Management Team

  • Tumay Basaranlar

    Chief Executive Officer

    Prior to co-founding Atlantis Management Group, Tumay was a Portfolio and Hedge Fund Manager for over 8 years. Tumay helped create AMG to capitalize on unique opportunities in the petroleum and retail markets. As CEO, he provides strategic leadership to the business though a strong organizational foundation and by fostering a success-oriented company culture. Tumay oversees the company’s finances and acquisition transactions.

  • Jose Montero


    Jose has three decades of experience in the petroleum and convenience store industries. Prior to co-founding Atlantis Management Group, Jose developed and operated more than 20 branded retail locations. Jose brings a dynamic and practical leadership style and spearheads the company’s new development projects. He plays a critical role in cultivating our key business and government relationships.

  • Jimmy Koshisarli

    Vice President

    Jimmy has over 15 years of experience in the petroleum and real estate industries. He brings a talent for identifying and resolving day-to-day business issues in a cost-effective and practical manner. Jimmy leads our Wholesale and Real Estate Divisions, and works closely with the CEO and President on business acquisitions and the efficient execution of corporate strategies.

  • Terry Valdivieso

    Chief Financial Officer

    Terry joined AMG in 2015 as the company’s Controller and main financial executive. She is a highly-accomplished and results-driven professional who brings more than 10 years of versatile financial and accounting experience to the position. Terry began her career in public accounting and spent five years at a leading Long Island accounting firm.   She earned a Master’s Degree in Taxation from S.U.N.Y. Old Westbury and is CPA certified in the state of New York.

  • Orkun Gonul

    Director of Operations

    Orkun has been with Atlantis Management Group since 2012 fine tuning both our Convenience Store and Petroleum Operations. He currently leads our Atlantis Fresh Market initiative which to date has been extremely successful. Before joining the Atlantis Team, Orkun worked for a petroleum group in New Jersey, handling all aspects of its operations. His thriving for excellence makes him a key member of our team.

  • Alper Kadiloglu

    Director of Supply

    Alper has 20 years of experience in the petroleum industry where he started in an entry-level position. Before taking over our Supply Division, Alper worked in positions of increasing responsibilities, involved in all aspects of the petroleum business. His ease of working with others is a tremendous asset to the company, allowing him to continually find new business and ways to expand our supply efficiently and profitably.

Christine Rojek
Director of Human Resources

Christine recently joined our senior management team and offers over 20 years of progressive experience in Human Resources, Accounting, and Business Management. Prior to joining AMG, Chris began her career in the petroleum industry as the Corporate Controller for the Food Bag chain of convenience stores, with over 50 locations spanning six states. Chris earned her Master’s Degree in Business Management from the University of Harford and uses her employee-centric focus to foster communication across teams and enhance efficiency within the organization.