A Trainer is a verified instructor on the Ostathi platform who specializes in delivering practical, skill-based training for career and personal development. 

Trainers work with Trainees—professionals, adult learners, and anyone looking to gain new real-world skills to get a job, earn a promotion, or achieve a personal goal. 

Their expertise covers a wide range of professional fields, such as:

Business & Management (e.g., Project Management, Finance)
IT & Data Science (e.g., Coding, Cloud Computing)
Marketing & Creative Design (e.g., Digital Marketing, Graphic Design)
Professional Certifications (e.g., PMP, IELTS)

In short, a Trainer is your expert guide for acquiring new professional and practical skills.