Ricardo Augusto Kowalski

I’m a front-end developer fueled by coffee, good playlists, and complex challenges. I’ve been working with web development for over 12 years and, in recent years, I’ve specialized in React, Next.js and TypeScript, building scalable, high-performance applications with solid architecture and a focus on results.

My experiences

Work experience

I have been working as a front-end developer since 2013, when I joined Sou Digital. In the last years I worked on Meu Rosinha, on Sonica, and with other side projects. I'm currently building Hero a smart assistant for MySide Personal Shoppers.

Front-End Developer at MySide

Florianópolis, SC, Brazil • Remote • 2025 - Present

Site LinkedIn

Developed Hero, an internal intelligent assistant used daily by 40+ Personal Shoppers for real estate service and negotiation workflows.
Used AI tools during development to generate components, business logic, and automated tests, optimizing implementation time and solution experimentation.
Built two main products: a mobile PWA with AI-integrated chat for querying developments, builders, and property types, plus a negotiation pipeline module with task and event management; and a desktop application featuring negotiation management, property search, and an interactive presentation tool used during initial strategic client meetings.
Designed and implemented front-end architecture using React 19, Next.js 15 (App Router) and TypeScript, focusing on scalability, performance, and modular organization.
Implemented offline-first strategies with Service Workers, IndexedDB, and cache persistence, ensuring continuous application usage even under unstable connectivity.
Structured unit and component testing using Jest and React Testing Library.

Front-End Developer at Meu Rosinha

Timbó, SC, Brazil • Remote • 2021 - 2025

Site LinkedIn

Development of several projects including a website, a web application, and an online store. In the past I also worked on legacy projects.
Migrated and upgraded the stack to React, Next.js, and TypeScript, ensuring greater scalability, maintainability, and long-term technical sustainability.
Re-architected the front-end structure focusing on componentization and reuse, reducing complexity and enabling continuous product evolution.
Directly contributed to supporting and growing a user base of 1,200+ subscribers through ongoing improvements and the development of new features such as a WhatsApp module and catalog expansion.
Actively participated in the visual identity rebranding, delivering a more consistent, modern interface aligned with the brand’s positioning.

Front-End/Full-Stack Developer at Sou Digital

Timbó, SC, Brazil • On-site • 2013 - 2025

Site LinkedIn

Contributed to the design and development of websites, landing pages, web applications, e-commerce platforms, and proprietary systems, supporting the technical evolution and scalability of company solutions.
Delivered 200+ projects throughout career for national and international clients across multiple industries.
Actively contributed to the evolution of a proprietary CMS, implementing structural improvements that accelerated module creation and content management processes by at least 2x.
Built complex interfaces focused on performance, code organization, and architectural standardization using HTML, CSS, Sass, JavaScript, jQuery, and Webpack.
In specific projects, also worked as a Full-Stack developer, building integrations and back-end features using PHP, Laravel, MySQL (Eloquent), OpenCart, and platforms such as Tray.

Front-End Developer at Sonica

Timbó, SC, Brazil • On-site • 2017 - 2021

Site LinkedIn

Worked on the development of the no-code platform Sonica during the early years of the startup within Sou Digital, directly contributing to the product’s evolution and consolidation.
Actively collaborated with the technical team on platform development using HTML, CSS, Sass, Bootstrap, JavaScript, jQuery, Webpack, PHP, and Laravel.
Implemented new features and interface fixes for both generated websites and the platform’s CMS.
Contributed to the creation of projects published on the platform, supporting real-world validation and continuous experience improvement.

Education and certifications

I've been working with development for so long, but between 2014 and 2017, I actually studied Advertising and Marketing. My passion for development was always bigger, so I decided to keep going with Web Development.

Full-Stack and Mobile Development at Rocketseat

Brazil • Remote • 2023 - Present

Site LinkedIn

React: Hooks, Context API, API consumption, unit and integration testing, Next.js, SSR, SSG, Full-Stack apps and design systems.
Node.js: Fastify, NestJS, SOLID principles, design patterns, scalable APIs, and automated testing.
React Native: Navigation, API integration, push notifications, deep linking, animations, micro-interactions, and offline-first strategies.
Additional Skills: JavaScript, TypeScript, Redux, Zustand, multi-tenant SaaS boilerplate with RBAC, web accessibility, SEO for developers, Micro SaaS development and functional programming.

