Rafael Sellés Vizcaíno

I am a backend developer with extensive experience working with Go, Ruby, and PHP, specializing in web services and API integrations. I love a challenge and I enjoy testing new technologies.


Experience

Backend Developer

As part of the Governance team, I focus on enhancing security for drivers and riders while ensuring high service quality.

Previously, I led the social authentication initiative in the Rider team, streamlining the app's sign-in process with social media login options, improving both user experience and security while reducing SMS verification costs.

In the Payments team, I contributed to the PSD2 migration, ensuring compliance with EU standards. I also collaborated with the Fraud team to enhance detection mechanisms and optimize payment workflows.

Remotely for Madrid, SPAIN
2020 - Present

Senior PHP Developer

Worked with the Supercreators team to modernize B2B self-service ticketing tools, significantly enhancing user experience and business functionality.

Led the migration of a critical legacy service that accounted for over 40% of the company’s fee income, ensuring minimal disruption during the transition.

Remotely for San Francisco, UNITED STATES
2020 - 2020

Senior Backend Developer

Developed custom integrations with third-party platforms as part of the Integrations Team.

Optimized the property management system, reducing outdated occupancies and enhancing acquisition, resulting in higher conversion rates and reduced manual workload for local teams.

Led public API development, enabling seamless property management across partner platforms.

Remotely for Madrid, SPAIN
2019 - 2020

Senior PHP Developer

Contributed to defining technical workflows and building APIs following RESTful architecture, using Test-Driven Development (TDD) and Continuous Integration (CI).

Led the migration of legacy APIs by eliminating Google App Engine dependencies and deploying Kubernetes infrastructure, enhancing scalability and environment management.

Played a key role in a startup environment, collaborating with a team of 20+ developers to deliver frequent releases for web, iOS, and Android platforms.

Remotely for Genk, BELGIUM
2016 - 2018

Senior Web Developer

Developed new features for Embarcadero Developer Network, improving the overall experience for developers using core Embarcadero products such as RAD Studio.

Led the integration of services within the Community, a social network for developers, by migrating legacy databases and building robust REST APIs.

Remotely for San Francisco, UNITED STATES
2013 - 2016

Web Developer

Managed a 24x7 SMS platform with integrations from multiple providers, delivering scalable and cost-effective marketing solutions for a wide range of clients.

Developed and deployed SMS-based services such as live chats, quizzes, and real-time alerts for TV networks, enhancing viewer engagement.

Created multi-channel marketing tools leveraging SMS, email, and mobile applications to offer comprehensive and targeted communication strategies.

Alicante offices, SPAIN
2008 - 2013

Junior Web Developer

Provided web consulting, management, and support for small to medium-sized businesses with their online presence.

Contributed to the successful execution of various web projects, enhancing digital communication strategies for clients.

Led new team members training on company methodologies, ensuring smooth onboarding and alignment with best practices.

Alicante offices, SPAIN
2007 - 2008

Web Developer Intern

Assisted in developing company-specific solutions during the final year of university.

Gained experience in web consulting and internal projects

Mentored peers during their internships, providing guidance and support.

Alicante offices, SPAIN
2006 - 2007

Education

University of Alicante

Bachelor's Degree in Computer Engineering
2003 - 2007

Skills

Programming Languages & Tools