# Carlos Siqueira

Carlos Siqueira is a remote worker on Himalayas, Founder and Full Stack Developer at GTI – Gestão Turismo Inteligente, based in Brazil.

Source: https://himalayas.app/@carlossiqueira

```text
Full Stack Developer at GTI, building a travel-agency SaaS with bookings, payments, and trip finance.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | Brazil |
| Authorized to work in | Brazil |
| Salary expectations | 20k+ BRL |
| Job categories | Full Stack Developer, Backend Engineer, Front End Developer |
| Skills | Fullstack Development, NodeJS, TypeScript, React, PHP, ERP Accounting, Multi Tenant Environments, Bank Slip Management, Fiscal Tax Compliance Automation (Brazil), Bank Integration, ERP Integration, Pix Payments, Payment Processing, LLM Based Document Extraction, AI Agents |
| Website | https://gestaoturismointeligente.com.br |
| LinkedIn | https://linkedin.com/in/carlos-siqueira-614b07192 |
| GitHub | https://github.com/CarlosSiiqueira |

## About

```text
At GTI – Gestão Turismo Inteligente, I’m building a SaaS for tour and travel agencies, covering bookings, payments, and trip finance. I’ve developed its Node.js and TypeScript API, React admin panel, and websites.

At Athenas Software, I worked on a multi-tenant accounting ERP, including boleto processing, Brazilian tax-filing bots, and bank and ERP integrations. I also built almost single-handedly Gladius, a real-time chat MVP, and contributed to a multichannel customer support product and an LLM-based document extraction service.
```

## Experience

### Founder and Full Stack Developer (current)

GTI – Gestão Turismo Inteligente. Oct 2026 - Present

```text
Founded and developed a SaaS for tour and travel agencies, including booking management, payments, and finance features. Built the API with Node.js and TypeScript, and the admin panel with React.
```

Skills: NodeJS, TypeScript, Express, Prisma, PostgreSQL, Kafka, Docker, React, Vite, Chakra-UI, React-Query, React-Hook-Form, Jest, Testing-Library, Bitbucket-Pipelines, Jenkins, Nginx, Angular, Tailwind, Framer-Motion

### Senior Full Stack Developer

Athenas Software. Nov 2019 - Nov 2026

```text
Developed and maintained a multi-tenant accounting ERP with PHP, CakePHP, Vue 3, and Node.js services. Implemented bank slip processing, tax-filing bots, integrations, and a multichannel messenger.
```

Skills: PHP, Slim, Firebird, Redis, CakePHP, JavaScript, Vue3, NodeJS, TypeScript, Sequelize, MySQL, Socket.IO, Bull, Docker, Gitlab-CI, PHPUnit, PHPStan, AI, Claude

## Tech stack

- Amazon S3
- ESLint
- Amazon CloudFront
- Jenkins
- GitLab CI
- Bitbucket Pipelines
- MySQL
- PostgreSQL
- Firebird
- WooCommerce
- Node.js
- NestJS
- Tailwind CSS
- Redis
- Jest
- React
- Python
- PHP
- Kafka
- Amazon SQS
- Slim
- FastAPI
- PM2
- Sequelize
- Prisma
- Socket.IO
- TypeScript
- PHPUnit
- SendGrid
- Amazon SES
- Chakra UI
- Docker
- NGINX
- CakePHP
- Shadcn/ui
- Playwright
- TanStack Query
- Vite
- Vitest
- Zod
- Pinia
- React Hook Form
- Claude Code
- Express
- AWS
- Angular

To contact Carlos, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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