Cláudio J.

Full-stack Product Engineer

Senior Ruby on Rails Developer
5/1/2022 - 3/1/2023

Developed proficient skills in PHP, Node.js, and Vue.js through the creation of Transaction Management and Credit Card Control APIs. Demonstrated expertise in API development, particularly for managing carrier invoices, ensuring seamless and secure financial transactions. Gained extensive experience with RESTful APIs, enhancing system interoperability and scalability. Employed robust authentication and authorization mechanisms to safeguard sensitive information. Showcased strong abilities in database management, utilizing PostgreSQL and MongoDB to store and query transactional data efficiently. Maintained collaborative code integrity using SVN and Git, ensuring smooth version control and team coordination.

Software Engineer and Database Specialist
1/2/2018 - Present

Acquired advanced expertise in configuring and managing AWS cloud infrastructure, focusing on EC2, S3, Lambda, and RDS. Leveraged Python and Node.js for backend development, implementing microservices architecture with Docker and Kubernetes for containerization and orchestration. Developed and optimized applications using React.js and Angular for frontend solutions. Proficient in continuous integration and continuous deployment (CI/CD) pipelines utilizing Jenkins and GitLab CI. Utilized Terraform for infrastructure as code (IaC) and Ansible for configuration management. Demonstrated strong analytical skills in SQL and NoSQL databases, including PostgreSQL and MongoDB. Ensured system security and compliance through robust monitoring and alerting frameworks with Prometheus and Grafana. Collaboratively maintained code quality and project management using Jira and Bitbucket.

Systems Analyst
1/2/2016 - 1/2/2018

Served as a System Analyst and Fullstack Developer, acquiring proficiency in ASP.NET Core, PHP, and Angular. Implemented front-end interfaces using Bootstrap and jQuery. Utilized MySQL for database management and Git for version control. Developed robust backend solutions with .NET Core, and improved system performance and reliability. Demonstrated expertise in managing RESTful APIs and deploying applications in cloud environments. Enhanced project outcomes by leveraging Agile methodologies and contributing to code reviews.

Mid-Level Systems Analyst
11/1/2012 - 5/1/2018

Specialized in Java development with extensive use of Hibernate and the Grails framework. Gained substantial experience in building and maintaining scalable applications using the Spring framework. Developed proficiency in creating RESTful APIs and integrating them into enterprise-level systems. Demonstrated expertise in working with SQL databases such as MySQL and PostgreSQL, as well as NoSQL databases like MongoDB. Utilized tools such as Maven and Gradle for project management and build automation. Leveraged Git for version control and ensured seamless collaboration within development teams. Showcased strong debugging and problem-solving skills using tools like JUnit and Mockito for unit testing. Employed continuous integration and deployment strategies using Jenkins and Docker to ensure efficient and reliable software delivery pipelines.

CEO and Fullstack Developer
1/2/2003 - Present

Contributed to the development of enterprise and custom software in the Maceió region of Brazil, enhancing technical expertise and expanding a diverse skill set. Developed proficiency in PHP and utilized frameworks such as Doctrine and Silex for backend development. Gained extensive experience with front-end technologies including Ext JS 4.2, Node.js, and Vue.js to create responsive user interfaces. Demonstrated adeptness in database management through the use of PostgreSQL and MongoDB. Ensured collaborative software development and code maintenance by employing version control systems such as SVN and Git.

Programmer
1/2/2002 - 1/2/2003

Spearheaded the development of a comprehensive data warehouse system utilizing Delphi, resulting in streamlined data processing and improved query performance. Demonstrated a high level of proficiency in SQL for querying and database management. Employed advanced ETL (Extract, Transform, Load) processes to ensure efficient data integration and transformation. Leveraged Delphi’s robust framework to create a scalable and maintainable codebase, ensuring long-term system reliability and ease of updates. Facilitated seamless communication between the data warehouse and various business intelligence tools, enhancing data accessibility for analytics. Developed scripts and automated processes to optimize data loading and transformation tasks, significantly reducing manual intervention and operational time. Implemented rigorous testing protocols and debugging practices to ensure data integrity and system stability.

Delphi Programmer
1/2/2002 - 1/2/2002

Led the development of a comprehensive household registration system. Demonstrated technical expertise in PHP, leveraging frameworks such as Doctrine and Silex for backend development. Utilized Ext JS 4.2 for frontend interface creation, enhancing user experience and system responsiveness. Integrated Node.js and Vue.js to enable efficient real-time data processing and interface updates. Managed extensive database operations using PostgreSQL and MongoDB to ensure robust data storage and retrieval. Employed collaborative version control practices with SVN and Git to maintain code integrity and streamline teamwork across the project lifecycle.

Head of Data Processing Center
1/2/2000 - 1/2/2001

Developed comprehensive expertise in Delphi, focusing on enhancing system efficiencies and performance. Utilized SQL extensively to manage and optimize relational databases, ensuring high reliability and availability. Led the development of robust Windows applications, emphasizing user-friendly interfaces and streamlined workflows. Implemented and maintained complex business logic and data processing algorithms, ensuring accuracy and robustness. Conducted in-depth debugging and performance tuning to identify and resolve critical issues swiftly. Demonstrated strong skills in software versioning and team collaboration using SVN and Git, ensuring seamless code integration and management.

Psychology at Cesmac University Center
1993 - 1998

Systems Analysis at Cesmac University Center
2009 - 2013

Databases at Cesmac University Center
2014 - 2016

Domain Driven Design Module - FullCycle 3.0 Course at Full Cycle LTDA
3/1/2022

SOLID Module Express - FullCycle 3.0 Course at Full Cycle LTDA
3/1/2022

System Communication Module - FullCycle Course 3.0 at Full Cycle LTDA
3/1/2022

Software Architecture Fundamentals Module - FullCycle 3.0 Course at Full Cycle LTDA
3/1/2022

Docker Module - FullCycle 3.0 Course at Full Cycle LTDA
2/1/2022

Introduction to Data Science 2.0 at Data Science Academy
10/1/2019

Big Data Fundamentals 2.0 at Data Science Academy
9/1/2019