Cassyo J.

Full-stack Product Engineer

Senior Software Engineer
10/1/2021 - Present

Developed and implemented new features for .NET applications, ensuring robust and scalable solutions for numerous clients. Acquired expertise in .NET framework and demonstrated the ability to enhance application performance and usability. Collaborated effectively with cross-functional teams to deliver high-quality software solutions tailored to client requirements.

Senior Software Architect & Developer
7/1/2021 - 10/1/2021

Developed advanced proficiency in .Net Core 5, focusing extensively on the creation and testing of APIs. Demonstrated expertise in designing scalable, high-performance APIs, effectively ensuring their robustness and reliability. Utilized tools such as Swagger for API documentation and Postman for thorough testing procedures. Showcased strong capabilities in integrating third-party services and authentications, leveraging OAuth protocols. Maintained high standards of code quality through consistent use of version control systems like Git, and adhered to best practices in Continuous Integration/Continuous Deployment (CI/CD) pipelines using Jenkins. Enhanced system performance and reliability with proficient use of Docker for containerization, and Kubernetes for orchestration.

Senior Software Engineer & Developer
2/1/2020 - 7/1/2021

Developed extensive expertise in .Net Core 3.1, focusing on creating robust APIs and integration solutions. Demonstrated proficiency in designing and implementing scalable systems. Leveraged knowledge of enterprise-level frameworks to deliver high-quality code. Gained experience in backend development, emphasizing the creation of seamless and efficient integration solutions. Utilized industry-standard tools and methodologies to ensure optimal performance and maintainability of software. Contributed significantly to collaborative projects, showcasing ability to work in dynamic, team-oriented environments.

Senior Software Developer
2/1/2019 - 2/1/2020

Developed proficiency in .Net and .Net Core for creating and maintaining Web APIs consumed by Angular and other web applications. Demonstrated expertise in organizing and maintaining integration software and reusable middlewares across various applications. Gained extensive experience in maintaining legacy software built on the .Net 4.7 framework. Showcased skills in designing and maintaining new software architectures. Conducted maintenance on stored procedures and SQL Server databases.

C# Software Developer
3/1/2018 - 2/1/2019

Developed proficiency in .Net 4.7, .Net Core, and Angular. Responsible for the creation and maintenance of .Net and .Net Core Web APIs using Entity Framework ORM. Led the development of integration software to synchronize vehicle stock with over six marketplaces. Designed and maintained new Angular applications to consume APIs. Managed legacy integration software, ensuring continued functionality and improvements. Conducted maintenance on .Net 4.7 framework legacy applications and developed new software architectures. Maintained stored procedures and managed the SQL Server database.

Systems Analyst
4/1/2017 - 3/1/2018

Specialized in analyzing and creating software architecture and comprehensive documentation for developers. Conducted thorough analysis of legacy code and devised optimal solutions tailored to specific requirements, collaborating on projects for municipal government entities. Handled software integrations, development of new functionalities, and database model architecture. Provided support in .Net Core and C#.Net 4.7 development when necessary to assist the development team. Proficient in technical tools and frameworks essential for robust software architecture and seamless integration.

C# Developer
8/1/2014 - 7/1/2015

Developed and maintained stored procedures and C#.Net MVC legacy software for a bank agency. Demonstrated advanced proficiency in C# and .NET MVC framework. Extensively worked with SQL Server for database management and optimization. Applied strong problem-solving skills to ensure the performance and reliability of legacy systems. Ensured efficient code maintenance and version control, optimizing stored procedures for improved system performance and reliability. Developed a deep understanding of domain-specific banking software requirements and regulatory compliance.

C# Developer
3/1/2013 - 3/1/2014

Acquired expertise in developing software using C#.Net MVC, WPF, and Entity Framework, complemented by hands-on experience with Windows CE. Specialized in creating and maintaining SQL Server databases. Tackled the challenge of developing an application to verify and organize containers of vehicle parts from the production field, ensuring that the vehicle assembly line received the correct parts in the right order and facilitated the reorganization of containers when a part was damaged. Enhanced skills in query and code optimization, particularly under the constraints of limited memory and storage inherent in Windows CE applications. Successfully deployed the application for use on assembly lines in Brazil, China, and Mexico, demonstrating practical understanding of international deployment and operational logistics.

C# Developer
9/1/2012 - 3/1/2013

Maintained and enhanced stored procedures and C#.Net MVC legacy software for a financial institution, ensuring optimal performance and reliability. Gained proficiency in C# and ASP.NET MVC, contributing to the stability of critical banking systems. Deepened expertise in SQL Server for robust data management and optimized database queries. Utilized various .NET frameworks and tools to streamline development processes and ensure compliance with industry standards. Implemented best practices for code maintenance and version control, significantly improving system efficiency and user experience.

Computer Technology/Computer Systems Technology at Federal University of Technology - Paraná
2009 - 2012

Information Technology at Positive University
2015 - 2016