Rafael R.

Full-stack Product Engineer

Delphi Programmer
4/1/2019 - 11/1/2019

Developed proficiency in Delphi, utilizing the framework extensively for both desktop and enterprise software solutions. Enhanced applications through integration with various databases such as Microsoft SQL Server and Oracle, leveraging robust querying and efficient data management techniques. Implemented multi-tiered architectures using DataSnap, providing scalable and secure backend services. Applied skilled debugging, and troubleshooting techniques, leading to significant improvements in software reliability and performance. Expertly managed version control and collaborative development using Git. Employed Agile methodologies for project management, ensuring streamlined development cycles and prompt delivery of features. Developed skills in REST API construction and consumption, facilitating seamless data exchanges between systems. Additionally, committed to unit testing and automated testing practices, maintaining high standards of code quality and application robustness.

Delphi Programmer
12/1/2018 - 3/1/2019

Developed expertise in Delphi and Object Pascal, optimizing software performance and reliability. Engaged extensively with multi-tier architecture, including DataSnap and WebBroker, to create scalable enterprise applications. Proficient in database design and management, employing tools such as FireDAC, InterBase, and MySQL for seamless data transactions. Implemented RESTful APIs and demonstrated strong problem-solving skills. Utilized VCL and FMX frameworks to enhance user interface experiences. Managed source code and version control using tools like Git and Subversion, ensuring collaborative and efficient software development. Enhanced system functionality by integrating third-party libraries and components, maintaining high standards for software quality and performance.

Delphi Programmer
2/1/2016 - 11/1/2018

Developed advanced proficiency in Delphi for software development, debugging, and diagnostic procedures. Demonstrated expertise in database connectivity utilizing FireDAC, InterBase, and SQLite, ensuring efficient data handling and retrieval. Implemented RESTful services and web applications using Delphi's WebBroker and DataSnap technologies. Showcased skills in creating sophisticated graphical user interfaces (GUIs) by leveraging Delphi's VCL and FireMonkey frameworks. Employed version control systems like Git for collaborative development and effective code management. Enhanced application performance through meticulous code optimization and effective memory management techniques. Utilized tools such as RAD Studio for integrated development environment (IDE) work, and conducted thorough unit testing to maintain high code standards and reliability. Engaged in continuous integration and deployment (CI/CD) using Jenkins, ensuring streamlined development workflows and robust software delivery.

Delphi Programmer
9/1/2014 - 3/1/2015

Developed proficiency in Delphi programming language while handling complex software development projects. Demonstrated expertise in the use of Embarcadero RAD Studio for creating robust desktop and mobile applications. Integrated various databases seamlessly using SQL and demonstrated strong knowledge of database management systems, including Oracle and MySQL. Utilized third-party Delphi components such as FastReport and QuickReport to enhance reporting capabilities. Showcased skills in debugging and optimizing Delphi code for improved performance and reliability. Employed version control practices proficiently using Git for collaborative development and streamlined project management. Ensured code quality and consistency by implementing unit tests and engaging in thorough code reviews.

Delphi / Visual Studio Programmer
1/1/2010 - 9/1/2014

Developed proficiency in Delphi and Visual Studio, with extensive experience in creating, maintaining, and optimizing complex software systems. Demonstrated strong skills in programming languages such as C++, C#, and Delphi Pascal, leveraging these competencies to build robust desktop applications. Utilized SQL Server for database management, ensuring the efficient storage and retrieval of application data. Implemented and maintained version control using Git and SVN, contributing to collaborative code development and streamlined project workflows. Applied rigorous debugging and testing practices to ensure high-quality software outputs. Implemented UI/UX improvements using WPF within Visual Studio, enhancing user satisfaction and application usability.

Delphi Programmer
1/1/2009 - 12/1/2009

Developed proficiency in Delphi, focusing on creating and maintaining robust application software. Demonstrated extensive experience with Delphi IDE and VCL framework, ensuring the delivery of high-quality desktop applications. Implemented Object Pascal for efficient and clean code. Utilized FireDAC and ADO components for database access, working with SQL Server and InterBase. Showcased the ability to handle multiple projects simultaneously and deliver enhancements and bug fixes on time. Employed Agile methodologies to support a collaborative development environment. Leveraged version control systems such as Git and SVN for code management and version tracking. Contributed to the optimization of software performance, resulting in minimized resource consumption and enhanced user experiences. Engaged in regular code reviews and participated in peer programming sessions to foster knowledge sharing and collective improvement.

Delphi Programmer
1/1/2006 - 1/1/2008

Gained extensive experience in software development through Delphi programming. Utilized Delphi 7 and newer versions to design robust and efficient applications. Developed proficiency in object-oriented programming, enhancing software modularity and maintainability. Demonstrated expertise in creating and managing databases using SQL, with a strong focus on performance optimization and data integrity. Engaged in component-based development, creating reusable components for various application needs. Employed various testing frameworks and tools to ensure code quality and reliability. Collaborated effectively using version control systems such as SVN and Git, ensuring seamless integration and code collaboration among team members. Worked with various third-party libraries and frameworks to extend application functionality and improve development efficiency. Fostered an environment of continuous improvement through code reviews and collaborative problem-solving.

Linux Network Administrator
1/1/2000 - 1/1/2006

Demonstrated significant expertise as a Linux Network Administrator, with a strong focus on systems administration and network engineering. Advanced knowledge and proficiency in administering Linux-based systems, ensuring optimal performance, security, and reliability. Utilized tools such as Ansible for automation, Nagios for monitoring, and Docker for containerization to streamline operations and increase efficiency. Implemented robust network security measures using iptables and SELinux, enhancing system integrity and protecting against vulnerabilities.

Configured and maintained enterprise-level network services including DHCP, DNS, and NFS, ensuring seamless network operations and connectivity. Demonstrated strong competence in managing virtualization platforms such as VMware and KVM, significantly contributing to resource optimization and scalability. Employed scripting languages like Bash and Python for automation tasks and system management, reducing manual intervention and minimizing errors.

Extensive experience in troubleshooting complex network issues, leveraging Wireshark for packet analysis and resolution of network anomalies. Administered high-availability and disaster recovery solutions using tools such as DRBD and Heartbeat, ensuring business continuity and data protection. Utilized Zabbix and Grafana for performance monitoring and visualization, providing insights into system health and facilitating proactive maintenance.

Enhanced collaborative efforts through effective use of version control systems like Git, ensuring seamless codebase management and team coordination. Continuously updated skills and knowledge on the latest Linux distributions and network technologies, staying ahead in the field of network administration.

Software Engineering at Maringá University
2019 - 2023