Shawn Timbers Pendrell

Shawn Pendrell M365 Security Engineer Department of defense Secret Clearance Cell:--SUMMARY I am a highly analytical IT professional with a proven track record of troubleshooting network resources, evaluating technical alternatives, and maintaining complex enterprise IT environments. I excel at developing and implementing network solutions that enhance system performance and reliability. My expertise spans Windows Server platforms, cloud technologies (Azure, AWS, Exchange), and core networking (TCP/IP). I am skilled in new server builds, engineering new services, resolving hardware/software issues, and providing top-tier technical support. With extensive experience administering corporate IT environments, I consistently deliver solutions that align with business objectives and optimize technology performance. EXPERIENCE M365 Cloud Engineer INNOVATIVE TECHNOLOGY ASSOCIATES, LLC6/2023-Present Conducted thorough analysis of electronic data for legal cases, including data collection, preservation, processing, and review using Microsoft Purview eDiscovery, enabling legal teams to search, filter, and organize large data sets efficiently. Monitored and troubleshot Active Directory and Entra ID (Azure AD) synchronization processes, ensuring seamless identity management and minimal user disruption in hybrid cloud environments. Utilized AvePoint Fly Tool to execute Microsoft 365 tenant-to-tenant migrations, including Exchange Online, SharePoint Online, Teams, OneDrive, and Teams chat data, delivering seamless user experiences and data integrity. Provided Tier 3 support for escalated M365 and infrastructure issues, resolving complex hardware and software problems, and ensuring high-quality user experience across diverse IT environments. Collaborated with cross-functional teams to align M365 solutions with business objectives, ensuring seamless integration with existing IT infrastructure and optimizing end-user productivity. Developed and maintained PowerShell scripts to automate administrative tasks, streamline user onboarding, and enhance overall operational efficiency within the M365 environment. Administered and optimized Microsoft Entra ID (formerly Azure AD), managing user identities, groups, and access controls to maintain a secure, efficient, and scalable hybrid cloud environment. Deployed and managed Data Loss Prevention (DLP) policies using Microsoft Purview, protecting sensitive data in emails, Teams, SharePoint, and OneDrive through robust controls and automated remediation workflows. Integrated Microsoft Purview with M365 compliance features—including Communication Compliance and eDiscovery—to support regulatory requirements, internal investigations, and data governance initiatives. M365 Security Engineer Steampunk12/2022 – March 2023 Use Microsoft Defender Suite tools to detect, prevent, investigate, and response across endpoints, identities, email, and applications to provide integrated protection against sophisticated attacks. Provide security guidance & hands-on expertise in the Azure environment. Assess security controls & recommend implementing the best practice controls per Microsoft & CISA guidelines. Working with O365 email team, SOC/Cybersecurity/compliance team to implement security controls for Microsoft Defender for Office policies for anti-spoofing, anti-spam, anti-phishing, anti-malware, safe links, safe attachments & safe files. Implement Microsoft Defender for Identity policy for service account notifications, firewall rules, network whitelist configuration, coordination with SOC/NOC/ADEX to define and implement rules. M365 analysis and implementation, threat assessment, Cloud security recommendations, MS Defender configuration. Assess M365 environment and provide security recommendations to harden the tenant. Participate in meetings with stakeholders to provide consultation on where to improve costs and secure the environment. Create detailed documentation to present to upper management describing recommended change controls. Senior Systems Engineer III 4/2020 – 9/2022 Citizant, Inc DHS (Contractor) Manage daily Exchange health checks ensuring OnPrem/O365 Exchange Online infrastructure availability Migration of large-scale DHS OnPrem Exchange to O365 Create, modify, troubleshoot Exchange accounts system wide Work with the IT security team to identify and remediate all vulnerabilities in the environment Manage mail flow connectivity of Exchange OnPrem and O365 ensuring optimal delivery Define, configure, and troubleshoot Exchange OnPrem SMTP Connectors Troubleshoot and configure Exchange OnPrem DAG’s SME for Windows Server environment which includes Active Directory, SCCM, Group Policy, DHCP/DNS server, Hyper-V, vSphere, Exchange Monitor and troubleshoot Exchange, and AD/Azure AD syncs Azure AD-Connect in a hybrid environment Participate in daily meetings with the customer and management providing recommendations of the Exchange environment efficiency/availability Responsible for providing senior level support for Teams Monitor and deploy production server/application updates for Windows/Exchange/Azure servers Responsible for infrastructure engineering and architecture of environment Perform eDiscovery, protection, remediation, and forensics or legal discovery (O365 Security and Compliance. SPAM prevention and content filtering. Perform ServiceNow request for Exchange Monitor/manage Microsoft 365 G3 GCC and Azure Active Directory Premium P2 for Government Licenses Created PowerShell scripts to simplify tasks/ease of administration Provide tier 3 technical support Systems Engineer 4/2019 – 3/2020 Pinao Consulting, LLC USMC (Contractor) Provided comprehensive definition of all aspects of System Development from analysis of mission needs to verification of System Performance Researched techniques and solutions for complex System Design Requirements Participated in Site Testing, Systems Engineering Technical Review (SETR) events, Security Accreditation, and formal Acceptance Testing Reviewed completion and implementation of System additions or enhancements and recommended corrections in Technical Application and Analysis