Mario Leiva Torres
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Mario Leiva Torres Email & Phone Number

Web Designer & Developer | UX/UI Enthusiast | Skilled in Frontend Development & SEO Optimization at COS Global Services
Location: Gavà, Catalonia, Spain 4 work roles 3 schools
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✓ Verified August 2026 3 data sources Profile completeness 86%

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Current company
COS Global Services
Role
Web Designer & Developer | UX/UI Enthusiast | Skilled in Frontend Development & SEO Optimization
Location
Gavà, Catalonia, Spain
Company size
320 employees

Who is Mario Leiva Torres? Overview

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Mario Leiva Torres is listed as Web Designer & Developer | UX/UI Enthusiast | Skilled in Frontend Development & SEO Optimization at COS Global Services, a with 320 employees, based in Gavà, Catalonia, Spain. AeroLeads shows a matched LinkedIn profile for Mario Leiva Torres.

Mario Leiva Torres previously worked as Operador de sistemas informáticos - Aeropuerto El Prat BCN at Cos Global Services and Full-stack Developer at Brainworks Solutions S.L.. Mario Leiva Torres holds Consultor Sap Abap from Cloud Formación Tic.

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Email format at COS Global Services

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COS Global Services

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Profile bio

About Mario Leiva Torres

Junior Full Stock Developer💻, studying Web Application Development. I have a passion for designing and developing both web and desktop/mobile applications. I consider myself a highly creative and organized. Currently, I am working on an interactive website showcasing Pokémon cards. Users can create, edit, and delete their own cards. I am developing it using HTML, CSS, JS, PHP, and SQL. Additionally, I am creating a mobile application with similar features, and a desktop application for user/card management.

Current workplace

Mario Leiva Torres's current company

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COS Global Services
Cos Global Services
Web Designer & Developer | UX/UI Enthusiast | Skilled in Frontend Development & SEO Optimization
tres cantos, madrid, spain
Website
cosglobalservices.com
Employees
320
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4 roles

Mario Leiva Torres work experience

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Operador De Sistemas Informáticos - Aeropuerto El Prat Bcn

Current
Cos Global Services

Barcelona, Cataluña, España

Gestión de Usuarios: Configuración y administración de roles y permisos para más de 300 usuarios en sistemas Windows y Linux, garantizando la seguridad y el acceso basado en roles (RBAC).Copias de Seguridad: Implementación y mantenimiento de políticas de backup diarias utilizando herramientas como Data Protector, con una tasa de recuperación de datos del 99.5%.Monitorización: Supervisión de la infraestructura de TI utilizando Zabbix y Venus, resolviendo problemas técnicos críticos con un tiempo medio de respuesta del 25% más rápido que el estándar.Administración de Windows Server: Configuración y administración de servidores Windows, gestionando servicios como Active Directory y aplicando parches de seguridad mensualmente.

Jan 2024 - Present

Full-Stack Developer

Brainworks Solutions S.L.

Barcelona, Cataluña, España

Desarrollo de Software: Desarrollo de aplicaciones empresariales utilizando C# y .NET Core, con integración de bases de datos SQL Server mediante Entity Framework.Revisión de código y de versiones: Realización de revisiones de código colaborativas mediante Git, asegurando un control de versiones efectivo y prácticas de desarrollo colaborativo.Optimización de BBDD: Optimización de consultas en SQL y refactorización de lógica de negocio, mejorando la eficiencia del software en un 20% respecto al año anterior.

Jun 2023 - Sep 2023

Desarrollador Web

Escola Joan Salamero

Gavà, Cataluña, España

Desarrollo de Frontend: Diseño y desarrollo completo de un sitio web responsive utilizando HTML5, CSS3, JavaScript, y Bootstrap, garantizando la compatibilidad entre navegadores y dispositivos.Gestión de Contenido: Integración de un CMS (WordPress) para la fácil administración del contenido por parte del cliente, optimizando el SEO del sitio mediante prácticas de on-page SEO.Diseño UX/UI: Aplicación de principios de UX/UI para mejorar la experiencia del usuario en el sitio, incrementando la tasa de conversión y el tiempo promedio en página en un 25%.Optimización: Implementación de técnicas de optimización de carga como lazy loading, minificación de archivos CSS/JS y caching para mejorar la velocidad de la página.

Feb 2021 - Jun 2021
Team & coworkers

Colleagues at COS Global Services

Other employees you can reach at cosglobalservices.com. View company contacts for 320 employees →

JP Juan Pablo Pineda Sanchez Juan Pablo Pineda Sanchez Colleague at Cos Global ServicesTorrejón De Ardoz, Community Of Madrid, Spain View → ME María Elena Barrera González María Elena Barrera González Colleague at Cos Global ServicesSpain View → ÁC Ángel Cristo González Tejera Ángel Cristo González Tejera Colleague at Cos Global ServicesGreater Santa Cruz De Tenerife Metropolitan Area, Spain View → JL José Luis García Suárez José Luis García Suárez Colleague at Cos Global ServicesRioseco, Principality Of Asturias, Spain View → OD Oscar Dario Szpolinetti Oscar Dario Szpolinetti Colleague at Cos Global ServicesArgentina View → NG Nacho Gómez Buenaventura Nacho Gómez Buenaventura Colleague at Cos Global ServicesMahón, Balearic Islands, Spain View → JA José Anchante Valencia José Anchante Valencia Colleague at Cos Global ServicesMadrid, Community Of Madrid, Spain View → JM José Maria Rodríguez José Maria Rodríguez Colleague at Cos Global ServicesMadrid, Community Of Madrid, Spain View → AS Antonio Señor Antonio Señor Colleague at Cos Global ServicesGreater Madrid Metropolitan Area, Spain View → JR Julio Romero Julio Romero Colleague at Cos Global ServicesArgentina View →
3 education records

Mario Leiva Torres education

Consultor Sap Abap

Cloud Formación Tic
FAQ

Frequently asked questions about Mario Leiva Torres

Quick answers generated from the profile data available on this page.

What company does Mario Leiva Torres work for?

Mario Leiva Torres works for COS Global Services.

What is Mario Leiva Torres's role at COS Global Services?

Mario Leiva Torres is listed as Web Designer & Developer | UX/UI Enthusiast | Skilled in Frontend Development & SEO Optimization at COS Global Services.

Where is Mario Leiva Torres based?

Mario Leiva Torres is based in Gavà, Catalonia, Spain while working with COS Global Services.

What companies has Mario Leiva Torres worked for?

Mario Leiva Torres has worked for Cos Global Services, Brainworks Solutions S.L., and Escola Joan Salamero.

Who are Mario Leiva Torres's colleagues at COS Global Services?

Mario Leiva Torres's colleagues at COS Global Services include Juan Pablo Pineda Sanchez, María Elena Barrera González, Ángel Cristo González Tejera, José Luis García Suárez, and Oscar Dario Szpolinetti.

How can I contact Mario Leiva Torres?

You can use AeroLeads to view verified contact signals for Mario Leiva Torres at COS Global Services, including work email, phone, and LinkedIn data when available.

What schools did Mario Leiva Torres attend?

Mario Leiva Torres holds Consultor Sap Abap from Cloud Formación Tic.

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