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I am a highly experienced software engineer specializing in frontend development with over 20 years in producing scalable, modular React applications and extensive skills across the React ecosystem and TypeScript. My recent roles at CGI and Omnissas have involved modernizing complex web applications, implementing modular architectures with tools like Turborepo, and creating unified design systems to improve code reuse and user experience. Beyond front-end expertise, I have actively developed strong proficiency in Node.js, particularly for e-commerce solutions, integrating third-party applications and Commerce APIs to build high-performance platforms. I also possess full-stack experience and a commitment to CI/CD best practices, thriving in collaborative cross-functional teams to deliver high-quality digital products aligned with business goals and user needs.…I am a highly experienced software engineer specializing in frontend development with over 20 years in producing scalable, modular React applications and extensive skills across the React ecosystem and TypeScript. My recent roles at CGI and Omnissas have involved modernizing complex web applications, implementing modular architectures with tools like Turborepo, and creating unified design systems to improve code reuse and user experience. Beyond front-end expertise, I have actively developed strong proficiency in Node.js, particularly for e-commerce solutions, integrating third-party applications and Commerce APIs to build high-performance platforms. I also possess full-stack experience and a commitment to CI/CD best practices, thriving in collaborative cross-functional teams to deliver high-quality digital products aligned with business goals and user needs.

Cleidson Pereira Machado

Full Stack Developer, Developer, Cloud Developer, +5

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I am a highly experienced software engineer specializing in frontend development with over 20 years in producing scalable, modular React applications and extensive skills across the React ecosystem and TypeScript. My recent roles at CGI and Omnissas have involved modernizing complex web applications, implementing modular architectures with tools like Turborepo, and creating unified design systems to improve code reuse and user experience. Beyond front-end expertise, I have actively developed strong proficiency in Node.js, particularly for e-commerce solutions, integrating third-party applications and Commerce APIs to build high-performance platforms. I also possess full-stack experience and a commitment to CI/CD best practices, thriving in collaborative cross-functional teams to deliver high-quality digital products aligned with business goals and user needs.…I am a highly experienced software engineer specializing in frontend development with over 20 years in producing scalable, modular React applications and extensive skills across the React ecosystem and TypeScript. My recent roles at CGI and Omnissas have involved modernizing complex web applications, implementing modular architectures with tools like Turborepo, and creating unified design systems to improve code reuse and user experience. Beyond front-end expertise, I have actively developed strong proficiency in Node.js, particularly for e-commerce solutions, integrating third-party applications and Commerce APIs to build high-performance platforms. I also possess full-stack experience and a commitment to CI/CD best practices, thriving in collaborative cross-functional teams to deliver high-quality digital products aligned with business goals and user needs.

Available to hire

I am a highly experienced software engineer specializing in frontend development with over 20 years in producing scalable, modular React applications and extensive skills across the React ecosystem and TypeScript. My recent roles at CGI and Omnissas have involved modernizing complex web applications, implementing modular architectures with tools like Turborepo, and creating unified design systems to improve code reuse and user experience.

Beyond front-end expertise, I have actively developed strong proficiency in Node.js, particularly for e-commerce solutions, integrating third-party applications and Commerce APIs to build high-performance platforms. I also possess full-stack experience and a commitment to CI/CD best practices, thriving in collaborative cross-functional teams to deliver high-quality digital products aligned with business goals and user needs.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

Work Experience

Flutter Developer and Consultant at CGI - Consultants to Government and Industry Incorporated

September 1, 2024 - June 6, 2024

Developed and maintained new modules and screens in Flutter and Dart for mobile solutions integrated with backend systems via REST APIs (Java and NestJS). Built responsive and accessible UIs, optimized performance, troubleshooted and debugged, wrote technical documentation, and conducted functional testing. Led modernization of legacy Flutter/Dart codebase by introducing Dart Workspaces and modular architecture, improving performance and maintainability. Enhanced user experience by updating mobile layouts and UX flows, contributed robust unit tests, collaborated with cross-functional teams to align frontend with backend and citizen requirements.

