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Brenda CejasBC
Open to opportunities

Brenda Cejas

@brendacejas

I streamline billing, administration, and client follow-up for growing teams.

Argentina
Message

What I'm looking for

I'm looking for a full-time role where I can support administration, billing, operations, and client follow-up while improving processes and implementing practical digital tools.

At Ulmus Marketing Agency, I manage day-to-day administration, billing, payment follow-up, cash control, documentation, and reporting for a portfolio of approximately 40 clients.

I've designed and implemented three internal digital tools: an administration app, an in-house billing system, and a management platform that improved task organization, deliveries, follow-up, and communication between the creative team and clients.

As a freelance Billing Administrator for Cosmess Construction Company, I issue invoices and electronic tax receipts through ARCA, verify billing data, and organize supporting administrative records.

I bring more than three years of administrative management, customer service, billing, and process organization experience, supported by strong Excel, Google Sheets, and client coordination skills.

Experience

Work history, roles, and key accomplishments

UA
Current

Administrative Officer

Ulmus Marketing Agency

Jan 2023 - Present (3 years 8 months)

Manage day-to-day administrative operations, including customer service, invoice issuance, income and expense records, cash tracking, and document organization. Track payments and overdue accounts for a portfolio of approximately 40 clients, and prepare monthly and annual financial summaries using Excel and Google Sheets.

Education

Degrees, certifications, and relevant coursework

IC

Institucion Cervantes

Higher Technical Degree, Business Administration

2025 -

Pursuing a Higher Technical Degree in Business Administration, currently in the second year.

Tech stack

Software and tools used professionally

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