Nikolay Chigrin

Email: job@chigrin.com | LinkedIn: http://www.linkedin.com/in/nikolaychigrin/

Phone: 386-237-4747 | Irvine, California, 92602

 

 

Summary

I’m Network/Systems Engineer with over 10+ years of international experience in design, installation, configuration, administration and troubleshooting of LAN/WAN infrastructure and security using Cisco routers and switches. I have a good experience on Windows, Linux and FreeBSD systems. Also I have been worked in various industries like Telecommunications, Production, Manufacturing, Shipping and Engineering services industry. I’m highly motivated, self-managing and very responsible person.

 

 

Technical Expertise

·  Systems:
Microsoft Windows Server (NT4.0/2000/2003/2008/2012).
Microsoft Windows (3.11/95/98/ME/NT4.0/2000/XP/Vista/7).
Linux (Debian, Ubuntu, OpenSUSE, Fedora, RHEL).
FreeBSD.

·  Hardware: Cisco switches and routers, Watchguard security devices, Nortel switches, HP ProCurve switches, LinkSys switches and routers, HP Blade Systems, RAID storage support, SAN storage support.

·  Software: Cisco IOS CLI, Nortel Device Manger, HP ProCurve CLI, HP Data Protector, Wireshark, Microsoft Office Suite, Open Source Software support.

·  Services: Active Directory, MS Exchange, MS IIS, VMWare, XEN, OpenVZ, Apache, ProFTPd, Bind DNS, MySQL, MS SQL, PostgreSQL, Squid, Postfix, and more Internet services.

·  Networking: BGP, DHCP, DNS, EIGRP, FTP, OSPF, RIP, SMTP, SNMP, SMB, TCP\IP, WWW, VLAN.

·  Cloud computing: Amazon EC2, DemonWare, Joyent, Right Scale Management software.

 

Certificates

·  Cisco                             — Cisco Certified Network Associate (CCNA)

·  Brainbench               — Computer Technical Support

·  Brainbench               — Network Technical Support

·  Brainbench               — Web Server Administration

·  Brainbench              — PHP4 Programmer

·  Brainbench               — MS Windows 2000

·  Brainbench               — Apache 1.3.12 Administration

Professional Experience

 

12.2011 – Now    Talend | Open source middleware solutions, Systems Administrator

·  Linux Administrator (CentOS, RHEL, Debian, Ubuntu), Microsoft Windows Server 2008 R2 Administrator.

·  Active Directory Administrator.

·  CISCO based networks Administrator.

·  Watchguard Firewalls Administrator.

·  Databases Administrator (MySQL).

·  VMWare v5.0 Administrator (Creation, cloning, maintenance).

·  DNS management.

·  Apache, IIS management.

·  VPN and Security management.

·  Terminal Services Management.

·  NAS support and management.

·  Monitoring systems in the datacenter for stability and performance.

·  Data Center management (Systems design, Software installation and tuning).

 

10.2010 – 12.2011    SleepyGiant | Online games support, Systems Engineer

·  Mentor team of 2 System Engineers.

·  Linux Administrator (CentOS), Microsoft Windows Server 2008 R2 Administrator.

·  Database Administrator (MySQL, MS SQL 2005/2008).

·  VMWare v4.1 administrator (Creation, cloning, maintenance more than 100 virtual hosts on the different Datacenters).

·  DNS management.

·  Apache, IIS management.

·  VPN and Security management.

·  Terminal Services Management.

·  Monitoring systems in the datacenter for stability and performance.

·  Scripts development for automated jobs.

·  Data Center management (Systems design, Software installation and tuning).

·  Participate in rotating on-call; receive escalation calls from NOC during on-call periods.

·  Designed and implemented auto-recovery jobs for the environment working in the different NOCs what reduced project offline time from several hours up to 30 minutes.

·  Designed and implemented databases backup strategies for MSSQL and MySQL projects.

·  Maintained and configured corporate local network with the Cisco hardware.

·  Designed and implemented automatic data conversion from PostgreSQL to MySQL.

·  On-line games launch and support: Spyro’s Skylanders, Pokemon TCGO, Warmage Battleground, Family Guy Online, Crime Craft, EnVie, Freaky Pets, UFC Facebook Game.

