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Location

Brazil

Rate

$23  / per hour

Years of experience

8+

About

I am an organized and dependable candidate with a positive attitude and a strong track record of managing multiple priorities effectively. With 8 years of experience in data analysis, I have developed expertise in building new sources of information and generating valuable insights for businesses. My professional journey has been marked by a commitment to problem-solving and adding value to the teams I work with. As a Senior Analytics Engineer, I have honed my skills in advanced analytics, SQL, Pentaho Data Integration, and tools like Power BI and Databricks. I am proficient in English and bilingual in Portuguese, which has further enabled me to excel in diverse environments. My recent role as a Senior Analytics Consultant at IT. Health involved leading technical execution, processing data using Python libraries, and managing ETL processes with SQL Server and Google Sheets. I have administered RLS access permissions in Power BI, analyzed data compliance logs with Microsoft Purview, and enhanced dashboards with DAX and SQL Server. Previous roles at Brida, Companhia das Letras, Funcional Health Tech, and TEx have equipped me with extensive experience in implementing BI departments, creating dashboards with tools like Qlik Sense and Tableau, and ensuring data quality and compliance. My educational background includes a Bachelor of Science in Database Technology and certifications in Data Science and Python, along with Databricks Lakehouse Fundamentals.

Tech Stack

Data Analysis, Data Management, Data Science, Databricks, Power BI, Python, Qilk Sense, Snowflake, SQL, SQL Server, Tableau

Experience

  • Managed the technical aspects of data processing and execution, ensuring the smooth operation of data integration and visualization tasks.
  • Processed JSON files and loaded data into production environments using Python libraries like Pandas, and managed ETL processes with SQL Server, utilizing various Python libraries for data manipulation and integration.
  • Handled RLS access permissions in Power BI Embedded, published improvements, and configured Power BI Gateway, ensuring secure and efficient data visualization.
  • Created and maintained management dashboards using tools like Qlik Sense, Tableau, and Power BI, providing valuable insights and facilitating data-driven decision-making.
  • Developed data models within Power BI, created visualizations considering Data Storytelling, and validated the accuracy and relevance of the displayed data.
  • Built ETL routines using tools like Pentaho, ensured data quality through testing workflows, and managed data ingestion into systems like Snowflake.
  • Led the full implementation of the BI department, understood business needs, created KPIs, and provided actionable insights to leadership through robust data analytics and reporting systems.

Employment history

Senior Analytics Engineer, IT.HEALTH March 2023 - Present

• Leading the technical and execution front
• Processing JSON files and loading data into the production environment using JSON and Pandas libraries in Python.
• ETL with SQL SERVER data and loading processed data into Google Sheets using Pandas, NumPy, OS, Pickle, Pyodbc, PygSheets, DateTime, and GoogleApiClient libraries.
• Administration of RLS access permissions in PowerBI Embedded, publishing improvements in the production workspace.
• Gathering usability, governance, risk, and data compliance logs via Microsoft Purview in the Azure environment, consuming this data via Power BI to define and understand which environments should be prioritized in scheduled updates.
• Studying needs and requirements for dashboard enhancement and creating measures with DAX according to business needs.
• Creating and modifying views in SQL SERVER, both for BI environment consumption and system consumption
• Maintenance related to the performance of views consumed by the system and tuning for cases where scripts are compromised in terms of speed at the time they are executed.
• Data modeling within Power BI for new dashboards, constructing visualization considering relevant Data Storytelling for the business, validating the displayed data.

Senior Data Analyst, Brida July 2022 - March 2023

• Implementation of marketing intelligence for the sales department using the tools and methods below:
• Responsible for building, maintaining, and generating management dashboards in Qlik Sense and migrating views from Qlik View to Sense, utilizing the Qlik View Converter to migrate variables and calculations.
• Utilizing Qlik’s customizable reporting module for sending AD HOC reports, considering P&L and cash flow information.
• Administration, governance of permissions, licenses, and connections within the QMC (Qlik Management Console).
• Responsible for sales force tracking metrics for both B2C and B2B.
• Creating and sending mass reports via N PRINTING.

Senior Data Analyst, Companhia das Letras October 2021 - July 2022

• Full implementation of the company’s BI department from scratch, understanding the business needs of each business unit, creating internal and external monitoring KPIs from the core sector to the point of sales and representatives using Power BI to provide insights to leadership.
• Handling ad-hoc requests when it comes to BI, such as calculation changes, aesthetics, and studying future improvements.
• Utilizing Pentaho for ETL and data ingestion into Snowflake, and Grafana for monitoring executions.
• Responsible for creating a data quality testing workflow to ensure that processes and information generated by the data are robust.
• Creation of facts and dimensions in a multidimensional model in Power BI, using both Star Schema and Snowflake Schema, creating calculations with DAX when necessary, and utilizing Power Query for data transformation and data treatment layer.

Senior Data Analyst, Funcional Health tech November 2020 - October 2021

• Worked with extracting insights, conducting study projections, and creating dashboards in Tableau for both internal and external clients.
• Conducted requirement gathering and needs assessment for the development of new data products.
• Built ETL routines (using Pentaho) to populate the company’s Data Warehouse.
• Prepared new leaders on the use and understanding of each visualization, including the fields utilized, seasonalities, update frequency, and calculations for KPIs.
• Addressed requests for enhancements or incidents related to the Health Analytics and Pharma Analytics products, making improvements to the database or modifying visualization rules, both in Tableau and in the data loading processes on the Tableau Server.

