Hi, I'm

Davi Cruz.

Full Stack Developer building scalable web applications, APIs and business-critical systems.

6+ years of experience with React, Next.js, Java, Spring Boot and Node.js.

About

Building software for real-world problems

I'm a Full Stack Developer with 6+ years of experience building and maintaining web applications, APIs and business-critical systems.

My experience spans frontend and backend development, system modernization, integrations and enterprise software.

I work mainly with React, Next.js, TypeScript, Java, Spring Boot, Node.js, NestJS and PHP/Laravel.

I enjoy solving complex business problems, improving existing systems and building software that is maintainable and useful in real-world environments.

Focus

Enterprise systems
APIs and integrations
Legacy modernization
Remote & international opportunities

Experience

Full Stack Developer @ Unimed Teresina

Aug 2023 - May 2026

Worked on enterprise healthcare systems, APIs, integrations and modernization of legacy applications.

▸Developed and maintained frontend and backend applications used in healthcare operations.
▸Worked with React, Next.js, TypeScript, Java, Spring Boot, PHP and enterprise integrations.
▸Worked with Oracle, PostgreSQL and SQL Server environments.
▸Participated in modernization and maintenance of legacy systems.
▸Worked on performance improvements, APIs and complex business rules.
▸Participated in technical decisions, code reviews and collaboration with developers from different experience levels.

ReactNext.jsTypeScriptJavaSpring BootPHPOraclePostgreSQLDocker

Projects

Selected work

Leadflow

In development

A multi-tenant platform for capturing, qualifying and managing leads through customizable public flows and forms.

Next.jsTypeScriptNestJSPostgreSQLPrismaDocker

Church System

In development

A multi-tenant platform for managing church members, branches, groups, courses, discipleship and communication.

JavaSpring BootNext.jsTypeScriptPostgreSQLDocker

Realtime Chat

A real-time chat application built to explore WebSockets, event-driven communication and modern full-stack architecture.

NestJSWebSocketsNext.jsTypeScript

Stock Control API

REST API for inventory and stock management.

JavaSpring BootJPAHibernate

Skills

Technologies and practices

Frontend

ReactNext.jsTypeScriptTailwind CSS

Backend

JavaSpring BootNode.jsNestJSPHPLaravel

Databases

PostgreSQLOracleSQL ServerMongoDBRedis

Infrastructure

DockerNginxCI/CDLinux

Architecture

REST APIsWebSocketsMulti-tenant architecturesMicroservicesLegacy system modernization

Education

Academic background

Bachelor's Degree in Computer Science

Universidade Estadual do Piauí - UESPI

2018 - 2023

Technical Degree in Web/Computer Systems

SENAI-PI

2016 - 2018

Postgraduate studies in Artificial Intelligence

In progress

2026 - Present

Contact

Let's build something together.

I'm open to remote Full Stack opportunities, freelance projects and international contracts.

LinkedIn GitHub Email