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Active Directory Engineer

Location:
New York, NY
Posted:
October 14, 2018

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Resume:

SENIOR SYSTEM/EXCHANGE ENGINEER

Professional Summary

A creative professional with 16 years of experience as a system administrator specializing in messaging and streamlining processes towards Lean operation. Generated over $119,000 in project revenue by identifying infrastructure deficiencies and utilizing a growing business acumen, interfacing directly with executives and aligning IT with business needs.

Experience

Atlantic Tomorrow’s Office 10/10/2011-10/10/2018

Title: NOC Engineer II & Escalation Support

Duties performed across 200 Fully Managed Client Infrastructures

Infrastructure management

●Monitored performance and analyzed network irregularities using a combination of Wireshark, SonicWALL network analyzer, Cisco Firepower/sight, iperf and iometer.

●Addressed issues with Site to Site VPN/Client VPN access to protected resources.

●Configured and managed VLANs, ACLs, trunking, spanning tree and routing of Cisco 3850, 3750x and HP/Aruba 1910, 2910, 2920 switches.

●Familiarity with routing protocols OSPF and EIGRP.

●Trained Level 1 technicians on configuring and troubleshooting various network devices.

●Resolved WIFI dead spots, interference, and overall connectivity issues using a combination of heat maps, firmware updates, and channel and power changes.

●Performed network hardware firmware upgrades during maintenance periods.

●Resolved routing/switching loops, connectivity issues, flapping, and bad routes, and port configurations.

●Resolved backend communication, authentication and authorization (SQL), including session issues for Citrix Xenapp with and without Netscaler front end.

●Resolved client side ICA connectivity issues along with access to resources for citrix users.

●Designed PowerShell/VBS/Batch scripts for full automation of recurring semi-manual processes.

●Provided overnight/Weekend support to address critical outages and emergency patching to systems.

●Managed support license renewals and installations in order to maintain active support agreements.

●Performed AD migration using ADMT and configuring two way trust relationships.

●Analyzed infrastructure performance trends, remediated the identified issues.

●Performed recovery of active directory SYSVOL suffering from Journal wrap (d2 and on occasion d4 burflag operations) and deleted objects.

●Performed Migration/seizure of FSMO roles as part of decommissioning servers or promoting new domain controllers.

●Configured Active directory attributes for integration with core business programs for single sign on.

Virtualization

Configured HA after enabling EVC and configuring redundant storage and network paths.

Made recommendations for affinity & anti-affinity rules based on VM location after host/cluster startup.

Resizing of undersized and oversized VMs based on CPU and RAM usage/idle trends.

Reconfigured provisioned vm resource reservations into resource pools at Host level.

Modified disk shares on more important VMs to grant access to more storage I/O bandwidth.

Designed scripts for VMware infrastructure with processes ranging from configuration of template/parents to detailed VMware queries.

Performed upgrades to version 6.0 using Update Manager as well as reviewed patches for the hosts.

Provided recommendations and training to optimize the virtual infrastructure environment.

Determined network and resource latency utilizing packet capture, port mirroring and ESXTOP.

Analyzed client VM infrastructure and made improving recommendations.

Configured storage multi-pathing and network redundancy.

Messaging

●Responsible for standardizing and securing messaging environment across newly acquired clients.

●Coordinated and managed exchange 2003-2007, 2007-2016, and on premise - Office365 migrations.

●Successfully negotiated a collapsed new messaging domain.

●Enabled Office 365 mail encryption and configured encryption (transport) rules.

●Configured and Managed Data loss prevention, auditing, protection policies and MFA in office 365.

●Identified all limitations and managed all workarounds to a pre-existing Exchange 2010 Office 365 hybrid environment originally configured as a migration.

●Performed Active Directory, stale mailbox, and oversized mailboxes cleanup as part of maintenance on various messaging platforms across client domains.

●Managed Sophos Secure Gateway, barracuda cloud protection layer, Symantec Mail Security and Exchange edge servers to bolster message hygiene in and out of the organization.

●Configured VERITAS cloud vault, Symantec Message Labs, and Mimecast to journal messages and provide email continuity during outages.

●Performed recovery of Public folder database pointing to deleted objects

●Expertise in troubleshooting and recovering Microsoft Exchange servers from failed exchange rollup installation.

●Managed mobile device connectivity, policies and syncing issues including but not limited to Exchange Active Sync.

●Performed new iOS and AndroidOS firmware testing prior to recommending rollout.

●Modified internal and external DNS records to support appropriate mail flow.

●Minor experience with troubleshooting Airwatch MDM enrollment issues. (less than 1 year).

●Modified SPF, DKIM & DMARC and added Reverse DNS mapping to improve inbound and outbound message hygiene and traffic.

●Implemented standard practices in Email hygiene and filtering using native exchange and 3rd party tools.

