Alexander Sierra is a highly skilled software developer with extensive experience in artificial intelligence and web development. Currently contracted as an AI trainer at DataAnnotation since 2025, Alexander previously served as a Senior Software Engineer at Fiveable from September 2020 to December 2024, where significant contributions included architecting a Stripe payment platform, implementing A/B testing frameworks, and creating a CMS system for practice questions. Additional experience includes leading a team at BloomTech and working as a Document Imaging Specialist at the University of Rochester Medical Center. Alexander holds a Bachelor of Science in Health Sciences from the University of Central Florida and has completed various certifications and training in software development and phlebotomy.
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