Mathaus Vila Nova

Mathaus Vila Nova

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Pernambuco, Brazil

Contact Mathaus regarding: 
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Full-time jobs
Starting at USD4.3k/month
Flexible work
Starting at USD27/hour
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Résumé


Jobs verified_user 0% verified
  • GFT Technologies
    Data Engineer
    GFT Technologies
    Aug 2024 - Current (2 years)
    Responsible for supporting and implementing data engineering processes in a data warehouse (DWH) project. - Support and implement data engineering processes for a DWH project. - Enhance ELT processes by eliminating redundancies and streamlining pipelines using ADF. - Facilitate new data integration by orchestrating and configuring pipelines in ADF. - Monitor and resolve issues across development environments including DEV, UAT, and PROD.
  • Outlier
    SQL Expert
    Outlier
    May 2024 - Aug 2024 (4 months)
    - Worked on more than 7 different projects to improve generative Artificial Intelligence (AI) model accuracy and functionality; - Dedicated 150+ hours to training and reviewing SQL prompts; - Contributed to model optimization through Supervised Fine-Tuning (SFT), Reinforcement Learning (RLHF), Code Evaluation (SxS), and more.
  • Data Meaning
    Power BI Developer
    Data Meaning
    Apr 2024 - May 2024 (2 months)
    - Rebuilt a 7-page Power BI dashboard for TSC's Loss Prevention team with custom tooltips, drill-through filters, RLS, and dynamic DAX measures. - Optimized over 15 data model queries, removing duplicates and fixing relationships. - Designed 17-page frames using Figma.
  • V
    Business Intelligence & Analytics | Internal Audit @ JUMIA
    Velv
    Jun 2023 - Mar 2024 (10 months)
    - Performed financial and operational audits by analyzing and reconciling DWH data. - Investigated numerical discrepancies between the company’s process flow and source systems. - Contributed to the BI initiatives by starting to structure a data lake with PDI and Postgres for PBI dashboards.
  • V
    Business Analyst | Central BI @ JUMIA
    Velv
    Jun 2022 - Jun 2023 (1 year 1 month)
    - Enabled new data integration by translating business requirements for the Data Engineering team. - Sustained Finance & Operations Power BI reports. - Supported financial KPI data exports for FP&A and investor reporting.
  • accenture
    Business Intelligence Team Lead @ Natura & Co
    accenture
    Jan 2022 - Jun 2022 (6 months)
    - Led a 10-person team in data engineering to establish an initial DWH environment in MS SQL Server. - Supported data integration by fetching source systems extractions in AWS S3, using PDI and PySpark. - Structured over 50 tables with raw data storage, post-processing, stored procedures, and view creation.
  • accenture
    Business Intelligence Consultant @ Algar Telecom
    accenture
    Jun 2021 - Jan 2022 (8 months)
    - Reduced customers' printed invoices through data analysis achieving over R$1 million in savings. - Sustained an ETL solution for storing client CRM data across monthly invoicing cycles. - Developed and maintained two Power BI reports to support client demands and project indicators.
  • Dell Technologies
    Analyst of Business Intelligence
    Dell Technologies
    Oct 2019 - Jun 2021 (1 year 9 months)
    Supported the Global Supplier Quality Engineering team's digital transformation initiatives through advanced data solutions and reporting. - Developed and maintained ETL solutions using SSIS and MS SQL Server. - Created and maintained Power BI report to monitor vendor part performance. - Contributed to a web development application for monitoring vendor’s part screening rates.
  • Dell Technologies
    New Product Introduction Internship
    Dell Technologies
    Jun 2017 - Jun 2019 (2 years 1 month)
    As a Pilot Coordinator, I supported Engineers in new product enablement and maintenance. Through this 2-year internship, I developed my management, leadership, and team engagement skills, improving overall performance during product releases and updates. - Interaction with local manufacturing teams - Orders management - Quarterly teams' results presentation - Data and web development support
Education verified_user 0% verified
  • Udacity
    Nanodegree, SQL Nanodegree Program
    Udacity
    Nov 2020 - Jan 2021 (3 months)
    - Improved SQL skills knowledge such as window functions, subqueries, and advanced joins; - Analyzed data to get insights for a deforestation scenario analysis with advanced queries; - Optimized a poor data schema and normalized it from a social media news aggregator site;
  • Pontifícia Universidade Católica de Campinas
    Bachelor's degree, Electrical and Electronics Engineering
    Pontifícia Universidade Católica de Campinas
    Feb 2014 - Dec 2019 (5 years 11 months)
Projects (professional or personal) verified_user 0% verified
  • U
    Udiddit, A Social News Aggregator
    Jan 2021
    - Analyzed data schema and identified necessary changes; - Created a completely new schema to better attend to the project requirements (primary and foreign key relationships, constraints); - Tables are normalized and the data were successfully migrated from the older to the new tables.
  • D
    Deforestation Exploration
    Dec 2020
    - Deeper analysis using advanced queries (aggregations, joins, withs); - Insightful information for the final report; - Grown a lot consolidating knowledge with the SQL language as well as delivering great data analysis.