g
grostirolla

Guilherme R.

@grostirolla

Power BI Dashboards and Excel Data Cleaning

Brazil
Portuguese
About me
I turn Excel and CSV files into clear Power BI dashboards and refreshable Power Query workflows. My professional experience supported six companies and reporting used by 40+ people. Services: sales dashboards, KPIs, data cleaning and file consolidation, with documented steps and handover instructions. Training in Power BI, SQL, Python and Power Automate; Systems Analysis and Development student (expected 2027). Send an anonymized sample to agree on scope before ordering. Portfolio demos use fictional data.... Read more

Skills

g
grostirolla
Guilherme R.
Offline • 
Average response time: 1 hour

See my services

Data Dashboards
I will create a power bi sales dashboard from excel or CSV
From$45 / projectMore details
Data Cleaning
I will clean and combine excel or CSV data with power query
From$20 / projectMore details

Work experience

Bertolini

Innovation and Digital Transformation Assistant

Bertolini

Jan 2026 - Oct 2026 • 9 mos

Developed Power BI dashboards and KPIs for an industrial group with six companies, used by 40+ professionals. Worked on data preparation in Power Query, data validation, access control, technical documentation and user training. Centralized the monitoring of more than 1,000 ideas and approximately 300 projects to support management decisions.