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Hi, I'm Raul A.R.

Computer Engineer and Full Stack Developer based in Barcelona, specializing in backend development and custom VoIP solutions.

💼 Currently building custom VoIp solutions at Nubelfon

Raul A.R.

About Me

I'm a Computer Engineer based in Barcelona, graduated from the Universitat Autònoma de Barcelona with a specialization in Computer Science.

My expertise lies in full-stack development, with a strong focus on backend systems, particularly using PHP with Laravel. I have experience in API integrations, database management, infrastructure deployment, and scripting automation.

Over the years, I have been involved in projects related to VoIP solutions, including automating phone calls for various use cases, real-time call monitoring with Asterisk, and developing platforms for enterprise clients to manage their telecommunication services.

In addition to backend development, I have experience with frontend technologies, system administration, and scripting. I enjoy working in small, collaborative teams where I can contribute to the entire development cycle, from architecture design to deployment and maintenance.

Outside of my professional work, I maintain a home lab environment where I develop projects like ECO2, a website that helped my team win a Hackathon. I also enjoy working on personal projects involving C++ for microcontrollers and Python for rapid prototyping.

Work Experience

Nubelfon Logo

Nubelfon - Full Stack Developer & Solutions Developer

2021 - Present

Key Achievements:

  • Led and developed enterprise VoIP solutions for government and corporate clients
  • Modernized legacy systems through:
    • Migration from legacy codebase to Laravel framework
    • Implementation of REST APIs for third-party integrations
    • Database schema optimization for improved performance
  • Architected 2 major platform upgrades enhancing scalability and maintainability
  • Developed automation scripts reducing repetitive tasks through queue workers

Core Responsibilities:

  • System integration with Asterisk PBX and VTiger CRM
  • Database design and optimization for high-volume call data management
  • Implementation of security features including Role-Based Access Control (RBAC)
  • Development of real-time monitoring dashboards and automated reporting systems
  • Creation of technical documentation and client onboarding materials
  • Implementation of unit testing for core platform functionalities

Notable Projects:

Automated Calling System

(2021-Present)

Government Telecom Monitoring Platform

(2022)

Client Services Portal

(2023-Present)
Hospital Bellvitge Logo

Hospital Universitario Bellvitge - Patient Care Assistant

2017 - 2021
  • Balanced full-time engineering studies with healthcare work
  • Provided critical support during COVID-19 pandemic surge

Technical Skills

Backend & Telecom

  • PHP/Laravel
  • MySQL Database
  • Voice APIs (Google/Amazon)
  • Asterisk PBX
  • REST API Development

Frontend & UI

  • HTML5/CSS3
  • JavaScript/jQuery
  • Bootstrap
  • Laravel Blade
  • Responsive Design

Others

  • Web Server Management
  • Bash Scripting
  • C++ (Microcontrollers)
  • Python (Fast Prototyping)
  • Git Version Control