Fullstack Developer in NodeJS at OMNISSAS TECNOLOGIA LTDA

January 3, 2024 - October 15, 2024

Maintained legacy web systems, created user interfaces, translated business needs into programming solutions, corrected errors, implemented and documented REST APIs. Used PHP 8 with Laravel framework for advanced projects and frontend prototypes. Led improvements in documentation for legacy systems, reformulated system layouts, and organized support materials for complex systems hosted on Microsoft Azure cloud.

System Analyst and NodeJS Fullstack Developer at CASSEMS - Caixa de Assist. dos Serv. Pub. de MS

March 10, 2021 - November 19, 2023

Provided advanced support on legacy systems, maintained and documented APIs and web/mobile systems built with PHP, VueJs, NodeJS, React Native. Used MySQL, SQLite, Oracle DB and Docker environments. Led teams addressing issues on NodeJS platform products using frameworks like VueJS, NuxtJS, React Native and PHP. Developed advanced SQL queries, improved legacy database use, and supported Docker environment creation and maintenance.

Customer and User Support Agent at UNISYS INFORMÁTICA LTDA

January 20, 2020 - March 10, 2022

Provided advanced support to field technicians, mediated communication between local and international teams in English and Portuguese, managed incidents and SLA monitoring. Automated data analysis and report production with Python solutions, developed a Microsoft FLOW based web system for automating actions and improving team communications, resulting in enhanced incident management and workflow integration.

Senior Support Analyst and Fullstack PHP Developer at GERENCIAL INFORMÁTICA EIRELI ME.

October 3, 2017 - January 3, 2020

Provided user support for company system Albatroz, maintained Firebird 2.5 database and server environments. Transitioned from Java web apps to PHP 6 development, ported a Java web platform to PHP, enhanced it using Symfony and modern PHP frameworks for scalability and integration with related projects. Also worked with Delphi (Object Pascal) developing system modules.

Field Support Technician at PRODUZIR AGROPECUÁRIA LTDA

September 5, 2016 - May 2, 2018

Supported IT systems focusing on hardware, software, network environments, database administration. Installed and configured computers and devices, managed structured cabling for networks, administered local and remote computerized environments, created technical documentation and protocols, coordinated infrastructure improvement projects, conducted hardware inventories and trained end users.

Systems Analyst at CDC CLINIC (Cardiovascular Diagnostic Center)

August 1, 2004 - October 1, 2005

Organized, planned, implemented, and provided user support for software and hardware solutions related to the Brazilian MV Medical Systems, specifically the SOUL MV System. Focused on healthtech software solutions for hospitals, clinics, and public/private health networks.

Field Support Technician for Commercial Automation at SOLL AUTOMAÇÃO COMERCIAL LTDA.

January 1, 2012 - July 17, 2015

Led software implementation projects for supermarket chains, installed database servers and Microsoft workstations, managed technical support teams, provided training to ensure efficient system use and smooth technology adoption.

Flutter Developer and Consultant at CGI - Consultants to Government and Industry Incorporated

September 1, 2024 - June 10, 2024

Development and maintenance of new modules and screens in Flutter and Dart for mobile solutions integrated with backend systems via REST APIs (Java and NestJS). Responsible for building responsive and accessible user interfaces, optimizing system performance, troubleshooting and debugging, writing technical documentation, and functional testing. Analyzes architectural dependencies ensuring maintainable and scalable feature development aligned with Domain-Driven Design principles and modular code practices. Led modernization of legacy Flutter/Dart codebase by introducing Dart Workspaces and modular architecture, improved performance, maintainability, redesigned key layouts and UX flows, contributed robust unit tests enhancing stability, and collaborated with cross-functional teams aligning frontend and backend requirements.

