Oleksii Gorbulin

Experience

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  Zhytomyr medical diagnostic center

  Aug 2005 - May 2007

  Zhytomyr Regional Medical Consultative & Diagnostic Center

  Responsibilities.L2 network support, software developing (Delphi), installing and update software, support server (NetWare) and workstations (Windows 98, Xp) (about 100), network troubleshooting (L1, L2), antivirus support.

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  Zhytomyr medical perinatal center

  Feb 2007 - Dec 2021

  System administrator

  Responsibilities.support WS (about 20) update and install new software; install print equipment; support DB and server SLES (Novell eDirectory); network troubleshooting.

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  Intellecom LLC

  May 2007 - Dec 2009

  Service engineer

  Responsibilities.Radio planning and new base station installation; organize radio links by Motorola Canopy equipment and radio relay links by Tel Link P-Com (E1); expanding and support customer network; configure customer's and base station's equipment; troubleshooting and fixing radio network problems; remote diagnosing and configure equipment; prepare and installing switches and routers (Cisco, D-Link, Dell, Asus, Cisco 7200, IP Phone7960, Catalist); configure and installing IP video cams. Show less

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  MTS Group

  Aug 2010 - May 2015

  System administrator, administrator DCN&PBX

  Responsibilities.second line user support (100+ users); supporting network infrastructure of central office and 5 branches (Cisco) and IP telephony (Cisco CME, Nortel); upgrade, configuration and new installation of network equipments (switches, routers, APs), monitoring equipments (Cacti); servers administration Novell SLES+OES, freebsd, ESXI; upgrade and add new workstations, print-servers (network MFU/printers); users and WS administration by Novell Zenworks; antivirus support (KAV); remote administration of WS, including VDI and network equipment, network troubleshooting (L2, L3), support communication engineers about connecting new customers (VPN, MPLS), support/ installation blade servers (HP Proliant g8) and NAS.Achievements/projects.- 2011y. upgrade old workstations (about 120);- 2012y. change old network equipment: routers Cisco 1700 series on Cisco 2921, switches Cisco 2950 on Cisco 3560, IP telephones changed on Cisco IP Phone 7940;- 2013-2014y. upgrade DCN and server rooms, change last mile on fiber optic (from E1 on SDH) in branches;- 2014y. update 120 WS to Windows 7;- 2014y. print outsourcing project was provided with Xerox company cooperation, all print jobs are authorized by card, accounting print jobs;- 2015y. migration from KAV to McAfee.Network and administration knowledges:- full network installation (L1) 802.3 u/z/a/b and 802.11 a/g/n;- full switching configuration (L2, VLANs, VTP, VMPS) Cisco (35, 29 series);- full routing configuration (L3, NAT, OSPF) on Cisco (1700,2800,2900 series);- OS support: freebsd, windows;- full eDirectory services installation and configuration (based on Novell SuseLinux);- full monitoring services installation and configuration (Cacti);- base knowledges in vSphere, VMWare ESXi; Show less

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  ISM Ukraine

  Jun 2015 - now

  - development and maintenance of online stores (Magento 2, Magento 1)- working with Magento Cloud- development of Magento modules- code refactoring and performance optimization of Magento stores- decreasing TTFB, troubleshooting(NewRelic), profiling (XHprof), Blackfire- integrate Magento with other systems and services using API- installation and customization of third-party modules, bug fixing, reporting- integration of third-party APIs and provide custom API functionality- working with payment, shipping services- SEO optimization (hreflangs, rich snippets, sitemaps...)- install security patches for Magento platform SUPEE- improve security level (prevent XSS)- web analytics by GA and GTM- Magento code contribution Show less

  • Team Leader, Magento Developer

    Sept 2018 - now

  • Magento developer

    Feb 2016 - Sept 2018

  • PHP Developer

    Jun 2015 - Feb 2016