Ricardo
Thiesen

Senior Software Developer from Brazil. 5 years of experience developing e-commerce projects. Currently building amazing features for the Panvel App!

contact git://github.com linkedin --profile

[ STATUS ]

Currently building at Grupo Panvel

[ FOCUS ]

Mobile, Backend & Cloud Architecture

[ AVAILABILITY ]

Remote / UTC-3 — Brazil

stack --list

[5 GROUPS]

001/005

Mobile

› React Native
› TypeScript
› Expo

002/005

Back-end

› Java
› Spring Boot
› NestJS
› PostgreSQL
› Prisma
› REST

003/005

DevOps & Infra

› Docker
› Kubernetes
› Jenkins
› GitHub Actions
› Nginx
› AWS

004/005

Observability

› Datadog
› BugSnag
› GA4
› Firebase A/B
› Kong

005/005

AI-assisted Dev

› Claude
› GitHub Copilot
› Codex
› MCP / RAG

career --timeline

[3 ENTRIES]

2021 — PRESENT

WORK

Grupo Panvel

Software Engineer II

DEC 2023 — PRESENT

▸Key contributor to the full React Native e-commerce app refactor — JS→TS, class→functional, redesign. Store rating: 3.4 → 4.9.
▸Implemented clear separation of concerns between screens and components, tripling feature delivery speed.
▸Shipped an in-app AI chatbot and assistant, and led the Google Sign-In integration with the internal auth service.
▸Worked on the Java/Spring Boot BFF — new implementations, integrations, and endpoints — and applied AI agents to speed up investigation, refactoring, and tests.
▸Set up observability (BugSnag, Datadog, Kong, GA4), ran App Store/Play release cycles, and mentored juniors and interns.

Software Engineer

MAR 2022 — DEC 2023

▸Built the payment screen and its components — a revenue-critical flow.
▸Built the product detail screen and contributed to search and catalog.
▸Worked on Panvel Clinic, a standalone module in the app ecosystem.
▸Cut load times, raised FPS, and lowered the crash rate.

Software Developer Intern

JUN 2021 — MAR 2022

▸Innovation projects in React Native, Angular, and TypeScript.

2024

FREELANCE

Freelance — Praticantes App

Mobile Developer

2024

▸Full migration from JavaScript to TypeScript.
▸Improved usability, navigation fluidity, and stability — reduction in user-reported issues.

2025

EDUCATION

FACCAT — Faculdades Integradas de Taquara

Bachelor's Degree in Information Systems

2025

selected_works.o

DISPLAY: GRID_2COL

01 / FLAGSHIP

Panvel App

FEATURED

Grupo Panvel's e-commerce app — hundreds of thousands of users, generating millions of BRL in daily revenue. Key contributor to the full React Native refactor and redesign that raised the store rating from 3.4 to 4.9.

React NativeTypeScriptJavaSpring BootNodeJSAWSGA4Datadog

[ PRIVATE_REPO ]

02 / SAAS

Precitto

PRODUCTION

SaaS in production for pricing artisan micro-entrepreneurs. JWT + Google login, Stripe payments, transactional emails via Resend, and analytics with PostHog.

Next.jsSupabasePrismaTypeScriptStripePostgreSQL

[ VISIT_SITE ] →

03 / SITE

Velas Gaya

LIVE

Institutional website for an artisan candle brand. Built with a focus on user experience and brand visual identity.

Next.jsTypeScript

[ VISIT_SITE ] →

04 / MOBILE

App Praticantes

RELEASED

App for a religious community. JS→TS migration, usability and navigation improvements, new features.

React NativeTypeScriptExpo

[ PRIVATE_REPO ]

about --bio

cat /home/rthiesen/bio.txt

I'm a software engineer from Brazil 🇧🇷. Enthusiast of all things that come together as a system. Love to hack, learn new tools, always eager to dive straight into learning by experimentation. I'm into software architecture, cloud deployments and mobile development.

Currently, I'm working at Grupo Panvel, where I develop awesome features for the Panvel app. My tech stack revolves around React Native, Java (Spring), and NodeJS, and I frequently deal with AWS cloud environments.

I'm always looking for ways to enhance my workflow by integrating AI-powered tools into my development process. I value practical, efficient, and maintainable solutions.