Dionatã Bergmann

Hello, I am Dionatã Bergmann!
Mid-level Frontend Engineer · Web and Mobile with 4+ years shipping products in React, React Native, and TypeScript. I work on high-traffic corporate systems, international apps, and microfrontend architectures with REST/GraphQL integrations. MBA in Frontend Engineering (FIAP). I support backend work with Node and NestJS when necessary.

Frontend Web Developer
February 2025 - Present
●I work on the invoice (nota fiscal) features team of the web ERP (React + TypeScript), used by companies with high user volume, prioritizing maintainability and UX in a critical corporate environment.
●I contribute to migrating the main project to a microfrontend architecture, focusing on componentization, module decoupling, and sustainable front-end evolution.
●I ship improvements, fixes, and features in incremental cycles with product and QA, prioritizing production stability and REST API integration.

Full Stack Consultant (freelance)
July 2025 - Present
●I have published and maintain 10+ apps on the App Store and Play Store (Android and iOS): store requirements, fixes, SDK compliance, and ongoing production evolution.
●I implement in-app payments with Apple IAP and Google Play Billing, including setup, testing, and integration with subscription and purchase backends.
●I build new features and integrations across web, mobile (React Native), and API (NestJS/Node, REST/GraphQL), with end-to-end ownership on deliveries.

Frontend Mobile Developer
July 2023 - January 2025 (outsourcing · Brainny)
●I worked on international Android/iOS apps in React Native on a 9+ year legacy codebase, balancing evolution and stability.
●I recovered and republished an obsolete app (SDK 27): updated dependencies, visual identity, and UX until it met current store requirements.
●I delivered usability, responsiveness, and compliance improvements for recent SDK versions in production.

Frontend Developer
December 2021 - February 2025
●I delivered 15+ web and mobile projects, including products with ~3k daily visits, focusing on performance, scalability, and stability.
●I built and maintained Full Stack solutions (React, Next.js, React Native, NestJS) with primary ownership on front-end and REST/GraphQL integrations.
●I published and maintained store apps, supported international clients on ongoing maintenance, and worked in Scrum squads with iterative delivery.

MBA in Frontend Engineering
March 2025 - March 2026
●Hands-on specialization in front-end engineering, focusing on software architecture, performance, testing, accessibility, and API integration.
●Proficiency in technologies such as React, Next.js, TypeScript, Angular, Docker, AWS, and Flutter.
●Project development using agile methodologies, continuous integration, and cloud deployment.
●Creation of complete applications, from design system to cloud publishing, leveraging microfrontends and modern DevOps practices.

Technology in Analysis and Systems Development
March 2020 - December 2023
●I developed and improved my skills in Full Stack software development, covering Backend, Web, Mobile, UI/UX.
●🥇 December 2023 - First place overall at the Hackathon with the project Neto Virtual.
●🥈 December 2022 - Second place overall at the Hackathon with the project Easily.
●💼 December 2021 - I was invited to intern at Brainny by the company's CTO, who was also my professor and coordinator.

Computer Engineering
March 2019 - December 2021
●Focus on algorithms, logic, and data structures.
●I decided to transfer my focus to the Systems Analysis and Development course at Senac to better align my education with my work opportunities.
MindEase – Web
MindEase – App
Farm Assist App
Farm Assist Web
Farm Assist API
Bytebank – Landing page
Bytebank – Web
Microfrontends (Single SPA) + investments module
Bytebank – App
News Hub

My first contact with programming was in 2015, with a Minecraft server that reached 90 simultaneous players. After high school, I looked for a field that combined creativity and impact — in 2019 I found that in technology. Since then I've worked on real products: from consultancy with 15+ projects and ~3k daily visits to corporate ERP and international mobile apps. Today I balance production delivery with continuous learning (FIAP MBA in Frontend Engineering), focusing on front-end architecture, performance, accessibility, and user experience.