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Guillermo Pereira is a seasoned software engineer with extensive experience in various technology roles. Currently serving as a Senior Software Engineer at National Student Clearinghouse since February 2009, Guillermo manages large data sets for over 4,300 U.S. colleges and universities. Previous positions include Senior IT Analyst/Programmer at NVR, Inc., where support was provided for HR, Payroll, and Financial departments throughout the software development lifecycle, and a Web Developer at Field Data Technology. Guillermo's background also encompasses IT management and programming roles at Strategic Outsourcing, TEX-FIL, and Organización Carvajal, highlighting skills in SDLC, application development, and database administration. Educational qualifications include a B.S. in Computer Science Engineering and multiple certifications in Oracle, Java, and ethical hacking.