●Activated and configured built in spam and malware features of exchange 2010 and 2016.

●Performed eDiscovery, compliance searches, and litigation holds for client legal needs.

●Resolved mail flow issues including but not limited to corrupt mail queues, poison messages, back-pressure and blacklisting.

●Modified exchange attributes via ADSIedit to address misconfigurations or to add parameters to user mailboxes.

Proactive & Preventative Maintenance

●Managed WSUS, SEPM, Webroot, Sophos, Endpoint Protection, Kaspersky, and Malwarebytes policies in conjunction with tech resources to protect from infections.

●Partner with client vendors to implement, configure and maintain solutions involving data encryption, secure file transfers, intrusion detection and data leakage prevention.

●Managed Acronis, Backup Exec, Veeam, Windows Backup, Time Machine, NetApp, and Kroll//DATTO backup solutions.

Escalation Support

●Provided engineering escalation to both NOC and engineering team on projects and break-fix tickets.

●Designed scripts to reduce the amount of manual labor on various projects.

●Improved virtual infrastructure performance by troubleshooting complex hypervisor-san to physical network communications using a combination of powercli, esxcli and a number of routing and switching concepts.

●Provided detailed root-cause documentation and executive summaries to management, engineering, and clients for review after each escalated issue.

●Mentored and trained staff on systems operations and best practices through a series of “Lunch & Learns”.

Key Account Management

●Third Party Vendor Management.

●Maintained accurate and up-to-date documentation of client’s network environment and support details to ensure consistent quality support by any member of the NOC, Engineering, or Sales Departments.

●Served as technical liaison to sales representatives providing assessment of current network infrastructure and new design recommendations.

●Influenced the design, development and enforcement of the company’s Information Security policies.

●Performed proof of concepts and vendor technology comparisons.

Insight Enterprise Inc. 09/01/2010-10/1/2011

Title: System Administrator

●Served as a system administrator reporting to the Director of IT and Telecommunications Manager.

●Administered Active Directory, DNS, DFS, and V-sphere infrastructure across North America, EMEA, and APAC regions supporting 8,000 users.

●Managed the deployment of GOOD Technology and the transition of over 6,000 Enterprise Blackberry/mobile devices, voice and data services. Reducing the company's mobile device expenditure by $1.3 million dollars after the first 2 months after rollout.

●Successfully implemented Policies and procedures to deliver improved support for Security Management and IT operational activities (SOX, PCI, and HIPAA). Activities, such as performing accurate IDS / IPS Integration, essential wireless security testing/hardening, resourceful problem resolution and incident response.

General Dynamics Information Technology 07/2010-09/2010

Title: Information Security Analyst II (Active Government Clearance)

●Worked on projects requiring security clearance.

●Monitored and analyzed intrusion detection systems to identify security issues.

●Evaluated firewall change requests for possible risk assessment.

●Enforced DHS and corporate IT security policies to protect information integrity through vulnerability assessments of user accounts, application access, file system and external web integrity scan.

Broome County Urban League 10/2008-7/2010

Title: System Administrator

SUNY ATTAIN Instructor

●Successfully trained 519 students ranging from 19-48 the skillsets required to pass Microsoft Certifications and ICAS3 for Job placement in Broome County, Binghamton NY

Server/Clients

●Desktop system administration.

●Software installation, upgrades, & technical support.

●Windows 2000-Windows 7 OS patches, updates, and troubleshooting.

●Apple OS Panther-Snow Leopard patches, updates, and troubleshooting.

Network

●Configuration and maintenance of Cisco routers and switches.

●Active Directory: Domain design, user and computer group policies.

●Configure and maintain network topology.

Off Campus Community College Transport 02/2004-06/2007

Title: Late Night Monitor

Edison Engineering & Construction 06/2005-08/2005 06/2006-08/2006

Title: Intern Engineer

●During contract projects, strengthened use of MS Office Project AutoCAD and blueprint documents.

●Hands on electrical work, cutting and measuring sheet rock, wood and copper pipes.

●Became familiar with an array engineering principles, tools, and industry software.

New York City Department of Education 07/2002-08/2004

Title: Help Desk Team Lead

●Provided desktop and school technology support to staff and students.

●Worked on school wide infrastructure refresh under New York City Department of Education district office guidelines.

●Trained new student employees on desktop support principles. Ensured A+ Certification minimum.

Education

Binghamton University 2003-2009

Bachelors of Science in Computer Science & Bachelors of Arts in Sociology

Training

Team Leadership training via Extreme Ownership training under Leif Babin of Seal Team six

Certifications

●Microsoft Certified IT Professional: Enterprise Administrator and Enterprise Messaging on Exchange 2010

●MCSE Messaging 2018 (upgrade path in progress)

●VMware VCP6-DCV Exam completed 2018 (Foundations exam in progress)

Languages

●Fluent in French, Creole, and written Spanish.



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