Dennie R.Back-end and Systems Engineer
Skills
Thankful for Brazilian citizenship by birth and North American nationality through paternal lineage, contributions are driven by a commitment to building robust partnership cycles with a foundation of respect and professional ethics. The focus is on achieving or surpassing quality and productivity goals within the framework of existing norms and policies. The approach emphasizes motivation, ethics, and mutual commitment, ensuring that the results resonate positively with both internal and external stakeholders.
Senior Software Engineer
11/1/2022 - Present
Adapted an open-source project (NOPCommerce) for a large pharmaceutical industry in Brazil, demonstrating advanced proficiency in C# .NET and extensive use of PostgreSQL for reliable database management. Integrated and maintained REST APIs, ensuring smooth communication between systems. Utilized Bitbucket for efficient version control and collaborative development, while employing Jira for meticulous project tracking and issue resolution. Developed expertise in Blazor for building interactive web interfaces and leveraged AWS for scalable cloud infrastructure and deployment.Tech Lead
8/1/2021 - 11/1/2022
Developed proficiency in JavaScript frameworks such as React.js and Angular. Gained expertise in back-end technologies including Node.js and Express. Demonstrated advanced skills in relational and non-relational databases such as MySQL and MongoDB. Utilized Docker for containerization, facilitating seamless deployment processes. Leveraged AWS services including EC2, S3, and Lambda to build scalable and reliable applications. Implemented CI/CD pipelines using Jenkins and GitLab, emphasizing efficient code deployment practices. Enhanced team collaboration and version control through extensive use of Git. Applied Agile methodologies to manage project workflows, ensuring timely delivery and iterative improvement. Adapted Unit testing strategies using Jest and Mocha, contributing to maintainable and high-quality codebases. Acquired familiarity with RESTful API design and development, enhancing system interoperability and integration.System Analyst
8/1/2013 - 7/1/2021
Currently maintaining applications for a user audience with direct contact with end customers. Supported Point of Sale application using the Conecto Emporium POS System and developed an invoice sending solution with SOVOS - NFCe. Created internal solutions for integrating various satellite applications across the company, utilizing technologies such as C# .NET, Python, Oracle, MariaDB, PostgreSQL, SQLServer, Docker, and GITLAB.Project Leader
7/1/2010 - 8/1/2013
Developed and optimized multiple systems in the retail sector, demonstrating proficiency in technologies such as Java, Spring Boot, and Hibernate. Expertise in front-end frameworks like Angular and React enhanced the user interface and experience. Substantial experience with SQL and NoSQL databases, including MySQL, PostgreSQL, and MongoDB, facilitated efficient data management and retrieval. Utilized Docker and Kubernetes for containerization and orchestration, ensuring seamless deployment and scalability of applications. Implementation of RESTful APIs and microservices architecture enabled robust and scalable system integrations. Employed Jenkins and GitLab CI/CD pipelines for continuous integration and delivery, improving code quality and deployment speed. Practiced Agile methodologies, participating in sprint planning and daily stand-ups to foster collaborative development.System programmer
7/1/2008 - 7/1/2010
Developed proficiency in Java, specifically in JSP for web systems. Gained extensive experience working with PostgreSQL databases, ensuring efficient and reliable data management. Utilized development tools and frameworks such as Apache Tomcat for server management and Eclipse IDE for coding. Enhanced skills in front-end technologies including HTML, CSS, and JavaScript to build dynamic and responsive user interfaces. Employed best practices in software development, including version control through Git for collaborative code maintenance. Demonstrated ability to troubleshoot and optimize applications, improving performance and user experience. Leveraged knowledge in SQL for querying and database optimization to support application functionality. Showcased excellent problem-solving abilities by addressing complex technical issues and implementing effective solutions.System programmer
1/1/2005 - 12/1/2008
Developed technical expertise in Delphi5, engaging deeply with legacy system development and maintenance. Managed and updated extensive codebases to enhance system performance and stability. Leveraged a strong understanding of database interactions to ensure seamless integration and functioning of backend systems. Utilized tools and frameworks adapted to legacy systems to troubleshoot and resolve complex bugs and issues. Demonstrated ability to reverse-engineer existing code for optimizing existing functionalities and implementing new features. Focused on maintaining and improving outdated systems while ensuring minimal disruption to end-users.
Internet Systems at FANESE
2006 - 2008Information Systems at FANESE
2009 - 2010
Mocks in C#: Integration Testing with xUnit and Moq at Alura
9/1/2022Tests in .NET: Integrating the Application with a Database at Alura
4/1/2022Starting with ASP.NET Core at desenvolvedor.io
4/1/2022.NET 6: First Look at LinkedIn
4/1/2022Tests in .NET: Fundamentals of Software Testing at Alura
3/1/2022SOLID with C#: Principles of Object-Oriented Programming at Alura
3/1/2022Microsoft Certified: Azure Fundamentals at Microsoft
11/1/2021Certification Training AZ-900: Microsoft Azure Fundamentals at Alura
10/1/2021Performance Web II: Critical Path, HTTP/2 and Resource Hints at Alura
6/1/2021Performance Web I: Optimizing the Front-End at Alura
6/1/2021Introduction to Django 3: Models, Routes, and Views at Alura
6/1/2021HTTP: Understanding the Web Behind the Scenes at Alura
6/1/2021Python Training at Alura
6/1/2021How to Overcome Procrastination at LinkedIn
3/1/2021DEVOPS ESSENTIALS PROFESSIONAL CERTIFICATE at CertiProf®
1/1/2019Developers Sergipe Summit 2018 at Sympla
12/1/2018ASP.NET C# with MVC5 at Udemy
11/1/2018Complete Web Developer Course 2018 + 10 Projects at Udemy
6/1/2018First Steps in Linux - Concepts and Main Commands at Udemy
5/1/2018
Dennie is available for hire
Meet Dennie R.
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