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Leonardo S. Email & Phone Number
Engenheiro de dados
at
Visa
LinkedIn matched
✓ Verified August 2026
3 data sources
Profile completeness 86%
Current company
Role
Engenheiro de dados
Location
Marília, São Paulo, Brazil
Company size
Who is Leonardo S.? Overview
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Quick answer
Leonardo S. is listed as Engenheiro de dados at Visa, a with 28536 employees, based in Marília, São Paulo, Brazil. AeroLeads shows a matched LinkedIn profile for Leonardo S..
Leonardo S. previously worked as Data Engineer at Banco Bmg and Data Engineer at Will Bank. Leonardo S. holds Master'S Degree, Computer Science from Universidade Estadual Paulista Júlio De Mesquita Filho.
Company email context
Email format at Visa
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Visa
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Profile bio
About Leonardo S.
I am a data engineer with experience in designing, implementing, and monitoring data pipelines. I work on extracting and collecting data from various sources, including APIs, databases, and external sources, using technologies like BeautifulSoup for web scraping. I implement data transformation and provisioning processes for timely analysis, utilizing AWS Glue, Spark, AWS Lambda, Athena, S3, and RDS. I use Docker, Kubernetes, and Terraform to automate the deployment cycle with CI/CD. I have experience in integrating asynchronous messaging using SQS and RabbitMQ, developing Python scripts and applications for data manipulation and analysis, managing NoSQL databases like DynamoDB and MongoDB, and configuring and monitoring cloud services using CloudWatch. Additionally, I am responsible for monitoring and observability of microservices using Datadog, ensuring real-time detection and propagation of alerts via Slack in cases of inconsistencies, errors, or system integrity failures. I am always eager to learn new technologies and methodologies and share my knowledge and experience with the team.I am also a master's student in Computer Science at UNESP, currently involved in a research project in the field of public security. My work involves dealing with unstructured textual data from various heterogeneous sources. I am performing tasks such as data scraping and fusion, exploratory analysis, data engineering, and applying machine learning techniques for valuable insights.
Current workplace
Leonardo S.'s current company
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Visa
6 roles
Leonardo S. work experience
A career timeline built from the work history available for this profile.
Data Engineer
CurrentData Engineer working in the DataLake.- Orchestration of pipelines using Apache Airflow in a cluster on AWS EKS.- Performed ingestion of Data Warehouses into the DataLake.- Participated in the development of a tool for ingestion of multiple and heterogeneous data sources.- Implementation of data ingestion pipelines using AWS EMR.- Massive data integration using PySpark and AWS EMR with query parallelism.- Data storage using S3 and availability using AWS Athena.- Implementation of Data Mesh architecture and distributed queries using Trino.
Mar 2024 - Present
Data Engineer
Data Engineer assigned to the Credit Engine:- Design and implementation of highly efficient data pipelines, ensuring timely data ingestion, processing, and availability for analysis. Utilizing AWS Glue, Spark/pyspark, S3, AWS Lambda, Athena, MongoDB, and RDS.- Extraction and collection of data from various sources, including APIs, databases, and external sources. Using technologies like BeautifulSoup for web scraping.- Implementation of monitoring and observability for microservices using Datadog, ensuring real-time detection and propagation of alerts via Slack in cases of inconsistencies, errors, or system integrity failures.- Development and automation of CI/CD pipelines using GitHub Actions and Docker and Kubernetes environments.- Use of Terraform for infrastructure provisioning and management as code.- Building and managing resilient distributed microservices clusters using AmazonMQ.- Collaboration with Data Scientists to identify analysis opportunities and develop analytical solutions to optimize credit processes and enhance customer experience.- Implementation and configuration of asynchronous message queues with Amazon SQS.- Development of Python scripts and applications for automation and integration.- Utilization of DynamoDB for efficient storage of structured data.
