Jessica Adriana Pacheco Barrera
Techical Consulting Engineer - Enterprise Routing
Jamaica,Ciudad de Mexico
Summary
Experienced IP network engineer with a strong background in operating large-scale, secure routed and switched networks for leading service providers in Latin America and the USA, including Telmex, Claro, Embratel, Axtel, Sprint, AT&T, and Verizon. Previous experience at General Datacomm and Ericsson, excelling in 1st level operations for network functionality and 2nd level roles for preventive maintenance, hardware troubleshooting, and IP issue resolution.
Overview
16
16
years of professional experience
2
2
Certifications
2
2
Languages
Work History
Technical Support Engineer [ Routing & Switching ]
Cisco
Ciudad De Mexico, Ciudad De Mexico
07.2017 - Current
- Responsible of providing technical support on complex issues related to Enterprise and SP technologies as part of the TAC Customer support Engineer.
- Focused on the routing protocols in charge of troubleshooting and diagnosing routers and switches on IOS and IOS-XE based for problems related to L3 protocols such as EIGRP, OSPF, BGP, IPv6 multicast, PBR, NAT, LISP, LDP, MPLS L3 VPN, MPLS L2 VPN, mVPN, IWAN, VxLAN, etc.
- Providing external trainings to the customer on video and documentation.
- Provide technical assistance to other groups inside of the Cisco TAC community.
- Elaborate complex lab setups and duplicate issues in order to solve the customer’s problems.
- Share and suggest official documentation on best practices to improve the performances of the customer’s network.
- Provided remote assistance to clients, ensuring timely resolution of software and hardware concerns.
- Mentored junior members of the team on best practices in issue resolution techniques.
2nd Level Operation [ IPCore ]
Ericsson
Ciudad De Mexico, Ciudad De Mexico
03.2016 - 07.2017
- Responsible of maintaining the global E-WAN and GMPLS network providing internet to costumers like Google , Echostar, AT&T, Veolia Environmental Services, Verizon, Akamai Level 3.
- Work during Maintenance windows on hardware T-shooting of T3 , physical links between costumers, and local links.
- Management of Routers and switches as CRS-16 series Ciena 5305 and Juniper routers MX930.
- Perform testing cards like SIP-601, SIP-401 , SPA, PRP, Line cards.
- Coordinate replacements of chassis and hard disk for internet server cache and restauration of the system from the following clients Akamai and Google.
- Detection and prevention of DDS attacks on the GMPLS network.
- Engaging different Transport team in order to T-shoot DWDM equipment and Sonet rings.
- Used strong analytical and problem-solving skills to develop effective solutions for challenging situations.
2nd Level Operation [ Wireless Data Infrastructure]
Ericsson
Ciudad De Mexico, Ciudad De Mexico
07.2014 - 03.2016
- Supported Sprint Nextel Core IP backbone networked system EVDO, 4G LTE , CDMA , OSSnet , eHRPD
- Coordinate problem-solving between customers and provide analysis related to network.
- Bridge management correlating with other groups on combined issues.
- Responsible for maintenance windows , replacing hardware and T-shooting (6500, 3800, 7206, 2911 2800 Series , ASR9000 and Nexus 7000 , Juniper platforms MX960/M320 and Avaya Switches )
- Connectivity Troubleshooting ( port testing, Resetting modules, port bouncing.)
- Follow up with vendors such as Cisco and Juniper to seek root causes event in IOS ,IOS XR NX-OS and JUNOS.
- Perform break-fix activities responding as escalation from first level.
1st Level Operation [ Wireless Data Infrastructure]
Ericsson
Ciudad De Mexico, Ciudad De Mexico
01.2013 - 07.2014
- Provide 1st Level Support for the backbone of Sprint network EVDO , 4G LTE , CDMA which has Cisco and Juniper routers and switches ( most of them 6500, 3800, 7206, 2911 2800 Series , ASR900 and Nexus 7000 ) , Juniper platforms MX960/M320, costumer data call path elements like AAA, eHRPD AAA, PCRF, HA/PDSN and HSGW platforms.
