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Crinnger Fagundes
@crinngerfagundes
Experienced Senior Java Developer with 18+ years in software development.
What I'm looking for
I'm Crinnger Fagundes de Oliveira, a senior software developer with over 18 years of experience across various platforms including Java, AWS, and Spring. I led the development of a significant driver's license control system in Amazonas, enhancing public services and revenue. Passionate about technology, I constantly explore new trends to deliver innovative solutions. My career spans significant projects like ID.GOV.PT and fintech initiatives, demonstrating my commitment to excellence and continuous learning.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Zartis
Nov 2024 - Present (7 months)
Assigned to the SMS client, I contribute to the development and maintenance of a system for processing electronic energy meter readings. This project involves complex business rules and extensively utilizes AWS services, including Lambda, SNS, and SQS, for robust and scalable solutions.
Senior Software Engineer
kwan
Jan 2022 - Oct 2024 (2 years 9 months)
I part of the migration from C# application to Java microservices, enhancing the SSO system for Portugal's government portals. I mastered Quarkus for swift deployments, integrated the SAML standard for secure authentication, advanced in Java Cryptography to protect data, and utilized Kafka for efficient message flow, overcoming multiple technical challenges to ensure project success.
Senior Java Backend
Invillia
Mar 2022 - Sep 2024 (2 years 6 months)
At the AME fintech project, I managed sales reconciliation, enhancing payment efficiency with AWS and Terraform. I explored Scala, utilized Databricks, and implemented a pivotal credit card reconciliation system, boosting payment accuracy. Our team also optimized AWS costs without affecting user experience, showcasing our commitment to efficient, cost-effective solutions.
Senior Software Engineer
Prodam
Jun 2005 - Jun 2024 (19 years)
Over 17 years at prodam. I improved services through innovative projects. I streamlined tax payments, integrated PIX for fee payments, and incorporated the RENAINF system to increase revenue. Enabled remote vehicle sales reporting and integrated financial services, enhancing citizen engagement and operational efficiency.
Education
Degrees, certifications, and relevant coursework
Umaia
Master’s Degree , Computer Science
2024 - 2026
Uninter
Associate of science, computer programming
2018 - 2020
Tech stack
Software and tools used professionally
Postman
OpenAPI Specification
Amazon CloudWatch
Amazon S3
GitHub
GitLab
GitBucket
SonarQube
Spring Cloud
AWS CodePipeline
GitLab CI
Flyway
Liquibase
Spring Data
MySQL
PostgreSQL
MongoDB
Oracle
Spring Boot
Spring
Spring Framework
Databricks
Slack
Redis
Terraform
IntelliJ IDEA
Jira
Java 8
Quarkus
Java
Kotlin
XML
Kafka
Amazon SQS
Amazon DynamoDB
Hibernate
Linux
Windows
Datadog
JSON API
Spring Security
AWS Lambda
JUnit
Mockito
Git
Docker
Amazon Elastic Container Service
Amazon Web Services (AWS)
SQL
SoapUI
Amazon ECR
Availability
Location
Salary expectations
Job categories
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