Data Analyst, TEx October 2019 - November 2020

• Continued involvement in the process of migrating systems from other insurers to the TELEPORT system, migrating and adapting data to our internal structure, evaluating customer databases to ensure data integrity and quality.
• Played an active role in the encryption changes proposed by SUSEP (Superintendence of Private Insurance) in the insurance market due to LGPD (Brazil’s General Data Protection Law) regulations.
• Validated tickets and executed scripts written by other analysts or developers in the production environment.
• Performed data loading and bulk updates in claims and endorsement databases.
• Updated FIPE codes for automotive insurance to ensure the multicalculation system captures the correct vehicle information.
• Utilized POWER BI for data visualization and programming in DAX to provide relevant information for the management of Customer Service and Support teams.
• Created Procedures and Views in the database.
• Generation of reports via database.
• Development and improvement of SQL scripts.
• Updating and resolving tickets through Zendesk

Security and Support Analyst, Certisign March 2019 - October 2019

• Support in maintenance, issuance, unlocking, and configuration related to digital certification.
• Issuance of reports, generation of certificates for exceptional cases, and case-by-case analysis for referral to the ombudsman.
• Configurations of Windows and Mac for A1 and A3 certifications.
• Creation of impact dossiers within digital protection systems.
• Identification of fraud or phishing attempts, as well as general technical support for certification in the Cloud.

Applecare consultant, Concentrix June 2018 - January 2019

• Identification of hardware and software errors on iPhone and Mac
platforms running the iOS 12.0 operating system, as well as MacOS
High Sierra and Mojav

IT Consultant, ML COMERCIO October 2017 - June 2018

• Responsible for managing the company’s network and system. Hardware and software maintenance.
• Mapping of networks and administration of ODBC connections. Configuration of the Kinghost Webmail Service.
• Installation of drivers on computers. TCP-IP configuration on servers.
• Administration and troubleshooting within the ERP-NC, BDE system.
• Responsible for opening and closing accounting periods, customer registration, opening of managerial accounts, tax linking rules, report generation, and system recalibration.

Education history

FAM 2024 Bachelor of Science - Database
Technology
Pentagono 2015 Associate Degree - Chemistry
Tom Potanski

“80+ clients have experienced exceptional results from our IT recruitment and software development services.”

Tom Potanski

Tom Potanski Founding Partner, DevsData

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"The agency led the hiring with a dedicated recruitment team. In the end, the client hired two senior technicians, one from Spain and another from Portugal, greatly enriching its engineering team."
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Twist Solutions, Ltd.
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"We consider the developers they recommended exceptionally strong from a technical perspective. I can recommend the services of DevsData to all tech companies in need of exceptional tech talent."
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"It was a pleasure to work with DevsData. They excelled at commitment, communication skills, and time and team management. They were extremely organized and efficient, and they tackled every part of the project (several projects) with the utmost care."
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Steven Haley
Managing Director
Kroll, Inc.
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"DevsData reached out to us, as we've been looking to grow our engineering team in Europe and Poland. Communicating efficiently and professionally, DevsData made a strong impression with their understanding of the recruitment challenges we were facing."
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Karim Butt
Cofounder & CTO
GlossGenius, Inc.
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5.0
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"I really appreciate their ability to adapt to our preferred ways of working, agility and successful delivery."
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Tom McGovern
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Idealab, Inc.
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"They have really proved their worth and have shown me that my company’s money is really well spent."
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Matthew Wiklo
CEO
Epinote
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"I've been working on several IT projects with DevsData for more than five years. There were many software projects they completed for us."
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Senior IT Manager
Verus Analytics LLC
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"From beginning to end, the cooperation was smooth and contact with DevsData representatives was very easy."
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Patrick Lobocki
CEO
Roesier, Inc.
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"From beginning to end, my experience with DevsData was only positive."
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Daniel Goebel
CEO
CoCoHub, Ltd.
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"Quality control is rare in this line of business, I think this is the secret sauce of their exceptional quality."
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Paul Polewicz
CEO
Reef Technologies
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"This rapid pace and immaculate organization are what stood out to me most about DevsData."
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Joanna Szymanski
Owner & CEO
Xino Sports LLC
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"We at Flowr Agency are particularly pleased with the outcomes, notably the superior code quality, speed, and communication. It confidently endorses the agency's services to other marketing firms."
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Flowr Agency
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"We felt good about our collaboration. They were good people to work with, full of energy, creative, and proactive."
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"We also recommended DevsData to my business connections as they did a truly fantastic job."
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Matthew Lenicki
CEO
WebCrafters, Inc.
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"For DevsData to find four amazing developers so fast - that cannot be just luck."
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Adam Zaczek
Founder
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"Our cooperation has been very efficient, and I love it."
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Adam Janczewski
Founder & CEO
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"Tom and his team showed great dedication to us as client and allowed wellbee to launch an Alpha stage of our online therapy product in under 1 month from absolute scratch. I need to congratulate them on the very good UX and UI design and good communication skills of the whole team."
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Wellbee
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"Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us - we eventually signed over 19 engineers from DevsData. I'm extremely satisfied with this recruitment process."
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Program Manager
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I agree and accept that DevsData LLC will improve the user experience by collecting, analyzing, and cataloging information about the internet addresses my devices have connected to, as well as details about my devices’ specifications and software versions, and by making automated decisions (not involving sensitive data). This agreement remains in effect for the legally binding period or until either party withdraws. Withdrawal will result in the removal of the user’s data. For further details, please see our privacy policy.

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“Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us.”

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