Summary
Overview
Work History
Education
Skills
Certification
Languages
Software
Timeline

Daniel Sarmiento

Master Data Analyst
San José
"Success is the sum of small efforts, repeated day in and day out."
– Robert Collier

Summary

Data Analyst with 3+ years of experience in BI, data modeling, and automation. Skilled in Power BI, SQL, Excel, and VBA to build dashboards, optimize ETL, and manage large datasets. Strong background in master data management, KPI reporting, cross-team collaboration, and team leadership. Proven ability to transform data into actionable insights and drive business decisions in Agile environments.

Overview

3
3
years of professional experience
4
4
Certificates
2
2
Languages

Work History

Team Lead - Master Data Analyst

Alpemusa S.A. (Pequeño Mundo)
08.2024 - Current
  • Lead the Master Data team, assigning tasks, monitoring workload distribution, and overseeing performance metrics.
  • Developed and maintained dashboards in Power BI and Excel to track master data KPIs such as code creations, data modifications, and request types.
  • Validated data integrity and ensured documentation of all master data processes.
  • Collaborated with the IT department to design SQL queries and automate daily operations, improving data flow and reducing manual input.
  • Spearheaded continuous improvement projects focused on enhancing data quality and operational efficiency.
  • Provided justification reports for brand creation, vacation planning, and department-level decision-making.

Master Data Analyst

Alpemusa S.A. (Pequeño Mundo)
06.2023 - 08.2024
  • Managed the creation, modification, and deactivation of SKUs in the master data system, ensuring data quality and consistency across departments.
  • Handled end-to-end ticket lifecycle, documenting delays and blockers to improve visibility and resolution.
  • Automated repetitive tasks using Excel macros (VBA), increasing operational efficiency and reducing manual errors.
  • Developed team performance reports based on KPIs such as number of SKUs processed and average handling time.
  • Coordinated with IT, Operations, and Sales to ensure data alignment with inventory and sales workflows.
  • Standardized internal processes by developing manuals and documentation to facilitate training and consistency.

BI & Big Data Analyst

Liberty
07.2022 - 04.2023
  • Transformed unstructured data into structured formats using tools such as Power BI and SQL Server to meet reporting needs across departments (Marketing, Sales, Customer Service, Billing, Collections, IT, Fraud, etc.).
  • Maintained OLAP cubes and developed interactive dashboards and web-based reports.
  • Designed, automated, and monitored ETL pipelines, significantly improving data availability and processing efficiency.
  • Ensured data integrity through robust validation and cleaning processes across multiple databases.
  • Created comprehensive documentation to support team onboarding and knowledge sharing.
  • Collaborated with cross-functional teams to translate business requirements into scalable technical solutions.

Education

Bachelor’s Degree - Computer Systems Engineering

Fidelitas University, San Pedro, Costa Rica
05.2001 -
  • Intern – Software Development & Systems Analysis, Comuna S.A. - 2021.
  • Certifications
    Cisco CCNA 1: Introduction to Networks – 2021
    Cisco CCNA 2: Switching, Routing, and Wireless Essentials – 2021

Course - Power BI

Costa Rican Institute of Technology, Cartago, Costa Rica
05.2001 -

Skills

Power BI Dashboard Development

Certification

Introduction to Data Science - CISCO

Languages

Spanish
Native or Bilingual
English
Professional Working

Software

Power BI

Excel (advanced)

SQL

VBA

SSIS

Power Query

DAX

Python

MongoDB

Timeline

Team Lead - Master Data Analyst - Alpemusa S.A. (Pequeño Mundo)
08.2024 - Current

Introduction to Data Science - CISCO

11-2023
Master Data Analyst - Alpemusa S.A. (Pequeño Mundo)
06.2023 - 08.2024

R for Big Data Essential - LinkedIn Learning

06-2023

Python for data science and big data essentials - LinkedIn Learning

05-2023

SQL Server: Essential Integration Services - LinkedIn Learning

05-2023
BI & Big Data Analyst - Liberty
07.2022 - 04.2023
Fidelitas University - Bachelor’s Degree, Computer Systems Engineering
05.2001 -
Costa Rican Institute of Technology - Course, Power BI
05.2001 -

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Daniel SarmientoMaster Data Analyst