Now hiring · One trainer · Back Bay, Boston
Most training jobs hand you
a floor and a quota.
This one hands you a method.
AER on Newbury is a one-on-one, PRI-trained studio in Back Bay. We're hiring one experienced trainer who's genuinely curious about that kind of work — and wants to be taught to do it well.
The room
Not a floor job.
AER on Newbury is a one-on-one studio in Back Bay built on an idea most gyms skip:change how someone breathes, and you change how they move, recover, and feel in their own body.We're PRI-trained (Postural Restoration). We don't run group classes — every session is one person, start to finish. We care more about doing the work deeply than about doing a lot of it.
We're hiring one experienced trainer who's genuinely curious about that kind of work and wants to be taught to do it well.
If you're happiest running a packed floor and counting reps, this isn't your room. If you've ever wondered why a client's shoulder won't settle until their ribcage does — read on.
You'll be taught the method.
Paid, and on the job.
You don't need to know PRI coming in. You'll learn to read a client's breathing, posture, and nervous-system patterns and build their program from what you actually see — mentored directly in the method by our founder, Peter Jang (MFA, CSCS, PRT).
No PRI experience required — we train it. Curiosity about it is the real requirement.
What you'll do
The work.
- Train clients one-on-one, start to finish.
- Learn to read a client's breathing, posture, and nervous-system patterns and build their program from what you actually see — we'll train you in PRI, paid and on the job.
- Grow and keep your own book of clients.
- Bring real attention to the person in front of you, every session.
Who you are
The person we're looking for.
- A certified trainer (CSCS, NASM, ACSM, NSCA-CPT, or equivalent) who can already run a safe, effective one-on-one session on your own.
- Genuinely curious about integrative movement work — you want the why, not just the rep count.
- Warm and present with people, and coachable enough to be trained in a new method.
- No PRI experience required — we train it. Curiosity about it is the real requirement.
A plus, not a must
Exposure to PRI, breathing mechanics, or corrective/rehab-adjacent work; a background in exercise science or kinesiology; the kind of person who reads the study.
Compensation & logistics
The terms, plainly.
- Classification
- W2 employee.
- Pay
- Commission-based, with pay that grows as your book and your skills do — we'll walk you through the specifics directly.
- Your floor
- A guaranteed minimum-wage floor while you build your book — so you're never earning nothing while your schedule fills.
- Benefits
- Health-care and retirement benefits offered.
- Schedule
- Part-time to start, with a clear path to full-time as your client base grows.
- Location
- In person, Back Bay, Boston.
How to apply
Send us a note.
The real kind.
Email info@aerboston.com with the subject“AER Trainer — [Your Name].” Include:
· We review on a rolling basis and reply to everyone who writes a real note.
Equal opportunity
AER on Newbury (PJTrains LLC) is an equal-opportunity employer. We consider all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, veteran status, or any other characteristic protected by law.