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Available for projects · Maceió, Brazil
Tech Lead & Software Engineer

Jefferson
Bruno

Software Engineer with 15+ years of experience building digital solutions and solving complex problems. Specialist in software architecture, focused on scalability, performance and delivering real value.

15+
Years of exp.
200+
Projects
20+
Certifications
jefferson-bruno — zsh
React.js Next.js TypeScript React Native GraphQL Apollo Design Systems Frontend Architecture Tech Lead Performance Acessibilidade SSR / SSG React.js Next.js TypeScript React Native GraphQL Apollo Design Systems Frontend Architecture Tech Lead Performance Acessibilidade SSR / SSG

Stack & expertise.

Specialized in the React ecosystem focused on scalable architecture, performance and code quality.

⚛️

Front-end

React.js Next.js TypeScript JavaScript CSS HTML5
📱

Mobile

React Native Expo Navigation Animations
🔗

APIs & Data

GraphQL Apollo Server Apollo Client REST
🏗️

Architecture

Design Systems SSR / SSG Microfrontend Monorepo

Quality

React Aria A11y Performance Code Review Testing
👥

Leadership

Tech Lead Mentoria Planejamento Agile
React / Next.js99%
TypeScript95%
GraphQL / Apollo90%
React Native88%
Web388%
Blockchain88%
Frontend Architecture94%
Design Systems92%
Performance & A11y90%
Tech Leadership87%
Node.js90%

Professional experience.

15+ years building impactful digital products, from code to team leadership.

Specialist Software Engineer
Petrus Software · Full-time

Development of solutions for the Web3 and blockchain ecosystem. Integration with smart contracts, DeFi protocols and decentralized infrastructure. Focused on interfaces and systems that connect users to the crypto universe securely and with high performance.

Web3 Blockchain Ethereum Smart Contracts DeFi Solidity Ethers.js Wallet Connect NFT React TypeScript
Tech Lead — Especialista Front-End
Kirvano · Brasília Region

Technical leadership of teams in creating innovative, high-quality interfaces. Responsible for software architecture, standards definition, code review and developer mentoring. Collaboration with designers and product managers to transform requirements into functional and scalable solutions.

React TypeScript CSS Design System Tech Lead Acessibilidade Performance
Tech Lead — Especialista Front-End
Paschoalotto · Full-time

Leading the implementation of microfrontends (React, GraphQL, XState, Material UI) and BFFs (Node/Koa, GraphQL). Management of monorepos, squads and private NPM packages. Participation in POCs for new technology evaluation and code review of critical deliveries.

React GraphQL XState Material UI Node.js Microfrontend Monorepo
Specialist Front-End Engineer
AGL Solutions · Full-time

Rebuilding a web CRM for the Paschoalotto client. Responsible for best practices, code refactoring and maintenance. Implementation of Clean Code, mobile first, BEM/Sass, linters (ESLint, Prettier, Husky) and frontend documentation. Promoted to Tech Lead at the end of the project.

TypeScript Design System Sass / BEM ESLint Clean Code Mobile First
Designer / Desenvolvedor Full Stack
Instituto Diogo Melo · Cuiabá, MT

Full system development leadership: sales site, post-sale, financial dashboard, student area, help desk and chatbot automations. Responsible for the complete flow of digital product launches.

React Node.js Full Stack UX/UI Chatbot Dashboard
Designer / Desenvolvedor Full Stack Sênior
Tribunal Regional do Trabalho 23ª Região · Cuiabá, MT

Development of internal systems and UX improvements on TRT23 portals. Complete implementation of Rádio TRTFM — radio stream infrastructure and software (web + FM) still in use today. JanelaTRT project awarded at CONBRASCOM.

Full Stack Design System TypeScript CMS UX/UI Radio Stream
Designer / Desenvolvedor Full Stack
Studio DeBug · Freelance · Remoto

Freelance web development and design projects, serving clients across different segments with customized full stack solutions.

React Full Stack UI Design
Desenvolvedor Web · UX/UI Designer
Criari Agency · Cuiabá, MT

Web interface development and design for agency clients, focused on front-end and user experience.

Front-End UX/UI HTML5 CSS3 JavaScript
Front-End · Design · Freelance
JBRUNNO.COM · Studio independente · Cuiabá, MT

Career start with independent design and front-end development projects, including Rádios Pop Hitz and Projeto Comando Estelar.

HTML CSS JavaScript Design

Featured projects.

See all at jbruno.dev →
🏗️ ● prod

Design System — Kirvano

Reusable component library built from scratch. Living documentation, design tokens and integrated accessibility via React Aria.

React TypeScript React Aria Storybook
See project →
📱 ● prod

App Mobile — React Native

Full mobile app with complex navigation, smooth animations and GraphQL integration. Optimized performance for Android and iOS.

React Native Expo GraphQL Apollo
See project →
⟳ building

jbruno.dev — Portfólio pessoal

Personal website with tech blog, projects and case studies. Next.js SSG, automated deploy and Lighthouse 100.

Next.js TypeScript SSG MDX
jbruno.dev →
🔗 ◐ parcial

API GraphQL — Apollo Server

GraphQL backend with Apollo Server, complex resolvers, JWT authentication and database integration. Automatic documentation via schema introspection.

Apollo Server GraphQL Node.js TypeScript
See project →

Continuous learning.

Solid degree combined with practical certifications in the main market technologies.

🎓
Bachelor's Degree — Computer Science
UFMT — Universidade Federal de Mato Grosso
Degree
📊
GraphQL e Apollo Server + Apollo Client
Udemy · fev. 2022
🚀
Ignite — Trilha React Native
Rocketseat · dez. 2021
⚛️
Ignite — Trilha ReactJS
Rocketseat · dez. 2021
Next.js & React — Curso Completo
COD3R · dez. 2021
📘
JavaScript e TypeScript — Básico ao Avançado
Udemy
🔷
React.js e Next.js — Intermediário e Avançado
Udemy

Have a project
in mind?

Open to freelance projects, technical consulting and leadership opportunities. Send me a message.

Talk on LinkedIn → ⬇ Download CV