JULIO MENDOZA
@juliomendoza2
I build enterprise Power BI analytics that automate reporting and improve business decisions.
PeruWhat I'm looking for
I'm the sole developer and administrator of the Power BI stacks for BTP Group and Grupo LaMadrid, delivering 18 semantic models and 45 reports used by 85 people across nine business areas. I turn ERP, SQL, SharePoint, and operational data into twice-daily refreshed decision tools.
At Entel Perú, I led a three-person reporting team and managed KPI monitoring for more than 100 users. I modeled billion-row SMS datasets, migrated commercial and campaign dashboards to Power BI, and improved team throughput by 25% while increasing indicator accuracy.
Through MenquisBI, I also teach Power BI in Spanish to a community of 27K YouTube subscribers, 900+ course students, and hundreds of one-on-one consulting clients across LATAM and Spain.
Experience
Work history, roles, and key accomplishments
Senior BI Developer
MenquisBI
Dec 2023 - Present (2 years 8 months)
Sole developer and administrator of the Power BI stack for two European groups: 18 semantic models and 45 reports for 85 users, saving 36 analyst-hours per week. Independent clients: RO Medical (aesthetic medicine, Argentina), Llana Consultores (tax advisory, Spain), ADRASA (textile chemicals, Spain) and Pervasive Mind (Chile), modeling scraped data from MySQL into Power BI.
Power BI Instructor
DMC Perú
Jul 2021 - May 2024 (2 years 10 months)
Lead instructor for three programs: the Power BI and Data Visualization specialization, DAX, and Excel Dashboards with Power Query. Trained working analysts in dimensional modeling, DAX patterns and report design.
BI Consultant
Fluxus
Jan 2023 - Jul 2023 (6 months)
Rebuilt dimensional models for Entel Perú's Power BI reporting, improving performance by over 50%. Managed daily operations of 15 production reports.
Reporting Coordinator
Entel Perú
Nov 2021 - Jan 2023 (1 year 2 months)
Led a 3-person reporting team, owning KPI monitoring for a national telecom operator. Modeled datasets exceeding 1 billion rows and migrated dashboards to Power BI, improving team throughput by 25%.
Commercial & Operations Controller
Teoma Global
Oct 2020 - Nov 2021 (1 year 1 month)
Led regional commercial controlling team, tracking target attainment and strategic initiatives. Enabled a 12% increase in monthly sales and 10% reduction in operating costs through Power BI dashboards.
Jr. BI Analyst
Cencosud S.A.
Aug 2019 - May 2020 (9 months)
Built commercial and planning dashboards in MicroStrategy and Power BI on SQL Server. Automated KPI generation and daily/weekly ETL with T-SQL.
Pre-Professional Intern
Banco Central de Reserva del Perú
Jul 2017 - May 2018 (10 months)
Developed real-estate price series and process automation using Power BI, SQL, and R.
Education
Degrees, certifications, and relevant coursework
Universidad Nacional Mayor de San Marcos
Bachelor of Arts, Economics
2012 - 2017
Bachelor of Arts in Economics from the Universidad Nacional Mayor de San Marcos, completed from 2012 to 2017.
Tech stack
Software and tools used professionally
Availability
Location
PeruAuthorized to work in
Portfolio
youtube.com/@MenquisBISalary expectations
Social media
Job categories
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