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Fiverr Pro
Nederlands
$
USD
Raniery M.
@ranierymansilla
Data Analyst and Advanced Excel Specialist
Guatemala
Engels, Spaans
Over mij
Messy data causes expensive mistakes. I help businesses clean, structure, and reconcile complex datasets.
As a former Central Bank Economic Analyst with 3+ years in high-volume data validation and bilingual (EN/ES) back-office operations, I bring institutional-grade rigor to your raw data.
My expertise:
• Data Cleaning: Transforming unstructured data into analysis-ready Advanced Excel formats.
• Reconciliation: Cross-referencing sources to eliminate anomalies.
I don't just input data; I validate its logical consistency. Let’s streamline your operations.
Skills
Raniery M.
offline •
Bekijk mijn diensten
Gegevens opschonen
I will clean format and organize your messy excel database
Werkervaring
Economic Analyst - Central Bank of Guatemala
Contractor • Fulltime
Oct 2025 - Apr 2026 • 6 mos
Executed high-level data reconciliation and structural consistency validation for complex macroeconomic indicators. • Data Cleaning & Validation: Processed and validated complex cost-structure surveys from diverse industries, ensuring zero-error filtering and logical consistency before database integration. • Statistical Reconciliation: Conducted supply-use reconciliation at the activity level, cross-referencing disparate, high-volume data sources to isolate and fix data anomalies. • Database Optimization: Structured unstructured raw institutional data into clean, analysis-ready matrices using Advanced Excel.
Logistics Back-Office & Customs Resolution Specialist (FedEx Account)
TELUS International • Fulltime
May 2024 - Mar 2025 • 10 mos
Handled complex international logistics and customs clearance documentation for the FedEx account. • Managed outbound and inbound communications to resolve customs bottlenecks, triangulating data between US shippers and international recipients. • Cross-referenced shipping documents, requested missing paperwork, and ensured compliance for international package release. • Resolved Tier-2 delivery disputes under continuous operational pressure and strict global SLAs.
Healthcare Back-Office & Insurance Verification Specialist (Connect International, LLC)
Contractor • Fulltime
Jan 2022 - Jan 2024 • 2 yrs
Managed back-office operations and patient data for US hospital networks (including Medstar Health and Memorial Hermann Health System). • Analyzed patient profiles and accurately categorized CPT codes for inpatient and outpatient treatments. • Conducted rigorous insurance verification, cross-referencing deductibles, co-payments, and coverage limits directly with insurance providers. • Maintained strict accuracy and confidentiality in high-volume medical data environments.
