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Engineer Active Directory

Richmond County, New York, United States
April 20, 2018

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Valeriy Kaplin

***-*-****** 678-***-****)


Information Technology professional with broad experience designing systems, software installations, integration, migration and optimization, automation, security, administration, user and application support, software and hardware. Expertise in troubleshooting and problem solving. Experienced leading complex projects. Demonstrated skills in vendor management and recognized as a strong collaborator with multiple business groups and technology teams.

Professional Experience

COWEN / BNY CONVERGEX, New York, NY 07/2014 – 11/2017

VP, Sr. Windows Systems Engineer

Member of the enterprise team supporting 1000+ physical and virtual Windows Servers. Designed and implemented solutions based on Microsoft products, managed Microsoft Windows based infrastructure including DNS, DHCP, DFS, PKI, RSA, Exchange, Lync (Skype for Business), Proofpoint (PoD), Blackberry, SCCM, SCOM, Orchestrator, SharePoint, SQL, Splunk, Citrix XenApp servers. Domain and Enterprise Administrator for multi-site multi-forest Active Directory.

Built and managed physical HP and Cisco UCS servers, as well as virtual servers utilizing VMware vSphere/vCenter.

Created Windows clusters including geo-clusters (WAN clusters) to provide high availability and business continuity (BCP/DR).

Deployed operating systems, updates, configurations and software packages utilizing SCCM. Subject Matter Expert (SME) for SCCM and SCEP.

Monitored infrastructure health and performance with SCOM and HP SIM (Systems Insight Manager).

Identified and resolved hardware issues such as replacement of hard drives, array controller batteries, CPUs, memory, system boards, etc.

Managed user accounts, security groups, distribution lists, group policies (GPOs), mailboxes, access to file shares, applications, databases, servers and printers.

Automated system administering tasks with PowerShell scripting.

Projects Accomplished:

Migrated 1000+ corporate servers from Symantec Endpoint Protection to MS System Center Endpoint Protection (SCEP); result was savings on licenses and operational costs.

Migrated multiple Citrix XenApp 5.0 farms to two (prod and DR) XenApp 6.5 farms; result was fewer licenses required, simplified management and improved reliability.

Collaborated with IT and business teams on a project to decommission 200+ Windows 2003 servers. Involved building new 2008R2 and 2012R2 physical and virtual servers, allocating IP space, migrating data, updating inventory and VMware (for VMs), removed objects from SCOM, SCCM, HP SIM, AD, DNS, DHCP, etc.

Performed upgrade of MS SCCM 2012 R2 infrastructure to 1511, 1606 and 1610 versions; added new functionality and simplified maintenance.

Consolidated infrastructure in data centers to reduce allocated rack space and power consumption. Converted physical servers to VMs on ESXi clusters (P2V) or moved them to AWS (Amazon Web Services). Decommissioned obsolete hardware.

Actively involved in the integration and consolidation of two businesses resulting from the acquisition of Convergex by Cowen. Migrated users, groups, mailboxes, applications, file shares, servers and workstations, resolved Active Directory objects naming and network subnet conflicts, consolidated resources. Addressed user access issues, troubleshot permissions and name resolutions.

FINRA, New York, NY 07/2013 – 05/2014

Windows Desktop Systems Engineer - Consultant

Collaborated with Systems Engineering team on a project to migrate existing MS SCCM infrastructure from 2007 to 2012; involved planning, architecting, installation, configuring and validation, documentation, repackaging and certifying of 200+ existing software packages and migration of 5000+ workstations.

Implemented AppSense Application Manager along with AppSense Management Center; improved security and user experience to access applications and Windows features. Worked with Information Security team and department representatives, and also software vendors to design and deploy policies satisfying company requirements.

Performed OS deployment, patch management and software distribution using MS SCCM.

Supported Citrix XenApp farm providing secure cost-effective remote access to applications, servers and workstations.

Resolved issues escalated from End User Support team. Provided level 3 technical support.

Tethys Technology, New York, NY 02/2006 – 07/2013

VP, Sr. Systems Administrator / Engineer

Architected, implemented, administered and maintained high performance trading infrastructure including Windows Servers, Citrix farms, Citrix Access Gateways (CAG), Citrix Secure Gateways (CSG), NetScaler, IIS, MS SQL servers, FIX sessions with exchanges and broker-dealers as well as network connections to market data providers and customers. Coached and mentored implementation, integration and support team.

Administered multi-site multi-forest Active Directory, company servers, desktops and network.

Migrated MS Exchange from 2000 to 2003 and 2003 to 2010.

Performed migration of multiple Citrix farms from PS 4.5 to XenApp 5 and XenApp 5 to 6.5.

Migrated Symantec Antivirus to Trend Micro OfficeScan.

Designed and deployed highly available application servers based on Windows clustering.

Created virtual Windows and Linux servers utilizing VMware vSphere/vCenter, ESX/ESXi and Microsoft Hyper-V.

Deployed operating systems using Acronis Snap Deploy.

Managed HP and Dell servers, NAS and SAN storages, created RAID disk groups, allocated storage space for virtual disks for clustered and non-clustered servers. Configured iSCSI access to LUNs from the hosts.

Monitored software/hardware health/performance and applications status with SCOM.

Created PowerShell, VBScript, and Windows batch scripts to automate system administering tasks, monitoring applications health, running scheduled jobs.

Managed OS and application updates using WSUS.

Configured VPN connections between company offices and datacenters in North America, Europe, and Asia, as well as, VPN connections with counterparties and secure remote access for traveling and remote employees.

Administered MS Exchange servers. Created user mailboxes and distribution lists.

Administered MS SharePoint; managed user and group access.

Customized user and computer settings using GPO.

Configured and maintained network infrastructure servers such as MS SQL, DFS, File and Print Servers, WDS, RRAS, NLB, NPS, IIS, SFTP, DHCP, DNS, WINS.

Performed backups of business-critical data.

Managed network devices such as switches, routers and firewalls.

Education: MSc in Applied Mathematics

Certifications: MCSE, MCITP, CCNA, CCA, ITIL

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