Fullstack Developer in NodeJS at OMNISSAS TECNOLOGIA LTDA

January 3, 2024 - October 15, 2024

Maintained legacy web systems and developed user interfaces, translated business needs into programming, corrected system errors, implemented and documented REST APIs, and conducted advanced analyses of related systems. Used PHP 8 with Laravel framework for advanced projects and frontend prototypes to provide economical hosting and development alternatives. Led documentation improvements for legacy systems, reformed system layouts improving design and technologies, and organized support material for complex systems hosted on Microsoft Azure.

System Analyst and NodeJS Fullstack Developer at CASSEMS - Caixa de Assist. dos Serv. Pub. de MS

March 10, 2021 - November 19, 2023

Provided advanced support for legacy systems, maintained and documented APIs and web/mobile systems using PHP 6, Cake PHP, VueJs, NodeJS, React Native. Used MySql, SQLite, Oracle Database and Docker environments for projects. Led teams in solving system issues, created advanced SQL queries, and contributed from the beginning to new product development using NodeJS with NestJS APIs and VueJS or NuxtJS frontend frameworks.

Customer and User Support Agent at UNISYS INFORMÁTICA LTDA

January 20, 2020 - March 10, 2022

Provided advanced support to field technicians, assisted in call closures and demand management. Facilitated communication between local and international teams as English-Portuguese translator. Managed incidents and monitored SLAs ensuring deadlines were met. Developed Python automation solutions for data analysis and Excel integration improving report production and metrics monitoring. Created a Microsoft FLOW web system automating actions and enhancing team communication and workflow integration.

Senior Support Analyst and Fullstack PHP Developer at GERENCIAL INFORMÁTICA EIRELI ME.

October 3, 2017 - January 3, 2020

Provided advanced user support and maintained the Albatroz system focusing on Firebird 2.5 database. Performed maintenance on Windows and Linux servers. Developed Java web applications initially, then transitioned to PHP for company needs. Ported Java web platform to PHP 6, enhanced platform using Symfony and other PHP technologies for scalability and integration with related projects.

Field Support Technician at PRODUZIR AGROPECUÁRIA LTDA

September 5, 2016 - May 2, 2018

Supported, implemented, and maintained IT systems including hardware, software, networks, and databases. Managed computer setups, structured cabling, and computerized environments. Developed technical documentation, standardized IT protocols, coordinated infrastructure projects, inventoried hardware, and trained end users for effective IT system use.

Systems Analyst at CDC CLINIC (CARDIOVASCULAR DIAGNOSTIC CENTER)

August 1, 2004 - October 1, 2005

Organized, planned, implemented, and supported software and hardware solutions related to MV Medical Systems and SOUL MV System used in healthcare management. Supported hospital, clinic, health plan operators and networks with integrated systems for health management.

Field Support Technician for Commercial Automation at SOLL AUTOMAÇÃO COMERCIAL LTDA.

January 1, 2012 - July 17, 2015

Led software implementation for wholesale and retail supermarket chains including database and workstation installation. Managed technical support teams and provided employee training to maximize technology use in business operations.

Flutter Developer and Consultant at CGI - Consultants to Government and Industry Incorporated

September 1, 2024 - June 1, 2024

Developed and maintained new modules and screens using Flutter and Dart for mobile applications integrated with backend systems via REST APIs. Responsibilities included building responsive user interfaces, optimizing system performance, debugging, writing technical documentation, and conducting functional testing. Led modernization of legacy Flutter/Dart codebase by introducing Dart Workspaces and modular architecture, enhancing performance and maintainability. Collaborated with cross-functional teams to align frontend improvements with backend services and citizen-facing requirements.