 

11.2006 – 06.2010    LMT| Mobile phone services provider, Data Center Network Engineer

·  Network Administrator (Cisco & Nortel), Security Administrator, Linux Administrator (Debian, Ubuntu, RHEL), Microsoft Windows 2003/2008 Server Administrator, Backup Administrator (HP OpenView), Mobile TV Project Administrator (DVB-H Technology).

·  Wireless networks project leader – managing and supporting Internet access (Hotspots, Accounting software, Databases) for the clients at the company’s branches. Open Source Software used: NoCat, MySQL, Apache and network management services like DHCP, DNS.

·  Extensive experience with the Open Source Software: configuration, compilation, patches, debugging.

·  Virtualization Support (XEN, OpenVZ), Servers Maintenance (Hardware/Software troubleshooting), Services Redundancy (VRRP).

·  Achieved Cisco Certified Network Associate certificate (CCNA) and supported networks with the Cisco switches, routers and hundreds of clients.

·  Successful migration from the old (Cisco 4000 Switches, NORTEL Switches) to the newest (Cisco 3750 Switches, Cisco 7613 Switches/Routers/Firewalls, Cisco MARS) hardware.

·  Leaded the migration of backup system (HP OpenView) from the HP-UX to the RHEL, which increased backup speed four fold.

·  Working experience with: TCP\IP, EIGRP, OSPF, RIP, BGP, DNS, DHCP, WWW, FTP, SMTP, SNMP, SMB, ACL, firewalls, routing, NAT, Web, FTP and Proxy servers administration.

 

05.2006 – 11.2006    “Samsung Electronics Latvia”, Network Administrator, Systems Administrator

·  Network Administrator, Windows 2003 Server Administrator (Domain Policy, File Share Services, Active Directory, IIS).

·  Projected, installed and managed Local Area Network for the new branch office.

·  Wireless networking management.

·  PC/Laptops (Windows, Linux) maintenance and troubleshooting.

 

02.2005 – 05.2006    “InfoServs Grupa”, Network Administrator, Systems Administrator

·  Network Administrator, Windows NT4.0/2000/2003 Server Administrator (Domain Policy, File Share Services, Active Directory, IIS, Apache, Merak mail server, Mdaemon mail server, SERV-U FTP server), FreeBSD/Linux Administrator (Routing, Proxy, Mail, Firewall).

·  Started as a PC Technician and within 1 year became top performer assisting team in increasing client base by 200%. Installed, supported and managed computer network at the City Hospital that enabled common patients database and changed the way doctors exchanged information.

·  PC/Laptops (Windows, Linux) maintenance and troubleshooting.

·  Network management, installation and troubleshooting.

 

06.2002 – 02.2005    “MSC LATVIA”, Network Administrator, Systems Administrator, Web Applications Developer

·  Windows 2000/2003 Server Administrator (Active Directory), Microsoft Exchange Administrator, Network Administrator, FreeBSD Administrator (Routing, Proxy, Mail, Firewall), Database Administrator (MySQL), Web Applications Developer (PHP).

·  Developed (PHP) web ticketing system, which improved feedback and solution times.

·  PC/Laptops (Windows, Linux) maintenance and troubleshooting.

 

08.2000 – 02.2002“SCAN-THORS BALTIKUMS”, Network Administrator, Systems Administrator

·  Windows NT4/2000 Server Administrator (Domain Policy, File Share Services, Active Directory), Microsoft Exchange Administrator, Network Administrator, FreeBSD Administrator (Routing, Proxy, Mail, Firewall).

·  Leaded and performed migration to the “green” standards. Local computer network was installed, employees started to use email instead of standard mail and paper usage was reduced 5 times. Communication between staff and clients rapidly increased. These changes allowed the company to earn greater revenue.

·  PC/Laptops (Windows, Linux) maintenance and troubleshooting.

 

 

 

 

Education

·  Latvian University: IT and programming special courses.

·  Riga's Civilian Aviation University: IT and PC hardware design & repair courses.

·  Baltic Russian Institute: IT management, Bachelor degree.