Available for new opportunitiesFULL STACK | PYTHON · NODE.JS · REACT

Code with purpose.
Data & Automation.

Isllan Toso Pereira - Desenvolvedor Backend Python

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ABOUT

Isllan Toso Pereira

Full stack developer working in production since 2022. Python and Node.js on the backend, React on the frontend, focused on APIs, automation and clean code — delivering real efficiency and up to 50% reductions in processing time.

Years in tech

10+

Projects delivered

UVV

Computer Science

PROJECTS

Selected

Robust systems and high-impact automations.

Private

Sistema Veicular

Multi-tenant SaaS product for car dealerships, with RLS data isolation, native desktop (Tauri) and CI/CD with E2E, load and security testing.

Next.jsReactSupabaseTauri

Live

Private

Travel Dashboard V1

Full stack analytics dashboard with an async FastAPI backend, geospatial visualization (deck.gl) and distributed caching with Redis.

ReactFastAPIDockerRedisdeck.gl

Paulo Veículos

Automotive marketplace with a vehicle catalog, real-time financial simulation and a responsive interface with a strong focus on UX.

ReactTypeScriptTailwind CSSFramer Motion

Live Project

WebP Converter

Browser-based batch image conversion tool with ZIP export and optimized memory management for large batches of images.

TypeScriptReactJSZipCanvas API

Live Project

Blog Esporte UVV

Sports blog platform with dynamic content loading via JSON, category-based navigation and a lightweight admin system.

JavaScriptHTMLCSSJSON

Live Project

Formação para a Crisma

Study guide with sessions organized in thematic modules, paginated content and a review quiz, using static rendering.

Next.jsReactTypeScript

Live Project

Contract Generator

Desktop automation for vehicle contracts, with field validation, PDF generation and password protection for documents.

PythonCustomTkinterReportLabPyPDF2

Project

Analytics Converter

Platform for batch conversion of CSV datasets to Big Data formats — Parquet, ORC, Feather and HDF5 — following Clean Architecture.

PythonPandasPyArrowClean Architecture

Project

Estoquei

Full stack messaging platform with JWT authentication, a Node.js/MongoDB backend and an Angular frontend in a layered architecture.

AngularNode.jsMongoDBJWT

Project

STACK

Technologies

Languages

Python
TypeScript
SQL

Frameworks

FastAPI
Node.js
React

Databases

PostgreSQL
MS SQL Server
MongoDB

DevOps

Docker
GitHub Actions
Azure DevOps

Concepts

APIs REST
CI/CD
Automação

JOURNEY

Experience & Education

Dec 2025 — Present

Software Developer

Globalsys (VixPar)

Python REST APIs integrated with SQL Server and PostgreSQL.
Workflow automation and version control on Git/Azure DevOps.
Architecture decisions and code review.

May 2025 — Nov 2025

Development Intern

Globalsys (VixPar)

Process automation and data analysis with Python and Pandas.
Real-time dashboards with Streamlit and KPIs.
SQL Server optimization and caching with Redis.

Jun 2022 — Apr 2025

Freelance Developer

QualiTech Sistemas

On-demand full stack development via Workana.
Paulo Veículos: evolved into a multi-tenant SaaS with native desktop.
Vehicle contract automation (-50% processing time).

Nov 2023 — Jun 2024

IT Support & Infrastructure

Fiat Podium

Administrative process automation with Python.
Active Directory and hardware provisioning (PXE/IPv4).
DMS systems (Linx Apollo) and monitoring with Zabbix.

Sep 2022 — Nov 2022

IT Analyst

RefrigeraVix

Technical support for users and equipment.
Local network maintenance.
Internal systems administration.

CONTACT

Let's talk?

Response within 24 business hours.

Technologies

Languages

Frameworks

Databases

DevOps

Concepts

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