Summary
Overview
Work History
Education
Skills
Timeline
References
Generic

Izmendi Alvarado R.

Alajuela

Summary

Professional network engineer prepared for advanced roles in network design, implementation, and troubleshooting. Equipped to drive robust and secure network solutions, skilled in Load Balancing F5, DNS, routing, switching, firewall configuration, and network security protocols. Strong focus on team collaboration and achieving results, adaptable to changing needs. Known for reliability, analytical thinking, and problem-solving abilities with innovative ideas for effectively troubleshooting and resolving complex network issues, ensuring optimal performance and reliability.


Overview

5
5
years of professional experience

Work History

Western Union – Senior Network Engineer.

Western Union
11.2023 - 04.2025
  • Designed, deployed, and maintained F5 BIG-IP LTM/GTM solutions for high availability, disaster recovery, and optimized traffic distribution.
  • Engineered and implemented SSL Offloading/Bridging, advanced health monitors, and iRules to enhance application performance and security.
  • Led application traffic migration projects across data centers and hybrid cloud environments (AWS, Azure), ensuring zero downtime.
  • Performed advanced troubleshooting of L2–L7 network and application delivery issues in multi-vendor infrastructures.
  • Configured and tuned load balancing methods (Round Robin, Least Connections, Ratio, Priority Group Activation) to improve resource utilization.
  • Conducted firmware upgrades, capacity planning, and performance optimization for F5 platforms, improving throughput by up to 25%.
  • Configured and optimized DNS load balancing and global server load balancing (GSLB) using F5 BIG-IP GTM/DNS and other DNS platforms.
  • Administered public and private DNS zones, managing records (A, AAAA, CNAME, MX, TXT, PTR, SRV) to support application and service availability.
  • Enhanced network performance by designing and implementing advanced network solutions.
  • Monitored DNS health and performance of the network to quickly detect and resolve operational and security issues.
  • Led planning and technical design activities for routine operations and special projects.
  • Managed purchasing and installation of networking equipment such as core routers and switches.
  • Standardized processes and procedures for network maintenance and configuration changes, reducing errors and streamlining operations.
  • Streamlined troubleshooting processes by creating detailed documentation of network infrastructure, configurations, and topologies.
  • Installed and configured network security solutions such as VPNs, Firewalls and intrusion detections and mitigation tools.
  • Reduced downtime for essential systems by proactively identifying and resolving network issues.
  • Established and monitored key performance metrics to verify consistent compliance with important networking standards.
  • Managed vendor relationships for hardware procurement, software upgrades, and technical support services to ensure optimal resource utilization.
  • Employed strong team management and task prioritization skills to streamline project turnaround times and meet tight deadlines.


Senior Escalation Network Engineer L4

Foundever (Former Sykes)
07.2021 - 11.2023
  • Monitored network capacity and performance to diagnose and resolve complex network problems.
  • Provided complete end-to-end engineering and installation of route-based IP network solutions.
  • Performed troubleshooting for Juniper, Cisco ( Firepower, Routers, Switches, Nexus) and packet analysis
  • Provided Specialized Technical Support in (Routing, Switching, Firewalls, etc) configuration, maintenance, upgrade and deployment during complex troubleshooting analysis which provide short-term and permanent solutions..
  • Configured and optimized routing protocols (BGP, OSPF, EIGRP, IS-IS) for high availability, performance, and scalability.
  • Managed, tracked, and coordinated problem resolution and escalation processes.
  • Boosted system availability by conducting regular maintenance tasks, including firmware updates and hardware replacements.
  • Trained junior engineers on industry best practices, fostering a collaborative team environment that prioritized knowledge sharing.
  • Assisted with implementation and support of network monitoring tools.
  • Designed resilient networks to withstand unexpected events and expedite recovery.
  • Provided security incident triage and response.
  • Led meetings with departmental managers to review project status, propose changes and draft action plans.
  • Analyzed and defined network requirements, optimization and support for Network Infrastructure and Migration projects.

Chronic Issues Network Analyst

Foundever Costa Rica S.A
01.2020 - 07.2021
  • Led root cause analysis (RCA) and designed long-term remediation plans for chronic infrastructure problems, improving network stability and uptime.
  • Collaborated with engineering, operations, and vendor support teams to implement permanent fixes for systemic issues.
  • Developed and executed continuous improvement strategies to optimize network resilience, reducing repeat incidents by up to 40%.
  • Created knowledge base documentation and standard operating procedures to accelerate resolution of known issues.
  • Coordinated vendor escalations for hardware/software defects, ensuring timely delivery of fixes and patches.
  • Presented periodic problem management reports to management, highlighting trends, progress, and infrastructure risks.


Education

Project Manager - Project Management

Universidad Fidelitas
San Jose, Costa Rica
11-2025

AWS Associate - Network And System Administration

CENFOTEC
San Jose, Costa Rica
12-2025

No Degree - Business Administration And Management

Universidad Latina De Costa Rica
Alajuela, Costa Rica

Bachelor of Science - Computer And Information Sciences

Universidad De Costa Rica
Puntarenas, Costa Rica

Skills

    Skills:

  • Strong Team Player with oral and written communication
  • Project management and documentation skills
  • Strong problem-solving and analytical abilities
  • Effective communication skills for cross-team collaboration
  • Leadership and mentoring capabilities
  • Adaptability to rapidly changing technologies

    Technical Skills

  • BIG IP F5 LTM, GTM, APM
  • DNS, IPAM, DHCP, Infoblox, Mark Monitor, Akamai
  • Firewall management - Checkpoint, Firepower
  • Performance monitoring and analysis, Cisco DNA, Thousand Eyes, NetMri
  • Routing protocols BGP, EIGRP, OSPF
  • Expertise in multi-vendor environments (Cisco, Juniper, Checkpoint, F5, etc)

Timeline

Western Union – Senior Network Engineer.

Western Union
11.2023 - 04.2025

Senior Escalation Network Engineer L4

Foundever (Former Sykes)
07.2021 - 11.2023

Chronic Issues Network Analyst

Foundever Costa Rica S.A
01.2020 - 07.2021

Project Manager - Project Management

Universidad Fidelitas

AWS Associate - Network And System Administration

CENFOTEC

No Degree - Business Administration And Management

Universidad Latina De Costa Rica

Bachelor of Science - Computer And Information Sciences

Universidad De Costa Rica

References

Giovanni Najera-  8302 0445 (Former Team Manager @Western Union)

Laura Zamora - 8346 4146 (Senior Network Engineer @Akamai)

Gabriela Bermudez - 8909 2436 (Former Team Manager @Foundever)

Randall Aguilar -8494 7692 (Senior Network Engineer @Western Union)


Similar Profiles

CREATE PROFILE
Izmendi Alvarado R.