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Network Support Engineer

Network Support Engineer - Network Synergy Corporation


Work Experience

Network Support Engineer

Network Synergy Corporation
Trumbull, CT

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
Bridgeport, CT

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
Norwalk, CT

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.


Masters in Technology Management

University of Bridgeport

May 2014

Bachelors of Computer Science

Southern CT State University

May 2008

Additional Information

• 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 
• Practical knowledge: Cisco IOS, CatOS, ASA firewall, Wireless Controllers, VPN and monitoring tools: WireShark, Orion & Netflow.