Hello, I'm

RanielliMontagna

A Software Engineer who turns business ideas into fast, scalable, and easy-to-use digital products

I build web and mobile applications end-to-end, combining solid architecture, user experience, and performance from the first commit.

From discovery to production delivery, I prioritize clean code, accessibility, technical SEO, and Core Web Vitals to generate measurable and sustainable results.

See my projects
Get in touch
Learn more about me
AboutMe

Hello! I'm Ranielli Montagna, a full stack developer passionate about turning ideas into innovative digital solutions. With over 4 years of experience, I specialize in creating web and mobile applications that combine exceptional functionality with intuitive design.

My journey began with a curiosity about how things work on the web, and since then I have been developing projects that positively impact people's lives. I believe technology should be accessible and make a difference.

When I'm not coding, you can find me exploring new technologies, contributing to open source projects, or planning my next development adventure.

00+

Years of experience

00+

Projects completed

Ranielli Montagna

Ranielli Montagna

My core competencies

A precise tech stack tailored for global demands.

My professional journey
ProfessionalExperience

Over 3 years building innovative solutions in companies of different sizes and segments, always focused on delivering value and growing technically.

01

Luizalabs

October 2023 - Present

02

Smarten

May 2022 - September 2023

03

SBSistemas

May 2021 - May 2022
Luizalabs logo

01

Mid-level Developer

LuizalabsOctober 2023 - PresentRemote
Current

I am part of the Luizalabs team, the technology innovation unit of Magalu, one of Brazil's largest retailers. I develop and maintain web and mobile applications for physical store operations, as well as robust and scalable APIs and backend solutions.

Key achievements:

Development of applications for retail operations
Maintenance of APIs and backend solutions
System integration in a high-impact environment
Work with modern and scalable technologies

Technologies used:

ReactReact NativeNode.jsGoAPIs REST
Smarten logo

02

Front-end Tech Lead

SmartenMay 2022 - September 2023Remote

I led a team of developers, ensuring code quality and application optimization. I created and maintained the corporate design system, and implemented monitoring and CI/CD solutions, boosting the efficiency and stability of the products.

Key achievements:

Technical leadership of a developer team
Creation and maintenance of a design system
Implementation of CI/CD and monitoring
Performance and scalability optimization

Technologies used:

JavaScriptReactDesign SystemCI/CDMonitoramento
SBSistemas logo

03

Front-end Developer

SBSistemasMay 2021 - May 2022On-site

First professional experience in the technology field, where I consolidated my technical foundation in front-end development. I developed applications using modern technologies and implemented best development practices.

Key achievements:

First professional experience in tech
Development of front-end applications
Consolidation of a solid technical foundation
Implementation of best development practices

Technologies used:

ReactElectronTypeScriptJavaScriptFront-end
Project Portfolio
MyProjects

A selection of my most recent work, including web, mobile applications, and APIs that demonstrate my technical skills.

View all projects
GitHubExplore on GitHub
Paludo Imóveis - Real Estate PlatformPaludo Imóveis - Real Estate Platform — 2Paludo Imóveis - Real Estate Platform — 3
1/3
webFeatured
Freelance

Paludo Imóveis - Real Estate Platform

Platform for real estate brokers with public catalog, tokenized link sharing, lead capture, and analytics dashboard.

Full StackFreelance
Property ManagementTokenized LinksLead CaptureBroker DashboardAnalyticsPublic Catalog+2
React 19TypeScriptTailwind CSSRadix UIFramer MotionZustand+9 more
Featured Projects
North Clinic - Management System
web
Featured
Esperto SistemasFull Stack

North Clinic - Management System

Complete management system for clinics and offices, with online scheduling, electronic health records, financial control, and billing.

SchedulingClient ManagementSalesFinancial+4
JavaScriptjQueryFullCalendarChart.js+12 more
Magalu Stockist Mobile
mobile
Featured
LuizalabsFront-end

Magalu Stockist Mobile

Corporate superapp for stockists at Magalu's physical stores, optimizing inventory control, goods receipt, and dispatch.

Order PickingSeparationDispatchGoods Receipt+3
React NativeTypeScriptMicro-frontend
Pratio - POS for Restaurants
desktop
Featured
PratioFull Stack

Pratio - POS for Restaurants

Point of sale (POS) and management system for bars and restaurants, with table and order control, NFC-e issuing, and a digital menu.

Point of SaleNFC-e IssuingTable ControlOrder Tickets+5
ReactElectronTypeScript
Services
HowIcanhelpyourproject

I offer complete development solutions, from conception to delivery, focusing on quality and exceptional results.

Web DevelopmentWEB
API DevelopmentBACKEND
AI IntegrationAI
Mobile DevelopmentMOBILE

WEB

Most Popular

Web Development

Creation of modern, responsive and performant web applications using the best market technologies.

  • High-conversion landing pages
  • Complete e-commerce
  • Administrative dashboards
  • REST and GraphQL APIs
  • External services integration
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BACKEND

API Development

Robust and scalable backend systems designed to power your applications with high performance.

  • RESTful & GraphQL APIs
  • Microservices Architecture
  • Database Design (SQL/NoSQL)
  • Secure Authentication (OAuth/JWT)
  • Cloud Infrastructure (AWS/Vercel)
Get Started

AI

Most Popular

AI Integration

Smart solutions powered by Artificial Intelligence to automate processes and enhance user experience.

  • LLM Integration (GPT/Claude)
  • Smart Chatbots & Assistants
  • Automated Workflows
  • Data Analysis & Insights
  • Custom AI Agents
Get Started

MOBILE

Mobile Development

Native and hybrid applications for iOS and Android with exceptional user experience.

  • React Native apps
  • Native interface
  • API integration
  • Push notifications
  • App store publishing
Get Started
Let's Work Together

Ready to start your project?

Let's talk about how I can help turn your idea into reality.

Get in Touch
Let'sworktogether

I'm interested in freelance or full-time opportunities. If you have a project in mind or just want to chat, I'd be happy to talk.

Direct email
[email protected]

Available for projects

Response time: ~24h

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