Josué Barrientos Campos

Network Engineer with 12 years of experience. Also experience with Microsoft Windows Server, VMware and other tecnologies.

-Freelance
May 2021 - Present (2 years 4 months)
Design of several projects for confidential customers like:
-Crypto Mining Data Center design (Firewall/Routing-Switching/VMware).
-Branch network design (Firewall/Routing-Switching).
-Smart homes with Ubiquiti Hardware.
 

-IT Engineer Consultant
New Line Consultants
May 2021 - Oct 2021 (6 months)
In charge of the network of the company including changes in the data center out of the country.Using equipment from Cisco (Routers/Switches), Juniper (Switches), F5 (BigIP Load Balancers), HPEnterprise (Servers), Microsoft Products (Windows Server 2012, 2016 and active directory), Citrix(Deployment of VDI), Fortinet (Firewalls and VPN), Solarwinds (Network and server monitoring) andVMware (vSphere and upgrades).
Also my work required physical changes in the data center including network and server equipmentupgrades and install of new circuits with the local internet vendors.
 

-Network Engineer
System Crew GmbH
Aug 2020 - May 2021 (10 months)
Principal Network Engineer in Costa Rica. Engineer in charge of design, troubleshooting,implementation of network monitoring systems and network configuration changes, documentation andtraining of colleges.
Also my position requires knowledge in Windows Active Directory, Linux Servers, security and VMware.
Projects:
-Solarwinds NPM (Deploy, integration and documentation)
-Syslog NG (Deploy, integration and documentation)

-SSE Senior Network Engineer
Syniverse
Mar 2020 - Aug 2020 (6 months)
Firewall and security management for the lab environment of the company in several brands. Also, thisincludes protocols like IPv6, IPv4, BGP and switching protocols.
Checkpoint (Security rules)
Cisco (Nexus, IOS)
Juniper (vSRX, MX, EX)
Palo Alto (Security Rules)
VMware NSX Firewall
Also my job includes documentation, troubleshooting, implementations, automation (HPNA) anddecommissions of hardware.
 

-Corporate Network Engineer
Akamai Technologies
Nov 2016 - Feb 2020 (3 years 4 months)
Part of my duties were:
-Change management.
-Incident management.
-Documentation of standard operations procedures.
-Datacenter upgrades.
-Firewall Management
-Implementation of IPv6.
-Approval and implementation of firewall and switching changes.
-Mentoring.
-User enablement software testing.
-Management of several protocols/technologies like BGP, SSL VPN, IPv6, Quagga route servers,Wireless, etc.
-Management of several brands of hardware like Cisco, F5, HP/Aruba, Pulse Secure and Juniper.
-Onsite support for network issues for the local office.
-Real State (Part of the team for the new Costa Rica office)
-Wireless Troubleshoot
-Project Management
 

-Professional Network Engineer (Especialista en Telecomunicaciones)
ITS
Sep 2015 - Nov 2016 (1 year 3 months)
On site support, site surveys, network engineering and configuration changes for networkoptimization, routing, switching, wan optimization, security and data center (NX-OS). Also working onimplementations, maintenance, troubleshooting, monitoring, designing and migration of equipment inthe following state and private companies:
-RNP / Cisco Nexus, Cisco ASA and Cisco IOS Switches.
-JASEC-Huawei / Juniper Networks Equipment, maintenance, configuration and design.
-CCSS / Cisco Switches for access implementation and incidents.
-CCSS Hospital Calderon Guardia / Implementation, physical equipment installation, low level designand migration from old core to new Cisco 6800 Core Switches in VSS (Virtual Switching System).
-CCM Cinemas / Design and complete upgrade of the network.
-DHL Costa Rica / Cisco Switches and migration of old Cisco Equipment
-INS / General Network Troubleshooting
-VICAL / Datacenter and VPN links
-ICE / General Network Troubleshooting & Cisco vWAAS Implementation and Troubleshooting (WanOptimizator)
-MEP / EIGRP routing changes and Lan Optimization.
-AYA / Routing, tunnels, DM-VPNs and topology changes.
-MAYCA Foods / Network migration to new Cisco Equipment, configuration changes and emergencyincidents.
-UBER / First UBER call center in Costa Rica. Cisco Switching and Cisco ASA basic Tshoot
-MOPT / Cisco Routers/Switches and Network changes.
Worked in the migration of the principal office of the company to a new location, optimization ofconfigurations and audit of the equipment. Also my position required preventive maintenance of DataCenter equipment at IDC, JASEC and ITS Data Center (Including Emergency Changes and Incidents)and for other customers.
 

-Advanced Network Engineer at Juniper Networks TAC
Feb 2015 - Sep 2015 (8 months)
Working as Advanced Network Engineer at Juniper TAC.
Providing enterprise support in the following technologies:
-JunOS
-Network Secure Management (Also known as Netscreen Security Manager) in the areas of deploymentand troubleshooting.
-JunOS Space Network Management, Security Director and Service Now running on physicalappliances like JA1500/JA2500 and VMware virtual appliance. Also working with deployment, upgradesand troubleshooting.
-Linux Red Hat/CentOS/Custom Linux OS
-SRX/EX
-SNMP/Netconf
-OpenNMS
-VMware ESX/vSphere

-ITO GNO Leveraged Technical Support Analyst Tier II
Hewlett Packard Enterprise

Feb 2013 - Nov 2014 (1 year 10 months)
Working as L2 Network Engineer, supporting more than two hundred companies and data centersaround the world.
-Multivendor support for network devices: Cisco IOS/CatOS/Nexus, H3C, HP Procurve Networking,Riverbed WAN Optimization Devices, Cisco/HP Wireless and F5 Load Balancers.
-Real time Network Monitoring, detecting real issues in the devices and suppressing false alerts.
Investigate and resolve high priority incidents.
-Communicate with other technical teams regarding firewall and/or servers outages.
-Emergency Changes and planned changes.
-Emergency Hardware/Software incidents from Life Cycle team.
-Standard Changes for new implementations.
-Incident management: Resolving break/fix issues with costumer or HP own equipment and replacingdamage parts during normal operation.
-Queue Manager: ticket distribution, escalations and administrative tasks like back office.
-Incident Reduction: Search for the root causes for recurring incidents and find the proper solution toreduce the work load of the team.
-Audit of the principal CMDB (Configuration Management Database) to maintain accurate informationfrom the customer.
-Training of new agents for the Level I and II role (Network Monitoring, ticket shadowing, technicaltraining and internal processes).
 

-ITO TSIG Network Delivery Agent
Hewlett Packard Enterprise
Jun 2011 - Jan 2013 (1 year 8 months)
-Bank of America in the service fulfillment, working as L1 Network Engineer.
-VoIP/Analog Lines and end user troubleshooting.
-Standard changes.
-Providing new VoIP/PBX/Access Network Services.
-Working closely with ISPs for new dedicated lines.
-Technologies like Avaya VoIP, Cisco VoIP, Nortel Analog and Cisco Switches
-Organize and provide the work orders and instructions for the technicians.

Education
Universidad Latina de Costa Rica
Bachelor's degree, Electronics and Communications Engineering
2008 - 2011
 

Licenses & Certifications
Certified ITIL V3 Foundations - AXELOS Global Best Practice

VMware Certified Professional 5 - Data Center Virtualization (VCP5-DCV)

Ekahau Certified Wireless Survey Engineer (ECSE)