Marivaldo S.

Back-end and Systems Engineer

Sales
6/2/2015 - 5/2/2017

Developed proficiency in VBA, SQL, Python, Django, and C# to implement business intelligence solutions. Utilized these technologies for web scraping, lead generation, data analysis, and customer segmentation. Created internal portals to facilitate quick access and feedback on the solutions developed.

Control Desk Analyst
3/2/2013 - 10/2/2014

Developed operational reports for three client companies using Excel 2007/2010, leveraging VBA resources to automate spreadsheets and streamline processes. Demonstrated expertise in utilizing Excel's advanced features and programming capabilities to enhance efficiency and accuracy in reporting.

Java Developer
3/2/2021 - Present

Specializes in the development of microservices utilizing Java, Kotlin, and Spring Boot frameworks. Proficient in creating well-documented APIs using Swagger and OpenApi standards. Demonstrates expertise in testing and quality assurance through the use of JUnit, Mockito, SerenityBDD, and RestAssured. Skilled in implementing service-to-service communication with OpenFeign. Automates development workflows using Github Actions and manages infrastructure as code with TerraForm (IaC). Monitors and ensures system reliability employing observability tools like Grafana, Prometheus, and Splunk.

Leveraged AWS cloud platform extensively, with significant hands-on experience in services such as EC2, EKS, CodeCommit, CodeDeploy, CodePipeline, and occasionally SQS and SNS. Holds AWS Solutions Architect Associate and AWS Cloud Practitioner certifications, confirming a strong foundation in AWS services and architectures.

Adopts a Hexagonal architecture approach and applies various Design Patterns including Adapter, Strategy, and Abstract Factory, contributing to robust and maintainable system designs.

Tech Lead
6/2/2019 - 5/2/2020

Responsible for requirements gathering, analysis, software development, and process automation. Oversaw the entire development process and managed the team effectively. Worked extensively with deployments in an AWS environment utilizing services such as RDS, EC2, CodeCommit, S3, Elastic IP, Route 53, and IAM.

Systems Analysis and Information Systems (Completed in Jul/2018) at Federal Institute of São Paulo
2013 - 2018

Postgraduate in Software Engineering for Mobile Development (completed in May/2021) at UNINTER
2019 - 2021

Postgraduate in Software Architecture in Java (In Progress) at Vincit College (UNICIV)
2023 - 2024

Postgraduate in Computer Engineering (completed in Oct/2022) at UNINTER
2021 - 2022

Postgraduate in Cloud Computing (completed in May/2022) at Uncomplicate College
2021 - 2022

MBA in Information Security (completed in Mar/2022) at Uncomplicate College
2021 - 2022

Postgraduate in Data Science (In Progress) at Anhembi Morumbi
2022 - 2023

Postgraduate in Systems Analysis and Information Systems (completed in Nov/2021) at UNIMAIS
2021 - 2021

Postgraduate in Information Systems Projects (completed in Dec/2021) at Uncomplicate College
2021 - 2021

AWS Partner: Accreditation (Technical) at AWS
10/1/2023

AWS Certified Solutions Architect – Associate at AWS
7/1/2023

AWS Certified Cloud Practitioner at AWS
6/1/2023

CPA 20 at Anbima
2/1/2016