About
Hello! I'm glad you're here. I am a lifelong learner and passionate about data.
Data Scientist | Business Analyst
I provide insights and optimize business understanding and decision-making through data.
- E-mail: diassmatheus@outlook.com
- City: São Paulo, SP - Brasil
- Phone: +55 (11) 99668 5749
- Pronouns: He/His
Skills
Data Visualization
Dashboards | Executive reports and presentations | Generation of business insights through DataViz
Probability and Statistics
Descriptive statistics | Probability distribution | Statistical inference | Statistical hypothesis test
Communication
Effective oral and written communication | Interaction with various stakeholders | Storytelling with data
ETL (Extract, Transform, Load)
Extract, transform and load large volume of data in different file formats
Data Wrangling
Data cleaning | Detection and treatment of missing values and outliers | Standardization | Normalization
Machine Learning Algorithms
Clustering | Dimensionality reduction | Regression | Classification
Tools
Excel
Advanced formulas and functions | PivotTables | Dynamic Charts | Macros | VBA
Python
Pandas | NumPy | Matplotlib | Seaborn | Scikit-learn
Power BI
DAX functions | Measures | Power Query | Data modeling | Distributing reports and dashboards
MySQL
DML | JOINs | Aggregate & Constraints Functions | Subqueries | Stored Procedures
GitHub
Creation and configuration of repositories | Collaboration and code versioning
Git
git init | git clone | git add | git commit
Languages
Portuguese
Native speaker
Spanish
Alignment of strategies and results calculations with the Spanish company's headquarters
English
Perfect reading and listening comprehension. Speaks between intermediate and advanced.
Resume
Academic Education
Production Engineering - Bachelor degree
Universidade Tecnológica Federal do Paraná - UTFPR
Conclusion in 2024
Throughout my undergraduate studies, I participated voluntarily in the scientific initiation program, published articles in scientific journals and conferences, and engaged in social and cultural extension programs.
Graphic Design - Bachelor degree
Centro Universitário Belas Artes de São Paulo
Interrupted in 2014
Although not having completed the course, the concepts learned are valuable, particularly for data visualization, project management, user-centered thinking, and the pursuit of disruptive and sustainable solutions.
Professional Experience
Telefonica Tech
Key tools: Excel, Power BI, Python, SQL, Salesforce
Mid-level Data Analyst - Quality and Strategy
jun/2024 - present- Increased revenue by 4.1 million BRL through analysis of incorrect pricing and unexecuted billings.
- Project monitoring focused on streamlining revenue generation.
- Selection and manipulation of large volumes of data to support business decision-making.
- Development of data visualization pieces, such as dashboards, to monitor metrics, KPIs and OKRs.
Junior Data Analyst - Quality and Strategy
jan/2022 - may/2024- Development and management of the comercial incentive plan for the sales and pre-sales teams.
- Statistical analysis to define operational, financial and sales targets.
- Measuring targets individually and by business segments.
- Measurement of internal marketing campaigns.
Intern - Strategic Planning
jul/2021 - dec/2021- Descriptive analysis, such as the impact of economic indices on price adjustments; revenue x average implementation time of some solutions; etc.
- Product cannibalization analysis.
- Tracking of renewal leads.
- Calculation of cancellation fees.
Courses & Certifications
Publications & Academic Contribttions
GPOMD
Data Mining and Optimization Research Group - GPOMD
Member of the research group since oct/2021 - link
Principia Magazine
Scientific and Technological Dissemination of the Federal Institute of Paraíba - IFPB
Publication: "Clustering techniques applied to the OECD Green Growth indicators" - oct/2022 - link
Semina Journal: Exact and Technological Sciences
Digital scientific journal of the State University of Londrina - UEL
Publication: "Clustering techniques and innovation-based comparison in Londrina and Region companies" - may/2024 - link
SICITE 2022
XII Extension and Innovation Seminar & XXVII UTFPR Scientific and Technological Initiation Seminar
Presentation: "Machine Learning Techniques to Discover Knowledge About Innovation With a Focus on Companies in Londrina and the Region" - nov/2022 - link
ENEGEP 2023
XLIII National Meeting of Production Engineering
Publication: "Clustering Techniques for Traffic Accident Analysis in Belo Horizonte, Minas Gerais, in 2021" - Oct/2023 - link
ENEGEP 2022
XLII National Meeting of Production Engineering
Publicação: "Profile Analysis of Graduates by Clustering Techniques" - out/2022 - linkContact
Location:
São Paulo - SP, BR
E-mail:
diassmatheus@outlook.com
Phone:
+55 (11) 99668 5749