Full-Stack Development at Udemy

Brazil • Remote • 2019 - 2023

Site LinkedIn

Front-end: HTML5, CSS3, JavaScript (ES6+), React, Vue.js, Angular.
Back-end: PHP and Node.js, building applications with relational (MySQL, PostgreSQL) and NoSQL (MongoDB) databases, implementing authentication.
Tools: Gulp and Webpack for build optimization and automation.
Programming Paradigms: Functional programming, Object-Oriented Programming (OOP).

Full-Stack Development at Laravue

Australia • Remoto • 2021 - 2022

Site LinkedIn

Laravel: Environment setup, creating routes, controllers, middlewares, and views. Mastery of dependency injection and best practices for building scalable and secure applications.
Vue.js: Directives, state management with Vuex, data exchange between components, and route handling with Vue Router. Creating dynamic and interactive user interfaces.

Social Communication: Advertising and Marketing at Uniasselvi

Indaial, SC, Brazil • On-site • 2014 - 2017

Site LinkedIn

I have a Bachelor’s degree in Advertising and Marketing.
Broad understanding of communication, marketing, and design.
Skills in advertising creation, copywriting, photography, graphic design, art direction, and multimedia production.
Knowledge of marketing strategies, consumer behavior, branding, and campaign planning.
Studied digital media, new technologies in communication, and audiovisual production.
Strong foundation for working at the intersection of creativity and strategy in the digital environment.

Skills and expertise

JavaScript

TypeScript

React

Next.js

Vue.js

HTML

CSS

Redux

Zustand

Context API

TailwindCSS

Bootstrap

jQuery

Sass

Axios

Tray

Twig Template Engine

APIs Rest

React Query

React Hook Form

React Router

Zod

Radix UI

shadcn/ui

Stitches

Styled Components

T3 Env

CASL RBAC Authorizations

day.js

Lighthouse

Framer Motion

Google Maps API

Browser APIs

Jest

Vitest

React Testing Library

Playwright

MSW

Contact me

How about we have a chat? I’m open to talking and exploring new opportunities. Feel free to reach out to me at ricardoakowalski@gmail.com or through my social media. Let’s connect!

Check out my full profile with experiences, courses, and certifications on LinkedIn, or take a look at my resume.

LinkedIn Resume

Ricardo Augusto Kowalski

Work experience

Front-End Developer at MySide

Hero Mobile

Hero Desktop

Front-End Developer at Meu Rosinha

Meu Rosinha

Meu Rosinha: Website

Meu Rosinha: Online Store

Front-End/Full-Stack Developer at Sou Digital

Geo Marine Survey Systems

LinkLaw

DoWork

Città Construtora

Tonino Lamborghini Residences Balneário Camboriú

Vista Paradiso Residences

Alencar Arquitetura

JJD Arquitetura

Graal Beer

Allbot

Simultaneo

Roto Fermax

Uniasselvi / ENEM

Emicida

Milton Nascimento

Julian Gallash

Yakã

Freitag Laboratórios

Grupo Eurofios

Euroroma

Butzke Móveis

Brasil Botões

Bertoldi Advocacia

Recobrança

Patrimono

Chilique da mamãe

Colotop

GEOvendas

Vitru

Grupo Kyly

Feira de Oportunidades Viacredi

Estação Kyly

Front-End Developer at Sonica

Education and certifications

Full-Stack and Mobile Development at Rocketseat

ProjectInBio Micro SaaS

Multi Tenant SaaS: Next.js and Fastify + RBAC

React Native Coffee Delivery App

React Native Ignite Gym Tracker App

React Native Marketspace App

React Native Daily Diet Tracker App

React Native Ignite Teams App

React Native To-Do List App

Coffee Delivery

BookWise

Ignite Call

Ignite Call Design System

Ignite Shop

Pizza Shop

GitHub Blog

To-Do List

Fast Feet API

Forum API in NestJS with DDD and Clean Architecture

GymPass Style App API

Find a Friend API

Daily Diet API

Full-Stack Development at Udemy

Full-Stack Development at Laravue

Social Communication: Advertising and Marketing at Uniasselvi

Skills and expertise

Contact me

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