Chrystian Guillen Quiroga Systems and information technologies engineer

Lead technology

Infosys

Oct 2021 - Nov 2022 (1 year 2 months)

- Supporting retail (Adidas) the payments systems - Verifying Python code - Supporting the cloud infrastructure (AZURE) operating systems (Redhat) and virtual machines on Citrix for the project contracted by the company Supporting through tickets with Service Now with SLA times to be met, managing through commands Linux environments supporting the means of payment processes as well as inventory for solving problems and troubleshooting

Sr. Associate work center tech support tier 2

ATT

Jan 2020 - Sep 2021 (1 year 9 months)

- Manages BVoIP network checking environments on Linux (Redhat) by commands with Cisco and Edgewater routers and switches support to all USA customers, daily operations for the customers working on Service Now. - Support SIP protocols in the transport network - All the customers work with SLA. Required travel 100%. Making solutions on Posix Shell. Leader of 5 persons. Making internal engagement of teams for solving problems. Troubleshooting on circuits and routers

Software engineer

Diebold Nixdorf

Jan 2019 - Oct 2019 (10 months)

- Working with the Global team of Banking, troubleshooting on ATM with Windows 10 and Suse Linux. - Supporting the upgrade of Windows 7 to Windows 10. Lead of two shifts with 10 persons, as a lead working with SAP for the monthly invoices of the projects. Supporting the banking network in Mexico and USA. - Working with Jira and EBS for tickets. Required travel 100%. Checking codes on Java.

Lead sap support customer

Festo SAS.

Sep 2018 - Dec 2018 (4 months)

- Supporting national customers with daily, weekly and monthly orders. Supporting internal and external customers with SAP Master Data. - Supporting HP-UX operating systems. Implementation of the Crystal Reports. for internal areas. Implementation of new partition of SAP. Required Travel 50%

Level 2 planning and engineering

Ericsson

Sep 2016 - Aug 2018 (2 years)

- Supporting the platform for a customer carrier on Africa, responsible of three countries. - Sending the reports daily, weekly, monthly and yearly for checking the statistics of the service providers. Required travel 100%. Supporting Oracle 11g Linux.

Level 3 solutions architect

Huawei Colombia

Nov 2015 - Sep 2016 (11 months)

- Supporting and Implementation of the requirements from the customer. Implementation of the KPI´s in the data network for the performance statistics. - Managing a global team of 8 persons. Required travel 100%. Supporting Oracle 11 G Linux with Suse.

3

It manager

3TRESADDI

Jan 2015 - Nov 2015 (11 months)

- Implementation of the ERP, VPN, server, switch and routers. Implementation of the PBX. Make the documents of all the implementations. Making the upgrade of the software. - Making the implementation of the profiles for security.

Field customer service engineer

Siemens

Oct 2013 - Nov 2014 (1 year 2 months)

- Supporting the modality of SYNGO, Implementation of the networks in hospital, Upgrade of the operating systems for making the change to a virtual environment. - Global support of hospitals. Supporting Solaris, Oracle and AIX.

Systems analyst

Telcel

Jul 2001 - Jul 2013 (12 years 1 month)

- Supporting internal customers for the different cycles of the invoice. Supporting the different regions in Mexico with communications sending the invoice files to Mainframe. - Making the process of prepay and post-pay for getting new accounts on customer services. Supporting AIX, Solaris, HP-Ux.

Chrystian Guillen Quiroga

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