Open to opportunities

Rosario Mark Sagun

@rosariomarksagun

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Customer service specialist with 5+ years in telecom, cybersecurity, sales, and retention.

Philippines

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What I'm looking for

I seek a customer-focused role where I can apply technical troubleshooting, retention and sales skills in a collaborative environment with growth opportunities.

I am a customer service specialist with over five years' experience supporting telecommunications and cybersecurity accounts, handling billing, retention, sales, and tier‑1 technical support. I have worked in both voice and non‑voice roles and have proven ability to manage high‑volume customer interactions under pressure.

I am adaptable, a fast learner, and comfortable working in teams or independently; I was recognized as an exchange employee intern through YMCA and completed roles that combined technical troubleshooting with customer retention and sales outcomes.

Experience

Work history, roles, and key accomplishments

Non-voice Technical Support

Exacot

Jul 2023 - Apr 2025 (1 year 9 months)

Handled customer technical concerns for a cybersecurity account via chat and email, resolving issues and maintaining response SLAs.

Chat Support Email Support Technical Troubleshooting Customer Service Communication Fast Learner

Customer Support Specialist

Tata Consultancy Services

Jul 2022 - Jul 2023 (1 year)

Provided voice support for a telecommunications account handling tier 1 technical support, sales, retention, and billing inquiries to maintain service continuity.

Technical Support Billing Sales Retention Communication Time Management Teamwork

Customer Service Specialist

Qor Philippines Inc.

Oct 2019 - Jun 2022 (2 years 8 months)

Managed customer billing, retention, sales, and technical support for a telecommunications account, contributing to customer satisfaction and account retention.

Customer Service Technical Support Billing Support Sales Retention Communication Microsoft Excel

Customer Service Specialist

Sitel Philippines

Mar 2019 - Oct 2019 (7 months)

Handled billing, retention, sales, and tier 1 technical support for a telecommunications account, resolving customer issues and improving first-contact resolution.

Customer Service Tier 1 Support Billing Support Sales Retention Communication Microsoft Office Multitasking

Program Assistant

YMCA of Pangasinan Inc.

Feb 2013 - Jan 2018 (4 years 11 months)

Supported YMCA programs and was selected for a one-year exchange/internship in Thailand, contributing to program delivery and cross-cultural initiatives.

Program Support Coordination Cross Cultural Communication Teamwork event support