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Network Support Engineer

Network Support Engineer - Network Synergy Corporation

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Work Experience

Network Support Engineer

Network Synergy Corporation
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Trumbull, CT
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April 2013 to Present

Work with team to support and consult various networks for small, midsize and large organizations. 
• Troubleshoot and support wide range of technologies: Active Directory, DNS, DHCP, DFS, Replication, Terminal servers, Citrix, Windows Server 2012, 2008, 2003, Exchange 2013, 2010, and 2007, DAG, Zimbra Mail and POP3 Systems; Firewalls (Cisco ASA, PIX, and SonicWall), Cisco and HP routers and Switches. 
• Administer several VMware environments running 5 and 5.5 and HYPER-V clustered environments 
o Storage: HP MSA and EMC SANs 
• Work with Microsoft and Cisco escalation teams on several issues: 
o Resolved DFSR and AD replication issues between global sites across multiple tunnels and ISPs. 
o Resolved Exchange RPC crash issue on large exchange environment with multiple CAS arrays and DAGs 
• Set up several Site to Site VPN tunnels, IPsec and AnyConnect Vpn on ASA 5505/10/20 and other vendor firewalls (Netgear STM/UTM, Palo Alto, SonicWall, ) 
• Firewall and switch/Router Configuration: ACL, VLAN, Routing, Accounting 
• Maintain code and ASDM upgrade on Cisco ASA firewalls, Catalyst and HP ProCurve switches 
• Maintain networks uptime via: failover and load balancing between several ISPs 
• Troubleshoot network activities: Netflow with Nessus security engine to monitor, trace down and analyze several and port activities with Nmap and WireShark 
o Implement Network Traffic Management rules: Barracuda webfilter, Netgear UTM/STM, Nessus, NetEnforcer 
• Barracuda Load Balancer for front end CAS servers 
• Maintain Public DNS for hosted domains: MX, A, CNAME, SFP, DKIM 
• Maintain Clustered Barracuda Antispam firewalls and Cloud SpamSoap for more than 500 domains 
• Back up and Disaster Recovery using StorageCraft, and Replay: Virtual Boot, offsite replication and consolidation. 
• Security measures: Enforced AD security policies, locked down ports on the firewall, NAC effectively apply Antivirus policies Vipre, Symantec, and McAfee. 
• VOIP: Work with phone vendor to implement the voip system on the network: Create Voip VLan, port natting, and routing voip traffic using QoS policing. 
• Wireless: Cisco WLC 2500 series, 5500 series ( PoE, AP conversion, Vlan, Radius authentication .); Cloud Based Controller: Meraki, Rockus 
• Mobile Management (BYOD): MaaS360 mobile Management 
• Respond and correct monitoring alerts using Labtech and LogicMonitor. 
• Take ownership and effectively manage critical issues. 
• Documentation of all projects, processes and knowledge base

System / Network Administrator

Ellucian at University of Bridgeport
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Bridgeport, CT
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February 2011 to April 2013