Fullstack Developer in NodeJS at OMNISSAS TECNOLOGIA LTDA

January 3, 2024 - October 15, 2024

Maintained legacy web systems and created user interfaces. Translated company business needs into programming, corrected system errors, implemented and documented REST APIs, and performed advanced analysis of related systems. Used PHP 8 with Laravel to develop projects and front-end prototypes, improving hosting and development efficiency. Led documentation improvement initiatives, reformed system layouts, and managed support materials for complex systems hosted on Microsoft Azure.

System Analyst and NodeJS Fullstack Developer at CASSEMS - Caixa de Assist. dos Serv. Pub. de MS

March 10, 2021 - November 19, 2023

Provided advanced support for legacy systems, maintained APIs and web/mobile systems using PHP 6, Cake PHP, VueJs, NodeJS, and React Native. Developed new products with Nodejs/Nestjs APIs and Vuejs/Nuxtjs front end. Improved API documentation, led developer teams to resolve system issues, created advanced SQL queries for Oracle DB, and maintained Docker environments.

Customer and User Support Agent at UNISYS INFORMÁTICA LTDA

January 20, 2020 - March 10, 2022

Provided advanced support to field technicians including incident management and SLA monitoring. Translated communications between local and international teams. Developed Python solutions to automate data analysis, speeding report production and improving accuracy. Created a web system using Microsoft FLOW to automate team communication and improve incident management.

Senior Support Analyst and Fullstack PHP Developer at GERENCIAL INFORMÁTICA EIRELI ME.

October 3, 2017 - January 3, 2020

Provided advanced user support and maintained Firebird database. Managed Windows and Linux server environments for system deployment. Transitioned web applications from Java to PHP 6 for improved hosting and maintenance. Enhanced platforms using Symfony and modern PHP technologies ensuring scalability and integration.

Field Support Technician at PRODUZIR AGROPECUÁRIA LTDA

September 5, 2016 - May 2, 2018

Supported IT systems with hardware/software solutions and network/database support. Installed and configured computers and devices, managed structured cabling and monitored environments. Developed documentation, defined protocols, coordinated projects to improve infrastructure, managed hardware inventory, and trained end users.

Systems Analyst at CDC CLINIC (Cardiovascular Diagnostic Center)

August 1, 2004 - October 1, 2005

Organized, planned, implemented, and supported software and hardware solutions linked to MV Medical Systems, including the SOUL MV System. Supported health management technologies for hospitals, clinics and health networks.

Field Support Technician for Commercial Automation at SOLL AUTOMAÇÃO COMERCIAL LTDA.

January 1, 2012 - July 17, 2015

Led software implementation projects for supermarket chains, installed database servers and workstations. Managed technical support teams and provided training to staff to ensure efficient system usage.

Flutter / Dart Developer and Consultant at CGI - Consultants for Government and Industry Incorporated

August 1, 2025 - August 8, 2025

Developed and maintained new mobile modules and screens in Flutter and Dart integrated with backend systems via REST APIs, focusing on responsive and accessible UIs, system performance optimization, troubleshooting, documentation, and functional testing. Analyzed architectural dependencies to ensure scalable, modular features aligned with Domain-Driven Design principles. Contributed in parallel to frontend ecosystem modernization using React and TypeScript, designing modular architectures with Turborepo, creating reusable components based on Figma, and structuring the unified Agora Design System with an optimized development environment.

Full Stack Developer / Analyst at Omnissas Technology, Cassems, Unisys Informatics, Gerêncial Informatics, Produzir, Cardiovascular Medical Clinic - CDC, Soll Commercial Automation

January 1, 2024 - August 8, 2025

Worked primarily on maintaining legacy systems and developing new solutions including REST APIs and web interfaces using NodeJS, PHP, and Java frameworks. Provided advanced technical support and managed IT infrastructure (servers, networks, databases). Led modernization and migration projects transforming legacy applications into microservices architectures using Java Spring Boot and Quarkus, enhancing scalability and maintainability. Implemented automation in development lifecycles with CI/CD pipelines and test automation to improve software delivery and quality. Delivered end-to-end Java solutions aligned with business needs.