The researchers conducted an inquiry into the operations of the school. It was found that a major part of their business process involves the use of Google sheets to manage their data, e.g. student information, teacher information, grades, etc., and is prone to human error thus resulting to an inconsistent and unreliable information. The goal of this project is to produce a school portal and student information system which will not only address the problem of data inaccuracy but will also allow the stakeholders of the school -- administrators, teachers, students, and parents --to achieve a better business workflow. The system developed specifically handles senior high component of the K to 12 program wherein a student enrolls in one of the four senior high academic strands: (1) GAS, (2) HUMSS, (3) STEM, and (4) ABM. The created system, which employed the agile methodology, handled student and teacher records management, grades computation and repository, curriculum administration, and scheduling. The browser- based system was evaluated by the school with satisfactory results. This paper shares the systems implementation process and results.