Guilherme Baltazar

Software Developer | Java | Spring | Java Batch State Department of Economy of Goiás – CAST I am the technical owner of the CPP – Protest Control by PAT project, directly responsible for automating critical workflows, implementing complex business rules, and handling large-scale batch processing, ensuring stability, traceability, and consistency in production environments within the public sector. Key responsibilities and contributions: Development and maintenance of backend systems in Java, using Spring, JPA/Hibernate, and Java Batch, applying clean code principles and scalable architecture best practices. Design, implementation, and monitoring of high-volume batch jobs, including failure analysis, execution tracking, and log monitoring via Kibana, ensuring reliable and predictable processing. Integration with Oracle Database, including data modeling, query optimization, and performance tuning for enterprise systems. Design and development of RESTful APIs to support system-to-system communication, ensuring data consistency, security, and efficiency. Active contribution to the modernization of legacy systems, proposing structural improvements, reducing operational risk, and evolving the codebase. Application of design patterns and clean architecture principles to improve maintainability, readability, and long-term sustainability of solutions. Participation in technical and business requirement analysis, translating institutional needs into robust and scalable technical solutions. Continuous performance monitoring and optimization, identifying bottlenecks and implementing improvements to meet quality and efficiency goals. Creation and maintenance of technical documentation for systems, processes, and workflows, ensuring knowledge sharing and standardization.

* Promoted to Systems Analyst, maintaining previous responsibilities while enhancing ongoing operations. * Continued implementation of the electronic point system, ensuring its efficiency and functionality for users. * Ongoing monitoring of the asset logistics system, making adjustments to optimize resource management for FUMEC. * Improvement of network configurations, ensuring connectivity and security of information within the institution. * Technical support for users, maintaining quality service and resolving hardware and software issues. * Implementation of enhancements in network security protocols, protecting sensitive data and institutional information. * Collaboration with the IT team to promote knowledge sharing and implementation of best practices in systems. * Analysis of user feedback on existing systems, identifying areas for improvements and innovations. * Creation of updated technical documentation for systems, facilitating information access and training for new staff. * Participation in projects to modernize IT infrastructure, contributing to a more efficient and collaborative environment.

* Outsourced to work at CEPROCAMP - FUMEC through Market Four Services, contributing to strategic IT projects. * Continued implementation of the asset logistics system, optimizing resource management for FUMEC. * Development and implementation of the electronic point system for public employees and interns to efficiently record their attendance. * Ongoing support in notebook maintenance, ensuring proper functioning of equipment for students and staff. * Technical assistance to students, resolving software and hardware-related issues, promoting an effective learning environment. * Collaboration with the CEPROCAMP team to identify and implement improvements to existing systems. * Creation of performance reports for the electronic point and logistics systems, aiding informed decision-making. * Monitoring and updating implemented systems, ensuring they meet the needs of users and the institution. * Training users on the effective use of the logistics and electronic point systems, promoting employee autonomy. * Documentation of technical support processes and procedures, facilitating information access for the team. * Participation in team meetings to discuss project progress and align strategic objectives. * Implementation of security measures in developed systems, ensuring the protection of sensitive data. * Assistance in integrating new features into the electronic point system, enhancing the functionality and efficiency of the system. * Analysis and resolution of technical issues reported by users, ensuring prompt and effective assistance. * Participation in drafting proposals for new projects and improvements in IT infrastructure. * Contribution to a collaborative work environment, promoting effective communication between IT teams and users.

* Responsible for the creation of a new website for CEPROCAMP, designing a user-friendly and intuitive interface. * Development of a system that captured 1,735 emails of interest in courses within one week, increasing the efficiency of the enrollment process. * Collaboration with the NIT group to implement features that improved the website's usability and student experience. * Provided technical support to students, troubleshooting hardware and software issues, ensuring continuity in academic activities. * Assisted teachers and administrative staff in resolving technical issues related to computers and equipment. * Performed preventive maintenance on IT equipment, ensuring all devices were fully operational. * Documented procedures and solutions for technical problems, contributing to the creation of an accessible knowledge base. * Collaborated in the setup of local networks, ensuring connectivity and efficient access to IT resources. * Created tutorials and guides to assist students and teachers in using digital platforms and learning tools. * Assisted in managing hardware and software inventory, ensuring availability and updates of equipment. * Participated in team meetings to discuss process improvements and technological innovations that benefit the institution. * Assisted in the setup of virtual learning environments, optimizing the educational experience for students.

The Universidade Paulista (UNIP) - Swift Campus is a higher education institution located in the state of São Paulo, Brazil. The Computer Science program at UNIP focuses on preparing professionals for careers in systems development, algorithms, artificial intelligence, databases, and other technological areas. The course emphasizes solving complex problems and creating innovative solutions for the IT market.