We started with one studio in Amsterdam. We now operate across multiple locations and we

are actively expanding. The people who join us now help shape what we become.

What makes us different is not one thing. It is the combination. We work with clients on

training, nutrition, lifestyle, behavior, and mindset as one integrated system. We keep our

studios deliberately small, max 150 members per location, so every coach knows every

client. We use The ONE Method: a structured, evidence-based approach that does not

depend on perfect weeks or peak motivation.

We offer private 1-on-1 training and semi-private small group sessions. Both formats. One

standard.

One place. One team. The whole picture.

What We Stand For

Our three core values are not aspirational. They describe how we actually work.

We Care: We invest personally in every client's progress. We give honest feedback, even when it is

uncomfortable. We say what people need to hear, not what sounds nice. We do not promise

results without real commitment.

Always Getting Better: We choose measurable progress over perfectionism. We track, adjust, and improve consistently. We expect growth from clients and coaches alike. We build habits that last

outside the studio.

Getting Things Done: We choose commitment over intention. Responsibilities between coach and client are explicit. We connect goals to required behavior and follow-through. We help people take

control, not become dependent.

The Role

We are growing and we are hiring across multiple studios and contract types. The right

person for this role is someone who genuinely wants to see the whole picture. Not just

deliver sessions, but understand the person in front of them. A typical week includes private and semi-private sessions, client check-ins, program design, and collaboration with the team. You will be developed, challenged, and held to a high

standard. That goes both ways.

What You Will Do

• Coach clients in private 1-on-1 and semi-private sessions across training, nutrition,

lifestyle, and mindset

• Design personalized programs that deliver real, measurable results for your clients

• Build strong, long-term relationships with clients and support them across their full

health journey

• Work closely with your fellow trainers and contribute to a high-standard team

environment

• Take part in ongoing professional development, internal training, and mentorship

How You Can Work With Us

We currently have two types of openings.

Opening 1: A full role at ONE

We are looking for a trainer to join the team in a substantive capacity, either full-time or part-

time. This is for someone who wants ONE to be their main professional home, with a

structured contract, a clear development path, and the full support of the team around them.

Opening 2: Semi-private and small group sessions on a flexible basis

We are also looking for certified trainers to deliver semi-private and small group sessions on

a zero-hours or freelance basis. This is a great fit if you are already working as a trainer and

want to add high-quality sessions to your week, on your own schedule. No minimum hours,

no pressure to commit to more than you want.

We are actively hiring for both. Apply and let us know which fits your situation, or if you are

open to either.

Compensation and Benefits

• Base salary of EUR 2,600 to EUR 3,000 per month (full-time equivalent)

• Performance bonuses of up to EUR 1,000 per month

• Ongoing professional development, mentorship, and internal training

• Access to advanced certifications and education

• A collaborative team environment where your growth is taken seriously

Your Growth Path

ONE is expanding and that creates opportunities for the people inside the company. We

invest in the people who grow with us. Our development path is clear and structured:

• Personal Trainer Level 1

• Personal Trainer Level 2

• Personal Trainer Level 3

• Studio Manager

• Partner (business ownership for exceptional performers)

As we open new studios, we need people who can step into bigger roles. For those who

show excellence, coachability, and ambition over time, the path toward co-ownership of the

business is a genuine possibility. We do not promise that to everyone, but the ceiling here is

high and it keeps moving up.

Who We Are Looking For

This role is not for everyone. It is for someone who:

• Wants to see the whole picture, not just run a session

• Gives honest feedback and can handle receiving it

• Holds themselves to a measurable standard and expects the same from clients

• Works well inside a team and makes the people around them better

• Wants to build something long-term, not just fill a schedule

• Gets motivated by being part of a growing company that is still shaping itself

Requirements

Required:

• A recognized personal training certification (AALO / Fitvak A/B or equivalent)

Helpful but not required:

• Advanced certifications such as Overload, Milo Education, or NASM

• Experience with nutrition, lifestyle coaching, or behavior change

• Experience delivering semi-private or small group training

Our Selection Process

• First interview: case study and online conversation

• Second interview: trial session at one of our Amsterdam studios

• Final interview: culture and long-term fit

Please apply through the official link. We review all applications that come in through the

right channel and will get back to you with next steps.