May 2021 - Feb 2024
Software Engineer
Stratelli
I developed a mobile application using PHP Laravel to create a robust API, applying DDD and TDD practices. I implemented CI/CD with GitHub Actions, hosting on AWS EC2, and a database on RDS. Additionally, I integrated a Socket.IO server for real-time chat and used AWS S3 for storing user profile images. The result was a timely delivery, with clean and tested code, following the best practices of the software engineering community, ensuring scalability and a smooth user experience.
May 2020 - Jun 2021
Software Engineer
Software engineer working directly on the development of APIs, integrations between e-commerce platforms, using and applying DDD, SOLID principles, and CI/CD processes tailored for microservices.
Dec 2020 - May 2021
Software Engineer
Software Engineer working with APIs, TDD, CI/CD workflows and communication with Mobile applications.
Aug 2019 - Mar 2020
Team & coworkers
Colleagues at Visa
Other employees you can reach at visa.com. View company contacts for 28536 employees →
NP
Nabarun Paira
Colleague at VisaBengaluru, Karnataka, India
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ZM
Zufang Mckinnon
Colleague at VisaMiami-Fort Lauderdale Area, United States
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SU
Saumya Upadhyay
Colleague at VisaMumbai, Maharashtra, India
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VM
Valeria Medina Hernández
Colleague at VisaToluca De Lerdo, México, Mexico
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VJ
Vesko Janjic
Colleague at VisaBanja Luka, Serb Republic, Bosnia And Herzegovina
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JW
Joseph Williams
Colleague at VisaAtlanta, Georgia, United States
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AK
Ashish Kumar
Colleague at VisaBengaluru, Karnataka, India
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WR
Wilfredo Ramirez
Colleague at VisaAustin, Texas, United States
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BP
Bob Potter
Colleague at VisaDenver Metropolitan Area, United States
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DB
Debasish Bhowmik
Colleague at VisaSingapore
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Nabarun Paira
Colleague at VisaBengaluru, Karnataka, India
View →
ZM
Zufang Mckinnon
Colleague at VisaMiami-Fort Lauderdale Area, United States
View →
SU
Saumya Upadhyay
Colleague at VisaMumbai, Maharashtra, India
View →
VM
Valeria Medina Hernández
Colleague at VisaToluca De Lerdo, México, Mexico
View →
VJ
Vesko Janjic
Colleague at VisaBanja Luka, Serb Republic, Bosnia And Herzegovina
View →
JW
Joseph Williams
Colleague at VisaAtlanta, Georgia, United States
View →
AK
Ashish Kumar
Colleague at VisaBengaluru, Karnataka, India
View →
WR
Wilfredo Ramirez
Colleague at VisaAustin, Texas, United States
View →
BP
Bob Potter
Colleague at VisaDenver Metropolitan Area, United States
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DB
Debasish Bhowmik
Colleague at VisaSingapore
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3 education records
Leonardo S. education
Master'S Degree, Computer Science
Bachelor'S Degree, Computer Science
Curso Técnico Integrado, Computer Science
FAQ
Frequently asked questions about Leonardo S.
Quick answers generated from the profile data available on this page.
What company does Leonardo S. work for?
Leonardo S. works for Visa.
What is Leonardo S.'s role at Visa?
Leonardo S. is listed as Engenheiro de dados at Visa.
Where is Leonardo S. based?
Leonardo S. is based in Marília, São Paulo, Brazil while working with Visa.
What companies has Leonardo S. worked for?
Leonardo S. has worked for Visa, Banco Bmg, Will Bank, Stratelli, and Eficaz Marketing E Tecnologia.
Who are Leonardo S.'s colleagues at Visa?
Leonardo S.'s colleagues at Visa include Nabarun Paira, Zufang Mckinnon, Saumya Upadhyay, Valeria Medina Hernández, and Vesko Janjic.
How can I contact Leonardo S.?
You can use AeroLeads to view verified contact signals for Leonardo S. at Visa, including work email, phone, and LinkedIn data when available.
What schools did Leonardo S. attend?
Leonardo S. holds Master'S Degree, Computer Science from Universidade Estadual Paulista Júlio De Mesquita Filho.
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