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Security Information Technology

Miami, Florida, United States
February 14, 2018

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Ernesto J. Meléndez Luna

786-***-**** - Miami Florida


Information Security Professional with Master's degree in Network Security and Information System Management. Experience managing security appliances, SIEMs, vulnerability analysis and threats, penetration testing, UNIX systems and scripting. More than 5 years working in Information Security and 8 in Information Technology. Certified Ethical Hacking, CompTIA Security +, and Certified Penetration Testing.


Telefónica Business Solutions

Information Security Engineer January 2016 - Present

Assist in the design, governance, implementation and support of security platforms to provide the better customer satisfaction for more than 50 clients.

Perform critical system changes during and after business hours to keep business integrity, scalability and assurance and getting the best systems’ performance.

Vulnerability scanning, penetration testing and threats controls.

Configure Firewalls, SIEM, Antivirus, Intrusion Prevention, Email Filter, Vulnerability Scanners.

Different vendors experience (Fortinet, Checkpoint, Cisco, HP, Palo Alto, Red Hat, Rapid7, Tenable).

Security platforms audits while helping and performing as a security analyst in the Managed Security Service and Global SOC Team.

Assist end users with troubleshooting issues regarding IPsec, SSL VPN, Encryptions Methods, account management, IPS and Firewalls.

Implementing designs and architecture for new projects environments for a better integration of security services and end devices (Firemon, HP ArcSight, Nessus, Nexpose)

Manage key projects to achieve client’s necessities within security measures and governance.

Creation of procedures, training / operations manuals.

Resolve incident management tickets as they arise and ensure timely resolution.

Keep up to date with PCI and ISO27001 standard for controls and auditing purposes.

Telefónica Business Solutions

Configuration Management (Security Specialist) July 2015 – December 2015

System Administration and configuration on Solarwinds, OPSView, Nessus, and HP ArcSight.

Configuration Management on ServiceNow & BMC Remedy.

Secured configuration for servers, workstations, and network and security devices.

Performed day-to-day to activity to ensure optimum up time and performance in a proactive manner.

Set up alerts according to Incident Reponses procedures.

Developed configuration management plan for security assurance.

Performed tool administration and process configurations – Incident, Problem, Change, Knowledge, and Release Management.

Extracted and analyzed reports from different tools. (Nexpose, Nessus Professional, Solarwinds, OpsView)

Maintained and troubleshoot system issues.

Coordinate with process owners on process updates.

Applied product fixes, hot fixes, patches and configuration changes to support the business processes, security, and business availability.

Lead projects and assisted to CAB meetings for new security appliances implementations.

CLARO - Nicaragua

Sysadmin / OSS Security Engineer April 2013 – June 2015

Managed server’s operation and maintenance, with different vendors (Red Hat Enterprise, OpenVMS, Solaris 10, Windows Server).

Created access lists and firewall rules for most internal network solutions.

Lead projects for patching, updates and integration related to the Central America mobile network.

Troubleshooting Mobile Networking and security controls (Global Technologies).

Developed Networking and Security Solutions for improvement.

Performed Algorithm Scripting analysis on Linux and Solaris based operated systems.

Analyzed KPI to give reports, preventing threats and vulnerabilities.

Planned and executed preventive and corrective maintenance on Linux, Solaris and Windows Servers.

Performed PostgreSQL queries to extract reports of system’s performance.

Kept up to date with SOX and ISO27001 standard for controls and auditing purposes.

Mozonte Developments - Nicaragua

Information Technology Manager February 2012 - April 2013

Improved at the 70% the way of how processes and services were being done by implementing an ERP.

Planned and executed a renewal of infrastructure equipment information technology such as Server, Computers and Laptops, router, switches, VoIP, with a high standards of security measures.

Supervised installation and configuration of the local network.

Servers and Data Base backup and scripting.

Coordinated scheduled tasks for backups and upgrades.

Supervised technical support to remote users on the domain.

Managed security plans in e-business environment, analyzing different ways to begin online marketing.


Florida International University FIU 2016 - 2017

Master of Science in Engineering (M.Eng.) – Network Security

Universidad Americana UAM 2012 - 2014

Master of Science (M.Sc.) – Information Systems Management

Universidad Americana UAM 2011

Post grade Associate – Network Security

Universidad Americana UAM 2005 - 2010

Bachelor’s Degree – System & Computing Engineering


National Center of Academic Excellence in Information Assurance and Cyber Education – National Security Agency NSA/DHS.

Certified Ethical Hacker EC-Council.

CompTIA Security + CompTIA.

Certified Penetration Tester Information Assurance Certification Review Board (IACRB).


Ethical Hacking and Penetration Testing InfoSec Institute.

HP ArcSight ESM Admin & Analyst Hewlett Packard Enterprise.

Palo Alto - Firewall 8.0 Essentials: Configuration and Management (EDU-110) Palo Alto Networks.

Advanced UNIX Universidad Americana

CCNA routing and switching Universidad Americana.

Check Point Certified Security Administrator CBT Nuggets.

Python Programing CBT Nuggets.

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