Open to opportunities

Sebastian Ortiz

@sebastianortiz1

Administrative billing and logistics professional who streamlines invoicing, documentation, and customer service with data-driven accuracy.

Colombia

Message

What I'm looking for

I’m looking for a billing/operations role where I can own invoicing workflows, use QBO and CRM tools, monitor KPIs, and keep documentation accurate—while improving efficiency and customer outcomes.

I’m a bilingual, results-oriented professional with experience across billing, documentation, customer service, data entry, sales support, and logistics coordination. I specialize in improving workflows by standardizing processes and solving invoice discrepancies with strong attention to detail.

In my current role as an Administrative Billing Coordinator, I manage end-to-end billing operations—invoice creation, validation, and submission—and act as a subject-matter expert in QuickBooks Online (QBO). I monitor KPIs and implement improvements to optimize billing performance, while supporting financial reporting and maintaining accurate billing documentation.

Previously, as a Logistics Coordinator, I oversaw logistics and administrative operations, including billing and documentation for transportation and cargo tracking. I also delivered customer support across voice and chat channels, focusing on issue resolution and cross-selling, and handled unresolved cases using data analysis and Salesforce-based routing.

Experience

Work history, roles, and key accomplishments

Current

Administrative Billing Coordinator

Current

DVM Industries

Aug 2025 - Present (10 months)

Managed end-to-end billing operations, including invoice creation, validation, and submission. Served as a QuickBooks Online (QBO) subject-matter expert and improved billing process efficiency by standardizing workflows.

Quickbooks Online Billing Operations Invoice Invoice Validation Financial Documentation Process Standardization

Logistics Coordinator

Lean Solutions Group

Oct 2024 - Aug 2025 (10 months)

Coordinated logistical and administrative operations to support customer satisfaction. Oversaw billing and documentation for transportation and cargo tracking while maintaining accurate data entry and invoicing records.

Logistics Coordination Data Entry Invoicing Operational Compliance Customer Service Administrative Operations

Administrative Agent

Foundever S.A.

May 2024 - Dec 2024 (7 months)

Managed unresolved cases using data analysis and accurate documentation. Routed cases to appropriate departments using CRM tools such as Salesforce to support timely resolution.

Salesforce Data Analysis Documentation Customer Support Workflow Management Administrative Operations

Workforce Backup

Foundever S.A.

Jul 2023 - Dec 2024 (1 year 5 months)

Supported workforce operations with real-time adherence tracking, scheduling, and metrics reporting. Handled documentation tasks related to schedule management and validated daily reports for service-level adjustments.

Workforce Management Scheduling Reporting Metrics Analysis Validation Service Level Management

Voice Agent

Foundever S.A.

Nov 2023 - May 2024 (6 months)

Provided English-language customer service by phone with a focus on issue resolution and cross-selling. Documented complex inquiries accurately to support effective follow-up and resolution.

English Customer Service (C1)Phone Support Cross Selling Case Documentation Customer Support inquiry handling

Chat Agent

Foundever S.A.

Jul 2023 - Nov 2023 (4 months)

Delivered customer support via live chat, resolving requests quickly and accurately. Promoted additional services and products to help improve revenue.

Live Chat Support Customer Service Cross Selling Communication Skills

Education

Degrees, certifications, and relevant coursework

Colegio El Escorial

Academic Baccalaureate, Public Accounting

Activities and societies: Social Media Marketing with Meta Ads; Smart Academy: Community Manager; Conversational English Level C1 (Certified).

Graduated in Academic Baccalaureate with an emphasis in Public Accounting and completed related certifications and courses. Included training in Social Media Marketing with Meta Ads, Smart Academy community management, and Conversational English Level C1 (certified).