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Reinier Laza Gómez
SysAdmin | DevOps | Web Dev | Mapping Tech

About

I am a COMPUTER ENGINEER with 5 years of specialized experience in Linux/Windows systems and server administration, web development, complex network infrastructure management, and corporate technical support. My professional career has allowed me to build a solid foundation as a SysAdmin, develop skills in DevOps principles, and acquire advanced abilities in web development. Focused on Frontend Web Development, I seek to apply my technical experience and specialized practice in a role that allows me to grow my knowledge in this area, as well as in DevOps and Backend. My approach is centered on the exhaustive analysis of complex problems to implement robust and efficient solutions, optimize technological processes, and provide effective solutions that positively impact business operations. I am comfortable working both in a team and independently, adapting to project needs and always maintaining a focus on continuous improvement.

Work Experience

Provincial Education Node - Guantánamo (Multiple Employment)
October 2023 – Present
IT Specialist C | SysAdmin & DevOps
At the Provincial Education Node - Guantánamo: • Management and administration of the provincial network infrastructure with over 6 professional servers (Linux/Windows) and more than 300 websites • Management of critical services: email (Postfix/IredMail, Zimbra), DNS, proxies (Squid), firewalls (pfSense, Iptables), Moodle, and video conferencing • Implementation and configuration of proactive monitoring systems with a focus on high availability and security • Development of security policies and automated backup procedures with NAS servers • Technical evaluation and consulting for the adoption of new technologies and network solutions • Specialized training for users and technical coordination with service providers
Highlights
  • Developed and maintained the interface for multiple educational sites using HTML5, CSS3, and JavaScript to ensure an interactive and accessible user experience.
  • Implemented dynamic functionalities and consumed client-side APIs with JavaScript, while exploring integration with React for interface modernization.
  • Performed backend administration for over 300 websites, ensuring their availability, performance, and security on Linux servers (Apache/Nginx).
  • Created Bash scripts to automate deployment and maintenance tasks for web applications and backend services like Moodle.
  • Managed and optimized mail server (Postfix) and proxy (Squid) configurations, directly impacting communication and access to web resources.
  • Deployed and configured monitoring systems (Nagios/Zabbix) to supervise both server infrastructure and web application performance, reducing fault detection time by 30%.
Municipal People's Power of Guantánamo (Multiple Employment)
October 2023 – Present
IT Specialist C | SysAdmin & DevOps
At the Municipal People's Power of Guantánamo: • Comprehensive administration of the municipal local area network (LAN) and management of internal servers • Maintenance of the municipal website and citizen service systems (WordPress/Joomla) • Specialized technical support for municipal employees and cybersecurity training
Highlights
  • Maintained and customized the municipal web portal developed in WordPress, applying frontend improvements with CSS3 and JavaScript.
  • Resolved incidents and provided backend technical support for content management systems (CMS), ensuring continuous operation.
  • Developed scripts to automate backups of website databases (MySQL).
  • Implemented a cybersecurity training program for employees, focused on protecting sensitive applications and data in the web environment.
  • Collaborated on the technical documentation of web projects, including flowcharts and user manuals for the developed functionalities.
Labiofam Guantánamo
January 2023 – October 2023
IT Specialist C | Head of Network Node
• Administration of Windows and Linux servers (Active Directory, DNS, DHCP) with management of the central network node • Management of virtualization infrastructure (VMware, Docker, Proxmox VE) and databases (MySQL, PostgreSQL, MariaDB) • Advanced network configuration and maintenance, system monitoring, and backup solutions
Highlights
  • Consolidated 3 physical servers through virtualization, optimizing resources and reducing costs.
  • Planned and responded to service interruptions and issues.
  • Carried out design processes at all levels including research, conceptualization, testing, and implementation.
  • Deployed a monitoring system, reducing downtime by 30% through early detection.
Guantánamo School Transportation
March 2022 – November 2022
Head of GPS Fleet Control
• Comprehensive management of GPS tracking platform with real-time vehicle monitoring • Establishment of an automated GPS database backup system • Data analysis and route optimization based on GPS information
Highlights
  • Optimized 5 school routes, resulting in 36% fuel savings.
  • Improved mileage report accuracy by 50%, optimizing maintenance control.
  • Automated consumption reports, detecting anomalies 40% faster.
  • Reduced unauthorized detours by 40% through systematic route verification.
GeoCuba Guantánamo
November 2013 – June 2015
Geodesy and Cartography Technician | IT Specialist
• Advanced use of GIS software (ArcGIS, QGIS) for digitization and processing of geographic data • Specialized equipment maintenance and comprehensive technical support
Highlights
  • Successfully digitized municipal historical maps, meeting established deadlines.
  • Optimized a script for GPS processing, reducing task time by 48%.
  • Developed an automated workflow for georeferencing, reducing the required time by 30%.
  • Managed 25 technical incidents per week, maintaining departmental productivity.

Projects

  • Provincial Network Infrastructure Optimization: Guantánamo Education Node
  • Backup Process Automation: Municipal People's Power
  • GPS Route Optimization System: School Transportation

Contact

Guantánamo, Guantánamo CU
*********
reinier.laza58@gmail.com
https://www.linkedin.com/in/reinierlz
LinkedIn
reinierlz
GitHub
Reyni94

Education

  • 2024

    University of Guantánamo, Cuba

    Computer Engineer

    Computer Engineering

    Courses
    • Thesis Project: "Proposal for Restructuring and Implementation of Improvements in the Network and Services of the Provincial Headquarters of the Communist Party of Cuba"
  • 2010

    Polytechnic #1 Julio Antonio Delgado Reyes, Guantánamo, Cuba

    Technician

    Geodesy and Cartography

Skills

Web Development & Programming Advanced
HTML5 CSS3 JavaScript (Web Layout and functional development) React (Basic - Actively developing) PHP (Intermediate) Node.js (Basic - Learning) WordPress Joomla (Installation, configuration, customization) Bash (Advanced) Python (Basic-Intermediate)
Operating Systems & Administration Advanced
Linux: Debian, Ubuntu, CentOS (Advanced administration) Windows Server: Active Directory, DNS, DHCP, GPOs Mail Servers: Postfix/IredMail, Zimbra Web Servers: Apache2, Nginx (Advanced configuration)
Virtualization & DevOps Advanced
Proxmox VE Kubernetes Docker Nagios Zabbix Git GitHub Automation & CI/CD
Networking & Security Advanced
Networking: TCP/IP, Switching, Routing, VLANs, VPNs Firewalls: pfSense (Advanced), Iptables Proxies: Squid (Advanced configuration) Cybersecurity: Implementation of security policies
Databases & Tools Advanced
MySQL MariaDB PostgreSQL phpMyAdmin GIS: ArcGIS, QGIS (Advanced)

Interests

Frontend Development with React and modern JavaScript technologies
Implementation of DevOps methodologies and process automation
Participation in open source communities for Linux and web development
Research in new infrastructure and container technologies
Development of personal projects to experiment with Frontend tools