Chenczen C. Rafael

BS in Information Systems

Hello, I am Chenczen C. Rafael from Sta.Lucia, Quirino, Isabela, an alumnus of Isabela State University – Main Campus, holding a Bachelor of Science in Information Systems degree. During my academic years, I acquired a strong foundation in both the theoretical concepts and practical applications of Information Systems. My coursework and hands-on projects covered a wide range of areas including Programming, IT Networking, IT Diagramming, Database Management, Computing Mathematics,Business Process Management, and Computer Fundamentals. After graduated in college, I continued to improve my IT skills by providing academic assistance and technical services. I supported students in IT, IS, and CS programs by assisting them with:
- IT Networking tasks using Cisco Packet Tracer,
- IT Diagramming tasks using Draw.io,
- Database Management tasks using MySQL Workbench,
- and Coding assignments and Web projects using Visual Studio Code (VSCode)
Through these initiatives, I applied my knowledge to real-world academic challenges, helping students improve their technical competencies and succeed in their coursework.


Download Resume
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Services

Academic and Vocational Assistance for students and other clients.

I

IT Infrastructure:

Providing Network Topologies and Configurations using Cisco Packet Tracer.


II

System Design:

Designing and Modeling Systems using Draw.io.


III

Information Management:

Setting up Database and Query of Tables using MySQL Workbench.


IV

Console Programming and Web Development:

Developing basic Web Applications using HTML, CSS, and JavaScript for Static and PHP, and MYSQL for CRUD and coding console using Java and C++.


V

Server Outsourcing:

Becoming a third party between Server and Client for a certain project.


IT Skillsets

Essential services crucial for Business Process improvement

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01

IT Networking (Intermediate): Knowledgeable in Applying Networking Core Concept incorporating it to the Real-World Scenarios ranging from Setting the Infrastructures to Troubleshooting Network issues.

  • IP Addressing
  • Subnetting.
  • Routing
  • Switching
  • Network Testing and Troubleshooting
  • Network Topologies & Design/
  • Monitoring
  • Cabling
  • Load Balancing
  • VoIP Management
  • Server Management
  • VLAN Management
  • Network Security
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02

IT Diagrams (Intermediate): Ability to Understand the Flow and Processes by bridging the Technnology and Management by Mapping and Visualizing it via Diagrams.

  • Flowchart
  • Data Flow Diagram (DFD)
  • Entity Relationship Diagram (ERD)
  • Functional Decomposition Diagram (FDD)
  • Unified Modeling Language (UML)
  • Business Process Modeling and Notation (BPMN)
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03

Database (Intermediate): Capable of using proper Data Types and performing Mysql queries and conditional statement base on Data and Logic needed in a Problem Sets.

  • Queries
  • Schema
  • Data Backup
  • Algebraic Operation
  • Connecting
  • Database Modeling
  • CRUD Operation
  • SQL Joins
  • Normalization
  • Database Monitoring
  • Database Security
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04

Web Development (Beginner): Has basic knowledge in developing simple website from landing page, responsive one, and basic CRUD websites.

  • WordPress
  • Back-end(PHP, MySQL)
  • Front-end(JavaScript, HTML, CSS)
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04

Others: Important Skills that can thrive in working Environment

  • Information Systems Strategic Planning
  • Console Programming (Java, C++)
  • Conceptual Business
  • Time Management
  • Pleasing Personality
  • Comunication
  • Willingless to learn
  • Basic Math

My Projects

IT-Networking-DHCP-VLAN-Telephony

Basic Networking Topology with DHCP addressing for Each End Devices in Both VLANs, setting up Telephony service in Voice VLAN.

Project Screenshot

IT-Networking-IP-Routing-OSPF

Basic Networking Topology with DHCP addressing, VLAN Management, and IP Routing for Each Networks.

Project 2 Screenshot

Database-Management-Insert-Select-Update-Delete

Basic CRUD Operation in MySQL for Restaurant Database.

Project 2 Screenshot

IT-Diagrams-Data-Flow-Diagram-of-Student-Management

Data Flow Diagram of Student Management with Shapes Styles.

Project 4 Screenshot

IT-Networking-Small-Business-Network

Network Topology for Small Business with DHCP, Telephony, VLAN, Port Security, HSRP, Router Password, and OSPF.

Project 5 Screenshot

Database-Management-Grocery-Store

Database Model for Grocery Store with INSERT and SELECT Operation and CASE and JOINS queries.

Project 6 Screenshot

IT-Diagramming-Call-Center-Agent

Business Process Model and Notation of Call Center Agent Responsibility.

Project 7 Screenshot

IT-Networking-Site-to-Site-VPN

IT Infrastructures for Onsite and Work From Home Employees using VPN Tunnel via Site to Site.

Project 8 Screenshot

IT-Diagramming-Ordering System

Business Process Model and Notation of a simple ordering system via online.

Project 9 Screenshot

IT-Networking-Office-LAN

A simple demonstration of Network Architecture for Office with common protocols.

Project 10 Screenshot

IT-Networking-Security-for-LAN

A LAN with basic Security features and IT Services.

Project 11 Screenshot

Oops!!!, out of Contents

Another Projects will be created soon, stay tune and uptated

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🤖 use ? to see the allowed command

Contact Me