Luiz Ventura

Software Engineer

A decade of turning ideias into <code />; code into solutions.
With solid experience in Linux systems, Docker, ReactJS, React Native, Node.js, Next.js, RabbitMQ, and Apache Kafka, I am a developer with strong passion for technology and software architecture. In addition to my technical skills, I've also led junior developers and served as a career mentor.

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Projects

DW Barbershop: The perfect app for your barbershop
DW Barbershop: The perfect app for your barbershop
DartFlutterRiverpodShared Preferences
Full Cycle Invest
Full Cycle Invest
DockerGolangApache KafkaNestJSNextJSTypeScriptPrisma
Notification Microservice
Notification Microservice
DockerTypeScriptNestJSJestApache KafkaPrisma
Codelivery: Real-time tracking
Codelivery: Real-time tracking
GoNestJSReactJSKafkaKubernetesElastic SearchKibana
Happy: Connecting heroes
Happy: Connecting heroes
Node.jsReactJSReact NativeExpoTypeORMMulterTypeScript
Proffy: A network of independent teachers and students
Proffy: A network of independent teachers and students
Node.jsReactJSReact NativeExpoTypeScriptKnex
Historical F1
Historical F1
React NativeExpoTypeScriptErgast Developer API
eColeta: The easiest way to handle waste disposal
eColeta: The easiest way to handle waste disposal
Node.jsReactJSReact NativeExpoTypeScriptKnexMulterCelebrate
Be The Hero: To be a hero, all it takes is solidarity
Be The Hero: To be a hero, all it takes is solidarity
Node.jsReactJSReact NativeExpoJestKnexCelebrate
DevRadar: Find the developer you need
DevRadar: Find the developer you need
Node.jsReactJSReact NativeExpoWeb SocketMongoDBMongoose
Tindev: Find the perfect dev
Tindev: Find the perfect dev
Node.jsReactJSReact NativeWeb SocketMongoDBMongoose
GerenciaOS: Service Order Manager
GerenciaOS: Service Order Manager
FirebaseAngularTypeScriptngBootstrap
EletroStore: eCommerce with Angular and MongoDB
EletroStore: eCommerce with Angular and MongoDB
Node.jsAngularTypeScriptMongoDBMongoosengBootstrap
Financial Control System
Financial Control System
Node.jsAngularMySQLSequelizeJasmineKarmangBootstrap
UPaqui: Public Utility Ionic App
UPaqui: Public Utility Ionic App
Ionic FrameworkTypeScriptCordovaFirebase
Boat Escape Game
Boat Escape Game
C#OpenGLTaoFramework
Agile Home: Home Automation System
Agile Home: Home Automation System
Raspberry PiArduinoC++PythonJavaScriptPHPMySQL
Lexical Analyzer with C#
Lexical Analyzer with C#
C#Windows Forms
TremBão Restaurant
TremBão Restaurant
JavaServer FacesJava Persistence APIHibernatePrimeFacesMaterialize CSS
Connected Components Labeling
Connected Components Labeling
C#Windows FormsOpenCV
Histogram Equalization
Histogram Equalization
C#Windows FormsOpenCV
Sorting and Searching Methods
Sorting and Searching Methods
C#Windows Forms
Drug Interactions
Drug Interactions
ASP.NETEntityMaterialize CSSJQueryMicrosoft SQL Server
CRUD with ASP.NET MVC
CRUD with ASP.NET MVC
ASP.NETEntityMaterialize CSSJQueryMicrosoft SQL Server
Math Game
Math Game
C#Windows Forms
Internet Provider Management System
Internet Provider Management System
C#Windows FormsEntityMicrosoft SQL Server
Sys Açaí
Sys Açaí
C++

Experience

Fullstack Developer · Suflex
April, 2025 - Present

  • Developed software using Docker, Redis, Postgres, Nest.js, GraphQL, and ReactJS to create complete, scalable, and efficient solutions

  • Applied Hexagonal Architecture (Ports and Adapters) and Clean Architecture to ensure low coupling, maintainability, and high testability

  • Trained developers transitioning into tech, supporting them in learning and executing the company's projects

Software Engineer · PumpkinTech
January, 2024 - August, 2024

  • Built a complete system from scratch using Docker, Postgres, Node.js, and ReactJS, transforming a slow and limited low-code application into a fast, robust, and scalable system

  • Applied backend and database performance optimizations, reducing the execution time of complex queries by up to 98% (from 86 seconds to just 1 second)

  • Developed Android and iOS apps using React Native with an offline-first approach, prioritizing user experience even in limited connectivity scenarios

  • Performed UX and performance optimizations in Android and iOS apps, delivering a smoother and more responsive user experience

  • Published apps on the Play Store

  • Developed REST APIs using Java Spring Boot

Frontend Developer & Tech Lead · IvoryIT
June, 2022 - March, 2023

  • Developed web apps using ReactJS and mobile apps for Android and iOS using React Native

  • Published apps on the App Store and created CI/CD pipelines to streamline the iOS development workflow

  • Applied Hexagonal Architecture (Ports and Adapters) to ensure low coupling, maintainability, and testability

  • Provided technical leadership to junior developers and interns, supporting them with tasks and professional development

  • Served as a career mentor for an intern, offering professional guidance and helping in the development of his technical skills

Mobile Developer & Tech Lead · A2W Tecnologia
March, 2021 - June, 2022

  • Developed Android and iOS apps with React Native, prioritizing an offline-first approach to enhance user experience

  • Implemented data compression strategies, resulting in an improvement of more than 99% in response time for requests involving media uploads

  • Published apps on the App Store

  • Served as a tech lead, guiding and supporting junior developers in their tasks and professional growth

Mobile Developer · BrasilSync
August, 2020 - March, 2021

  • Developed Android and iOS apps using React Native

  • Drove performance optimizations on queries and requests, applying an offline-first approach to ensure a better user experience in environments with limited connectivity

Fullstack Developer Intern · Alterosa City Hall
September, 2019 - December, 2019

  • Designed, developed, and deployed a complete service order management system, optimizing internal processes and increasing operational efficiency for the city

Luiz Augusto Ventura