Jefferson Guerra

Experience

• 

  Universidade Federal do Rio Grande do Norte

  Mar 2019 - Dec 2019

  Bolsista de Monitoria

  Monitor da disciplina Matemática Elementar, disciplina introdutória do curso de Bacharelado em Tecnologia da Informação da Universidade Federal do Rio Grande do Norte (UFRN)

• 

  Valeu App

  Feb 2021 - May 2022

  Full Stack Developer

  - Participated on architecting a RESTful API in Django for managing a "Vaquejada". Including real-time communication with Django channels and multiple user roles that communicates with each other- Developed the main event algorithm for consolidating informations between event states and validate actions from the judges of the event. Used lists, dictionary and built-in functions and aggregators.- Developed the interface for the mobile app used by "Vaqueiros" (cowboys).- Gained familiarity with relationa databases sush as postgresqlOn that project I had the opportunity to develop a real world app, building a REST API along side a reactive frontend. Show less

• 

  UFRN

  Jun 2021 - Mar 2022

  Web Developer

  Description of activitiesDevelop, maintain and test a notification platform and epidemiological management in the state of Rio Grande do Norte with SESAP-RN (Secretary of Public Health). The platform consists of the collection, cleaning, treatment, merge, visualization and storage of data collected and provided by SESAP-RN.Technologies used* Python* Django* HTML* CSS* Pandas* NumpyDatabase* PostgreSQLMethodologies* GitFlow* Agile methodology Show less

• 

  Morphus Segurança da Informação

  Jun 2022 - Aug 2023

  Junior Software Developer I

  - Experienced a fast paced agile enviroment- Developed new module for the applications from scratch, applied best practices and authorization features- Coded automation tool for SOC, SIEM squads to automate flow of response and detection of security incidents- Helped scale a single module SOAR application to have multi modules and be the go to application from internal squads to deal with security incident- Learned to collaborate in a fast-paced environment and deliver high value software on a goal oriented teamOn that opportunity I gather important soft skills and was able to extend my knowlodge on my stack technologies, understand how the real world scenario connects with the application, deal with deadlines and how to transform clients needs in requirements. Show less

• 

  Accenture Brasil

  Sept 2023 - now

  Senior Analyst

  - Analyzed system endpoints to identify performance bottlenecks, leading to targeted optimizations that improved average response time by 30% and reduced database queries by 44%.- Developed and migrated an internal automation tool from JavaScript to TypeScript, adding custom business logic, updating React components with new actions and styling, implementing new features, and fixing state management issues — resulting in more than 65% reduction in incident response time.- Led integration between ITSM and Incident Management systems with the work hour allocation tool, enabling real-time tracking of task efforts across contracts and improving visibility into operational costs.- Implemented incident response metrics and SLA calculations within ITSM systems, feeding structured data to the BI team to build dashboards that enhanced service performance monitoring.- Designed and implemented a core ITSM feature, achieving 80%+ test coverage by writing unit tests with unittest, which improved system reliability.- Experienced in Agile/Scrum environments, effectively collaborating with cross-functional teams to deliver iterative solutions through sprint planning, daily standups, and retrospectives. Show less