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Fullstack Engineer · São Paulo, Brazil

Igor Pereira dos Santos

I build systems that scale — from Bubble.io MVPs to Java backends in production.

5 years wiring Azure, automations and financial APIs for companies that can't afford downtime.

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Trusted with solutions for

ItaúUnimedAssaíPluxeeAPetPipeimobItaúUnimedAssaíPluxeeAPetPipeimob
About

Hybrid engineering — from low-code to enterprise.

I'm Igor, a fullstack engineer based in São Paulo. For 5 years I've shipped systems that handle enterprise traffic — Itaú, Unimed, Assaí, Pluxee — and MVPs that need to be live tomorrow, in Bubble.io and Logic Apps.

My sweet spot is the boundary: financial integrations (Vindi, Asaas, Celcoin, Suthub), Azure automations and Java/.NET APIs that have to talk to anything. I also co-founded ECEM, a free tutoring project that started among ETEC classmates during the pandemic and grew into multiple courses — I served as peer mentor and tutor from 2021 to early 2023.

0+years
shipping in production
0clients
enterprise served
0+integrations
financial APIs delivered
Portrait of Igor Pereira dos Santos
Igor S.São Paulo · BR
Stack

Tools I use every day.

Depth in enterprise Java/.NET, speed in Bubble.io and React, infrastructure on Azure.

01

Backend

Java/Spring · C#/.NET · Node · PHP

Spring Boot, ASP.NET Core, Express, microservices, REST/GraphQL

02

Frontend

React · Next.js · TypeScript · Tailwind

Angular, MUI, Motion, GSAP, design systems

03

Low-code

Bubble.io Specialist · Logic Apps

Ship MVPs in weeks, custom plugins, visual automation

04

Cloud & DevOps

Azure · Docker · CI/CD

API Management, Functions, App Services, GitHub Actions

05

Database

PostgreSQL · SQL Server · MongoDB

Firebase, Redis, modeling, performance tuning

06

Mobile

React Native · Cordova

Hybrid apps, store deploys, push notifications

Experience

5 years shipping — since 2021.

Working in parallel with enterprise clients via consultancy and on focused projects.

  1. MPDS

    Partner · Full-Stack Developer

    2021 — Present

    Company where I'm a partner — on-demand services: landing pages, websites, apps, technical support and ad-hoc consulting.

    • Landing pages and marketing sites end-to-end — from design to deploy, focused on performance, SEO and conversion.
    • Custom apps and web systems — Bubble.io for fast validation, traditional stack when the product needs more.
    • Ad-hoc consulting — code review, payment integrations, Azure automations and recurring technical support.
    StackNext.js · Bubble.io · Node · Java · .NET · Azure
  2. Pipeimob

    Full-Stack Developer

    2025 — 2026

    Real-estate transaction platform (TRM) integrated with a Digital Bank — fullstack across two squads.

    • Banking squad — commission split, receivables anticipation and tax document issuance on a product moving R$ 40MM/month in commissions.
    • Rentals squad — end-to-end TRM (contracts, recurring billing, tax documents) with notary offices certified in São Paulo, Rio de Janeiro, Santa Catarina and Rio Grande do Sul.
    • Bubble.io as the main stack, with custom plugins and cross-squad standardization; PHP/Node/Python on the backend for what needs performance.
    StackBubble.io · Plugins · PHP · Node · Python · REST
  3. APet (Amigoo Pet)

    IT Specialist

    Apr/2023 — May/2025

    Pet health insurance — built the IT department in Scrum and ran the SAV, claims support and BI.

    • SAV — Sales SaaS Portal (Bubble.io + Azure) end-to-end for a broad set of enterprise partners (Itaú, Unimed, Assaí, Pluxee, among others), at the security standard a bank like Itaú demands; Vindi integrations wired into the sales flow.
    • Support system for the claims approval team (member card, authorizations, case reviews, per-product flows) on mobile and web — reimbursement decisions stayed human and auditable.
    • IT department built from zero with a partner consultancy: Azure governance (DevOps · CI/CD · API Management), Power BI for leadership, Scrum + ClickUp + dailies as the team ritual.
    StackBubble.io · Azure · Power BI · Vindi · SutHub · Scrum · ClickUp
Education

Formal study and certifications.

Software Engineering, technical IT diploma and certifications in cloud and low-code.

  • Universidade São Judas Tadeu

    Software Engineering

    2023 — 2026

  • ETEC

    Systems Analysis and Development

    2020 — 2022

  • CNA Languages

    English — conversational

    2014 — 2017

Certifications

  • Microsoft Azure Fundamentals (AZ-900)
  • Bubble.io Specialist
  • Scrum Foundation Professional
  • Java Spring Boot — Advanced Backend
  • English Proficiency — CNA
Peer mentorship

ECEM — tutoring that grew from inside ETEC.

I co-founded ECEM in 2021, during the pandemic, with a classmate at ETEC. It started as free tutoring for friends in our class and grew into other courses — Software Development, gastronomy, business administration, tourism — with a partnership with EACH USP, which brought us logic and math content and opened up the campus to our group. I served as peer mentor and tutor until early 2023.

  • 100% free tutoring from day one
  • 4+ ETEC courses reached
  • Java, Spring, React, JS, Portugol
  • Partnership with EACH USP
ETEC students gathered in the computer lab after a project class
Igor running a live project session with a microphone
Lecture on object-oriented programming concepts with an anatomy analogy
Contact

Let's talk.

Project, opportunity or a virtual coffee — inbox is open.

Or copy my email

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