John Mark Tolentino

IT SPECIALIST | PROGRAMMER
tolentinojohnmark999@gmail.com

Passionate IT Specialist and Programmer with expertise in Cloud computing, full-stack development, cybersecurity, and IT infrastructure management. Dedicated to leveraging technology for innovation and efficiency.

Experience

IT Specialist

TSUKIDEN ELECTRIC INDUSTRIES PHILIPPINES, INC.
  • Managed and maintained Windows and Linux servers, ensuring optimal performance and security.
  • Automated IT operations and system processes using PowerShell, Bash, and Python scripting.
  • Configured and troubleshooted network infrastructure, including switches, routers, and firewalls.
  • Designed and maintained relational and NoSQL databases (SQL Server, MySQL), ensuring data integrity and performance tuning.
  • Developed, optimized, and secured database queries, stored procedures, and indexing strategies.
  • Developed web and desktop applications using PHP, Python, JavaScript, C#, and Java.
  • Managed and designed Company website and internal systems
  • Diagnosed and resolved hardware, software, and network-related issues for end-users and enterprise environments.
  • Performed cybersecurity assessments, vulnerability scanning, and penetration testing.
  • Managed virtualization environments using VMware, Hyper-V, and VirtualBox.
  • Provided end-user support, IT documentation, and training for internal teams.
June 2023 - Present

Web Developer | Administrator

MCC Consulting
  • Designed and developed responsive, SEO-optimized WordPress websites using HTML, CSS, Bootstrap, and JavaScript.
  • Configured and maintained web hosting environments, ensuring uptime and performance optimization.
  • Integrated SQL database solutions for dynamic content management and efficient data retrieval.
  • Implemented security best practices, including firewall configurations and SSL certificate management.
  • Managed Linux-based web servers and automated routine maintenance tasks.
  • Used data analytics tools (Google Analytics, Power BI) to monitor website traffic and improve UX.
May 2021 - Feb 2023

Education

Batangas State University

Bachelor of Science in Information technology

Skills

Programming & Development

  • PHP, JavaScript, Python, C#, HTML, CSS, Bootstrap, Kotlin
  • AI Chatbot Creation
  • Android App Development
  • PowerShell / Python Automation
  • SQL/MySQL Database Administration

IT & Infrastructure

  • Windows Server Management
  • Network Configuration
  • Cloud Servers / Computing
  • Linux Administration and KALI tools
  • Penetration Testing
  • VPN Setup & Security

Data & Analytics

  • Power BI Tools
  • Machine Learning & AI Basics
  • Microsoft 365

Other Skills

  • IT Support & Troubleshooting
  • Web Hosting & Domain Management
  • SEO Optimization
  • Virtual Machines

Interests

Apart from being an IT Professional, I enjoy staying active and continuously learning. I spend my time at the gym, running, and expanding my knowledge by reading books and studying various topics. Physical and mental growth are both important to me.

When indoors, I explore new technologies, dive into different subjects, and keep up with the latest advancements in technologies. I believe in lifelong learning and constantly challenging myself in different ways.