D i o g o D A T A

Professional background

Gi Group

Jul 2013 - Aug 2024

São Bernardo do Campo - SP

Resident service provider at Volkswagen.

Controller

Jul 2013 - Aug 2024

Responsibilities:

I structured unstructured databases for financial analysis, with SQL queries (for data cleaning and cross-checking) and extractions via SAP HANA IDE, ensuring accuracy and strategic insights.
Performed exploratory analysis using Pandas, Matplotlib and Seaborn in a Jupyter environment, validating operational data integrity (employee data, meals) with a focus on consistency, detection of outliers and hidden patterns, generating interactive visualizations and interpretable reports to identify cost/operational optimization opportunities.
I critically analyzed vehicle occupancy data, linking route, shift and cost information to suggest optimizations in line with operations. I used table queries to propose reallocating employees between shifts, resulting in 30% fewer trips/day.
Documented and presented savings proposals through reports, Business Cases in Excel and PowerPoint presentations, ensuring buy-in from the operational team.
Extracted restaurant access and meal volume data via SQL (Graphical User Interface), creating scripts to consolidate occupancy and cost KPIs, which enabled the reduction of 2 restaurants.
I developed dashboards in Excel and Power Bi to monitor fixed/variable food and transportation costs, with alerts for deviations, generating precision in planning and annual budget savings.
I critically analyzed employee flow data x menu information, identifying volumes and presenting data to the Purchasing sector to renegotiate incidences and save on contracts.
Collaborated with cross-functional teams to meet administrative and operational demands.
Use of advanced tools in the Office package, Power BI (DAX, Power Query), SAP, Senior and K-SRM (general ABAP purchasing system).

Alditel Gestão Econômica em Telecomunicações

Jun 2011 - Jun 2013

São Bernardo do Campo - SP

Personalised support for clients such as Cimpor, JSL Logística and Intercement.

Administrative assistant

Jun 2011 - Jun 2013

Responsibilities:

Assisted in gathering information from users for the development of telecom systems.
Assisted in the implementation and maintenance of systems, as a focal point for clients. Preparing tests, analyzing technical problems and proposing solutions.
I input costs and managed telecom assets, ensuring the optimization of resources and efficient control of investments.
I prepared detailed management reports and dashboards to provide actionable insights to leadership and support strategic decision-making.

Banco do Brasil

Feb 2010 - Dec 2010

São Paulo - SP

Internship in the Banco do Brasil building (Historic Centre of SP).

Accounting intern

Feb 2010 - Dec 2010

Responsibilities:

Preparation of statistical calculations, invoicing, identification of document batches, customer support, telephone support for agencies and preparation of control tables.
Logistics for ATM service and maintenance.

Education

		Univesp 2022-2026 Degree in Mathematics Taken Courses: Statistics, Analytical Geometry and Linear Algebra, Logic and Discrete Mathematics, Calculus, Physics and General subjects, among others.
		Unip 2017-2019 Systems Analysis and Development Taken Courses: Algorithms and Data Structure, Cloud Computing and Devops, Mobile Development, Applied Agile Software Engineering, Object-Oriented Systems Analysis, Database Programming, Mathematics and Statistics, NOSQL Database Modeling, among others.
		Mackenzie 2020-2021 Data Science - Lato Sensu Specialisation Taken Courses: Big Data Architecture, Data Collection and Storage, Big Data Processing, Statistical Analysis, Data Visualization, Data Mining and Analysis.
		Anhanguera 2012-2015 Bachelor of Accounting Sciences Taken Courses: Cost Analysis, Financial Mathematics, Financial Planning and Budgeting, Cost and Industrial Accounting, Tax Accounting and Tax Planning, Working Capital and Financial Analysis, among others. Enrolment locked in 3rd year.