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Oscar Andres Herreño Ortiz
Looking for a jobData Entry Specialist
Data analyst trained in SQL and Python, who processed and validated billing and financial data at Lean Solutions Group.
ColombiaData Entry Specialist at Lean Solutions Group
Experience
Data Entry Specialist
Processed and analyzed high volumes of billing and financial data, interpreted invoices, and maintained data accuracy across platforms. Collaborated with teams to resolve discrepancies and met productivity and quality targets.
ExcelData ValidationKPI MonitoringData AnalysisBillingFinancial Data
Payroll Tax Specialist
Managed federal and state payroll tax payments for U.S.-based companies, prepared and filed quarterly and annual tax returns, and resolved discrepancies using ADP platforms.
Payroll TaxADPTax ComplianceData AnalysisTax Regulations
Bilingual Sales & Customer Service Representative
Provided sales support and customer service to U.S.-based customers, processed payments, and handled service-related inquiries while meeting performance metrics and sales KPIs.
Customer ServiceSalesPayment ProcessingKPI AchievementBilingual Communication
Education
TripleTen
Currently enrolled in a Data Analyst bootcamp, in progress as of October 2026.
Currently enrolled in a Data Analyst bootcamp, in progress as of October 2026.
Universidad Sergio Arboleda
Completed a Diploma in Data Analytics and Big Data in September 2025.
Completed a Diploma in Data Analytics and Big Data in September 2025.
Unidades Tecnológicas de Santander
Studied electromechanical engineering at Unidades Tecnológicas de Santander, completing in August 2019.
Studied electromechanical engineering at Unidades Tecnológicas de Santander, completing in August 2019.