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Sean Rolinson has extensive experience in infrastructure engineering within the financial sector, currently serving as the Head of xETG/xMDT/VCMM Infrastructure at Virtu Financial since its acquisition of KCG Holdings, Inc. in July 2017. Rolinson has been with KCG Holdings, Inc. since August 2013, leading a team responsible for the design, deployment, and administration of thousands of Linux servers across global environments for high-frequency trading and computing. Previous roles include AVP at Knight Capital Group and various senior network engineering positions at All Options, Tribeca Tables, Plus Three, and ShieldIP. Rolinson also served as CTO at Charm Net, an ISP in Baltimore, MD, and was VP of Infrastructure at Bigfoot International, a spin-off from Bigfoot.com. Education includes attendance at Anne Arundel Community College.