Why One Arena?

Be part of Corks leading personal training and wellbeing team.

We work with hundreds of people across Cork each week. Our highly motivated and passionate team aim to provide an atmosphere full of energy, enthusiasm, and achievement. We focus on health and structural balance first. This is an integral part of our culture. People are our passion and our personal service is the backbone of what we do. Fitness to One Arena is being able to live a healthy well balanced life. It is more than just a physical capacity.

Fitness has intellectual, emotional and social concepts. As personal trainers, we aim to educate, inspire and empower through physical fitness.

One Arena Cork Gym Workout


You will have the amazing opportunity to work alongside industry professionals in creating and building health and wellbeing programs and strategies for some of the leading companies in Ireland.

You will be part of a team in creating and implementing training and nutrition programs for a diverse range of athletes and everyday fitness enthusiasts. As part of the One Arena team you will have weekly team training sessions along with monthly professional development courses. Our business rewards team members based on the value they provide. Therefore, we will discuss potential remuneration & bonus packages during our initial conversations.

This way we ensure a fair value exchange is achieved based on what you could bring and the outcomes & expectations of the role

We run monthly CPD sessions to upskill our staff in various areas. Our CPDs are in line with our values of having a consistent desire to grow our knowledge and expertise. Here we have Irish International Gymnast and European Champion Daniel Fox running a monthly CPD on calisthenics and body weight training.


We are looking for someone who wants to establish a career within the health and fitness industry.

Someone who’s passionate about teaching, coaching and helping to making a bigger impact in Cork.f you think you are the right person for the job and want to know more then please reach out to us today on with a resume and simply tell us what it is that you love about being a trainer!

One Arena Cork Gym Workout

One Arena Internship Programme:

Job Description


One Arena Fitness internship program is designed to allow recent graduates from college, university or personal training certification courses to observe the practical skills they will need to work successfully with clients in the future.
Interns will observe an experienced personal trainer conducting a variety of training sessions in exchange for assistance with cleaning, maintenance and other basic office and administrative tasks.



As a Fitness Intern, you will learn how to:

  • Perform fitness assessments and evaluations,
  • Develop training sessions and keep detailed progress reports on your clients,
  • Demonstrate proper training techniques, exercise coaching, motivation and instruction,
  • Coach and motivate clients to make appropriate changes to ensure consistent progress,
  • Track client progress, current successes and challenges, review client nutrition and
    exercise logs,
  • Provide ongoing health and fitness education that empowers clients to lead healthy lives forever,
  • Market and sell your fitness services,
  • Represent the vision, culture and values of One Arena.



  • Greet and check in clients in a friendly, positive, professional manner.
  • Assist with back office work, such as sending emails/cards, helping with testimonials, and
    running errands as needed.
  • Document your experience each week: interesting observations, lessons learned,
    questions for discussion, comments on workouts observed, useful client communication /
    training techniques, etc.
  • Assist with personal training sessions when appropriate.
  • Demonstrate behaviours consistent with One Arena vision, culture and values in all
    interactions with clients, co-workers and the general public.
  • Adhere to all company policies, procedures and safety standards.


  • Interns must spend 12 hours per week in the facility over the course of 8 consecutive weeks.
  • Must have a positive, enthusiastic, energetic personality.
  • Must enjoy working with people,
  • Must be comfortable conversing with clients in person and over the phone in a polite,
    professional, friendly manner.
  • Must have a working knowledge of health and fitness and the human body, and be able to
    quickly grasp and apply new concepts.
  • Must be punctual and reliable.


Additional Information

One Arena Internships are unpaid. However, interns who demonstrate excellent performance may be eligible for employment after the internship is complete.



“Edward and his team are absolutely fantastic. The first day I met the team I felt at ease straight away. They make you feel so welcome. It’s an absolutely fantastic place to work. I have really enjoyed my time here and have learned so much. Thanks so much to Edward and his team for letting me do my work experience here. I would really recommend One Arena. It is a fantastic place.”

Cliona Mc Mahon, Intern

Looking to be a part of the One Arena Team?

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Our Staff

OneArena Cork - Edward Finn

Edward Finn


OneArena Cork - Karen McCarthy

Karen McCarthy


OneArena Cork - Danielle Holmes

Danielle Holmes

Strength and Conditioning Coach

OneArena Cork - Dylan O Leary

Dylan O Leary

Strength and Conditioning Coach

OneArena Cork - Gemma Healy

Gemma Healy

Club Manager