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Mariela LyonsML
Open to opportunities

Mariela Lyons

@marielalyons

International negotiator and logistics professional specializing in shipment tracking, carrier coordination, and invoice accuracy.

Colombia
Message

What I'm looking for

I’m looking to join a logistics-focused team where I can improve shipment visibility, manage incidents end to end, and ensure contract-based invoice accuracy that prevents overbilling and unauthorized charges.

I’m a dynamic International Negotiator with 11 years of experience in shipment tracking and transportation logistics, focused on driving efficiency and visibility across U.S. supply chain operations. I’m known for delivering high accuracy in tracking data and enhancing workflow efficiency through proactive monitoring and collaboration with cross-functional teams.

In my most recent role with BlueCargo, I map and validate incoming invoices, audit charges against customer contracts, dispute billing discrepancies, and ensure proper invoice resolution to protect clients from overbilling. Previously at ITG Transportation Services, I handled Track and Trace responsibilities—keeping information up to date, supporting load board priorities, validating container pickup bookings, and coordinating to resolve booking and equipment availability issues. Earlier, as a Customer Service Assistant at ULTRACEM SAS, I supported order management, claims handling, invoicing, and delivery incident resolution while scheduling and updating information via ERP/CRM.

Experience

Work history, roles, and key accomplishments

BL
Current

Invoice Audit & Dispute

BlueCargo

Oct 2025 - Present (8 months)

Audited and validated incoming invoices for billing accuracy and contract compliance, identifying and disputing detention, demurrage, per diem, and accessorial discrepancies. Partnered with internal teams and external parties to resolve billing issues and protect clients from overbilling.

II

Shipment Tracking Specialist

ITG Transportation Services, Inc.

Jul 2021 - Sep 2025 (4 years 2 months)

Maintained and improved shipment tracking data by updating internal systems using SSL-provided information and validating container pickup bookings. Coordinated with internal and external teams to resolve booking, critical-date, and equipment availability issues to keep operations running smoothly.

Education

Degrees, certifications, and relevant coursework

Universidad del Norte logoUN

Universidad del Norte

International Business Professional, International Business

2007 - 2013

Grade: 4.3

Activities and societies:

Studied International Business at Universidad del Norte

Tech stack

Software and tools used professionally

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