- Creation of trouble tickets and track them until resolution.
- Opening Cisco TAC cases and Juniper in order to T-shoot and replace damaged parts, also providing information in order to T-shoot problems of software or bugs.
- Schedule Maintenance Windows with Field Techs for NTAC and 2 Level Ops.
1st Level Operation [VoIP NMC]
Ericsson
Ciudad De Mexico, Ciudad De Mexico
09.2011 - 01.2013
- 1st level Support for Sprint VoIP network , monitor and T-shooting various vendors – Acme, Alcatel Lucent, Samsung.
- Working closely with second level operation in resolution of failures and engaging third party vendors.
- Create trouble tickets to track and resolve network issues.
- Coordinate Maintenance window with field techs and opening bridges for high severities.
Monitoring Engineer
General Datacomm de Mexico
Ciudad De Mexico, Ciudad de Mexico
09.2009 - 09.2011
- Provide management and monitoring of VPNs for multiple customers as Banco del Bajio , Toks, UVM University , FONATUR, C4 Morelos Government facilities, Proactiva Medio Ambiente, MABE, which consist on Cisco 2800 series routers , Call manager , IP phones , Teldat routers .
- Create cases with multiple vendors nationals and internationals like: Bell, Verizon, Cable & Wireless, Claro, Embratel, Orange, Axtel, Telefonica, ETB, CIAC, Telnor, GSite, UNE, Amnet, Avantel, TEMSA, Codetel, BT Arg, Global Crossing.
Education
TSU TIC - Network and Telecommunications
Universidad Tecnologica De Nezahualcoyotl
Ciudad De Mexico 08.2009 -
Skills
Friendly, positive attitude
Teamwork and collaboration
Computer skills
Customer service
Problem-solving
Flexible and adaptable
Multitasking Abilities
Certification
CCIE-Enterprise Infrastructure CCIE# 69168
External Links
How to Leak Routes Between VRF and Global Routing Tables
https://www.youtube.com/watch?v=WOMhSZPWKkM
Configure VRF Leaks on IOS XE
https://www.cisco.com/c/en/us/support/docs/ip/ip-routing/216541-vrf-configuration-examples-on-ios-xe.html
Troubleshoot IS-IS Adjacency Issues
https://www.cisco.com/c/en/us/support/docs/ip/integrated-intermediate-system-to-intermediate-system-is-is/220649-troubleshoot-is-is-adjacency-issues.html
Troubleshoot PMIP Tunnel Establishment on IOS XE Routers
https://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/ios-xe-amsterdam-1731/220598-troubleshoot-pmip-tunnel-establishment.html
Troubleshoot Mobile IP Tunnel Establishment
https://www.cisco.com/c/en/us/support/docs/ip/mobile-ip/220597-troubleshoot-mobile-ip-tunnel-establishm.html
Configure Thousand Eyes - Enterprise Agent for ASR1k, ISR4k and Cat8k Platforms ( Docker Install )
https://www.cisco.com/c/en/us/support/docs/routers/catalyst-8000v-edge-software/220391-configure-thousand-eyes-enterprise-age.html
Timeline
CCIE-Enterprise Infrastructure CCIE# 69168
05-2025
Implementing and Operating Cisco Enterprise Network Core Technologies
07-2022
Technical Support Engineer [ Routing & Switching ]
Cisco
07.2017 - Current
2nd Level Operation [ IPCore ]
Ericsson
03.2016 - 07.2017
2nd Level Operation [ Wireless Data Infrastructure]
Ericsson
07.2014 - 03.2016
1st Level Operation [ Wireless Data Infrastructure]
Ericsson
01.2013 - 07.2014
1st Level Operation [VoIP NMC]
Ericsson
09.2011 - 01.2013
Monitoring Engineer
General Datacomm de Mexico
09.2009 - 09.2011
TSU TIC - Network and Telecommunications
Universidad Tecnologica De Nezahualcoyotl
08.2009 -
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