# Heriberto Ramirez Castellanos

Heriberto Ramirez Castellanos is a remote worker on Himalayas, Database Developer & Technical Project Manager at ARRA IN S.A.S., based in United States.

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

```text
I build high-volume transactional databases and lead critical backend delivery.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | United States |
| Authorized to work in | United States |
| Salary expectations | 48k+ USD |
| Job categories | Database Developer, Backend Engineer, Technical Project Manager, Database Architect |
| Skills | PostgreSQL, MySQL, Oracle, PL PgSQL, PHP, NodeJS, React, Vue.Js, HTML, CSS, Agile, Scrum, Kanban, Gitlab, Jira, Trello, Transactional Systems, Database Architecture, Refactoring, Database Migration, Backend Development, Project Management |
| LinkedIn | https://linkedin.com/in/ing-heriberto-ramirez-castellanos |

## What I'm looking for

```text
I'm looking to lead or contribute to critical backend and database initiatives, especially high-volume transactional platforms where I can improve performance, reliability, migrations, and delivery outcomes.
```

## About

```text
I've built and optimized transactional database architectures for ARRA IN S.A.S. clients processing more than 1 million transactions a day, protecting availability and operational performance.

I lead end-to-end software projects, from planning through client delivery, and have managed multidisciplinary teams of up to eight developers. I also step in during production outages and failed deployments to help maintain business continuity.

At CONEXRED S.A.S. (Puntored), I managed implementations and operational continuity for a payments, collections, and service-payment platform. I improved high-load PostgreSQL and MySQL data models and contributed to the Sales Portal and Administrative Platform.

As a co-founder of INVERED S.A.S., I designed web-based management, control, and audit systems and built PHP backends backed by PostgreSQL, Oracle, and MySQL. My work spans database migrations, legacy refactoring, PL/pgSQL development, and transactional business models using PHP and Node.js.
```

## Experience

### Database Developer & Technical Project Manager

ARRA IN S.A.S.. Jan 2017 - Apr 2026

```text
Led architecture and optimization of PostgreSQL data models for clients with over 1M daily transactions, ensuring availability and performance. Managed end-to-end development projects, leading teams of up to 8 developers and implementing PL/pgSQL functions, views, indexes, triggers, and stored procedures.
```

Skills: PostgreSQL, PL-PgSQL, PHP, NodeJS, Database-Architecture, Performance-Optimization, Project-Management, Agile, Scrum, Kanban, Gitlab, Jira, Trello

### Technical Project Manager & Database Developer

CONEXRED S.A.S. (Puntored). Jan 2016 - Dec 2017

```text
Directed planning and management of projects for new implementations and operational continuity of the Puntored transactional platform. Supervised development and optimization of PostgreSQL and MySQL data models, coordinating teams of up to 5 people per work cell.
```

Skills: PostgreSQL, MySQL, Database-Optimization, Project-Management, Team-Coordination, Transactional-Systems

### Socio Fundador, Backend Developer & Database Architect

INVERED S.A.S.. Jan 2008 - Dec 2016

```text
Co-founded the company and led design, analysis, and development of information systems for management, administration, control, and auditing in web environments. Implemented transactional data models in PostgreSQL, Oracle, and MySQL, and developed PHP backends for administrative and auditing applications.
```

Skills: PostgreSQL, Oracle, MySQL, PHP, Backend-Development, Database-Architecture, Web-Development, Project-Management

## Education

### EUDE Business School

MBA, Project Management

```text
MBA with specialization in Project Management (PMP) from EUDE Business School, completed in 2018.
```

### Fundación Universitaria San Martín

Ingeniero de Sistemas, Systems Engineering. 1998 - 2005

```text
Bachelor's degree in Systems Engineering from Fundación Universitaria San Martín, completed in 2005.
```

### Corporación de Educación Superior del Trabajo

Técnico Profesional en Ingeniería de Sistemas, Systems Engineering. 1993 - 1997

```text
Technical professional degree in Systems Engineering from Corporación de Educación Superior del Trabajo, completed in 1997.
```

## Tech stack

- GitLab
- MySQL
- PostgreSQL
- Oracle
- Node.js
- Jira
- React
- Vue.js
- PHP
- Trello

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

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