**Job Description:** We are a fitness center in Bilbao specializing in small-group and personal training. We are seeking a trainer with proven experience in strength and functional training to join us on a part-time basis. A degree in Physical Activity and Sports Sciences, TAFAD (Technician in Physical Activity and Sports), or equivalent qualifications, as well as certifications in functional training, will be highly valued. **Responsibilities:** * Plan and lead strength and functional training sessions for small groups. * Customize training programs according to clients’ goals. * Ensure proper exercise execution and injury prevention. * Monitor client progress and maintain records. * Collaborate in promoting the center’s activities. **Requirements:** * Prior experience as a personal trainer or small-group trainer in strength and functional training. * Relevant qualification (TAFAD, CAFyD, or personal trainer certification). * Strong communication skills and ability to motivate clients. * Availability for part-time work. * Residence in Bilbao or surrounding areas. **We Offer:** * Employment contract and salary according to collective agreement. * Opportunity to increase working hours based on demand. * Immediate start. * Positive work environment. Job Type: Part-time Salary: €600.00–€800.00 per month Expected Hours: 20 hours per week Benefits: * Flexible working hours * On-site gym * Option for an indefinite-term contract * Training program Work Location: On-site