to Management Conducted Hardware and Software studies and prepared Technical Reports on assessments Reviewed System interoperability from both Data Exchange and Communications Exchange Engineer1/2018 - 7/2018 US Coast Guard (Contractor) Owned and modified as appropriate system configuration settings; established best practices and maintenance standards for assigned systems Developed, tested, communicated, and executed enterprise-wide migration from Exchange public folder use to alternate options Implemented infrastructure, software and policy changes required to migrate government assets from onboard Identified and investigated hardware and software issues, performed root cause analysis, and implemented an action plan for the resolution and dissemination of conclusions I have worked as a subject matter expert for architecture, performance tuning, capacity planning, and design of new and upcoming technologies related to messaging and collaboration Applied enhancements fixes as necessary to maintain system performance and meet security standards Applied analytical skills and knowledge of Microsoft technologies to ensure overall hardware and software technical support services for Active Directory, Outlook, Exchange, and OCS for Business servers in a clustered (database availability group) environment Provided oversight for the disaster recovery plan and commence escalation procedures as needed Acted as subject-matter expert (SME) and provide after-hour support and On-Call support as required Proactively monitored, reported, and managed the Exchange environment on a day-to-day basis Applied enhancements and/or fixes as necessary to maintain system performance and meet security standards Managed Service and Problem tickets within established SLAs Senior Systems Admin 1/2009 - 9/2017 US Department of Commerce (Contractor, DoD Required Secret Clearance) Managed Exchange environment for email retention and the recovery of mail for litigation Managed BlackBerry (using Blackberry Enterprise Server) and iPhone devices (using Good for Enterprise, MaaS360) Migrated users from a Novell/GroupWise environment to new Active Directory and Exchange environment Provided day-to-day operations by designing, supporting, managing, maintaining, and troubleshooting Windows systems Provided support for various technologies including Windows Server (2K, 2K3, W2K8 R2, 2016), Active Directory, Microsoft Exchange 2010 (Edge Transport, Hub Transport, OWA, Client Access, and Forefront Threat Management Gateway) Wrote Microsoft PowerShell scripts for automation purposes Provided configuration and maintenance of enterprise NetBackup and Backup Exec System Recovery Managed monthly backups of all XenServers Managed virtual environment for Citrix XenApp 6 hosted through Xenserver, including Edge sight and NetScaler with Access Gateway products with full redundancy Managed Citrix for remote access and internet access including account creations, msi package deployment, access restrictions, and performance upgrades Performed system monitoring through Nagios Managed print and scan servers Systems Engineer 7/2001 - 1/2009 Department of Justice (Contractor) Provided installations, support, diagnosis, and repair for Windows based operating systems, as well as third party applications for clients Maintained and troubleshot Windows and NetWare clients and networked printers and scanners Performed Local Area Network (LAN) Administration including adding and deleting users Trained users on software and equipment usage. Provided configuration and maintenance of enterprise backup functions, to include setup and verification of backup jobs, use of various types of tape library hardware, and the implementation of data backup and recovery policies Responsible for capacity planning and monitoring of Microsoft and Novell based Network Operating Systems Responsible for all file server installations and maintenance, monitoring, data redundancy, backup and recovery, security, GroupWise email infrastructure, NDS tree design and maintenance Developed and implemented Disaster Recovery for GroupWise e-mail infrastructure (115,000 users) as well as DS replication for NetWare servers Network Operations Manager1/1995 - 7/2001 Sherikon Inc. Responsible for all aspects of 10-site wide area network Designed, specified, configured, installed, and maintained wide and local area network hardware, software, and telecommunications services such as personal computers, system software, software applications, printers, servers, routers, bridges, switches, modems, cabling, and Internet service providers Established and maintained network users, user environment, directories, and security Trained users on software and equipment usage Responded to the needs and questions of network users concerning their access to resources on the network and the operation of various software programs Developed and communicated standards for use, operations, and security of network, personal computers, and data Communicated with other departments to report and resolve software, hardware, and operations Consulted with department managers to develop system solutions consistent with organizational objectives Researched and evaluated new technologies Installed and tested software upgrades Collected and analyzed network and memory utilization Developed and implemented disaster recovery procedures Supervised 4 employees: carrying out supervisory responsibilities in accordance with the organization's policies and applicable laws EXPERTISE O365 Security and Compliance O365 Exchange Online, Teams AD/Azure AD sync Microsoft Entra ID Azure Active Directory Admin Center Exchange hybrid Microsoft Exchange 2010/2016 Microsoft Office 365 Suite Microsoft PowerShell Microsoft Windows Server 2K, 2K3, W2K8, 2016 R2, 2019 ADFS Forefront Threat Management GatewayE-mail discovery Active Directory MaaS360 SCOM RSA SecurID XenApp 6, XenDesktop 6/7, XenServer 5/6 Raritan McAfee Endpoint Nagios VERITAS Backup Exec WebTrends ARCserve NetBackUp Linux 5 MessageScreen MimeSweeper Novell e-Directory WebTrends NetApp NetWare 4.x 5x 6x POAM’s F5 Education CIS - Strayer College 1992