Open to opportunities

Donjhon Magarro

@donjhonmagarro

Message

Customer service and technical support specialist who builds reliable web solutions.

Philippines

Message

What I'm looking for

I’m looking to deliver customer-first technical support in a fast-paced team, troubleshoot confidently, and keep growing toward web-development support work—turning complex issues into clear fixes that improve both systems and customer experience.

I’m a results-driven Computer Science graduate with professional experience in IT support, customer service, technical troubleshooting, and web development. I focus on resolving technical and customer-related concerns quickly while keeping communication clear and professional.

In my current role as a Customer Service Representative at T-Mobile, I handle high-volume billing, account management, service inquiries, and technical troubleshooting. I assist with mobile device and network-related issues, manage account verification and service modification requests, and handle escalated concerns with empathy in a fast-paced BPO environment.

Previously at Radius Global Solutions, I worked with US utility collections—handling inbound and outbound calls and responding to customer email inquiries. I consistently supported customers with billing, account access, service changes, and technical issues while maintaining strong satisfaction and accuracy standards.

As a working student, I supported school and agency systems by troubleshooting hardware and software, improving processes with QA testing, and assisting ReactJS-based internal web applications. I’ve built a habit of combining problem solving, testing, and teamwork to improve performance and user experience across both support and development.

Experience

Work history, roles, and key accomplishments

Current

Customer Service Representative

Current

T-Mobile

Jan 2026 - Present (6 months)

Handled high-volume customer interactions for billing, account management, technical concerns, and service inquiries. Provided troubleshooting for mobile device, network, and account access issues, including account verification and service modification requests.

Customer Service Billing Support Account Management Technical Support Troubleshooting Mobile Device Support

CSR / Collections Agent

Radius Global Solutions

May 2024 - Nov 2025 (1 year 6 months)

Managed utility collections for a US account by handling inbound and outbound customer calls and responding to customer email inquiries. Addressed billing, account management, and service-related concerns with high-volume customer interactions.

Collections Support Customer Service Inbound Outbound Calls Email Support Billing Support Account Management Troubleshooting

IT Staff

AMA East Rizal

Jan 2023 - Mar 2024 (1 year 2 months)

Supported school IT infrastructure and laboratory systems, performing troubleshooting, repair, testing, and maintenance of hardware and software. Conducted QA testing for student-developed web applications and collaborated with the IT head to improve technical processes and system performance.

IT Support Hardware Maintenance Software Maintenance Troubleshooting Repair Testing QA Testing Process Improvement Systems Performance

IT Development Support

Garuda Agency

Oct 2020 - Dec 2022 (2 years 2 months)

Assisted in monitoring and maintaining ReactJS-based internal web applications. Identified software bugs and UI/usability issues, supported front-end enhancements, and helped with QA testing prior to deployment releases.

UI UX Issue Identification Usability Testing QA Testing Deployment

Computer Technician / Sales

Cashcow Netopia

Apr 2017 - Nov 2019 (2 years 7 months)

Provided technical support for computer setup, troubleshooting, and printing services, assisting customers with technical concerns and basic software issues. Handled POS transactions and supported inventory management alongside customer support responsibilities.

Setup Troubleshooting Software support Customer Support POS Inventory Management