Highly effective in administrating Active Directory to fulfill the university requirements for each department and school using: Scripts, GPOs, OUs, Groups, DNS, DHCP, DFS shares. 
* Maintained servers Windows Server 2008 R2, 2003: OU structure, DNS (A Records) update PTR/ TTL and DNS forwarders, DHCP (Assignments, auditing, reservation), WINS, Global Catalog, directory services. 
* Active Directory administration: accountability, security groups, distribution groups, replication, GPOs and FSMO roles, Clustering configuration and administration 
* Worked with team member in migration DHCP Role from UNIX server to DC using scopes and Vlan assignment. 
* Configured, Install and deployed Microsoft Communicator 2007 
• Administer the VMware environment through VMware ESXi and vCenter on BladeSystem C7000 with more than 8 blades. 
* Execute P2V migration for multiple physical servers and V2V conversions for multiple virtual servers 
* Creating VM: Windows and Linux OS 
* Monitor and maintain VM environment: host and vm resources utilization (CPU, Memory, IO) 
* Troubleshooting issues related to ESXi host, VM migration, San Storage and vMotion 
* VM snapshot and cloning 
* Host hardware upgrade 
• Administer and manage servers: Server 2008/R8,2003; Linux/Unix: Ubuntu 
* Use the Solarwinds Orion to monitor all the Datacenter servers and address alerted issues. 
* Manage HP ProLiant Servers & Blade using HP iLO and Blade Management: DL360, DL380, DL580, BladeSystem c7000, BL460c, Dell PowerEdge 
* Monthly server patching and other maintenance tasks. 
• Worked with Programmers to resolve Datatel, WebAdvisor, Blackboard and SharePoint issues. 
• Worked closely with Datatel Programmers and project team to migrate from fat client Datatel to Web UI Datatel 
• Work with all IT team and Project team to migrate the University Email System Cyrus Mail to Microsoft Exchange 2010: 
* Effectively used resources to configure Distribution lists, alias, Databases, Microsoft Exchange PowerShell & Exchange backup. 
* Able to route emails through the legacy open LDAP& Mail to the new environment. 
* Played key role to provide solutions and work around to align the University benefits during the migration. 
* Worked closely with executive, project manager and desktop team to ensure successful implementation by providing instructions, how to, processes and feedback. 
• Laid out a project implementation plan for Sophos Enterprise and migration from the McAfee EPO: 
* Automated Sophos installation for the Server Farm and 1200 computers through active directory GPO. 
* Effectively configured Sophos Enterprise Security server according to the University environment. 
• Played key role in implementing the Barracuda Email Security 600 Appliance: 
* Collaborated with team members to implement complicated configuration to hybrid the Barracuda appliance between Cyrus Email System and the Microsoft Exchange. 
* Configured MX records. 
* Successfully migrated and imported settings from Cisco IronPort C350 to Barracuda 600. 
• Chosen to lead the configuration of Barracuda during spam attacks and security alerts: 
* Took ownership of implementing security measures to block and mitigate spam attacks 
* Successfully implement several tools: Rate Control, SPF, Reputation score and logs 
• Meet the SLA response time for incidents/requests from troubleshoot printing, user access 
• Ensure network security through applying ACLs as needed on Core switch and Cisco ASA 5520 Firewall; control and monitor traffic PackeLogic appliance. 
• Work as a team player with network team to maintain more than 200 Cisco switches 2950/2960G, ASA 5520, core Switch 6500, Cisco wireless 4400/5508 controllers and APs across main campus and remote campuses: 
* IOS configuration and upgrade 
* VLAN and ACL administration on core and access switches 
* Effectively troubleshoot and diagnose TCP/IP stacks. 
* Ipsec vpn support 
• Mentored and gently-guided junior staff and faculty on industry best-practices relating to information technology, while maximizing the efficiency of technology to their role. 
• Document changes and update tasks using ServiceNow ticketing system. 
 
• Standardized equipment (workstation, laptop) and software via Sysprep and Ghost imaging. 
• Packaged and pushed software via Altiris and GPO; Altiris Patch management of more than 800 computers 
• Implementation and support of network applications for departments and Schools: 
• University Clinics: Patterson EagleSoft (Upgrade 16), Dexis 9, Dental Aleer Office. 
• Design School: AutoDesk, SolidWorks, Siemens NX8, Rhino 4 & 5, KeyShot, Google Sketchup 
• Engineering School: MatLab, Mentor Graphics, CADs, FlexLm apps 
• Labs: DeepFreeze Enterprise 7.0, QuickBooks, Multipoint Server 2011

Technical Engineer

Worldwide Tech Services
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Norwalk, CT
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May 2006 to June 2010

Lead engineer for front end hardware upgrades for variety of systems: 
* Multivendor hardware support: IBM, Dell, HP. 
* Servers: Dell PowerEdge, HP ProLiant 
* Workstations, Laptops and ThinClients 
• Responsible for investigating and resolving technical and hardware failures related to customer equipment issues. 
• Managed on a daily basis 10-30 technical issues / cases reported; resolved minimum 7 to 10 cases daily: 
* Server issues, connectivity and performance issues 
• Pinpoint necessary improvements in order to increase efficiency and effectiveness to computer operations. 
• Provide basic and in-depth support for all Microsoft systems: Windows XP, 7 and server 2003/2008 
• Attained company goals of increased overall Customer Satisfaction by 95% through team collaboration.

Education

Masters in Technology Management

University of Bridgeport

May 2014

Bachelors of Computer Science

Southern CT State University

May 2008

Additional Information

CORE COMPETENCIES 
• Strategic thinker 
• Fast and Self learner 
• Team player 
• Project Management & Planning 
• Market Research 
 
• Extensive experience in Active Directory & Exchange 
• Expert in Windows […] 8 
• Skilled in Virtualization & Storage 
• Good working knowledge of MS SQL […] 
 
• Possess extensive knowledge of LAN/WAN network protocols 
TCP/IP, OSPF, RIP, EIGRP. 
• Practical knowledge: Cisco IOS, CatOS, ASA firewall, Wireless Controllers, VPN and monitoring tools: WireShark, Orion & Netflow.