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Flavio Dantas

@flaviodantas

Message

I build reliable Java back-end platforms, integrations, and e-commerce systems at enterprise scale.

Brazil

Message

At Cognizant, I maintain a B2B pharmaceutical e-commerce platform serving the United States and Puerto Rico at 99% availability, delivering SAP Commerce upgrades and Java 17 SOAP/REST integrations. Previously at EPAM, I made Mercedes-Benz North America product search about 45% faster through Solr indexing and query optimization.

I've built enterprise back ends and integrations for Vivo, Renault, Santander, Sanofi, and other e-commerce and financial platforms. I lead teams of up to 10 developers and work hands-on with Java, Spring Boot, SAP Commerce, APIs, testing, Docker, CI/CD, databases, and production troubleshooting.

Experience

Work history, roles, and key accomplishments

Current

Senior Java Developer (SAP Commerce Cloud)

Current

Cognizant

Mar 2024 - Present (2 years 6 months)

Managed application services for a B2B pharmaceutical e-commerce platform, maintaining 99% availability and delivering platform upgrades. Developed Java 17 back-end code and SOAP/RESTful integrations, troubleshooting production issues with Dynatrace and OpenSearch.

Java 17 REST SOAP Junit MySQL HSQL Git Ant SAP Commerce Cloud Dynatrace OpenSearch

Senior Java Developer (SAP Commerce)

EPAM

Jun 2022 - Mar 2024 (1 year 9 months)

Developed and maintained a Java application on SAP Commerce 2011 for Mercedes-Benz North America, making product search 45% faster. Delivered hotfixes and built RESTful services in a Docker-based environment.

Java 8 REST Junit MySQL Docker Apache SOLR Postman SAP Commerce 2011

Java Developer (SAP Commerce)

Talos Digital / Perficient

May 2021 - May 2022 (1 year)

Migrated Java code and data from legacy Hybris to 2011, including tax calculation and file exports. Developed RESTful APIs for Spartacus front end and integrations with external systems.

Java 11 REST Junit MySQL Docker S3 Azure Spartacus TypeScript

Senior Java Developer & Team Lead

Vivo

Aug 2020 - Sep 2021 (1 year 1 month)

Led a team of 6 developers in a telecom e-commerce landscape, designing RESTful JSON APIs and integrating with SAP and payment gateways. Designed solutions for dealer identification and payment gateway modules.

Java Spring Boot REST SOAP Junit MySQL Oracle SAP Commerce

Senior Java Consultant

Freelance

Jul 2020 - Mar 2021 (8 months)

Built Java REST APIs for mobile apps and migrated e-commerce development in-house, setting up DevOps infrastructure.

Java Spring Boot OCC Junit MySQL SQL Server Git Hybris 6.5

Senior Java Developer & Technical Lead

BRQ

Jun 2019 - May 2020 (11 months)

Led a team of 10 developers for Renault e-commerce, delivering solutions across internal systems. Designed RESTful JSON APIs and proposed a Jenkins-based CI plan.

Java Spring Boot REST Junit JSP Angular NodeJS MySQL Oracle SAP Hana Jenkins Hybris 6.6

Java Developer

Cognizant

Jul 2018 - Jun 2019 (11 months)

Built Java back end for Sanofi applications, including a car fleet system on microservices architecture. Led support for a Hybris B2B store, improving file processing and customizing translators.

Java Spring Boot Spring Data Jersey Junit PostgreSQL MySQL Oracle AWS Jenkins Hybris 6.6

Java Developer

Accenture

May 2018 - Jul 2018 (2 months)

Laid foundation for a new Vivo webstore on Hybris 6.7, including custom Ant extensions, ImpEx data, and Java REST APIs for Node.js microservices.

Java Hybris Ant ImpEx REST NodeJS Web Logic

Java Developer

Leroy Merlin

Dec 2016 - May 2018 (1 year 5 months)

Built Spring MVC REST APIs for Brazil's first Assisted Service Module with real-time cart pricing and MongoDB. Developed a freight calculation module parsing positional CSV files.

Java Spring MVC REST MongoDB Junit Linux Docker

Java Programmer

Decision Group

Aug 2016 - Dec 2017 (1 year 4 months)

Rebuilt Santander's corporate Internet Banking from .NET to Java, developing REST integrations with DB2 and RabbitMQ using Spring MVC, Spring Data, and EJB.

Java Spring MVC Spring Data EJB REST DB2 RabbitMQ