Guilherme L.

Full-stack Product Engineer

Development Analyst
6/1/2023 - Present

Developed proficiency in PHP and Node.js, demonstrating significant expertise in server-side scripting and event-driven architecture. Received extensive hands-on experience with frameworks such as Laravel and Express.js, focusing on creating dynamic web applications and RESTful APIs. Enhanced database management skills with PostgreSQL and MongoDB, implementing complex queries and optimizing performance for large-scale applications. Utilized Redis for efficient caching and session management. Ensured code quality and collaborative development through version control systems like Git and further supported deployment and continuous integration with Docker and Jenkins. Played a critical role in integrating third-party APIs and services, validating robust back-end architectures.

Backend Developer
1/1/2022 - 4/1/2023

Developed proficiency in web back-end development and data analysis, utilizing tools and frameworks such as PHP, Python, and Django. Demonstrated strong skills in managing databases like MySQL and MongoDB, ensuring optimal performance and security. Engineered robust APIs and integrated third-party services to streamline data flow and enhance application functionality. Gained extensive experience with AWS services, including EC2 and S3, for scalable web application deployment. Mastered server management and load balancing techniques to maintain high availability and reliability. Employed version control systems such as Git for collaborative code maintenance and agile development practices. Conducted in-depth data analysis using tools like Pandas and NumPy, leading to insightful business intelligence reports and actionable recommendations. Utilized data visualization platforms such as Tableau and Matplotlib to present complex data findings in an accessible manner. Dedicated to continuous learning and staying up-to-date with the latest industry trends to ensure cutting-edge solutions.

Product Development Analyst
8/1/2020 - 1/1/2022

Contributed extensively to the development and maintenance of GPON OLT embedded systems, leveraging in-depth expertise in C and C++ for low-level programming. Utilized a robust understanding of RTOS principles to optimize performance and reliability. Engaged in comprehensive debugging and performance tuning using tools such as GDB and Valgrind. Employed protocol analyzers and network simulators to validate the implementation of GPON standards, ensuring seamless interoperability with various ONTs. Facilitated version control and collaborative development through Git and Jira for task management. Applied knowledge of hardware interfaces and embedded communication protocols including I2C, SPI, and UART to enhance system integrations. Played a crucial role in the implementation of TR-069 and OMCI standards for remote management and configuration of GPON devices.

Intern
8/1/2018 - 8/1/2020

Developed a GPON OLT embedded system. Gained expertise in embedded C and VxWorks RTOS with a strong focus on real-time systems. Utilized network protocols such as Ethernet, TCP/IP, VLAN, and PON standards. Demonstrated proficiency in developing and debugging embedded software using tools like GDB, JTAG, and Wireshark. Worked on system boot loaders, kernel configuration, and device drivers. Applied knowledge of networking components, including ONT interactions and OLT management. Ensured system reliability through rigorous integration and performance testing. Contributed to the enhancement of system security features and optimized resource management for improved system efficiency. Maintained code quality and consistency using Git and performed extensive reviews and testing to ensure compliance with industry standards.

Telecommunications at Federal Institute of Santa Catarina
2016 - 2022

Online Courses at Alura
11/1/2016