Iaroslav Grechyn

+1-647-***-**** • ac6vl4@r.postjobfree.com

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* ***** ** ** ********** in Administration and Troubleshooting, 2 years in Networking. Responsible, organized and highly reliable with a strong technical background. Able to multitask effectively and work well in team. Windows/Unix/Linux system administrator with experience configuring, monitoring, upgrading and maintaining system hardware, software and related infrastructure. I like to discover new places on my camping journeys with my family and friends. Administration skills: Windows Desktop (WinXP-Win10); Windows server (2008-2016); Active Directory Domain Controllers; Mac; TCP/IP; DNS; DHCP; Linux server administration (Debian, OpenSUSE, Ubuntu); VMware ESXi/vSphere 5; Software installation; Hardware configuration; System disassembly; Python; Communication; Service Desk; Data Center. Cisco skills: Cloud resources; EIGRP; GRE; IPv4 and IPv6; LAN switching; Networking; Network Administration; Network Security; Network Topologies; OSPF; QoS; RIPv2; Static and Dynamic routing; Troubleshooting; WAN topologies; VoIP; Wireless Technologies. Work Experience

Technical Support Specialist

Justice Legal Services, Toronto, Canada

May 2017 – Present

• Installing and configuring system software

• Testing compatibility of new programs with existing ones

• Maximizing use of software and hardware by training users, interpreting instructions, answering questions

• Maintaining system capability by testing computer components

• Maintaining historical records by documenting hardware and software changes and revisions

• Maintaining professional and technical knowledge by attending educational workshops Datacenter Technician

Tangram, Toronto, Canada

December 2016 – May 2017

• Protecting important information by performing backup on all critical systems

• Carrying out system administration tasks such as software installation/updates, security patches, and hardware maintenance

• Monitoring customer network servers and storage systems to ensure uptime and efficient resolution of issues

• Assisting senior level engineers in designing/modifying network systems and application infrastructure

• Maintaining records of all systems administration operations Computer Technician

Freelancing, Toronto, Canada

March 2010 – June 2018

• OS installation, troubleshooting, cleaning, backup and recovering (Windows XP-10, Linux Ubuntu, MacOS)

• Installing and configuring system software

• Developed best ways to troubleshoot and diagnose different hardware/software issues and incompatibilities

• Able to explain technical concepts in the clear and reliable ways System Administrator

NovaNet, Ladyzhyn, Ukraine

June 2009 – February 2010

Linux System administrator responsible for:

• Managing Unix-like server (Debian, OpenSUSE)

• Managing client database

• Deploying, supporting and troubleshooting local network infrastructure

• Managing DNS and DHCP servers

Web developer responsible for:

• Developing website containing general information about company and tools for user registration and accounting

• Developing a website containing local network media library and local forum

• Managing Apache, Samba servers and, MySQL databases

• Working with clients and solving clients issues

• Troubleshooting network issues

• Creating, reviewing and signing out an Service Level Agreements to subscribers. Education

Computer System Technician Diploma, 2017 - 2018

George Brown College, Toronto, Canada

Wireless Network Technician Certificate, 2017

George Brown College, Toronto, Canada

Computer Science Bachelor Diploma, 2004-2009

Vinnytsia National Technical University, Vinnytsia, Ukraine Certificates

Cisco Certified Network Associate Routing and Switching (CCNA), May 2018, Toronto, Canada

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