Open to opportunities

Leonardo Nicolai

@nicolaileo

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Fullstack Engineer | React, Node.js, TypeScript, Golang | Delivering scalable, high-impact products

Brazil

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What I'm looking for

I'm seeking a role building performant, scalable web applications where architecture and product impact matter.

At AtlasGovernance, I lead six developers and QAs delivering a shareholder-management platform that handles datasets of up to 500K shareholders. I run discovery, estimates, sprint planning, and delivery while building scalable product features.

I've cut a Vite application's production bundle by 50% and built a PDF-to-assembly feature that reduced complex shareholder assembly registration time by up to 70%. I also delivered production AI integrations for translation, transcription, and content summarization.

Across Porter Group, FluxBeer, Sanar, Sponte, and Codengage, I've built real-time interfaces, GraphQL and REST API integrations, reusable component libraries, dashboards, PWAs, and tested full-stack applications.

Experience

Work history, roles, and key accomplishments

Current

Technical Lead

Current

AtlasGovernance

Jun 2022 - Present (4 years 2 months)

Led a team of 6 developers and QAs, running discovery sessions, technical estimates, and sprint planning for a shareholder-management platform. Cut Vite application bundle size by 50% and built a PDF-to-assembly generation feature, reducing registration time by up to 70%.

React TypeScript Vite AI Integration Team Leadership

Software Engineer

Porter Group

Nov 2020 - Jun 2022 (1 year 7 months)

Maintained a real-time WebSocket integration for a home security system used by 100+ concurrent call-center agents. Helped define new feature architecture and built a UI components library adopted across the project.

WebSockets React Component Libraries Architecture Design

Software Engineer

FluxBeer

Aug 2020 - Nov 2020 (3 months)

Designed and implemented intuitive dashboards for machine monitoring and control. Integrated real-time data visualization and optimized UI components for performance and scalability.

React Data Visualization Performance Optimization

Software Engineer

Sanar

Apr 2020 - Aug 2020 (4 months)

Defined and set up the initial tech stack for the project. Developed and integrated CRUD operations with GraphQL APIs and enabled seamless handling of media uploads and management.

GraphQL CRUD Media Management

Software Engineer

Sponte

Feb 2019 - Apr 2020 (1 year 2 months)

Contributed to a component library standardizing the UI. Developed and integrated features with backend APIs and ensured code quality through integration testing.

React Component Libraries Integration Testing

Intern

Codengage

Oct 2018 - Feb 2019 (4 months)

Helped build and standardize a PWA UI. Added a new GraphQL integration to an API and wrote unit and integration tests.

PWA GraphQL Testing

Education

Degrees, certifications, and relevant coursework

Universidade Tecnológica Federal do Paraná

Bachelor, Software Engineering

Activities and societies: Junior Company Project

Participated in a Junior Company Project as part of the course curriculum, contributing to real-world software development, project management, and team collaboration.