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João Marcelo Furtado Romero

@joomarcelofurtadorom

Full Stack Engineer at Itaú Unibanco building a corporate credit portal, reusable design system, and cloud infrastructure.

Brazil

Message

At Itaú Unibanco, I contribute to a corporate credit portal spanning credit analysis and transactional flows. I helped establish its Angular front-end foundations and reusable, framework-agnostic components with Lit.

I also implement Java microservices and BFFs, and provision AWS infrastructure with Terraform. Earlier, as a Software Engineer Intern at Itaú Unibanco, I developed .NET microservices and Angular micro frontends, and worked on Python-based data pipelines for corporate credit.

At Baraúna Soluções Biológicas, I rewrote a C# (.NET) backend using Clean Architecture and helped reduce server costs by around 95% through a move to an Azure VM. On the Planner Bíblico Digital project, I worked on a planning website with dashboards, and improved its loading time by 50% through a migration to Next.js.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Engineer

Current

Itaú Unibanco

Jan 2026 - Present (9 months)

● Built a corporate credit portal from the ground up — covering both credit analysis and transactional flows — and contributed to defining the platform's architectural backbone.

● Structured the foundational front-end using Angular, defining standards, modular organization, and core foundations for the scalable evolution of the application.

● Developed framework-agnostic components using Lit, co

Current

Junior Software Engineer

Current

Itaú Unibanco

Jan 2026 - Present (9 months)

- Atuação na criação do zero de um portal de crédito PJ, responsável por análise e transacional (ex: liberação de limite), participando da definição e construção do chassi arquitetural da plataforma.

- Estruturação do front-end base utilizando Angular, definindo padrões, organização modular e fundações para evolução escalável da aplicação.

- Desenvolvimento de componentes agnósticos a framework

Software Engineer Intern

Itaú Unibanco

Jun 2025 - Dec 2025 (6 months)

- Atuação no desenvolvimento de um portal de análise de crédito PJ, em um dos maiores bancos da América Latina, em um ambiente altamente regulado, orientado a dados e com forte integração entre tecnologia e negócio.

- Experiência prática com arquiteturas modernas baseadas em microsserviços, utilizando .NET com Clean Architecture e DDD, garantindo soluções alinhadas ao domínio de crédito empresari

C#.NET Framework JavaScript TypeScript Angular Python Terraform Domain Driven Design MySQL SQL

Full Stack Engineer

Itaú Unibanco

Jun 2025 - Dec 2025 (6 months)

● Developed features for a corporate credit analysis platform at the largest bank in Latin America, operating in a highly regulated, data-intensive fintech environment.

● Built back-end microservices in C# .NET with Clean Architecture and DDD, ensuring domain alignment across the corporate credit system.

● Developed Micro Frontends (Angular) and BFF gateways in Python, promoting decoupling betwe

Full Stack Engineer

Baraúna Soluções Biológicas

Nov 2024 - May 2025 (6 months)

- Reescrevi o backend escrito em C# (.NET) aplicando Clean Architecture, tornando o código mais modular e
escalável

- Reduzi custos de servidor em torno de 95% ao migrar de serviços pagos para uma VM no Azure, além de configurar
pipeline e dependências com Docker

- Refatorei os estilos de Styled-Components para TailwindCSS, aumentando a velocidade de produção

- Criei componentes utilitários e d

Backend Domain Driven Design Azure CI CD ASP.NET C#

Frontend Developer

Baraúna Soluções Biológicas

Jun 2024 - Nov 2024 (5 months)

JavaScript | Typescript | React.js | C# (.NET) | ASP.NET

Frontend Development Backend Web Development

Engenheiro Full Stack

Planner Bíblico Digital

Sep 2023 - Jun 2024 (9 months)

Um website com a proposta de um planner para ajudar crentes em sua jornada espiritual mantendo seus registros e os visualizando através de dashboards e muito mais

PostgreSQL Next.js React Fastify TypeScript BASH Git NodeJS Web Development

Frontend Developer

Planner-Bíblico

Aug 2023 - Jun 2024 (10 months)

● Implemented responsive layouts with TailwindCSS, driving a 70%+ mobile user adoption rate.
● Accelerated project delivery/deployments by implementing a CI/CD pipeline on the server.
● Optimized the website's loading time by 50% by refactoring the application to the Next.js framework. This change allowed the previous React.js application, to be more performant and lightweight by using server-side

Developer Frontend

Beó

Jun 2023 - Dec 2023 (6 months)

Um website com dashboards para ajudar usuários e empresas a fazerem uma análise mais profissional dos dados que disponibilizamos da nossa API

Frontend Development Solid.Js Tailwind Dashboarding TypeScript Communication Skills

Developer Frontend

Alpine Carpentry

Feb 2023 - Jun 2023 (4 months)

Portfólio para uma empresa de carpintaria local na cidade de Vancouver, quando morei por lá

Teamwork Next.js Tailwind Web Development JavaScript GitHub TypeScript Git

Full Stack Engineer

Alpine Carpentry

Feb 2023 - May 2023 (3 months)

● Built TypeScript components with Next.js and TailwindCSS for a carpentry business website.
● Implemented form validation and data sanitization using regex and TypeScript-native libraries.
● Delivered a fully responsive, mobile-friendly website with accessibility improvements.

Education

Degrees, certifications, and relevant coursework

FIAP

Bachelor of Software Engineering

● Projects with companies such as IBM, Heinz and Tech Mahindra
● Front-end development with Javascript, React.js, HTML, CSS and Back-end development with Python
● IoT with Arduino (C, C++)

Advanced PHP

Issued Jan 2023

Learning Linux Command Line

Issued Feb 2023

Learning Linux Shell Scripting

Issued Feb 2023