Kamil Wrońszczyk

Experience

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  Complex S.A.

  Apr 2010 - May 2011

  IT Specialist

  • Support for employees and service works (e.g. repairing and assembling computers, components replacing, software and operating systems installing),• LAN management, Cisco devices configuring (routing, VLAN, DHCP, ACL, VPN, NAT),• Terminal servers, Exchange 2007 and Active Directory management (e. g. access and permission granting, creating and deleting users and groups),• Internet domains management, DNS configuring.

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  Focus Telecom Polska Sp. z o.o.

  Jun 2011 - Aug 2014

  Technical support engineer

  • Technical support team management (e. g. tasks prioritization, implementing procedures constantly improving customer support),• Customer technical support,• Support for employees and service work (e.g. repairing and assembling computers, components replacing, software and operating systems installing).

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  Citibank Europe PLC

  Sept 2014 - Nov 2017

  • Remediating vulnerabilities and EoL Software for network components. Schedule changes for OS upgrade for various platforms (F5, Citrix, Cisco, Nexus, Arista, Juniper, Riverbed Steelhead) to remediate bugs and EOL software,• Perform quality assurance of PSK/RSA keys on B2B connections/devices renewal process,• Track and remediate non-compliance with policies/lockdown templates in configuration of network components (e. g. Cisco IOS, Nexus, Arista, Juniper),• Track and remediate reconciliation for network devices to the major Network Management Tools used within the company (SMARTS, HPNA, InfoVista). Show less • Provide Tier I Technical Change Support for Citi’s global technology infrastructure,• Execute or implement automated and scripted changes,• Recognize severe events within the change space as they occur and engage Management immediately upon awareness of severe technology degradation,• Document and update incident technical details on all issues that occur as a result of a change into the ServiceNow ticketing system• Escalate issues to Level 2 support if unable to resolve through initial troubleshooting and change validation practices,• Communicate with Management to provide frequent status updates regarding change related technical issues and provide accurate status updates on the change remediation efforts. Show less • Provide Level 1 Network Technical Support for Citi's global technology infrastructure,• Resolve incidents that may include:- major incident support and escalations,- 1:1 hardware replacement,- execution of manual failover,- vendor supported corrective actions,- equipment resets,• Execute or implement hardware replacement and configuration changes,• Recognize severe events as they occur and engage Management immediately upon awareness of severe technology degradation,• Document and update incident technical details,- Escalate issues to Level 2 support if unable to resolve through initial review and troubleshooting. Show less

  • Level 2 Network Engineer - NCIS Preventative Maintenance

    Jan 2016 - Nov 2017

  • Senior Network Change Implementation Engineer

    Jun 2015 - Dec 2015

  • Level 1 Network Engineer

    Sept 2014 - May 2015
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  Network Experts Sp. z o.o. sp. k.

  Dec 2017 - Feb 2020

  Senior Network Engineer

  • Network designs, implementing security solutions, hardware replacement,• Network consulting in terms of solutions, configuration and equipment selection,• Customer network infrastructure care, issues troubleshooting, changes implementation, post-implementation care.

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  Citibank Europe

  Mar 2020 - now

  Network Build Engineer

  • Network designs preparation and implementation covering: new PODs/devices/B2B services installation, 1-to-1 faulty/EOVS devices replacement, devices/B2B services/sites decommisson, migrations, scaling network up/out, BoM preparation in following segments:- B2B/perimeter - edge of Citi and 3rd party network, Internet edge,- Campus - networks in main country locations (HQ and COB),- Data Center,• Proposing designs requiring non-standard Citi solutions.