arthur cunha_

Open to a chat

hi, I'm

Arthur
Cunha.

<Full-stack software engineer />

I build enterprise systems in C# (.NET) and React for a multinational, on a team spread across several countries. Before that, I looked after a hotel checkout serving 4,000+ people per minute. I like code that ships and keeps working.

Download resumeGet in touch →
zsh — arthur@rio

~ $ whoami

arthur cunha, full-stack engineer

~ $ cat stack.txt

c# · .net · java · node · react

~ $ uptime

4k+ req/min on checkout, still up

~ $

click the card to flip through ↺01 / 04 — terminal
C#.NET 8ASP.NETJavaNode.jsNestJSREST APIsMicroservicesBFFReactNext.jsTypeScriptJavaScriptViteTailwind CSSHTML5CSS3MySQLPostgreSQLMongoDBSQLORMMigrationsAzure DevOpsCI/CDAWS LambdaAWS EC2DockerGitGitHubLinuxxUnitUnit testsIntegration testsStatic analysisCode reviewSCRUMJiraClaude CodeMCP serversAI agentsSubagentsHooksPrompt engineeringLLMs

01 — about

About me.

← the short version

I'm a full-stack software engineer. On the backend I work with C# (.NET), Java and Node.js, and on the frontend with React and TypeScript. I like owning a problem end to end, from the API to the screen.

On the backend, I build REST APIs and microservices in .NET 8, Java and Node.js (NestJS), with BFFs, multi-tenant architecture and relational databases versioned through ORM and migrations. I've maintained an API serving 4,000+ users per minute, where availability and performance aren't optional. On the frontend, React and Next.js talking straight to those services.

I also own the path to production: unit and integration tests with xUnit, CI/CD pipelines in Azure DevOps, Docker and AWS (Lambda and EC2). And I use AI as an engineering tool: Claude Code with MCP servers, hooks and subagents wired to the repo, to implement, refactor and review with real code context. I write code thinking about whoever reads it next.

02 — stacks

Technologies.

← what's in my package.json (and .csproj)

What I actually use, grouped by layer.

Back-end

09
  • C#
  • .NET 8
  • ASP.NET
  • Java
  • Node.js
  • NestJS
  • REST APIs
  • Microservices
  • BFF

Front-end

08
  • React
  • Next.js
  • TypeScript
  • JavaScript
  • Vite
  • Tailwind CSS
  • HTML5
  • CSS3

Databases

06
  • MySQL
  • PostgreSQL
  • MongoDB
  • SQL
  • ORM
  • Migrations

Cloud & DevOps

08
  • Azure DevOps
  • CI/CD
  • AWS Lambda
  • AWS EC2
  • Docker
  • Git
  • GitHub
  • Linux

Testing & quality

07
  • xUnit
  • Unit tests
  • Integration tests
  • Static analysis
  • Code review
  • SCRUM
  • Jira

AI-assisted development

07
  • Claude Code
  • MCP servers
  • AI agents
  • Subagents
  • Hooks
  • Prompt engineering
  • LLMs
Portfólio Sophia LinoIpathermRevista RepetecoPortfólio PessoalDTI DigitalUtrip

03 — experience

Experience.

← my career's git log

Where I've worked and what I shipped there.

  1. commit 1648553HEAD → currentAug. 2026 to now

    DTI Digital

    Full-Stack Software Engineer

    Consulting on enterprise systems for a multinational in the refractories industry, with C# (.NET 8) on the backend and React on the frontend.

    • Maintenance and support of a global inventory control system in the refractories industry, used by sites in several countries: fixes, improvements and new features across the .NET 8 backend and the React frontend.
    • Daily work in a global team, with leads in other countries and time zones: code review, technical alignment and coordinated releases.
    • Set up and maintain the CI/CD pipelines in Azure DevOps, tuning build and release across environments.
    • Unit, automated and integration tests with xUnit, cutting regressions in critical systems.
    • Claude Code every day, with CLAUDE.md, slash commands, hooks, subagents and MCP servers connected to the repo.
    • Automated checks before every pull request (lint, static analysis, build and tests), reducing rework in code review.

  2. commit dd3efa3Aug. 2024 to Jul. 2026

    Utrip

    Software Engineer

    The company's booking engine, on a multi-tenant architecture, with Java, Node.js (NestJS) and React.

    • Microservices from the BFF to the full migration of the quotation and booking services, with Java and Node.js (NestJS).
    • Maintained and optimized the hotel checkout API, used by 4,000+ users per minute, keeping it highly available.
    • Checkout frontend in React and Next.js (cart, rooms and rates), integrated with the microservices and external systems (PMS).
    • Modeled and versioned the MySQL schema with ORM and migrations, keeping it consistent across environments.
    • Dashboards with React, Vite and Tailwind CSS.

04 — projects

Projects.

← they're live, go click

Sites I built that are live. Go open them.

live01/04

Portfólio Sophia Lino

Portfolio for concert photography, design and communication. A photo pile you flip through, a grid gallery, draggable posters, and a Fly deploy with Docker and nginx.

  • React
  • TypeScript
  • Vite
  • Tailwind CSS
  • Docker
visit site ↗
live02/04

Ipatherm

Corporate website for a refrigeration company. I built the whole front-end, responsive and lightweight.

  • Next.js
  • React
  • TypeScript
visit site ↗
~ $ open .PP
live04/04

Portfólio Pessoal

This site. Bilingual (PT/EN), in Next.js, TypeScript and Tailwind CSS, auto-deployed to Fly via GitHub Actions.

  • Next.js
  • TypeScript
  • Tailwind CSS
visit site ↗

05 — contact

let's build something together?

arthurdaconceicaocunha@gmail.com

↑ I answer fast

Send emailMessage on WhatsApp
e-mail
arthurdaconceicaocunha@gmail.com
phone
+55 21 97500-1991
Based in
Rio de Janeiro
Status
Open to a chat