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Estella Kos has a diverse work experience spanning over several companies and roles. Estella has held various positions in customer service, sales operations, and quality assurance. Estella's most recent role is Director of Customer Service & Sales Operations at JR286, where they started in April 2022. Prior to that, they worked as a Customer Service Manager and Distributor Support Supervisor at JR286. Before joining JR286, Estella worked as a Quality Manager at Telfort in 2011. Estella also held positions as a Quality Assurance Manager and Global Head of Customer Service at Markit, a Manager of Customer Support at MarketXS, and a Customer Service Executive at MarketXS/Markit. Estella's career started at BT Worldwide as a Customer Service Representative and they later became a Consultant at Aquent. Estella began their professional journey at Libertel as a Customer Service Representative/Team Leader. Estella has a strong background in customer service and shows a progression in their career, taking on more prominent roles over time.

Estella Kos attended Hotelschool Amsterdam from 1988 to 1990, but no degree or field of study information is provided.