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Mark Kelleher is currently serving as the Sr Lead Full Stack & Mobile Engineer at US Service Animals, the leading online resource for emotional support and service animals. Prior to this role, Mark has worked in various positions such as Software Architect at Ellumen, Inc., Lead Mobile Developer at Jassby, and Chief Technology Officer at Cyborg. With a strong background in web and mobile development, Mark has also held positions such as Senior Web Developer / Project Manager at Berkshire Hathaway Verani Realty and IT Web Administrator / J2EE Developer at Orchard Management. Mark's expertise and experience in the field make him a valuable asset to any organization Mark works with.